Telex RadioCom BTR-700 User manual

Telex
Operating Instructions
RadioCom™
BTR-700, TR-700
Professional
Wireless
Intercom System
0891
0885

Thank you for choosing RadioCom™
Telex Communications would like to take this opportunity to thank you for choosing the RadioCom™BTR-700
Professional Wireless Intercom System. Many of the features in this product are the result of years of develop--
ment work with many of the features developed from customer feedback. We hope that your experience with this
product is a pleasant one and hope to provide you with a continuing line of RadioCom™products well into the
future. In order to get the most out of your new wireless intercom system, please take a few moments to look
through this booklet before using the product for the first time.
-Telex Communications, Inc.

Table of Contents
Introduction ..........................................................................1-1
General Description ..........................................................................1-1
System Features .............................................................................1-1
BTR-700 Block Diagram......................................................................1-2
BTR-700 Base Station ..................................................................2-1
Controls and Connections - Front Panel ..........................................................2-1
Controls and Connections - Rear Panel ...........................................................2-2
BTR-700 Specifications.......................................................................2-3
TR-700 Beltpack.......................................................................3-1
Controls and Connections - Top Panel............................................................3-1
Controls and Connections - Rear Panel ...........................................................3-2
TR-700 Specifications ........................................................................3-3
Initial Equipment Set-Up ...............................................................4-1
Unpacking .................................................................................4-1
Antenna Connections.........................................................................4-2
Antenna Polarization .........................................................................4-2
Distance Between Antennas ...................................................................4-2
Antenna Placement ..........................................................................4-2
Improving Reception/Increasing Range ..........................................................4-4
Base Station Set-Up .........................................................................4-5
Location ...............................................................................4-5
Power Connection........................................................................4-5
Transmit Switches........................................................................4-5
Intercom Switch .........................................................................4-6
Intercom Interface........................................................................4-6
Auxiliary Input/Output ....................................................................4-7
Beltpack Set-Up ............................................................................4-8
Battery Installation .......................................................................4-8
Antenna Connection ......................................................................4-9
Transmit Mode ..........................................................................4-9
Headset Connection ......................................................................4-9
Pre-Walk-Thru Checklist ...............................................................5-1
System Operation......................................................................6-1
Frequency Plan Overview .....................................................................6-1
Factory-Defined Groups ......................................................................6-1
User-Programmable Groups ...................................................................6-1
System Quick Start ..........................................................................6-1
Base Station Operation ......................................................................6-2
Power .................................................................................6-2
Local Headset ...........................................................................6-2
Portable Station Connect ..................................................................6-2
Intercom ...............................................................................6-2
Auxiliary...............................................................................6-2
Display Contrast .........................................................................6-3
BTR-700 Menu Structure.................................................................6-4
Main Screen Flowchart .................................................................6-4
Power-Up Screen ......................................................................6-5
Operating Screen ......................................................................6-5
Beltpack Activity Code Definitions........................................................6-5
Group/Channel Select ..................................................................6-6
Group/Frequency Select.................................................................6-7
Frequency Edit .......................................................................6-8
Clear Scan ...........................................................................6-9
Special Key Sequences ................................................................6-10
Lockout .........................................................................6-10
Copy ...........................................................................6-10
1st Use Default ...................................................................6-10
Factory Default ...................................................................6-10
-i-

Table of Contents (continued)
Beltpack Operation ........................................................................6-11
Power/Local Headset Volume..............................................................6-11
Battery Check ..........................................................................6-11
Talk Button ............................................................................6-11
Microphone Gain .......................................................................6-11
Beltpack Menu Structure ................................................................6-12
Power-Up Screens ....................................................................6-13
Group/Channel Screen.................................................................6-14
Transmit Screen ......................................................................6-15
Receive Screen.......................................................................6-16
ClearScan™ .........................................................................6-17
Talk Button Latch on/Latch off ..........................................................6-18
Special Key Sequences ................................................................6-18
Lockout .........................................................................6-18
1st Use Default ...................................................................6-18
Factory Default ...................................................................6-18
System Walk-Thru .....................................................................7-1
Trouble Shooting ......................................................................8-1
Tech Tips .............................................................................9-1
Frequency Interaction ........................................................................9-1
Microphone Gain Adjustment ..................................................................9-1
Battery Information ...................................................................10-1
Intercom System Specifications..........................................................11-1
Accessories and Replacement Parts ......................................................12-1
Software License......................................................................13-1
Certification Information ..............................................................14-1
Declaration of Conformity .............................................................14-3
-ii-

