EM 3731
EM 3732
EM 3732 Command
Instructions for use
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Contents
Important safety instructions ........................................................................... 2
The EM 3731/3732 receiver family ................................................................. 5
The frequency bank system ........................................................................... 5
Overview of operating controls ......................................................................... 7
Overview of the display ...................................................................................... 8
Brightness control ............................................................................................ 8
Indications and displays ..................................................................................... 9
Status display ................................................................................................. 10
Connecting the antennas ............................................................................. 14
Connecting the receiver to the mains/disconnecting
Deactivating the lock mode ......................................................................... 20
Overview of menus ........................................................................................ 22
Accessories/spare parts ................................................................................... 43
Manufacturer Declarations .............................................................................. 44
Thank you for choosing Sennheiser!
We have designed this product to give you reliable operation over many
years. Over 60 years of accumulated expertise in the design and
manufacture of high-quality electro-acoustic equipment have made
Sennheiser a world-leading company in this field.
Please take a few moments to read these instructions carefully, as we want
you to enjoy your new Sennheiser products quickly and to the fullest.
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Important safety instructions
Important safety instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other.
A grounding type plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly
at plugs, convenience receptacles, and the point where they exit from
the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury
from tip-over.
13. Unplug this apparatus during lightning storms or when unused for
long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power
supply cord or plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, when the apparatus has been exposed
to rain or moisture, does not operate normally, or has been dropped.
15. To completely disconnect this apparatus from the AC mains,
disconnect the power supply cord plug from the AC receptacle.
16. WARNING: To reduce the risk of fire or electric-shock, do not expose
this apparatus to rain or moisture.
17. Do not expose this equipment to dripping or splashing and ensure
that no objects filled with liquids, such as vases, are placed on the
equipment.
18. The mains plug of the power supply cord shall remain readily
operable.
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Important safety instructions
Hazard warnings on the rear of the receiver
The label shown on the left is attached to the rear of the device. The
symbols on this label have the following meaning:
This symbol is intended to alert the user to the presence of uninsulated
dangerous voltage within the device’s enclosure that may be of sufficient
magnitude to constitute risk of fire or electric shock.
This symbol is intended to alert the user to the risk of electric shock if the
device is opened. There are no user serviceable parts inside. Refer servicing
to qualified personnel only.
This symbol is intended to alert the user to the presence of important
operating and maintenance instructions in the literature accompanying
this device.
Power source
This device should be operated only from the type of power source
indicated on the type plate. If you are not sure of the type of power supply
to your building, consult your dealer or local power company.
Overloading
Do not overload wall outlets and extension cords as this may result in fire
and electric shock.
Replacement parts
When replacement parts are required, be sure the service technician has
used replacement parts specified by the manufacturer or those having the
same characteristics as the original part. Unauthorized substitutions may
result in fire, electric shock, or other hazards.
Safety check
Upon completion of any service or repairs to this device, ask the service
technician to perform safety checks to determine that the device is in safe
operating order.
Danger of hearing damage due to high volumes
This is a professional receiver. Commercial use is subject to the rules and
regulations of the trade association responsible. Sennheiser, as the
manufacturer, is therefore obliged to expressly point out possible health
risks arising from use.
This receiver is capable of producing sound pressure exceeding 85 dB(A).
85 dB(A) is the sound pressure corresponding to the maximum
permissible volume which is by law (in some countries) allowed to affect
your hearing for the duration of a working day. It is used as a basis
according to the specifications of industrial medicine. Higher volumes or
longer durations can damage your hearing. At higher volumes, the
duration must be shortened in order to prevent hearing damage. The
following are sure signs that you have been subjected to excessive noise
for too long a time:
y
y
You can hear ringing or whistling sounds in your ears.
You have the impression (even for a short time only) that you can no
longer hear high notes.
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Delivery includes
Intended use of the receiver
Intended use of the EM 3731 single receiver or the EM 3732 and EM 3732
Command twin receivers includes:
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y
using the device for professional purposes,
having read these instructions, especially the chapter “Important
y
using the device within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the receiver other than as described in these
instructions, or under operating conditions which differ from those
described herein.
Delivery includes
Delivery of the receiver includes:
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1 EM 3732 Command twin receiver or
1 EM 3732 twin receiver or
1 EM 3731 single receiver
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y
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3 mains cables (with EU, UK and US plug)
2 BNC antenna daisy chain cable (50 Ω)
1 BNC word clock daisy chain cable (75 Ω)
4 device feet
1 RJ 45 Ethernet cable
2 antennas
1 instruction manual
1 CD ROM with:
– the “Wireless Systems Manager” (WSM) PC software
– the instruction manual of the “Wireless Systems Manager” software
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The EM 3731/3732 receiver family
The EM 3731/3732 receiver family
The receivers of the EM 3731/3732 receiver family ensure highest
reception reliability and offer unmatched ease of use. Due to their large
switching bandwidth and numerous connection options, these receivers
provide maximum flexibility in daily operation.
The EM 3731/3732 receiver family is comprised of the following models:
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EM 3732 Command twin receiver
EM 3732 twin receiver
EM 3731 single receiver
All EM 3731/3732 receivers have the following features:
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90 MHz switching bandwidth
Scan function
Frequencies tunable in steps of 5 kHz
True diversity reception
Integrated antenna splitter for daisy chaining up to eight receivers
DSP-based audio expander, HiDyn plus™(HDP)
AES3 digital audio output
External word clock synchronization of the digital audio output
Audio output level can be set in increments of 1 dB
Transformer balanced audio outputs
Command audio output (EM 3732 Command receiver only)
Ethernet socket for connection to a PC
Receivers can be monitored and remote controlled using the supplied
Sennheiser WSM PC software
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y
Operation via jog dial
Hot keys for storing, synchronization, headphone selection and escape
function
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Intuitive, icon-based operating menu
Display with high contrast and intensity
LEDs for indicating warning states
Infra-red synchronization of receiver settings to suitable transmitters
Both receivers of a twin receiver can be monitored – individually or
simultaneously – via headphones
The frequency bank system
The receivers with their 90 MHz switching bandwidth are available in nine
UHF frequency ranges. Please note: Frequency usage is different for each
country. Your Sennheiser agent will have all the necessary details on the
available legal frequencies for your area.
Range A: 470 to 560 MHz
Range B: 518 to 608 MHz
Range C: 548 to 638 MHz
Range D: 614 to 704 MHz
Range E: 678 to 768 MHz
Range F: 708 to 798 MHz
Range G: 776 to 866 MHz
Range H: 814 to 904 MHz
Range I: 870 to 960 MHz
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The EM 3731/3732 receiver family
The receivers have seven frequency banks.
Frequency bank
Channel
1
2
3
4
5
6
U
Optimized for
Optimized for
maximum
transmission
reliability
the maximum
number of
channels
1
2
…
The receiving frequencies are
factory-preset (see enclosed
frequency table) and cannot be
changed.
The receiving frequencies
can be freely selected
within the switching
bandwidth.
max. 60
CAUTION! Risk of reception interference!
If – within the receiver’s frequency range – transmitters
transmit on channels from different frequency banks,
reception can be subject to interference and inter-modulation.
Only the factory-preset frequencies within the frequency
banks “1” to “6” are interference and inter-modulation free.
̈ Set all transmitters of a multi-channel system to different
channels within the same frequency bank.
Distribution of the receiving frequencies within the frequency banks 1 to 6:
Frequency
bank
Distribution of the receiving frequencies within the
frequency banks
1
2
3
4
5
6
The varying accumulation of frequencies within the frequency banks
allows you to use as many channels as possible in a crowded frequency
band.
