R
T
elex
Operating Instructions
FMR-500
User Guide
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Section 3 - Detailed Components Description
FMR-500 Receiver Controls, Connectors, and Indicators
8
5
Balanced
Audio
2
1
3
U.S. Patent No. 6,256,484
R
Telex
FMR-500 BAND
12-15V
AC/DC
Antenna
R
A
with FCC Standards
Telex
SCAN TM
Tested to Comply
power
-20 -10 -6 -3
0
+3
+
-
GPA CH
12u 05
EV
CLEAR
CANADA
S.N. 1059
FMR-500
Mic
Line
Line
Level
High
Z
AUDIO
1
3
10 30 100
set
Telex Communications, Inc.
Made in U.S.A.
Figure 1 - FMR-500 Front Panel
Figure 2 - FMR-500 Back Panel
90
Power ON/OFF
Display Control Buttons (Set/Up/Down)
1.
2.
3.
4.
5.
Graphical Display
Power Connector
Balanced
Audio
U.S. Patent No. 6,256,48
R
Telex
FMR-500 BAND
12-15V
AC/DC
Antenna
A
with FCC Standards
+
-
Tested to Comply
Channel Display
Frequency
Battery Strength
Indicator
Diversity Indicator
XLR BalancedMic/Line Level
a.
b.
c.
CANADA
S.N. 1059
Mic
Line
Line
Level
High
Z
Telex Communications, Inc.
Made in U.S.A.
Audio Output Line Level Adjustable
Unbalanced Line Level Audio Output
Connector with Level Adjustment
TNC Antenna Input Connectors
6.
Proper Antenna Orientation
d.
e.
7.
8.
RF Strength of
Signal Indicator
a.
ClearScan for Groups: From the main dis-
play screen, push SET once and the Group
Number will flash. While Group is flashing,
press and hold SET until ClearScan appears,
release the set key. When the scan is com-
pleted, the display will show the group with
the most clear channels and the Channel num-
ber will indicate how many clear channels are
in that group. Use the UP/DOWN keys and to
view other groups and press SET to select a
group. The Group will be set and the Channel
will start to flash. Select a channel manually
or use ClearScan for Channels.
Power Cord Retainer
Audio Level Indicator
Guitar Mode Indicator
f.
g.
Receiver Setup and Operation
Place the receiver and antennas where there is a
clear line of sight to the area where the transmit-
ter will be used. Rotate the antennas to separate
them by 90 degrees.
1.
2. Connect the power supply cord to the receiver.
Plug the power supply into an AC outlet. Turn
the receiver on and confirm that it is ON by
checking the main display screen.
b.
ClearScan for Channels: To scan for the
clearest channel in a group, press and hold set
while the Channel is flashing until ClearScan
appears, release the SET button. When the
scan is complete, the display will show the
clearest available channel. Use UP/DOWN to
scroll through the other available channels
rank from clearest to least clear (but still avail-
able for use, ClearScan will not display any
channel that can't be used). Press SET to se-
lect the channel.
Caution: Please make sure the AC power supply
is the correct voltage for your local requirements
before it is plugged into the wall.
3. Manual Channel Change. Press the SET but-
ton and the Group number will start to flash.
The Up and DOWN buttons allow you to scroll
through the factory set group. When the group
you desire is displayed, press SET to select that
group and the Channel Number will start flash-
ing. Scroll to the desired channel and press SET
to select. The numbers will stop flashing and the
new group and channel are installed.
c.
Auto ClearScan: This function will find the
clearest group and channel with the press of
just one button. With nothing flashing, press
and hold the SET button until ClearScan ap-
pears on the right side of the screen. When the
scan is complete, the receiver will be set to the
clearest channel in the clearest group.
4. Frequency Assignment (Outside of preset
Groups and Channels), press SET and UP at
the same time and the group and channel will go
blank and the Frequency will start flashing. Use
UP/DOWN to scroll in 25 KHz steps to the de-
sired frequency. Press SET and the frequency
will be selected and stop flashing. Press Set and
UP at the same time to return to group and chan-
nel operation. Hint: holding in the Up or Down
key will increase the speed of the scroll. Just re-
lease and press again for fine control.
d.
ClearScan Band: While in the Frequency
Mode, this function will scan the entire band
looking for the clearest frequency, regardless
of groups and channels. In Frequency Mode,
press Set once and the frequency will flash,
press and hold set until ClearScan appears on
the right side of the display. The scan will
continue until you press Set again so you can
scan a location overnight, 24 hrs, a week, or a
few seconds. When you press Set again, the
scan will stop and the clearest frequency will
be displayed. You can scroll through the 8
clearest frequencies using the Up and Down
buttons. Press Set to accept the frequency dis-
played.