1-1
Introduction
General Description
The Telex RadioCom™BTR-700 UHF Synthesized Wireless
intercom systems offer the ultimate in reliable, high perfor--
mance, high fidelity full duplex communications.
The BTR-700 system includes the BTR-700 frequency agile
base station, working with up to four TR-700 frequency agile
beltpacks. The BTR-700 base station provides full duplex
communications with the beltpacks.
The BTR-700 system is perfectly suited for stand-alone opera--
tion and also can interface with Audiocom® (Telex), RTS®
TW, Clear-Com® as well as RTS Matrix systems and other 4
wire communications systems. In addition to the external in--
tercom systems interfaces listed above, the system provides
connections for auxiliary balanced audio input and output.
The RadioCom™BTR series has been designed for reliable,
efficient operation. Operating in the 518 to 868 MHz range,
the units operate reliably at line-of-sight distances of 1,000
feet. With available antenna systems from Telex, the effective
operating range can be extended. The high efficiency
beltpacks provide 12-14 hours of uninterrupted operation us--
ing standard alkaline batteries.
System Features
•Frequency agile base station and beltpacks. No external
computer/device required to select frequencies.
•Backlit base station LCD allows the user to easily monitor
the beltpack’s status as well as change base station fre-
quencies.
•ClearScan™ function on base station and beltpack to au-
tomatically find the best channels on which to operate.
•Full duplex (simultaneous talk and listen) operation.
•Compatible with Audiocom® (Telex), RTS TW, RTS Ma-
trix, Clear-Com®, and other wired intercom types.
•Beltpack units contained in a weather and shock resistant
die cast magnesium case.
•Convenient IEC power connector on the base station so
the unit can plug directly to outlets. No in-line or wall
plug power supply.
•Base station comes with rack ears for easy rack mounting.
•Beltpack batteries last up to 12-14 hours when using stan-
dard AA alkaline batteries.
RTS® and Audiocom® are registered trademarks of Telex Communications, Inc.
Clear-Com® is a registered trademark of Clear-Com Intercom Systems, Inc.
Section
1

1-2
PORTABLE
STATION 1
CONNECT
RECEIVE
1
LOGIC
PORTABLE
STATION 2
CONNECT
LOGIC
RECEIVE
2
PORTABLE
STATION 3
CONNECT
LOGIC
RECEIVE
3
PORTABLE
STATION 4
CONNECT
RECEIVE
4
LOGIC
LOGIC
I/C
T
E
L
E X
R
T
S
C
L
E
A R C
O
M
AUXILIARY
AUDIO
INPUT
XLR
FEMALE
ON/OFF
ON/O.M.
IN
INTERCOM
OUT
2 WIRE
INTERCOM
IN
RJ11
STYLE
4 WIRE
4 WIRE 2 WIRE
MALE FEMALE
XLR
SELECT
LOGIC
INTERCOM
AUXILIARY
AUDIO
OUTPUT
XLR
MALE
OUT
TRANSMIT
MIC
GAIN
XLR
HEADSET
14
23
LOGIC
TALK
TALK
VOLUME
margaiDkcolB007-RTB