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Overview of operating controls
Overview of operating controls
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A Front panel
I BNC socket for word clock daisy chain output (75 Ω)
1 Rack mount “ears”
J XLR-3 socket (male) for Command output 2*,
balanced (EM 3732 Command twin receiver only)
2 Headphone output, ¼“ (6.3 mm) jack socket
3 Headphone volume control
4 Display (see next page)
5 Warning triangle indicating error states
6 esc button, backlit
K XLR-3 socket (male) for audio output AF out 2*,
balanced (except EM 3731 single receiver)
L XLR-3 socket (male) for Command output 1*,
balanced (EM 3732 Command twin receiver only)
M XLR-3 socket (male) for audio output AF out 1*,
7 Jog dial
balanced
8 save button, backlit
N LED for booster supply of antenna input A
9 sync button, backlit
O BNC socket, antenna input A
(ANT A – RF in, DC OUT, 50 Ω)
0 Headphone button, backlit
(except EM 3731 single receiver)
P BNC socket, daisy chain output A
(ANT A – RF out)
A Infra-red interface
Q BNC socket, daisy chain output B
B Display for external word clock synchronization
(ANT B – RF out)
C
button, backlit
R BNC socket, antenna input B
B Rear panel
(ANT B – RF in, DC OUT, 50 Ω)
D 3-pin mains socket
S LED for booster supply of antenna input B
T Label with hazard warnings
E LED for LAN data transmission
F RJ 45 socket for LAN connection
U Type plate
G XLR-3 socket (male) for digital audio output,
V Label with frequency range for daisy chaining
digital balanced, AES3
H BNC socket for word clock input (75 Ω)
*) The audio outputs marked with the number “1” output the audio signal of the left receiver of the twin
receiver (as viewed from the front); the audio outputs marked with the number “2” output the audio signal of
the right receiver.
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Overview of the display
Overview of the display
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»
¿
²
¶
º
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´
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¾
Reception display
³ RF level display “RF” for antenna A
· Diversity display (antenna A or antenna B active)
» RF level display “RF” for antenna B
¿ Audio level display “Dev”
´ Display of the squelch threshold
Status display
² Frequency display
¶ “MHz” – appears when the frequency is displayed
º 6-step transmitter battery status display
¾ Command display (status display of the audio outputs AF and COM)
(EM 3732 Command twin receiver only)
µ Display for the current frequency bank and channel or the name
Brightness control
The display has an automatic brightness control. The brightness is dimmed
after the last key stroke. With each new button press, the display lights up
with full brightness.
Triggers for dimming
No service
Squelch not reached
after
60 s
20 min
Behavior of the display
Display is slightly dimmed
Display turned off
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Indications and displays
Indications and displays
The displays provide information on the operating states of the
corresponding receiver and those of the received transmitter.
Reception display
The reception display is permanently displayed. If you do not press a
button on the transmitter, the display will dim after 60 seconds
RF level display “RF” for the antennas
signal for antenna B.
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When the RF signal of the received transmitter is too weak on both
antennas:
Mute
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the text “Mute” flashes in alternation with the status display,
the receiver is automatically muted to suppress hissing noise.
Display of the squelch threshold
threshold. The squelch threshold can be adjusted in the “Squelch” menu
If the squelch threshold is not reached for 20 minutes, the display dims.
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Diversity display
The receivers operate on the true diversity principle (see “Diversity
diversity section A (i.e. antenna A) or diversity section B (i.e. antenna B) is
active. The letter of the active diversity section appears backlit.
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Indications and displays
Audio level display “Dev”
¿
transmitter.
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PEAK
When the transmitter’s audio input level is excessively high, the receiver’s
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When the transmitter is overmodulated frequently or for an extended
period of time, the text “AF Peak” appears and the warning triangle for
AF Peak
Status display
The status shows the receiving frequency, the transmitter battery status
and – depending on the selection made in the “Display” menu – either the
frequency bank and the channel number or the name of the receiver. With
the EM 3732 Command receiver, the command display can also be
displayed within the status display. The contents of the status display can
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NAME
When in the operating menu, you can return to the status display by
Frequency display
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Display for the current frequency bank and channel or the name
The display for the current frequency bank and channel or the name µ
shows – depending on the selection made in the “Display” menu – the
following:
BANK
CH
y
y
Frequency bank “1 … 6, U” and channel number “1 … 60”
Name
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Indications and displays
Transmitter battery status display
the transmitter’s remaining battery/accupack capacity:
Capacity
Accupack
Number of segments
Battery
approx. 100 %
full
approx. 80 %
approx. 60 %
approx. 40 %
approx. 20 %
-
half-full
-
-
(Low Batt)
approx. 0 % almost empty
Note:
If no battery/accupack status signal is received, the battery status
display is not shown.
When the battery/accupack is almost empty, text “Low Batt” flashes in
alternation with the status display. In addition, the warning triangle for
Low Batt
Command display (status display of the audio outputs AF and COM)
The command display is only available with the EM 3732 Command twin
receiver.
AF
COM
Via the “Command” menu, you can configure the receiver so that – with
the command button of the transmitter pressed – the audio signal is
available at only one of the outputs or at both (see “Configuring the audio
mitter’s audio signal is available.
When “AF” lights up brightly, the audio signal is available at the audio
AF
If the “AF” symbol does not appear, the audio signal is not issued on the
When “COM” lights up brightly, the audio signal is available at the
COM
If the “COM” symbol does not appear, the audio signal is not issued on the
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Indications and displays
LEDs for booster supply of antenna inputs
y
the booster supply voltage is applied to the corresponding antenna
y
the booster supply voltage for the corresponding antenna input A O
y
the booster supply voltage is short-circuited or overloaded.
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Putting the receiver into operation
Putting the receiver into operation
Fitting the device feet
When the receiver is not installed in a rack, avoid the receiver sliding
around and reduce the chance of damage to the receiver and to any
surface on which it is placed by fixing the four soft rubber self adhesive
feet to the base of the receiver in the positions indicated.
Note:
Do not fit the rubber feet when rack mounting the receiver.
CAUTION! Risk of staining of furniture surfaces!
Some furniture surfaces have been treated with varnish, polish
or synthetics which might cause stains when they come into
contact with other synthetics. Despite a thorough testing of the
synthetics used by us, we cannot rule out the possibility of
staining.
̈ Do not place the receiver on delicate surfaces.
̈ Ensure that the base of the receiver is clean and free from grease
before fitting the rubber feet.
̈ Fix the rubber feet to the base of the receiver by peeling off the backing
paper and fitting them as shown in the diagram on the left.
Rack mounting
CAUTION! Risks when rack mounting the receiver!
When installing the device in a closed or multi-rack assembly,
please consider that, during operation, the ambient
temperature within the rack may significantly rise above room
temperature.
̈ The ambient temperature within the rack must not exceed
the temperature limit specified in the specifications.
̈ When installing the device in a rack, take good care not to
affect the ventilation required for safe operation or provide
additional ventilation.
̈ Make sure the mechanical loading of the rack is even to
avoid a hazardous condition such as a severely unbalanced
rack.
̈ When connecting the device to the power supply, observe
the information indicated on the type plate. Avoid circuit
overloading. If necessary, provide overcurrent protection.
̈ Ensure a reliable mains ground connection of the device by
taking appropriate measures.
̈ When installing the device in a closed or multi-rack
assembly, please note that intrinsically harmless leakage
currents of the individual devices may accumulate, thereby
exceeding the allowable limit value. As a remedy, ground the
rack via an additional ground connection.
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Putting the receiver into operation
The rack mount “ears” are already attached to the receiver at the factory.