5. Advanced ClearScan: This feature automates
the process of finding a clear group of
inter-modulation free channels and the clearest
channels within those groups.
-2-
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NOTE: Groups 9 and above are set up to work Now refer ahead to transmitter setup and return
with the other US frequency band (A and B). If to step 9 when that is completed.
you are using a mix of Band A and Band B, scroll
down to these groups and use the clearest group.
With the transmitter on, speak into the micro-
9.
phone or play the guitar. Turn up the level on
the mixer or amplifier until you are able to hear
the desired signal. If no audio is present, repeat
setup and refer to the troubleshooting section.
6. Change Lock-Out: By pressing and holding the
UP and DOWN arrow keys together for 3 sec-
onds, the SET key is disabled.To reactivate the
SET key, simply press and hold the UP and
DOWN keys again for 3 seconds. This feature
can be useful when the receiver is in a location
where unauthorized personnel have access to
the receiver.
NOTE: If the 1/4 inch output is used, it may be
necessary to adjust the receiver output until the
volume level from the wireless system approxi-
mates the level of an equivalent wired micro-
phone/instrument.
For set up, make sure the mixer or amplifier in-
put used for the FMR-500 is muted or turned
down to a minimum level.
7.
10. Squelch Adjustment - The squelch setting can
be used to maximize range or immunity to
noise. Press and hold Up for 3 seconds. The cur-
rent squelch setting will be displayed. Adjust
the squelch using the UP/DOWN keys. Maxi-
mum squelch (9) maximizes noise immunity but
limits the range. Minimum squelch (1) will maxi-
mize the range but allow more noise to break
through the squelch. Press SET to save the new
squelch setting.
Plug an audio cable (not supplied) into the 3 pin
XLR or 1/4 inch output of the FMR-500.
8.
a. NOTE: The XLR connector is the pre-
ferred connection since the output is bal-
anced and will be more immune to noise
for longer runs of cable although either
can be used with good results. If the 1/4
inch connector is used, adjust the output
level on the back panel to 12 o'clock (mid-
way in the range) to start and adjust later if
necessary.
Receiver Push-Button Reference Sheet
Display
Status Button
Function Activated
Edit Accept
Nothing Flashing
Nothing Flashing
Group Flashing
Group Flashing
Channel Flashing
Nothing Flashing
Nothing Flashing
Edit Lock On
Press and hold SET
Auto ClearScan
n/a n/a
SET
Edit Group -Group will flash
SET
SET
SET
SET
SET
Press and hold SET
SET
ClearScan Group - list clear groups in order
Edit Channel - Channel will flash
ClearScan Channel - list clear channels in order
Edit Squelch Setting
Press and hold SET
Press and hold Up
Press and hold Up & Down Edit Lock - Secure will appear
Press and hold Up & Down Return to Access Mode
n/a
n/a
n/a
n/a
n/a
Power Off
Press and hold SET
Press SET and Up
Press and hold SET
Toggle between Guitar and Voice mode
Toggle to Frequency Mode - Freq will flash
ClearScan Band - Clear Scan will flash
End ClearScan Band after next full scan
Clearest frequencies listed
n/a
Nothing Flashing
Frequency Flashing
SET
n/a SET
ClearScan Band Running Press SET
ClearScan Band Results n/a
n/a
n/a
SET
n/a
Frequency Mode
Nothing Flashing
Press SET and Up
Press and hold Down
Return to Group and Channel Mode
Display Software Revision
n/a
n/a
n/a
-3-
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Rack Mount Installation
The FMR-500 is supplied with rack mounts for sin- Four double mounting of two FMR-500's proceed
gle and double mounting in a standard EIA 19"/ as follows:
483mm equipment rack (see Figure 3). For rack
mounting a single unit, a long (#3) and short (#1) 1. Align the mid brackets (#2) with the holes on
"ear" are used. For dual side-by-side mounting, use
the short (#1) "ears" and the mid brackets (#2) from
two FMR-500's as shown.
the adjacent sides of each unit.
2. Install the previously removed screws. Insert an
additional screw (#4, provided in the parts pack)
into the remaining holes. Tighten all screws se-
curely.
To assemble the rack mount adapters to the
FMR-500 proceed as follows:
1. Remove the front Phillips head screws from 3. Place the two assemblies side-by-side with the
each side of each unit.
mid brackets together. (The left bracket should
fit above the right so that the countersinks are
visible). Install 4 flat head screws (#5, provided
in the parts pack) and tighten them securely.