BTR-700 Base Station
Controls and Connections - Front Panel
1. Power switch.
2. [Menu] and [Set] buttons – Used to select menus and set
options on the LCD.
3. Backlit Graphics LCD (Liquid Crystal Display).
4. [Up] and [Down] buttons – Used to select base station
options on the LCD.
5. Portable Station Connect – Buttons used to enable or
disable the respective receiver’s audio. GREEN LED =
Audio enabled, LED OFF = Audio disabled.
6. Intercom Controls - Wired intercom interface controls.
Audio input and output level controls. 2-wire or 4-wire se-
lect button with green LED indicator lights. Selected LED
will change to RED if the input levels are too high.
7. Auxiliary Controls - Wired auxiliary interface controls.
Audio input and output level controls. GREEN LED =
Aux. input enabled. LED will change to RED if the input
levels are too high.
8. Headset Volume – Controls the volume to the headset
connected to #12.
9. Talk/Overmod Light – LED is green when talk button
#11 is active. A normal mic. gain setting will cause the
LED to flash red on the loudest speech levels. If the gain
is too high, the LED will be red at normal speech volumes.
10.Microphone Gain – Adjusts the headset’s microphone
gain. Adjusts so that the overmod light #9 flashes from
green to red on loudest speech.
11. Talk Button – Press to enable the audio path from the local
headset. LED #9 will turn green when enabled. A quick
press and release latches button on. If the talk function is
latched on, pressing the talk button again will turn it off.
12. Local Headset Connector – Male XLR connector for
Telex units, Female XLR connector for RTS units. A dy-
namic or electret headset microphone is automatically de-
tected.
Figure 2
Local Headset Wiring
2-1
MIC GAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2 WIRE
4 WIRE
SELECT
IN
OUT
PORTABLE STATION CONNECT
1 2 34
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY
12345678910
11 12
INTERCOM
BTR-700
TALK
Figure 1
BTR-700 - Front Panel
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(3) Headphone
High (+)
(4) Headphone
Low (-)
Telex Units
(4) Headphone
Low (-)
(3) Headphone
High (+)
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
PUSH
RTS Units
Section
2
(5) (4) Headphone
Low (-)
(3) Headphone
High (+)
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
PUSH

Controls and Connections - Rear Panel
1. Receive Antenna - Female “TNC” Connector. Color band
on antenna must match color dot on base station.
2. Transmit Power Switch – HIGH = Transmitter at full
power. NORMAL = Transmitter 10dB below full power.
3. Transmit ON/OFF Switch – Turns the transmitter on or off.
4. I/C Select Switch – Set to the appropriate 2-wire intercom
type being interfaced to the unit. Set to either Telex, RTS
or Clear-Com®.
5. Intercom – Interface to wired intercom system .
2-Wire – Male and Female 3 pin XLR connectors
wired in parallel. The connectors are switched to the
appropriate intercom configuration via the I/C Select
Switch.
4-Wire – An RJ-11 type jack compatible with “Ma-
trix” type intercom systems.
6. Auxiliary Input/Output – One 3 pin female XLR input
connector and one 3 pin male XLR output connector.
7. Power – IEC receptacle. Accepts 100 – 240VAC, 50 – 60 Hz
8. Transmit Antenna - Female “TNC” Connector. Color
band on antenna must match color dot on base station.
2-2
RECEIVE
HIGH
ON
NORM
OFF
TRANSMIT
POWER
I/C
TELEX CLEARCOM
RTS
BTR-700
FCC ID: B5DM516
CANADA 1321231218A
INTERCOM
2 WIRE
L
O
O
P
T
H
R
U
4 WIRE
AUXILIARY AUDIO
INPUT OUTPUT POWER
100-240 VAC 50-60 Hz
TRANSMIT
PUSHPUSH
1
2345
67
8
TELEX COMMUNICATIONS INC.
MADE IN USA
Figure 3
BTR-700 - Rear Panel
Warning! Excessive current through the
loop thru ports will damage the intercom!
Do not exceed 200 mA current in the 2
wire loop thru curcuits.