To mount the device into a 19" rack:
̈ Slide the receiver into the 19" rack.
included).
Connecting the antennas
CAUTION! Danger of short-circuit due to uninsulated antennas!
If you switch the booster supply voltage on, a 12 V DC voltage is
applied to the antennas – even when you switch the receiver off!
If uninsulated antennas come into contact with objects which
conduct electricity, this voltage can produce sparking and audio
interference.
̈ Either use insulated antennas or
̈ always mount uninsulated antennas so that they cannot
come into contact with objects which conduct electricity.
y
y
y
the two supplied telescopic antennas to the rear of the receiver (see
next section) or
the two supplied telescopic antennas to the front of the receiver (see
two remote antennas to the rear of the receiver (see “Mounting and
supplying the antenna signals to further receivers (see “Daisy chaining
Connecting the antennas to the rear of the receiver
The telescopic antenna can be mounted quickly and easily and are suitable
for all applications where – good reception conditions provided – a
wireless transmission system is to be used without a large amount of
installation work.
rear of the receiver.
̈ Align the telescopic antennas upwards in a V-shape.
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Putting the receiver into operation
Mounting the antennas to the front of the rack
When rack mounting the receiver, you require the GA 3030 AM antenna
mount (available as an accessory) to mount the antenna connections to
the front of the rack. The GA 3030 AM antenna mount consists of:
y
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2 BNC extension cables (screw-in BNC socket W to BNC connector [)
2 antenna holders Z
4 screws
2 washers Y
2 nuts X
̈ Guide the BNC cables through the holes in the rack mount “ears” as
shown in the diagram on the left.
̈ Screw the antenna holders Z to the BNC sockets Y using the supplied
washers X and nuts W.
̈ Secure the antenna holders Z to the handles of the receiver using two
of the supplied screws respectively.
rear of the receiver.
̈ Slide the receiver into the 19’’ rack.
̈ Connect the antennas \ to the BNC sockets W.
̈ Align the antennas upwards in a V-shape.
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Putting the receiver into operation
Mounting and connecting remote antennas
Use a remote antenna (available as accessories) when the receiver
position is not the best antenna position for optimum reception.
of the receiver using a low-attenuation 50-Ω coaxial cable.
Note:
Ready-made antenna cables from Sennheiser are available as
accessories with length of 1 m, 5 m and 10 m (see “Accessories/spare
̈ If you connect active antennas (e.g. A 3700, AD 3700) or antenna
boosters (e.g. AB 3700), switch the DC supply voltage for external
antenna boosters, switch the booster supply voltage off so that the
Note:
switched on even when the receiver is switched off.
̈ Position antennas in the same room in which the transmission takes
place! Maintain a minimum distance of 1 m between antennas and a
minimum distance of 50 cm between antennas and metal objects
(including reinforced concrete walls)!
Daisy chaining receivers
The receivers feature an integrated antenna splitter so that up to eight
receivers can be daisy chained using the supplied short antenna daisy
̈ Connect the two supplied telescopic antennas or two remote antennas
the first receiver.
̈ Use the supplied 50 Ω antenna cables to daisy chain the receivers as
shown in the diagram on the left.
Note:
The antenna signals are also daisy chained when a receiver is switched
off. If the booster supply voltage is switched on (see page 28), it
remains switched on even when the receiver is switched off.
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Putting the receiver into operation
Connecting the receiver to the mains/disconnecting the
receiver from the mains
CAUTION! Damage due to electric current!
If you connect the receiver to an unsuitable power supply, this
can cause damage to the device.
̈ Use the supplied mains cable to connect the receiver to the
mains (100 to 240 V AC, 50 or 60 Hz).
̈ Ensure a reliable mains ground connection of the receiver –
especially when you are using multi-outlet power strips or
extension cables.
The receiver has no mains switch. To connect the receiver to the mains:
̈ Plug the mains connector into the wall socket.
To disconnect the receiver from the mains:
̈ Pull out the mains connector from the wall socket.
All daisy chained signals are interrupted, i.e.:
– the booster supply voltage,
– the signals of the external word clock generator.
Connecting the amplifier/mixing console
The receiver has transformer balanced audio outputs.
̈ Connect the amplifier/mixing console to the XLR-3 socket
receiver).
̈ Via the operating menu of the corresponding receiver, adjust the level
of the audio output to the input of the amplifier or mixing console (see
Connecting devices with AES3 digital input
receivers in AES3 format.
̈ Use a special double-shielded 110 Ω AES3 cable to connect the device
with AES3 digital input to the digital balanced XLR-3M audio
This ensures that the digital data transmission interferes with the RF
reception.
Note:
A ready-made AES3 cable from Sennheiser is available as an accessory
with a length of 10 m (see “Accessories/spare parts” on page 43).
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Putting the receiver into operation
Connecting an external word clock generator
The receiver can digitalize the audio signal and output it via the digital
sampling rates of 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz.
If you want to connect an external word clock generator instead, proceed
as follows:
̈ Use a shielded 75 Ω coaxial BNC cable to connect the external word
– lights up permanently when the digital audio output of the receiver
is synchronized with the external word clock generator,
– flashes when “Ext.” is selected in the “Clock” menu but no external
word clock generator is connected,
– flashes when the signal of the external word clock generator is
available but has not synchronized the digital audio output of the
receiver
– is off when the receiver’s internal word clock generator is used.
Notes:
– Both receivers of a twin receiver use the same word clock signal.
supplying the word clock signal to further daisy chained receivers
using the supplied BNC word clock daisy chain cable. The word clock
signal is also daisy chained when a receiver is switched off.
Connecting the receivers to a PC via Ethernet
The receivers can be centrally configured and monitored via a PC and the
supplied “Wireless Systems Manager” software. Additionally, you can
update the firmware in the receivers.
To connect the receivers to a PC:
Note:
If you want to connect several receivers to the same Ethernet socket of
your network, you require a standard 100Base-T Ethernet switch.
̈ Connect the supplied RJ 45 Ethernet cable to the RJ 45 socket for LAN
̈ Install the “Wireless Systems Manager” software on your PC.
̈ Continue as described in the instruction manual of the “Wireless
Systems Manager” software.
transmitted.
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Using the receiver
When you are working with the “Wireless Systems Manager” software,
you can use the “Spectrum Analyzer” tool to perform a continuous
frequency scan. The “Spectrum Analyzer“ tool uses the receiver that you
select to check the relevant frequency range for signals and records the
corresponding measured values. For detailed information, please refer to
the chapter “The ’RF Spectrum Analyzer’ tool” of the “Wireless Systems
Manager” manual.
Scanning
When selecting this receiver in the “Spectrum Analyzer”, please note that
during the frequency scan:
y
y
y
you cannot use the selected receiver for its normal purpose,
the text “Scanning” is displayed and
the receiver is automatically muted.
Using the receiver
Switching the receiver on/off
The two receivers of the EM 3732 or EM 3732 Command twin receiver are
not a mains switch.
clock
save
sync
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Note:
If you only want to use one of the two receivers of the EM 3732 or
EM 3732 Command, you can set the second receiver to standby mode
To switch the receiver on:
The display shows the product name (e.g. EM 3731) and the serial
number of the current firmware behind “Software”. The status display
appears after several seconds.
To switch the receiver off:
The receiver is switched off but daisy chained signals continue to be
output. This means that:
switched on,
– the signal of the external word clock generator is looped through to
19
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Using the receiver
Connecting the headphones/adjusting the volume
CAUTION! Danger of hearing damage!
Listening at high volume levels for long periods can lead to
permanent hearing defects.