2. Align the correct rack ear or bracket with the
holes on the side of the unit. Install the previ-
ously removed screws. Insert an additional
screw (#2, provided in the parts pack) into the
remaining hole. Repeat this step for the opposite
side of the unit. Be sure to tighten all screws se-
curely.
1
REMOVE SCREWS
(TYPICAL 4 SIDES)
C
L
R
E
A
S
R
C
A
N
5
p
e
o
w
e
r
s
t
3
C
L
S
R
E
A
R
C
A
N
p
e
o
w
e
r
2
s
t
(TYPICAL BOTH SIDES)
5
1
4
(TYPICAL ALL SIDES)
Figure 3
Rack Mount Installation
Front Mounting Antennas
1. Remove hole plugs from brackets.
3. Attach the supplied extension cables from the
rack connectors to the antenna connections on
the back of the receiver. See Figure 4.
2. Attach the antenna connectors to the brackets.
C
R
L
E
A
R
S
C
A
N
p
o
w
e
r
s
e
t
C
R
L
E
A
R
S
C
A
N
p
o
w
e
r
s
e
t
Figure 4
Front Mounting Antennas
-4-
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Handheld Transmitter HT-500
2
1
3
6
7
5
SET
2
4
755050
1
9
3
8
Figure 5
Handheld Transmitter
Figure 6
Transmitter
HT-500 Controls,
Connectors, and Indicators
5. Channel/Frequency Up Switch
6. Channel/Frequency Down Switch
7. Microphone Gain
1. Main Display - LCD
(Channel, Frequency or Battery Level Indication)
2. Battery Low LED - Lights when battery is low
3. Power On/Off Switch
8. 9V Battery Holder
4. Set Switch
9. Battery Cover - Screw type
Handheld Transmitter Setup
and Operation
1. Insert Battery. Remove the battery compart-
ment cover by unscrewing it completely. Insert a
9V battery, terminal end first into the battery
compartment.
5. Frequency Edit Mode - Press SET from the
frequency display screen to enter frequency edit
mode. Press the Up and Down to adjust fre-
quency in 25 kHz increments. Holding the Up or
Down buttons down will auto step the frequency;
slowly at first, then quickly. You can also enter
frequency edit mode by pressing SET and UP at
the same time from either the Group and Chan-
nel or Battery status display screens. Pressing
SET and UP at the same time from the Fre-
quency display screen will enter Group and
Channel edit mode.
NOTE: The HT-500 unique design allows the
battery to be inserted and used regardless of the
positive and negative terminal position.
2. With battery compartment still open, turn the
unit so you can see the display and the control
panel. Turn the unit on by sliding the power
switch forward to the on position. The battery
low LED will light for a second and the display
will show the Group and Channel numbers.
6. Power Lock Out - Press SET, UP, and DOWN
at the same time and hold 3 seconds to lock the
power switch on. To turn the unit off, place the
power switch in the OFF position and push SET,
UP, or DOWN. To remove the lock, press SET,
UP, and DOWN again at the same time and hold
3 seconds. A one-time only ON-LOCK mode
can also be entered by quickly cycling the
power switch three times.
3. Change the group and channel numbers to
match those displayed on the receiver by press-
ing SET. The Group number will flash and can
be changed with the UP/DOWN keys. Once the
desired group number is showing, press SET to
select and the Channel number will flash. Select
the Channel and press SET again. The flashing
will stop and the channel is now set.
4. Other Screens: Press SET and DOWN at the
same time to display the battery level. Press
SET and DOWN again to display frequency.
Press them one more time to return to Group
and Channel.
7. Set Key Lock-Out, by pressing and holding the
UP and DOWN arrow keys together for 3 sec-
onds, the SET key is disabled. To reactivate the
SET key simply press and hold the UP and
DOWN keys again for 3 seconds.
-5-
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To adjust the transmitter gain, gently insert the
provided screwdriver (or other 3/32 - 2.5 mm
screwdriver) into the adjustment hole above the
display screen. Turn lightly until the screw-
driver tip goes into the adjustment level control
Gently turn counterclockwise until the control
stops (the microphone output is at minimum but
not off). Slowly turn the gain control up (clock-
wise) while speaking/singing into the micro-
phone and audiometer shows peaks around -3
dB.
8. Verify reception. With the transmitter and re-
ceiver on and matching Group and Channel, the
main receiver display should be indicating a RF
signal on the bar graph. Speak into the micro-
phone and the Audio Meter bar graph should in-
dicate audio signal presence. If the level meters
do not show reception, make sure the channels
are matching and refer to the trouble shooting
section.
9. Adjustment of the transmitter audio gain - If
necessary The transmitter audio gain is factory
set at the middle of the range, which should be
suitable for most applications. For loud or soft
speakers/singers, a gain adjustment may be nec-
essary. Have the speaker or singer use the mi-
crophone in a normal performance level voice.