2-3
BTR-700
Specifications
Overall
RF Frequency Range.........518 - 608 MHz, 614 - 740 MHz, 796 - 868 MHz in 18 MHz TX and RX bands
Power Requirements .......................................100-240 VAC, 50-60 Hz, IEC receptacle
Temperature Range ..............................................-4° F to 130° F (-20° C to 55° C)
Dimensions .............................19.00” W x 1.72” H x 14.00” D (48.3 cm x 4.4 cm x 35.6 cm)
Weight ...................................................................7 lbs 2 oz (3.24 kg)
TX Antenna ............................................1/2 Wave (supplied), TNC Male Connector
RX Antenna ............................................1/2 Wave (supplied), TNC Male Connector
FCC ID: .........................................................................B5DM516
Frequency Response..............................................................300Hz-8kHz
Four Wire Input ................................................Level Adjustable (2 Vrms typical)
Four Wire Output ...............................................Level Adjustable (2 Vrms typical)
Telex Intercom....................Input/Output Level Adjustable (1 Vrms typical), Line impedance 300W
RTS Intercom .................Input/Output Level Adjustable (0.775 Vrms typical), Line Impedance 200W
ClearCom® Intercom.............. Input/Output Level Adjustable (1 Vrms typical), Line Impedance 200W
Auxiliary Input ......................................................Adjustable (2 Vrms typical)
Auxiliary Output ............................................Adjustable (2 Vrms typical into 600W)
Microphone input sensitivity .............................................................9mV
Local Headset Output ......................................40mW output into 600W(1% Distortion)
Transmitter
Type ......................................................Synthesized Transmitter, 712 channels
Transmit Power ..............................................50mW Max. (High), 5 mW (Normal)
Modulation Type ........................................................................FM
Deviation .............................................................40 kHz (35 kHz Europe)
RF Frequency Stability................................................................0.005%
Modulation Limiter ................................................Peak-Responding Compressor
Radiated Harmonics & Spurious ........................................Exceeds FCC specifications
Receiver
Type..........Dual Conversion Superheterodyne, four Independent Synthesized IFs, FM, 712 channels each
RF Sensitivity........................................................<0.8 µV for 12 dB SINAD
Squelch Threshold ..............................................................20 dB SINAD
IF Selectivity.................................................................3 dB at 230 kHz
Image Rejection ...............................................................70 dB or better
Squelch Quieting......................................................................90 dB
RF Frequency Stability................................................................0.005%
Distortion ...............................................................<1% at full deviation

2-4 Blank

TR-700 Beltpack
Controls and Connections - Top Panel
Figure 4
TR-700 Top Panel
1. On/Off & Volume Control – Turns the beltpack power
on and controls headset volume.
2. Bat/Overmod Light – Light will flash once when unit is
turned on if the battery is good. If the light stays on, bat-
tery is low. If the light does not flash, battery is dead. A
normal microphone gain setting will cause the LED to
flash at the beginning of most words at normal speech
levels. If the gain is too large, the LED will be red during
the complete word at normal speech levels.
3. Talk Light – LED is on when the talk button is active.
4. Talk button – Press to enable the audio path from the lo-
cal headset microphone. The “TALK” LED, #3, will turn
red when enabled. A quick press and release latches the
talk function, unless latching has been disabled in soft-
ware. Holding the button for over ½ a second will cause
the audio path to be enabled only for as long as the button
is held. If the talk function is latched on, pressing the talk
button again will turn it off.
3-1
VOL
OFF
TelexR
BAT/OM TALK
TALK
12
4
3
Section
3

Controls and Connections - Rear Panel
Figure 5
TR-700 Rear Panel/Connector/Antennas
1. [MENU] and [SET] buttons – Used to select menus and
set options on the LCD.
2. LCD (Liquid Crystal Display)
3. [UP] and [DOWN] buttons – Used to select beltpack op-
tions on the LCD.
4. Microphone Gain – Adjusts the headset’s microphone
gain. Adjust so that the BAT/OM LED will flash at the be-
ginning of most words at normal speech levels
5. Push-to-Talk/Push-to-Transmit Switch –
Push-to-Talk (PT TALK) – The transmitter is always
on. No audio is sent unless the talk button is pressed.
Recommended position.
Push-to-Transmit (PT TX) - The transmitter and audio
paths are off except when the talk button is pressed.
6. Headset Connector – Male XLR connector for Telex
units, Female XLR connector for RTS units. A dynamic or
electret headset microphone is automatically detected by
the beltpack and a bias voltage supplied if needed.
Figure 6
Headset Jack Wiring
7. Battery Latch – Press down to enable the battery pack to
be released. While the latch is held down, slide the battery
pack about 1/8 inch back, toward the latch, until it stops.
Then lift out.
8. Receive Antenna – Screw type ¼ wave replaceable an-
tenna. The receiver antenna is always the longer antenna.
Color dot on the screw end of the antenna must match
color dot on antenna receptacle.
9. Transmit Antenna – Screw type ¼ wave replaceable an-
tenna. Color dot on the screw end of the antenna must
match color dot on antenna receptacle.
3-2
(1) Microphone
Shield (-)
(2) Microphone
Audio (+)
(4) Headphone
Low (-)
(3) Headphone
High (+)
(1) Microphone
Shield (-)
(4) Headphone
Low (-)
(3) Headphone
High (+)
(2) Microphone
Audio (+)
RTS Units
Telex Units
MENU
SET
MIC
PT
TX
PT
TALK
6
7
89
MENU
SET
MIC
PT
TX
PT
TALK
2
1
3
4
5
(1) Microphone
Shield (-)
(5) (4) Headphone
Low (-)
(3) Headphone
High (+)
(2) Microphone
Audio (+)