̈ Set the volume for the connected headphones to the
minimum before putting the headphones on.
receivers of the EM 3732 or EM 3732 Command twin receiver have a
you to either monitor the audio signal of one receiver or to simultaneously
monitor the audio signals of both receivers.
A
B
RF
300
% DEV
PEAK
it to the left as far as possible.
True Diversity Receiver EM 3732
790.80
100
30
100
50
B
03.03
C
10
10
μV
̈ Connect headphones with a ¼” (6.3 mm) stereo jack plug to the
To monitor the audio signals of one of the two receivers of a twin receiver:
save
sync
A
B
RF
300
% DEV
PEAK
M
H
790.800 z
03.03
̈ Press the headphone button 0 of the receiver whose audio signals you
100
30
100
50
BANK
CH
AF COM
esc
10
10
μV
want to monitor.
To simultaneously monitor the audio signals of both receivers of a twin
receiver:
̈ Simultaneously press the headphone buttons 0 of both receivers.
The audio signals of the left receiver are output via the left headphone
channel, the audio signals of the right receiver are output via the right
headphone channel.
̈ Increase the volume gradually.
To switch the headphone output off:
̈ Press the headphone button 0 of the receiver whose headphone
output you want to switch off.
Deactivating the lock mode
When the receivers are remote controlled via a PC and the supplied
“Wireless Systems Manager” software, their buttons can be locked via the
“Wireless Systems Manager” software.
To deactivate the lock mode:
status display appears.
Hold esc to unlock
The lock mode is deactivated and the settings can be made manually.
20
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Using the receiver
Synchronizing the transmitter with the receiver frequency
Via its infra-red interface, the receiver can transfer the frequency and the
name to suitable transmitters (e.g. SK 5212, SKM 5200 or SKP 3000).
Note:
The transmitter must be from the same frequency range (“A” to “I”,
see page 5) and be equipped with the same compander system (HDP,
see page 38) as the receiver!
save
sync
digital audio
processing
EV
M
H
790.800 z
synchronization.
BANK
AF
COM
esc
03.03
CH
sync
̈ Position the transmitter’s infra-red interface at a max. distance of 5 cm
The transfer starts automatically. During the transfer, the two blue
save
sync
digital audio
A
B
RF
300
%
processing
PEA
100
30
10
5
10
µV
1
– After successful completion of the synchronization, the two blue
name are now also set on the transmitter and the transmission link
is ready for operation.
sync
<
5cm
– If an error occurred during synchronization (e.g. the transmitter is
too far away from the receiver), the two blue LEDs in the infra-red
red.
Note on the SKM 5200 hand-held transmitter:
The infra-red interface of the SKM 5200 hand-held transmitter is
located at the left-hand margin of the display. Position the
transmitter’s infra-red interface precisely in front of the infra-red
SKM 5200
21
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The operating menu
The operating menu
Overview of menus
Menu
level
Display
Tune
Function of the menu
Setting a receiving frequency (this frequency is
automatically stored in channel “01” of the
frequency bank “U” (user bank)).
Switching between the frequency banks and
between the channels of a frequency bank
Entering a name
Bank.Ch
Name
Squelch
Booster
AF Out
Adjusting the squelch threshold
Switching the booster supply voltage on/off
Adjusting the audio output level
Adjusting the sampling rate of the digital audio
output
Clock
(EM 3732 Command receiver only)
Configuring the audio and command outputs
Changing to the extended menu
Command
More
Scan
Scanning the frequency banks for free frequencies
Selecting the status display
Adjusting the IP address of the receiver
Displaying the MAC address
Display
IP-Addr
MAC
Standby Setting the receiver to standby mode
Reset Loading the factory-preset default settings
22
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The operating menu
Working with the operating menu
By way of example of the “Tune” menu, this section describes how to use
the operating menu.
M
H
After switching the receiver on, the status display is shown on the display
panel.
790.800 z
03.03CH
BANK
AF
COM
Getting into the operating menu
̈ Press the jog dial.
B.Ch
790.
MHz
Tune
The status display is replaced by the operating menu.
The “Tune” menu is displayed together with its current setting. The
position of a menu within the operating menu is illustrated by a graphic
in the upper display margin (the “Tune” menu is on the very left of the
operating menu).
800
1.01
Bank
Selecting a menu
B.Ch
790.
MHz
Tune
of the display.
800
1.01
Bank
The icon of the menu is displayed and the current setting starts
flashes.
B.Ch
790.
MHz
U.01
800
776
UHF
866
MHz
Adjusting a setting
B.Ch
776.
MHz
3.01
866
Depending on the selected menu, it is possible that the next setting
that can be changed and confirmed by turning and pressing the jog
450
UHF
950
MHz
Storing a setting
An animation appears on the display, indicating that the setting has
been stored. The display then changes to the selection mode of the
operating menu.
Exiting the operating menu/cancelling an entry
You can exit the operating menu or cancel an entry at any time.
An animation appears. The display then returns to the previous menu
level. To return to status display, you may have to press the
clock
save
sync
M
H
0.800 z
BANK
AF
COM
esc
.03
CH
23
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The operating menu
Operating menu of the receivers
Selection mode
Setting mode
A
B
RF
% DEV
M
H
300
PEAK
790.800 z
100
30
100
BANK
AF
50
COM
03.03CH
10
µV
10
esc
B.Ch
U.01
866
B.Ch
U.01
866
790.
MHz
790.
B.Ch
790.
MHz
Tune
800
900
800
1.01
Bank
776
UHF
776
UHF
MHz
MHz
Receiving frequency
Adjusting the
receiving frequency
(last three digits)
Adjusting the
receiving frequency
(first three digits)
save
save
save
save
save
B.Ch
1.
B.Ch
5.16
B.Ch
1.01
Bank.Ch
90.
MHz
une
00
790.900MHz
790.900MHz
CEL
Nam
Frequency bank and
channel
Current frequency
bank and channel
Adjusting the frequency
bank (1…6, U) and the
channel (1...60)
+ , - | / 0 1 2 3 4 5 6
7 8 9 * ; < = > A B
+ , - | / 0 1 2 3 4 5 6
7 8 9 * ; < = > A B
CDEFGHIJKLMN
OPQRSTUVWXYZ
.Ch
CE
CDEFGHIJKLMN
30
Squel
CEL
Name
.16
B.Ch
OPQRSTUVWXYZ
Current name
Name
Entering the name
300
µV
300
µV
30
30
10
30
30
30 µV
10 µV
EL
ame
10
10
3
3
Booste
Squelch
Current squelch
threshold
Adjusting the
squelch threshold
30
uelch
+12
AF O
Booster Feed On
Booster Feed Off
Booster
Switching the
booster supply
voltage on/off
Booster supply
voltage
Current setting of
the booster supply
voltage
48
Clock
+12
ooster AF Out
24
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The operating menu
Selection mode
Setting mode
30
q
+12
AF O
Booster
+12 dB
+18 dB
+12
+18
48
+12
ooster AF Out
Clock
Audio output level
Current audio
output level
Adjusting the audio
output level
(-10 dB to +18 dB)
save
save
save
44.1
44.1
48
48
3
kHz
kHz
48
96
88.2
88.2
96
48
18
96
Comm
Clock
F Out
Ext.
Ext.