The Audio Meter in the main receiver display
screen should show peaks around the -3dB
level. If the meter peaks all the way to the right
or well below the -3dB level, adjust the trans-
mitter audio gain.
NOTE: Operating with the transmitter audio
gain set as high as possible (without distortion
or peaks all the way to the right end of the me-
ter) will result in the best performance and high-
est signal to noise ratio.
Test Performance. Go back to Section 3. Re-
ceiver Setup and Operation - Step 9 to complete
system set up and test.
10.
5
Bodypack Transmitter - WT-500
1
SET
6
9
R
Telex
WIRELESS
UHF
Figure 8
Control View
755050
GP
CH
5
4
8
Figure 7
Bodypack Transmitter
2
3
Figure 9
Top View
WT-500 Controls, Connectors,
and Indicators
Antenna - flexible 1/4 wave antenna
Display Control Buttons (Set/Up/Down)
Belt Clip (Removable, not shown)
9V Battery Compartment
1.
2.
3.
6.
7.
8.
9.
Power On/Off Switch
Battery Low LED Indicator
Audio Gain Adjustment
TA4 Audio Connector
4.
5.
LCD Display (Channel, Frequency or
Battery Level Indication)
-6-
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Have the speaker or singer use the microphone
in a normal performance level voice. The Audio
Meter in the main receiver display screen should
show peaks around the -3 dB level. If the meter
peaks all the way to the right or well below the
-3 dB level, adjust the transmitter audio gain.
Bodypack Transmitter Setup
and Operation
1. Insert Battery. Pinch the battery door tabs in-
ward and pull the door open. Insert a 9V battery
as indicated by the +/- in the holder.
To adjust the transmitter gain, gently insert the
provided screwdriver (or other screwdriver) into
the adjustment potentiometer. Gently turn coun-
terclockwise until the control stops (the micro-
phone output is at minimum but not off). Slowly
turn the gain control up (clockwise) while
speaking/singing into the microphone or strum-
ming the guitar and the audiometer shows peaks
around -3 dB.
With battery compartment still open, turn the
unit on with Power switch on the top panel. The
battery low LED will light for a second and the
display will show the Group and Channel num-
bers.
2.
3. Change the group and channel numbers to
match those displayed on the receiver by press-
ing SET. The Group number will flash and can
be changed with the UP/DOWN keys. Once the
desired Group number is showing, press SET to
select and the Channel number will flash. Select
the Channel and press SET again, the flashing
will stop and the channel is now set.
NOTE: Operating with the transmitter audio
gain set as high as possible (without distortion
or peaks all the way to the right end of the me-
ter) will result in the best performance and high-
est signal to noise ratio.
4. Set Key Lock-Out. By pressing and holding the
UP and DOWN arrow keys together for 3 sec-
onds, the SET key is disabled. To reactivate the
SET key, simply press and hold the UP and
DOWN keys again for 3 seconds.
Other Screens: Press SET and DOWN at the
same time to display the battery level. Press
SET and DOWN again to display frequency.
Press them one more time to return to Group
and Channel.
5. Verify reception. With the transmitter and re-
ceiver on and matching Group and Channel, the
main receiver display should be indicating a RF
signal on the bar graph. If the level meter does
not show reception, make sure the channels are
matching and refer to the trouble shooting sec-
tion.
8. Frequency Edit Mode - Press SET from the
frequency display screen to enter frequency edit
mode. Press the Up and Down to adjust fre-
quency in 25 kHz increments. Holding the Up or
Down buttons down will auto step the frequency;
slowly at first, then quickly. You can also enter
frequency edit mode by pressing SET and UP at
the same time from either the Group and Chan-
nel or Battery status display screens. Pressing
SET and UP at the same time from the Fre-
quency display screen will enter Group and
Channel edit mode.
6. Attach the Microphone or Guitar.
Microphone: Plug the microphone cable into
the top panel of the WT-500. Speak into the mi-
crophone and the Audio Meter bar graph should
indicate audio signal presence.
9. Power Lock Out - Press and hold SET, UP, and
DOWN at the same time and hold for 3 seconds
to lock the power switch on. To turn the unit off,
place the power switch in the OFF position and
push SET, UP, or DOWN. To remove the lock,
press SET, UP, and DOWN again at the same
time and hold for 3 seconds. A one-time only
ON-Lock mode can also be entered by quickly
cycling the power switch three times.
Guitar: Turn off the bodypack, press and hold
SET while you turn the bodypack on. A guitar
symbol will appear in the display to indicate in-
strument mode. Repeat the process holding SET
on the receiver as it is powered up. Plug in the
MAC-G3 guitar cable. Strum the guitar and the
Audio Meter bar graph on the receiver should
indicate audio signal presence.