3-3
TR-700
Specifications
RF Frequency Range.........518 - 608 MHz, 614 - 740 MHz, 796 - 868 MHz in 18 MHz TX and RX bands
Power Requirements........................................6 “AA” Cells Alkaline (NiMH optional)
Current Draw ...................................................140 mA (Push-to-Talk, Talk On)
Temperature Range ..............................................-4° F to 130° F (-20° C to 55° C)
Dimensions .................................3.75”W x 5.05”H x 1.65” D (9.5 cm x 12.8 cm x 4.2 cm)
Weight ......................................................16 oz (454g) with alkaline batteries
TX Antenna..........................................1/4 Wave (supplied), Screw type, Replaceable
RX Antenna..........................................1/4 Wave (supplied), Screw type, Replaceable
FCC ID: .........................................................................B5DM515
Frequency Response..............................................................300Hz-8kHz
Microphone input sensitivity .............................................................7 mV
Local Headset Output ......................................40 mW output into 600W(1% distortion)
Transmitter
Type ...............................................................Synthesized, 712 channels
Transmit Power ..............................................50 mW Max. (auto-power reduction)
Modulation Type ........................................................................FM
Deviation .............................................................40 kHz (35 kHz Europe)
RF Frequency Stability................................................................0.005%
Modulation Limiter ................................................Peak-Responding Compressor
Radiated Harmonics & Spurious ........................................Exceeds FCC specifications
Receiver
Type ...............................Dual Conversion Superheterodyne, Synthesized, FM, 712 channels
RF Sensitivity........................................................<0.7 µV for 12 dB SINAD
Squelch Threshold .................................................20 dB SINAD (About 1.0 µV)
IF Selectivity.................................................................3 dB at 230 kHz
Image Rejection ...............................................................70 dB or better
Squelch Quieting......................................................................90 dB
RF Frequency Stability................................................................0.005%
Distortion ...............................................................<1% at full deviation

3-4 Blank

Initial Equipment Set-Up
Unpacking
Unpack your RadioCom™System. Below are the items that
should come with your base station and each belt pack.
BTR-700
TR-700
Contact the shipper or your dealer immediately if anything is
damaged or missing. Fill out the registration card and return it
to Telex to register the unit.
4-1
Quantity Description
1BTR-700 Base Station
1Operating Instructions
1Power Cord
2Antennas (one Transmit and one Receive)
1Warranty Card
1Screwdriver
1Warning Card
4Rubber feet
Quantity Description
1TR-700 with Antennas
1Battery pack
1Instruction Sheet
1Screwdriver
1Warranty Card
Section
4