Sampling rate of the
digital audio signal
Current sampling
rate
Adjusting the
sampling rate (44.1,
48, 88.2, 96, Ext)
3
1
3
AF
AF
AF
COM
COM
96
lock
COM
More
Command
Current setting of
the audio outputs
Audio outputs of the
receiver
Adjusting the main
output “AF”/command
output “COM”
3
3
Scan
Displa
mmand
More
esc
Changing to the
extended menu
25
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The operating menu
Selection mode
Setting mode
mmand
More
esc
Bank 1
2
3
Channel list
Scan new
Scan reset
Free 43 40 42
1
Bank 4
Free 32 31 33 60
5
6
U
Scan
Displa
Displaying the last
scan result
Scanning the
frequency banks for
free channels
Displaying the list
of free channels
Bank 1
2
3
Channel list
Scan new
Scan reset
Free 43 40 42
Bank 4
Free 32 31 33 60
5
6
U
Displaying the new
scan result
Starting the scan
Bank 1
2
3
Channel list
Scan new
Scan reset
Free 43 40 42
Bank 4
Free 32 31 33 60
5
6
U
Number of “free”
channels is reset to
the maximum
Releasing channels
marked with
“Freq. occupied”
Bank 1
2
3
Free 43 40 42
Bank 4
5
6
U
Free 32 31 33 60
Selecting a
frequency bank
10
49
68
75
4
save*
can
Display
IP-Ad
*
After pressing the save button 8, the display automatically changes to the “B.Ch” menu (see page 24) –
i.e. to the selected frequency bank.
26
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The operating menu
Selection mode
Setting mode
1
Scan
Displa
192
168
0
4
1
4
790.800
NAME
790.800
AF COM
0
B.CH
can
Display
IP-Ad
Status display
Current status
display
Selecting the
contents of the
status display
save
192.
168.
0.
192.
168.
0.
192.
049.
068.
0192.
168.
0.
192.
168.
00 1
1B 6
00 0
MAC
4
0.
0
1
0
1
splay
IP-Addr
Auto
Auto
Receiver's IP
address within
the network
Selecting IP bytes
or “Auto”
Entering the IP
address (0…255)
save
00 1B
192.
33 66
00 01
168.
0.
00 1B
66 00
00 01
MAC
OF
00:1B:33:66:00:01
1
Addr
Stand
MAC address for
network operation
Displaying the MAC
address
esc
esc
save
0 1B
000
OFF
6 00
0 01
OFF
MAC
Standby
Rese
Display switches off
Standby mode
Setting the receiver
to standby mode
save
press and
hold
Reset to
factory defaults ?
Reset to
factory defaults ?
000
000
000
OFF
andby
Reset
Reset to factory
defaults
Security check
Progress bar
appears
27
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The operating menu
Adjustment tips for the operating menu
The following adjustment tips apply to the operating menus of all
receivers of the EM 3731/3732 receiver family.
Setting the receiving frequency
Tune Via the “Tune” menu, you can:
y
set the receiver to a receiving frequency that can be freely selected
within the preset frequency range. The receiving frequencies are
tunable in 5-kHz increments within the switching bandwidth of
90 MHz max. If you want to use a receiving frequency from the
enclosed frequency tables instead, see “Selecting a frequency bank and
y
change and store the receiving frequencies in the 60 channels of the
frequency bank “U” (see page 29)
̈ Change to the setting mode of the “Tune” menu.
B.Ch
790.
MHz
The first three digits of the receiving frequency start flashing.
U.01
800
776
866
UHF
MHz
̈ Change the first three digits of the receiving frequency by turning the
save
sync
digital audio
DEV
M
H
processing
̈ Confirm the first three digits of the receiving frequency by pressing the
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
The last three digits of the receiving frequency start flashing.
̈ Change the last three digits of the receiving frequency by turning the
̈ After you have selected the six digits of the receiving frequency, press
The selected receiving frequency is set and automatically stored on the
channel “01” of the frequency bank “U”, i.e. the previously stored
frequency is overwritten. The display changes to the selection mode of
the operating menu.
Selecting a frequency bank and a channel
B.Ch Via the “B.Ch” menu, you can select a frequency bank and a channel from
the enclosed frequency tables.
̈ Change to the setting mode of the “B.Ch” menu.
B.Ch
1.
The number of the frequency bank starts flashing.
790.800MHz
save
sync
digital audio
processing
DEV
M
H
The number of the channel starts flashing.
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
Note:
If during the last scan channels were detected that were occupied or
subject to interference, these channels are marked with a warning
triangle and the text “Freq. occupied” in the “Tune” menu.
Freq. occupied
B.Ch
MHz 1.
790.800
̈ After you have selected the frequency bank and the channel, press
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The operating menu
The selected frequency bank and the selected channel are set. The
display changes to the selection mode of the operating menu.
Changing the receiving frequency for a selected channel in the
frequency bank “U”
Tune Each receiver has seven frequency banks. The frequency banks “1” to “6”
have up to 60 channels that are factory-preset to a receiving frequency
(see enclosed frequency tables). The frequency bank “U” (user bank) has
60 channels to store your selection of receiving frequencies that can be
freely selected in 5-kHz increments within the switching bandwidth. Via
the “Tune” menu, you can freely select the frequencies to be stored in the
frequency bank “U”.
̈ Change to the setting mode of the “B.Ch” menu and select the
B.Ch
U.01
866
790.
800
frequency bank “U” and one of the channels “01” to “60” whose
frequency you want to change and store (see “Selecting a frequency
MHz
776
UHF
MHz
Note:
The receiving frequencies of the channels in the frequency banks “1” to
“6” cannot be changed. When you have selected one of the frequency
banks “1” to “6” and then select the “Tune” menu, the receiver
automatically switches to channel “01” of the frequency bank “U”.
̈ Change to the setting mode of the “Tune” menu and select the
receiving frequency you want to store (see “Setting the receiving
B.Ch
1.
790.800MHz
The selected receiving frequency is set and stored on the selected
channel of the frequency bank “U”, i.e. the previously stored frequency
is overwritten. The display changes to the selection mode of the
operating menu.
Entering a name
Name Via the “Name” menu, you can enter a freely selectable name for the
receiver. The name can be displayed on the status display and can consist
of up to six characters such as:
y
y
y
letters (without pronounciation marks),
number from 0 to 9,
special characters and spaces.
̈ Change to the setting mode of the “Name”
+ , - | / 0 1 2 3 4 5 6
7 8 9 * ; < = > A A B
CDEFGHIJKLMN
OPQRSTUVWXYZ
menu.
EL
The first character of the name starts
flashing.
The selected character starts flashing.
save
sync
digital audio
processing
DEV
M
H
790.800 z
BANK
AF
COM
esc
03.03
CH
The first character is accepted and stops flashing. The next character
starts flashing.
sync
̈ Repeat the last two steps to enter the remaining characters.
̈ After you have entered the six characters of the name, press the save
The name is stored. The display changes to the selection mode of the
operating menu.
In order that the name is displayed on the status display, you may have to
change the contents of status display (see “Selecting the status display”
29
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The operating menu
Adjusting the squelch threshold
Squelch Both receivers are equipped with a squelch that can be adjusted via the
“Squelch” menu. The squelch eliminates annoying noise when the
transmitter is switched off. It also suppresses sudden noise when there is
no longer sufficient transmitter power received by the receiver.
The squelch can be adjusted in 13 steps from 0 to 30 μV. Selecting a
smaller value reduces the squelch threshold, selecting a higher value
increases the squelch threshold. Adjust the squelch threshold – with the
transmitter switched off – to the lowest possible value that suppresses
hissing noise.
Notes:
– If the squelch threshold is adjusted too high, the transmission range
will be reduced. Therefore, always adjust the squelch threshold to the
lowest possible setting.
– If you adjust the squelch threshold to “0”, the squelch is switched off.
If no RF signal is being received, hissing noise will occur. This setting
is for test purposes only.