7. Adjustment of the Transmitter Audio Gain -
(if necessary). The transmitter audio gain is fac-
tory set at the middle of the range, which should
be suitable for most applications. For loud or
soft speakers/singers, a gain adjustment may be
necessary.
10. Test Performance - Go back to Section 3 - Re-
ceiver Setup & Operation, Step 9 to complete sys-
tem set up and test.
APPROVAL INFORMATION
The Electro-Voice/Telex Transmitters are Type Accepted under United States Federal Communications
Commission CFR 47, Part 74 and Industry Canada RSS123.
The Electro-Voice/Telex Receiver is approved under United States Federal Communications Commis-
sion CFR 47, Part 15 and Industry Canada RSS210.
Licensing of Electro-Voice/Telex equipment is the users responsibility and Licensability depends upon
the users classification, users application and frequency selected. Electro-Voice/Telex strongly urges
the user to contact the appropriate telecommunications authority for any desired clarification.
CAUTION: Any changes or modifications made to the above equipment could void the users authority to
operate the equipment.
-7-
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Section 4 - Receiver Display Screens and Functions
Main Operating Screen
4
7
5
2
-20 -10 -5
0
+3
AF
T
M
1
3
CLEARSCAN
8
R
F
1
3
10 30 100
9
6
Figure 10
Main Operating Screen
Display:
Controls:
1. Press and hold SET for 3 seconds starts Auto-
1. Group Number· · · · · · · · · · · · · · · 10 (factory set)
2. Channel Number· · · · · · · · · · · · · · · · · · · 01 to 10
3. Frequency · · · · · · · · · · · Displayed in MegaHertz
4. Battery Status · · · · · · · · · · · · · · · · 100 to 0 Pct in
25 Pct steps/Flash if low
ClearScan™
2. Press SET once, Group starts flashing, adjust with
UP and DOWN
2.a With Group flashing, press and hold SET for 3
seconds to start Group Scan
5. Audio VU Meter · · · · · · · · · · -30 VU to + 3 VU
6. RF Signal Strength · · · · · · · · · · · 1 µV to 100 µV
7. Antenna Diversity Status · · · left or right antenna
8. ClearScan · · · · · · · · Indicates Scan is in progress
9. Guitar Symbol · · · · · · Indicates Instrument Mode
3. Press SET twice, Channel starts flashing, adjust
with UP and DOWN
3.a With Channel flashing, press and hold SET for
3 seconds to start Channel Scan
4. Press SET and UP at the same time to enter Fre-
quency Mode
5. Press and hold UP for 3 seconds to adjust Squelch
6. Press and hold SET during power up to enter In-
strument Mode
7. [UP] + [DOWN] for 3 seconds Sets/Resets Edit
Lockout
Squelch Adjustment Screen
-20 -10 -5
0
+3
AF
R
F
1
3
10 30 100
Figure 11
Squelch Adjustment Screen
Display:
Controls:
1. [UP] + [DOWN] adjust the squelch level
1. Squelch Level · · · · · · · · · · · · · · · · · 1-10
2. SET saves the squelch level shown and returns
you to the main screen
Transmitter Display and Controls
Display:
1. Group and Channel
2. Battery Level in Percentage
3. Frequency
Controls:
1. Press SET once, GP will flash, use UP and
DOWN to adjust
2. Press SET again to accept GP, CH will flash, adjust
with UP/DOWN
3. Press SET again to accept CH and channel
will be installed
4. Press SET and DOWN at the same time to change
display mode
5. Press SET and UP to enter Frequency Set Mode
Figure 12
Transmitter Display and Controls
6. Press SET and DOWN to return to the
Group/Channel Mode
7. Press and hold UP and DOWN for 3 seconds
to lock out SET
8. Press and hold UP and DOWN again to activate SET
9. Press and hold UP, DOWN, and SET
to lock power (see Section 4)
10. Press and hold UP, DOWN, and SET to unlock power
-8-
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Transmitter On/Off Lock-Out
There are two On/Off lockout modes available, One
Time and Everytime.
Once the working Group has been established,
leave the first transmitter on, set the next receiver
Group to the working Group and run ClearScan for
Channels. This will provide the next clearest chan-
nel in that group. Set the transmitter to match, leave
it on and repeat until all the systems are set up. If
you run out of clear channels in one group but need
to set up more systems, contact your dealer or Telex
for assistance in choosing additional frequencies.