Antenna Connection
The base station is supplied with two (2) antennas. One
1/2-wave antenna for Transmit and one 1/2-wave for Receive.
The antennas have TNC male connectors.
The frequency range of the antennas should match the receiver
and transmitter of the base station. Match the color code on
the antenna with the color code on the base station.
Attach the transmit 1/2-wave antenna to the antenna input re--
ceptacle labeled “Transmit” on the right side of the rear panel.
The antenna should be vertically aligned.
Figure 7
Attaching Transmit 1/2-Wave Antenna
Attach the receive 1/2-wave antenna to the antenna input re--
ceptacle labeled “Receive” on the left side of the rear panel.
The antenna should be vertically aligned.
Figure 8
Attaching Receive 1/2-Wave Antenna
Antenna Polarization
The Telex Wireless Intercom System is “Vertically Polarized”.
This means both the transmitting and receiving antennas
should operate in the vertical position.
Figure 9
Vertically Polarized Antennas
Distance between Antennas
The distance between the base station’s receive and transmit
antennas is not adjustable when the antennas are connected di--
rectly on the back of the unit.
The antennas can be remoted for better signal path. A Telex
coax assembly with remote antennas may be required. See
“Accessory” section for ordering information.
NOTE: If your base station is to be located in a shielded rack
mount enclosure or other poor RF location, you must remote
the 1/2-wave antennas with coax assemblies. See “Accessories
and Replacement Parts” section for remote mounting hard--
ware.
Antenna Placement
Proper antenna placement probably has the most effect on
your TELEX Wireless Intercom System’s overall perfor--
mance. The following suggestions will result in optimum per--
formance.
Proper placement of the beltpack can be critical. The antennas
should be in the open. Bending the antennas up and placing
the beltpack in a pocket, etc., will reduce system distance.
It is suggested that the unit be worn on the belt with both an--
tenna’s vertical for best operating range and performance.
Figure 10
Proper Dressing of the Antennas
4-2
Telex
OFF
BAT/OM
TALK
RadioCom
TR-700
TM
VOL
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATION CONNECT
1234
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY INTERCOM
BTR-700
TALK
ANTENNAS SHOULD BE VERTICAL
Telex
OFF
BAT/OM
TALK
RadioCom
TM
VOL
TR-700TR-700

Keep the distance between the base station and the beltpacks
as short as possible. The greater the distance, the weaker the
signal. Make sure the “signal paths” between the base station
and beltpacks are unobstructed. You should be able to visibly
locate the base station antennas at all times for best perfor--
mance.
Figure 11
Distance Between base station and beltpack
Figure 12
Keeping Site Clear to Antenna
Attempting to operate the wireless intercom system through or
around walls, ceilings, metal objects, etc. will reduce system
range and performance.
Figure 13
Operating System Near Obstructions
DO NOT - mount the base station 1/2-wave antennas on, or
next to metal, such as beams, walls with metal studs, equip--
ment racks, etc. This also applies to the antennas when assem--
bled directly to the Base Station. This will “detune” the
antennas which can result in noise or loss of RF signal at the
Base Station, see Figure 13.
4-3
700 FEET
100 FEET
Telex
OFF
BAT/OMTALK
RadioCom
TR-700
TM
VOL
Telex
OFF
BAT/OMTALK
RadioCom
TR-700
TM
VOL
MIC GAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2 WIRE
4 WIRE
SELECT
IN
OUT
PORTABLESTATION CONNECT
1 2 34
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY INTERCOM
BTR-700
TALK
Telex
OFF
BAT/OMTALK
RadioCom
TR-700
TM
VOL
Telex
OFF
BAT/OMTALK
RadioCom
TR-700
TM
VOL
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATION CONNECT
1 2 34
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY INTERCOM
BTR-700
TALK
Telex
WTA
A
B
OFF
BAT/OMTALK
RadioCom
TR-800
TM
VOL
SA
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATION CONNECT
1 2 34
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY INTERCOM
BTR-700
TALK

Figure 14
Antenna Placement
Improving Reception and Increasing
Range
Keeping the distance from the base station and beltpack as
short, and unobstructed as possible will produce the most reli--
able performance.
The base station is supplied with two antennas. This should
provide satisfactory system performance in most applications.
System range can be enhanced by remoting the 1/2-wave an--
tennas.
4-4
Telex Telex Telex
#1 #2 #3
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATIONCONNECT
1 2 34
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATIONCONNECT
1 2 34
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATIONCONNECT
1234
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATIONCONNECT
1234
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY
MICGAIN
TALK/O.M.
VOLUME
ON/O.M.
ON/OFF
IN
OUT
AUXILIARY
2WIRE
4WIRE
SELECT
IN
OUT
PORTABLESTATIONCONNECT
1234
UP
DOWN
MENU
SET
RadioComä
ClearScanTM
COPY
INTERCOM
BTR-700
TALK
INTERCOM
BTR-700
TALK
INTERCOM
BTR-700
TALK
INTERCOM
BTR-700
TALK
INTERCOM
BTR-700
TALK
1. Placing BTRsin a shelf or
equipment rack and using re-
mote antennas is OK.
2. Placing the BTR on top of a
shelf or equipment rack un-
obstructed without remoting
the antennas is OK.
3.Placing BTRs in a shelf or
equipment rack with the an-
tennas mounted on the back
of the BTR or the side of the
rack is BAD.