To adjust the squelch threshold:
̈ Before adjusting the squelch threshold to a different setting, set the
volume on a connected amplifier to the minimum.
̈ Change to the setting mode of the “Squelch” menu.
300
µV
30
10
3
30
The current setting starts flashing.
30 µV
The new setting becomes effective immediately.
save
sync
digital audio
DEV
M
H
processing
̈ After you have adjusted the desired squelch threshold, press the save
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
The squelch threshold is stored. The display changes to the selection
mode of the operating menu.
Switching the booster supply voltage on/off
Booster If you connect antenna boosters (e.g. AB 3700) or active antennas (e.g.
A 3700, AD 3700), select “Booster Feed On” in the “Booster” menu so that
active antennas, select “Booster Feed Off” in the “Booster” menu so that
Notes:
– The booster supply voltage is short-circuit proof.
– If you connect active antennas or antenna boosters, the current
consumption of the overall device is increased.
– If the booster supply voltage is switched on, it remains switched on
even when the receiver is switched off or muted.
̈ Change to the setting mode of the “Booster” menu.
The current setting starts flashing.
Booster Feed On
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The operating menu
̈ Change the setting to “Booster Feed On” or “Booster Feed Off” by
save
sync
digital audio
processing
DEV
M
H
790.800 z
BANK
AF
COM
esc
03.03
CH
The selected setting is stored. When the booster supply voltage is
the selection mode of the operating menu.
sync
Adjusting the audio output level
AF Out Via the “AF Out” menu, you can adjust the maximum output level of the
audio outputs (AF out and Command).
With the EM 3732 Command, the audio level of the Command output 1 L
corresponds to the level of the audio output 1 M and the audio level of the
Command output 2 J corresponds to the level of the audio output 2 K.
The following figures are a guide to the best settings:
y
y
Line input level:
+5
to +18 dB
to +4 dB
Microphone input level: –10
To obtain the best signal-to-noise ration, adjust the respective maximum
audio level to the settings shown above.
̈ Change to the setting mode of the “AF Out” menu.
+12 dB
The current setting starts flashing.
+12
The display shows the selected audio output level.
save
sync
digital audio
DEV
M
H
processing
790.800 z
BANK
AF
COM
esc
03.03
CH
The selected setting is stored. The display changes to the selection
mode of the operating menu.
sync
Selecting the sampling rate for digitalization
Clock Via the “Clock” menu, you can select the sampling rate with which the
analog signal is digitalized and output via the digital balanced XLR-3M
“48 kHz”, “88.2 kHz”, “96 kHz” and “Ext.”. “Ext.” means that the receiver
will use one of above sampling rates from the external word clock
generator. In this case, you first have to connect an external word clock
generator” on page 18) and switch it on.
̈ Change to the setting mode of the “Clock” menu.
44.1
48
The current setting starts flashing.
kHz
48
88.2
96
Ext.
save
sync
digital audio
DEV
M
H
processing
The selected sampling rate is stored. The display changes to the
selection mode of the operating menu.
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
Note:
If you select “Ext.” even though no external word clock signal is
31
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The operating menu
external word clock generator is not connected or switched off), the
display for external word clock synchronization B starts flashing and
the last set sampling rate remains active.
The receiver’s audio outputs have a latency which depends on the sam-
pling rate set in the “Clock” menu. The below table shows these latency
times as well the the distances to which they approximately correspond.
Audio output Sampling rate Latency
Corresponds to a
distance of
kHz
44.1 / 88.2
48 / 96
44.1
ms
1.8
1.7
1.9
1.7
1.8
1.7
approx. ... cm
analog
analog
digital
digital
digital
digital
60
55
65
55
60
55
48
88.2
96
Configuring the audio outputs of the EM 3732 Command twin receiver
Command The EM 3732 Command twin receiver has two audio outputs per receiver:
These audio outputs can be switched on and off via a button on the
transmitter – provided that the transmitter is also equipped with the
command function (a separate power pack with command button is
available for the SKM 5200 transmitter).
Via the “Command” menu, you can determine which of the audio and
command outputs are switched on and off when the command button on
the transmitter is pressed. There are four configuration options:
If the “Command”
… AND the
… THEN the
menu of the receiver is command button
receiver’s audio
configured as shown
below …
on the transmitter outputs are
is …
switched ...
AF
AF out:
Command: off
AF out: on
Command: on
AF out: on
Command: off
AF out: off
Command: on
AF out: on
Command: on
AF out: off
Command: on
AF out: on
Command: on
AF out: on
Command: on
on
not pressed
pressed
1
AF
AF
COM
AF
AF
COM
COM
not pressed
pressed
2
3
4
AF
COM
AF
not pressed
pressed
COM
AF
COM
COM
COM
AF
not pressed
pressed
COM
AF
AF
AF
COM
COM
COM
The active output lights up in the command display; muted outputs are not
32
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The operating menu
̈ Change to the setting mode of the “Command” menu.
1
The current configuration starts flashing.
AF
AF
COM
Note:
save
sync
digital audio
processing
DEV
M
H
790.800 z
If you do not want to use the command function, select the
configuration “4”.
BANK
AF
COM
esc
03.03
CH
sync
The selected configuration is stored. The display changes to the
selection mode of the operating menu.
Changing to the extended menu
More Via the “More” menu, you can change to the extended menu with the
submenus “Scan”, “Display”, “IP-Addr”, “MAC”, “Standby” and “Reset”.
Scanning the frequency banks for interference-free channels
Scan Via the “Scan” menu, you can scan all frequency banks for free channels.
̈ Change to the setting mode of the “Scan” menu.
Channel list
Scan new
Scan reset
The following menu items appear:
– “Channel list”
displays the number of free channels for each frequency bank from
the last scan.
– “Scan new”
scans all frequency banks and displays the number of free channels
for each frequency bank.
– “Scan reset”
Freq. occupied
B.Ch
releases channels that were occupied or subject to interference
during the last scan (these channels a marked with a warning
triangle and the text “Freq. occupied” in the “Tune” menu).
MHz 1.
790.800
Displaying a list of all free channels
Channel list Via the “Channel list” menu, you can display the last scan result. You can
then select a suitable frequency bank and a channel.
Channel list
Scan new
Scan reset
Bank 1 2 3
Free 43 40 42
A table displays the number of free channels for each frequency bank.
Bank 4 5 6 U
Free 32 31 33 60
of free channels.
The selected frequency bank is automatically called up in the “B.Ch”
menu.
save
sync
digital audio
processing
DEV
M
H
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
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The operating menu
Note:
Freq. occupied
B.Ch
After the scan, the channels that are occupied or subject to interference
are marked with a warning triangle and the text “Freq. occupied” in the
“Tune” menu.
MHz 1.
790.800
Starting the scan
Scan new Via the “Scan new” menu, you can scan all frequency banks for free
channels. The last scan result is overwritten.
̈ Before starting the scan, switch all transmitters of your system off,
since channels used by switched-on transmitters will not be displayed
as “free channels”.
Channel list
Scan new
Scan reset
The receiver scans the frequency banks one after the other for free
channels. This can take several minutes. After the scan, a table displays
the number of free channels for each frequency bank and the green
Note:
display changes to the setting mode of the “Scan” menu and the last
scan result is restored.
of free channels.
The selected frequency bank is automatically called up in the “B.Ch”
menu.
save
sync
digital audio
processing
DEV
M
H
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
Note:
Freq. occupied
B.Ch
After the scan, the channels that are occupied or subject to interference
are marked with a warning triangle and the text “Freq. occupied” in the
“Tune” menu.
MHz 1.