One Time: Cycle the power switch 3 times in under
3 seconds and On-Loc will be displayed for a sec-
ond and then return to normal operation. The power
switch alone will no longer turn the unit off. To turn
the unit off, put the power switch in the off position
(On-Loc will be displayed) open the battery door
and press [Set], [Up], or [Down] and the unit will
power down. The next time the unit is powered on,
the power switch will operate normally.
Potential Sources of Interference
There are many potential sources of interference for
your wireless system. Any electronic product
that contains digital circuitry including digi-
tal signal processors (reverb/multi-effects
units), electronic keyboards, digital lighting control-
lers, CD and DVD players, and computers, all emit
RF energy that can adversely affect the performance
of your wireless system. It is always best to place
the receiver as far away as possible from these de-
vices to minimize potential problems.
Everytime Use: With the unit on and operating in
the normal mode, press and hold [Set], [Up], and
[Down] for 3 seconds. On-Loc will be displayed
and the power switch alone will no longer turn the
unit off. To turn the unit off, put the power switch in
the off position, (On-Loc will be displayed), open
the battery door and press [Set], [Up], or [Down]
and the unit will power down. The next time the
unit is powered on, the On-loc function will still be
on. To enable the power switch, press and hold
[Set], [Up], and [Down] for 3 seconds (On-Off will
be displayed).
Analog and Digital Television stations can also in-
terfere with your wireless system. The FMR-500 is
designed to operate over 28 MHz of RF bandwidth,
which covers six TV channels. The factory presets
on the FMR-500 are optimized for conditions where
one, two, or possibly three of the six stations are
covered in your area. If four or more of the six sta-
tions are used in your area, it will severely limit the
number of systems that will operate together and
you should be using a different band.
Guidelines and Recommendations
for Best Performance
Compatibility
The transmitter and receiver must be of the same
frequency band and set to the same group and chan-
nel in order to work together. The FMR-500 is
available in two frequency bands, A and B. The
band information is available in the Group/Channel
edit screen on the receiver, the bottom label on the
handheld transmitter, and on the back panel label on
the bodypack.
Battery Recommendations
Fresh 9-volt alkaline batteries form a quality manu-
facturer will yield the best performance from your
transmitters. Rechargeable 8.4-volt Ni-Cad batteries
can be used but will result in much shorter opera-
tion time.
Using Multiple Wireless Systems
When the transmitters are turned on, the red battery
LED will flash once if the battery is good. If the
light does not light or stays lit continuously, the bat-
tery is weak or dead. If the light comes on during
use, the battery is weakening and should be re-
placed as soon as possible. If sound quality de-
grades during use, it may be the result of a
weakening battery.
If two or more FMR-500 systems and/or other
UHF/VHF wireless systems are being used in the
same location, proper frequency coordination is
necessary to avoid interference. All channels in the
FMR-500 factory set groups are designed to work
together, so if channels from just one group are used
no further coordination is required. Contact your
dealer or Telex for assistance if you are planning
more systems or using the FMR-500 with other
wireless equipment.
Caution: The battery level indicators, on the
transmitters and receiver displays, are based on
the use of alkaline batteries. Use of other battery
types will result in false readings on these indica-
tors although the battery low LED on the trans-
mitters will operate normally.
IMPORTANT NOTE: Always use the
smallest preset group that meets your
needs. For instance, if you want to set up
6 units, use one of the groups of 8 fre-
quencies. The smaller the preset group,
the more compatible the frequencies are.
Receiver and Antenna Placement
Do not place the receiver near a large metal object
or surface. Locate the receiver as close as possible
to the area where the transmitter will be used. Ide-
ally, position the receiver/antennas within sight of
the transmitter. When using multiple systems, do
not allow antennas to cross or touch each other. For
best results with multiple receivers, use a UAD-2
antenna splitter. (See Section 7).
Multiple Systems
and Advanced ClearScan
Because all of the channels in the factory set groups
are compatible, Advanced ClearScan can be used to
set up multiple systems quickly and with confi-
dence. When setting up more than one system, set
up the first system using the Auto-ClearScanTM
function.