Base Station Set-up
Location
Locate the base station with the front and rear of the unit ac--
cessible so that switches may be set and connections made.
Place the transmit and receive antennas on the base station.
Make sure the antenna’s color band match the color dot near
each antenna. See “Antenna Information” section for more in--
formation on choosing a proper operating location.
Power Connection
Plug the supplied power cord into the unit. The base station has
an IEC power receptacle that accepts 100 – 240VAC, 50 – 60Hz.
The specific receptacle type is an IEC 60320/C14. The cord it ac--
cepts is an IEC 60320/C13. These cords are common and avail--
able through many retail hardware/electronic stores if the cord is
lost.
Transmit Switches
There are two switches located on the lower left side of the rear
panel. The upper switch sets the transmit power level to high or
normal. The lower switch turns the transmitter on or off.
Transmit Power
Set the power level to normal if using the beltpacks at
close to medium distances (<200 feet, 161m,
line-of-sight) from the base station. Set the power level to
high if using the beltpacks at a distance (>200 feet, 161m,
line-of-sight) from the base station.
On/Off
Set the transmitter switch to on for normal use. In the off
position the base station transmitter is disabled. Setting
the switch to off will disables all the beltpacks from hear--
ing anyone else or even their own sidetone.
4-5
RECEIVE
HIGH
ON
NORM
OFF
TRANSMIT
POWER
I/C
TELEX CLEARCOM
RTS
INTERCOM
2 WIRE
L
O
O
P
T
H
R
U
4 WIRE
AUXILIARY AUDIO
INPUT OUTPUT POWER
100-240 VAC 50-60 Hz
TRANSMIT
PUSHPUSH
TRANSMIT
SWITCHES
INTERCOM
SWITCH
INTERCOM
INTERFACE POWER CONNECTION
BTR-700
FCC ID: B5DM516
CANADA 1321231218A
TELEX COMMUNICATIONS INC.
MADE IN USA
Figure 15
Base Station - Rear Panel

Intercom Switch
The Radiocom™wireless system can be interfaced to RTS
TW, Audiocom® (Telex), Clear-Com®, RTS matrix and other
intercom (I/C) systems. Set the Intercom switch on the rear of
the unit to the appropriate system and connect the system to
the base station. The intercom channel on the rear of the base
station has loop-thru male and female XLR connections for
two-wire systems and a RJ-11 type jack for four-wire systems.
This switch only affects the two-wire intercom systems. The
functions of the I/C XLRs change depending on the intercom
selected. Please see Section 11 for pinout information of the
different two-wire intercom systems.
Intercom Interface
Telex (Audiocom®) and Clear-Com® intercom systems re--
quire one cable for intercom. This interfacing is done through
the I/C 3 pin XLR connectors on the rear of the unit.
RTS TW intercoms also only need to connect one 3 pin cable
to one of the two intercom XLR connectors. Two channels of
audio are carried on one cable for RTS. RTS channel 1 is
placed on the intercom normally. Switch the rear panel I/C
switch to Clear-Com®to interface only to RTS audio channel
2. Once again, leave it in RTS to interface to only RTS audio
Channel 1.
Four wire intercom systems require only one cable for the in--
tercom to interface four wire intercom to the base station. This
interfacing is done through the I/C RJ-11 type jacks on the
rear of the unit. See Figure 16 for the pinout of the RJ-11
jacks.
Figure 16
RJ-11 Type/ Four-wire Pinout
4-6
NC
AUDIO IN +
AUDIO OUT +
AUDIO OUT -
AUDIO IN -
NC
PIN 6 5 4 3 2 1