790.800
34
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The operating menu
Releasing channels that are used or subject to interference
Scan reset After the scan, the channels that are occupied or subject to interference
are marked with a warning triangle and the text “Freq. occupied” in the
“Tune” menu. Via the “Scan reset” menu, you can unmark these channels.
The last scan result is deleted.
Channel list
Scan new
Scan reset
Bank 1 2 3
Free 43 40 42
Bank 4 5 6 U
Free 32 31 33 60
The number of free channels is reset to the maximum for all frequency
banks.
save
sync
digital audio
processing
DEV
M
H
The selected frequency bank is automatically called up in the “B.Ch”
menu.
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
Multi-channel operation
Combined with Sennheiser 3000 and 5000 series transmitters, the
receivers can form transmission links that are suitable for multi-channel
operation.
CAUTION! Risk of reception interference!
If – within the receiver’s frequency range – transmitters
transmit on channels from different frequency banks, reception
can be subject to interference and inter-modulation. Only the
factory-preset frequencies within the frequency banks “1” to
“6” are interference and inter-modulation free.
̈ Set all transmitters of a multi-channel system to different
channels within the same frequency bank.
Before putting the transmission links into operation, we recommend that
you perform a scan in order to find a frequency bank with a sufficient
number of free channels:
̈ Switch all transmitters off.
page 33).
̈ Set each transmitter/receiver pair in your multi-channel system to a
different free channel within this frequency bank.
35
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The operating menu
Selecting the status display
Display Via the “Display” menu, you can select the status display:
Selectable status display
1. “Name”
Contents of the display
M
H
790.800 z
displays the freely selectable name
NAME
2. “Bank/Channel”
M
H
790.800 z
displays the frequency bank and the
channel number
BANK
CH
03.03
3. “Name/Command”
M
H
790.800 z
NAME
displays the freely selectable name
and the command display
(EM 3732 Command receiver only)
AF
AF
COM
COM
4. “Bank/Channel/Command”
M
H
790.800 z
displays the frequency bank, the channel
number and the command display
(EM 3732 Command receiver only)
BANK
CH
03.03
̈ Change to the setting mode of the “Display” menu.
The current status display starts flashing.
1
790.800
NAME
save
sync
digital audio
DEV
M
H
processing
The selected status display becomes effective. The display changes to
the selection mode of the operating menu.
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
Changing the IP address
IP-Addr Via the “IP-Addr” menu, you can display and change the receiver’s IP
address. The IP address consists of four bytes and each byte consists of up
to three digits (from 0 to 255). The receiver is factory-preset to dynamic
IP addressing (“Auto”).
To manually assign an IP address:
̈ Change to the setting mode of the “IP-Addr” menu.
192.
168.
0.
192.
049.
068.
The first byte starts flashing.
0
Auto
save
sync
digital audio
processing
DEV
M
H
byte.
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
̈ Repeat the last two steps to select all four bytes.
̈ After you have selected the complete IP address, press the save button
8.
The new IP address becomes effective.
36
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The operating menu
To automatically obtain an IP address (dynamic IP addressing):
̈ Change to the setting mode of the “IP-Addr” menu.
The first byte starts flashing.
The new IP address becomes effective.
Displaying the network address (MAC address)
MAC Via the “MAC” menu, you can display the Media Access Control (MAC)
address of the Ethernet interface. The MAC address is fixedly stored in
each receiver and cannot be changed.
̈ Change to the setting mode of the “MAC” menu.
00 1B
The 12-digit MAC address is displayed.
66 00
00 01
00:1B:66:00:00:01
Setting a receiver to standby mode
Standby You can set a receiver to standby mode and mute it. To do so, proceed as
follows:
̈ Change to the setting mode of the “Standby” menu.
OFF
save
sync
digital audio
processing
DEV
M
H
790.800 z
BANK
AF
COM
esc
03.03
CH
and the display is switched off.
sync
Note:
The standby mode remains active even when you switch the receiver
off and on again.
To end the standby mode:
The display is switched on.
Loading the factory-preset default settings
Reset Via the “Reset” menu, you can reset the current settings to the factory-
preset default settings.
̈ Change to the setting mode of the “Reset” menu.
Reset to
factory defaults ?
The question “Reset to factory defaults?” appears. The green
000
All settings except for the booster supply voltage, the sampling rate at
the digital output and the network address are reset to the factory-
preset default settings. The display changes to the selection mode of
the operating menu.
save
sync
digital audio
DEV
M
H
processing
790.800 z
BANK
AF
COM
esc
03.03
CH
sync
37
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Additional information
Additional information
HiDyn plus™ (HDP) noise reduction
RF link
Inherent
noise
of the RF link
Transmitter
Receiver
The EM 3731/3732 receivers are equipped with HDP, the Sennheiser noise
reduction system that reduces RF interference. It increases the signal-to-
noise ratio in wireless audio transmission to more than 110 dB. HDP is a
wideband compander system which compresses the audio signal in the
transmitter in a 2:1 ratio (related to dB) to lift it above the inherent noise
floor of the RF link. In the receiver the signal is expanded in an identical and
opposite way in a 1:2 ratio to restore the original signal, at the same time
reducing the RF noise to below the noise floor of the receiver.
HDP has been specially developed for high quality radiomicrophone
systems.
The EM3731/3732 receivers feature a AES3 digital audio output for digital
mixing consoles. In the receiver the audio signal is digitalized as early as
possible so that the noise reduction (compander) can be realized digitally.
Note:
Only transmitters and receivers that are equipped with HDP can work
correctly with each other. If non HDP equipment was mixed with HDP,
the dynamic range would be drastically reduced and the transmission
would sound blunt and flat. HDP is permanently active and cannot be
switched off.
Squelch
Depending on the strength of the received RF signal, the receiver’s audio
output is opened or muted. Via the “Squelch” menu, the squelch threshold
can be adjusted in 15 steps from 0 to 30 μV.
38
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Additional information
Diversity reception
The receivers operate on the “true diversity” principle:
A receiving antenna receives not only the electromagnetic waves which
reach it by a direct path, but also the reflections of these waves which are
created in the room by walls, windows, ceilings and fittings. When these
waves are superimposed, destructive interference occurs, which can also
be called “field strength gaps”. Repositioning the receiving antenna can
bring
a
solution. With mobile transmitters, however (which all
radiomicrophones are), the “field strength gap” will then occur with a
different transmitter position. These “field strength gaps” can only be
eliminated with true diversity receivers.
In true diversity, instead of one antenna and one receiver there are now
two antennas and two receiver sections. The antennas are spatially
separated. By means of a comparison circuit, the receiver section with the
strongest RF signal is always switched to the common AF output. The risk
of the occurrence of “field strength gaps” in both antennas at the same
time is virtually nonexistant.
The receiver display panel shows the active diversity section (A or B) (see
Receiver section A
Receiver section B
39
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Additional information
If a problem occurs ...
Problem
No operation
indication
Possible cause
No mains connection
Possible solution
Check the connections of the mains cable
Transmitter and receiver are not on the Set transmitter and receiver to the same
same channel
No RF signal
The transmitter is out of range
y
Reduce the distance between
transmitter and receiver
y
Check the squelch threshold setting
The transmitter is not within the range Place the transmitter at a distance of
of the infra-red interface
approx. 5 cm in front of the infra-red
interface (see page 21)
It is not possible to
transfer the
frequency to the
transmitter
The infra-red interface of the receiver is
not yet ready for transferring the
frequency; the receiver is still in scan
mode
The transmitter is from a different
frequency range
Use a transmitter that matches the
frequency range of the receiver
The transmitter sensitivity is adjusted
too low
The receiver’s AF output level is
adjusted too low
Adjust the transmitter sensitivity correctly
The audio signal has a
high level of
background noise
The transmitter sensitivity is adjusted
too high
The receiver’s AF output level is
adjusted too high
Adjust the transmitter sensitivity correctly
The audio signal is
distorted
The receiver is in standby mode
The display does not
switch on
“Mute” is
permanently
displayed
One of the two receivers is not used or Set the receiver to standby mode
range
If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed
solution(s), please contact your local Sennheiser agent for assistance.