-9-
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Section 5 - Trouble Shooting Guide
Possible Causes
Solutions
Problem
Receiver is off
Make sure that the power
supply is properly connected
and the on/off button is in
the on position
No audio and no display on
the receiver
Transmitter is off
Turn on transmitter power
switch
No audio and no RF signal
indicator on the receiver dis-
play
Transmitter is on a different
channel
Match the transmitter group
and channel to the one dis-
played on the receiver
No (or dead) battery in trans-
mitter
Insert fresh battery in trans-
mitter
Faulty battery contacts
Clean and or bend contact
Microphone not connected
Check the TA4F connector
on the bodypack or the de-
tachable microphone element
connection on the handheld
No Audio with good RF sig-
nal indicator but no (or low)
Audio indicator on the re-
ceiver display
Low gain setting on the
transmitter
Increase the transmitter gain
Receiver audio output cable
is damaged or disconnected
Connect, repair or replace
cable
No (or low) Audio with good
RF signal and Audio indica-
tors on receiver display
Gain not sufficient on
mixer/preamp/amp input or it
is muted
Increase gain on mixer or
un-mute the input
Receiver output too low
(1/4" output)
Increase the audio output
setting
Transmitter audio gain
too high
Decrease the transmitter gain
setting
Distorted audio signal
Receiver output too high
(1/4" output)
Decrease the receiver output
setting
Battery level low in
transmitter
Insert fresh battery in
transmitter
Another FMR-500 system in
the installation is on the
same channel or the signals
are mixing
Make sure all the channels in
use are from the same group.
Use ClearScan to select the
clearest group. If more chan-
nels are needed call Telex at
800-392-3497 for coordina-
tion help
Interference
Another wireless product in
the area is on the same fre-
quency or the signals are
mixing
Use ClearScan to change the
operating frequency. If prob-
lems persist, call Telex at
800-392-3497 for coordina-
tion help
-10-
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Trouble Shooting Guide (continued)
Possible Causes
Solutions
Problem
Receiver is too close to digi-
tal signal processor or similar
device
Move the receiver to a
different location
Interference (continued)
Strong electromagnetic field
from stage lighting or other
source near the transmitter or
receiver, which may be pro-
ducing RF noise at or near
the operating frequency
Use ClearScan to change the
operating frequency. Repair
or remove the source of in-
terference. Move the receiver
to a different location
RF reflective metal obstacles
between the transmitter and
receiver
Move the obstacles, or repo-
sition the receiver/antennas
Short range or drop-outs
Poorly oriented beltpack
antenna
Check the antenna connec-
tion and re-orient the
bodypack so the antenna is
vertical (up and down) and
facing the receiver, if possi-
ble
Faulty receiving antenna
system
Check all antenna connec-
tions and reposition to be in
line-of-sight with the trans-
mitter
Lock-out feature is enabled
On/Off lock-out is engaged
Disable lock out
(see pages 3 and 9)
Can't change settings on
receiver or transmitter
Put the on/off switch in the
off position and press one of
the programming buttons
(see page 9)
Bodypack or Handheld
transmitter will not turn off,
display says On-Loc
-11-
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Section 6 - Technical Specifications
FMR-500 Receiver
Specifications
Overall
Receiver Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synthesized PLL
Frequency Range (RF) . . . . . . . . . . . . . . . . . . . . . A Band 648 - 676 MHz (TV Channels 43 - 48)
B Band 696 - 724 MHz (TV Channels 54 - 56)
Number of Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1122 possible frequencies
Programmable in 25 kHz steps
Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 40 kHz
Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Digital Posi -PhaseTM True Diversity
RF Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1.0 µV for 12 dB SINAD
Image Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >60 dB
Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tone Code plus Amplitude
Ultimate Quieting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >100 dB
FCC Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approved under Part 15
Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15V AC/DC, 300mA
Operating Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7° to 49° C (20° to 120° F)
Receiver Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.72 in. H x 7.50 in. W x 5.9 in. D
43.69 mm H x 190.50 mm W x 150 mm D
Audio Parameters
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 15 kHz +/- 2dB
Balanced Output (typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (max @ 40 kHz deviation)
330mV RMS 100K OHM Load, Mic Position
10mV to 2V RMS 100K OHM Load, Line Position
Unbalanced Output . . . . . . . . . . . . . . . . . . . . . . adjustable 10 mV to 1V RMS, 100K OHM Load
Distortion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1.0%, 0.5% typical (ref 1kHz, 40kHz deviation)
Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >100 dB A Weighted
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >100 dB
Transmitters WT-500 and HT-500
Radiated Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mW Typical
Microphone Head ElectroVoice 767a . . . . . . . . . . . . . N/D 767a supercardioid N/DYM dynamic
Microphone Head ElectroVoice RE410 . . . . . . . . . . . . . . . . . . . . . . . . RE410 cardioid condenser
Standard Lavalier Microphone. . . . . . . . . . . . . . . . . . . . . ELM-22 Omni-Dierctional Condenser
TA4F Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin 1: Ground; Pin 2 Mic Input;
Pin 3: +5V bias; Pin 4: +5V bias
through a 3kW resistor
Audio Gain Adjustment Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 dB WT-500
26 dB HT-500
Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Volt Alkaline Battery
Battery Life (Typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >8 hours with 9-Volt Alkaline Typical
Bodypack Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flexible external 1/4 wave
Handheld Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internal 1/2 wave
Dimensions (Handheld) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.0 cm (9.4 in.) Long
Dimensions (bodypack) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8 in. H x 2.38 in. W x 0.92 in. D
96.5 mm H x 60.5 mm W x 23.4 mm D
-12-
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Section 7 - Accessories and Parts
MODEL No.