40
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Specifications
Specifications
RF characteristics
Modulation
wideband FM
Frequency ranges
470–560 MHz 518–608 MHz 548–638 MHz
614–704 MHz 678–768 MHz 708–798 MHz
776–866 MHz 814–904 MHz 870–960 MHz
Receiving frequencies
6 frequency banks with up to 60 factory-preset frequencies each,
(per receiver RX 1 or RX 2)
1 frequency bank with up to 60 freely selectable frequencies (tunable in
5-kHz increments)
Switching bandwidth
Frequency stability
Receiver principle
90 MHz
≤ ±2.5 ppm
true diversity
Sensitivity
typ. 1.5 μV at 52 dB(A)rms S/N
(with HDP, peak deviation)
typ. 15 μV at 115 dB(A)rms S/N
Adjacent channel rejection/
spacing
typ. 75 dB/±400 kHz
typ. 80 dB/±800 kHz
Intermodulation attenuation
Blocking
≥ 80 dB
≥ 80 dB
Squelch
13 steps (0 … 30 μV)
2 BNC sockets (50 Ω)
Antenna inputs
Daisy chain outputs
2 BNC sockets (50 Ω)
amplification: 0 dB ±0.5 dB (related to the antenna inputs)
180 MHz typ. bandwidth (range)
AF characteristics
Compander system
AF bandwidth
Sennheiser HiDyn plus™, DSP-emulated
40–20,000 Hz
Latency
≤ 1.9 ms
Nominal/peak deviation
±40 kHz/±56 kHz
Signal-to-noise ratio
(1 mV, peak deviation)
≥ 118 dB(A) at +18 dB /+4 dB (AF out)
u
u
THD (nominal deviation, 1 kHz) ≤ 0.3 %
AF output voltage
(peak deviation, 1 kHz
)
+18 dBu to –10 dBu, adjustable in 1-dB increments (transformer balanced)
1 XLR-3 socket per receiver, 2 XLR-3 sockets per EM 3732 Command receiver
AF
AF output sockets
Headphone output
2 x 100 mW at 32 Ω
10 Ω internal impedance
short-circuit proof
41
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Specifications
Overall device
Ambient temperature
Relative humidity
Power supply
–10 °C to +55 °C
max. 85 %
100–240 V AC, 50/60 Hz
max. 0.4 A
Current consumption
Power consumption
with receiver switched on: max. 20 W (50 VA)
with receiver switched off, booster supply voltage switched on: max. 9.5 W
with receiver and booster supply voltage switched off: max. 4 W
Mains connector
Dimensions W x D x H [mm]
Weight
3-pin, protection class I, as per IEC/EN 60320-1
436 x 215 x 44 (without rack mount “ears”)
approx. 4080 g (incl. rack mount “ears”)
approx. 3600 g (without rack mount “ears”)
Booster supply
12 V DC via antenna socket
max. 200 mA each, short-circuit proof, switchable
Ethernet
IEEE 802.3-2002, shielded RJ 45 socket with optional locking facility
Digital output
AES3-2003, XLR-3, 44.1, 48, 88.2 or 96 kHz SR, 24 bits,
externally synchronizable
Word clock connection
Accepted sampling rates
Word clock input
2 BNC sockets (75 Ω), daisy chain output
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
75 Ω, transformer balanced, AC-coupled
input voltage range 200 mV … 5 Vpp
max. input voltage 15 V (DC + AC)
Word clock output
In compliance with
75 Ω, transformer balanced, AC-coupled
output voltage 2.5 V± 250 mV at 75 Ω source impedance
EMC
Radio
Safety
EN 301489-1/-9
EN 300422-1/-2
EN 60065
47 CFR 15 subpart B
Type approval
Industry Canada RSS 210, IC: 2099A-EM 373x
Certified with Class 222651 and 222681 - Commercial Audio Equip-
ment CAN/CSA 60065-03 incl. AM1, UL Std No. 60065-2006
42
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Accessories/spare parts
Accessories/spare parts
The following accessories are available from your authorized dealer:
Cat. No. Accessory
Cat. No. Accessory
004368 GA 3030 AM antenna mount
502195 A 3700 active broadband antenna
502197 AD 3700 active broadband directional
087969 Antenna daisy chain cable, 50 Ω, BNC, 0.25 m
antennna
087972 Word clock daisy chain cable, 75 Ω, BNC,
502196 AB 3700 antenna booster
0.25 m
500887 A 5000 CP circularly polarized broadband
502432 GZL AES 10 AES3 cable, 10 m, 110 Ω,
antenna, passive
double-shielded
004645 A 1031 broadband remote antenna, passive 002324 GZL 1019-A1 coaxial cable, type RG 58,
BNC to BNC, 1 m
003658 A 2003 broadband directional antenna,
passive
002325 GZL 1019-A5 coaxial cable, type RG 58,
BNC to BNC, 5 m
009423 ASA 3000-EU antenna splitter
009407 ASA 3000-US antenna splitter
009408 ASA 3000-UK antenna splitter
002326 GZL 1019-A10 coaxial cable, type RG 58,
BNC to BNC, 10 m
43
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Manufacturer Declarations
Manufacturer Declarations
Warranty regulations
The guarantee period for this Sennheiser product is 24 months from the date of
purchase. Excluded are accessory items, rechargeable or disposable batteries that
are delivered with the product; due to their characteristics these products have a
shorter service life that is principally dependent on the individual frequency of use.
The guarantee period starts from the date of original purchase. For this reason, we
recommend that the sales receipt be retained as proof of purchase. Without this
proof (which is checked by the responsible Sennheiser service partner) you will not
be reimbursed for any repairs that are carried out.
Depending on our choice, guarantee service comprises, free of charge, the removal
of material and manufacturing defects through repair or replacement of either
individual parts or the entire device. Inappropriate usage (e.g. operating faults,
mechanical damages, incorrect operating voltage), wear and tear, force majeure
and defects which were known at the time of purchase are excluded from
guarantee claims. The guarantee is void if the product is manipulated by non-
authorised persons or repair stations.
In the case of a claim under the terms of this guarantee, send the device, including
accessories and sales receipt, to the responsible service partner. To minimise the
risk of transport damage, we recommend that the original packaging is used.
Your legal rights against the seller, resulting from the contract of sale, are not
affected by this guarantee. The guarantee can be claimed in all countries outside
the U.S. provided that no national law limits our terms of guarantee.
CE Declaration of Conformity
This equipment is in compliance with the essential requirements and other relevant
provisions of Directives 1999/5/EC and 2006/95/EC. The declaration is available
Before putting the device into operation, please observe the respective country-
specific regulations!
Statements regarding FCC and industry Canada
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
This class B digital apparatus complies with the Canadian ICES-003.
Warning: Changes or modifications made to this equipment not expressly
approved by Sennheiser electronic Corp. may void the FCC authorization to operate
this equipment.
This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry
Canada. Operation is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
44
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Sennheiser electronic GmbH & Co. KG
Am Labor 1
30900 Wedemark, Germany
Phone +49 (5130) 600 0
Fax +49 (5130) 600 300
Printed in Germany
Publ. 01/08
516551/A01
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