WLM-50
UML21
Order No.
64277000
ULM21
Omnidirectional Lapel Microphone
Unidirectional Lapel Microphone
Premium Omnidirectional Lapel Microphone
ELM-22
70925006
Premium Lapel/Instrument
Unidirectional Microphone
ELM-33
HM2
70926001
HM2
Presenter's Headworn Microphone
Singer's Headworn Microphone
Hard Shell, Foam lined Road Case
Foam Windscreen for Handheld
Handheld Transmitter Color Kit
Bodypack Pouch
HM7
HM7
RC-RE2
379-1
7185800
3792031
7185700
879553
879706
71081001
71081004
HHCK
WP-1000
MAC-G3
RMS
Guitar Cord
Single Receiver Rack Mount Kit
Single Rack Mount Kit with front
mount antenna cables
RMS-TNC
Double Rack Mount Kit
RM-D
71081002
878978
Front Mount Antenna Cables (4)
FMC-K
1/4 Wave Rx Antenna
600-746 MHz (A/B Bands)
ANU-14
FA-500
879010
860031
1/2 Wave Rx Antenna
(680-870 MHz)
1/2 Wave Antenna Mounting
Bracket with 10' of Coax
AB-2
71138000
71253000
Antenna/Pwr Distribution
(600-780 MHz) (A/B Bands)
UAD-2
Termination Plug for UAD-2
TP-2
650095
Directional Rx Antenna
(450-900 MHz) (A/B Bands)
ALP-450
71147000
Low Loss Coaxial Antenna Cable
(25, 50, 75, 100 ft. with TNC Connectors)
CXU-25
CXU-50
CXU-75
CXU-100
71151025
71151050
71151075
71151100
-13-
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Section 8 - Factory Service/Warranty (Limited)
FACTORY SERVICE (North America)
If factory service is required, ship the unit prepaid in its original carton to:
TELEX COMMUNICATIONS, INC.
Audio Service
8601 East Cornhusker Highway,
Lincoln, Nebraska 68507-9702 U.S.A.
Phone: (402) 467-5321 or 800-553-5992
Fax: 402-467-3279
Enclose a note describing the problem along with any other pertinent information and how to con-
tact you.
Warranty (Limited)
Telex products are guaranteed against malfunction due to defects in materials or workmanship for a
specific period, as noted in the individual product-line statements(s) below, or in the individual
product data sheet or owner's manual, beginning with the date of original purchase. If such malfunc-
tion occurs during the specified period, the product will be repaired or replaced (at our option) with-
out charge. The product will be returned to the customer prepaid via UPS Ground.
Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appear-
ance; (b) certain specific described in the individual product-line statement(s) below, or in the indi-
vidual product data sheet or owner's manual; (c) malfunction resulting from use or operation of the
product other than as specified in the product data sheet or owner's manual; (d) malfunction result-
ing from misuse or abuse of the product; or (e) malfunction occurring at any time after repairs have
been made to the product by anyone other than Telex or any of its authorized service representatives.
Obtaining Warranty Service: To obtain warranty service, the customer must deliver the product,
prepaid, to Telex or any of its authorized service representatives together with proof of purchase of
the product in the form of a bill of sale or receipted invoice. A list of authorized service representa-
tives is available from Telex.
Incidental and Consequential Damages Excluded: Product repair or replacement and return to the
customer are the only remedies provided to the customer. Telex shall not be liable for any incidental
or consequential damages including, without limitation, injury to persons or property or loss of use.
Incidental and Consequential Damages Excluded: Product repair or replacement and return to the
customer are the only remedies provided to the customer. Telex shall not be liable for any incidental
or consequential damages including, without limitation, injury to persons or property or loss of use.
Other Rights (United States Only): This warranty gives you specific legal rights and you may also
have other rights, which vary from state to state.
Telex Wireless systems are guaranteed against malfunction due to defects in materials or workman-
ship for a period of three (3) years from the date of original purchase. The Limited Warranty does
not extend to cables or cable connectors. Additional details are included in the Uniform Limited
Warranty Statement. Technical Assistance; 800-392-2497 (U.S. and Canada only)
TELEX COMMUNICATIONS, INC. 12000 Portland Ave. South, Burnsville, MN 55337
PN 803666 Rev B
Sept 2003
Made in U.S.A.
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