Telex tr-200p, tr-200 User Manual

Telex

Operating Instructions

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RadioCom

MODEL TR-200, TR-200P
WIRELESS
BELT-PACK
TRANSCEIVER

Table of Contents

Page

INTRODUCTION .......................................................................................................1

General Description ...............................................................................................1

Block Diagram...................................................................................................2

TECHNICAL INFORMATION ..................................................................................3

Controls and Connections......................................................................................3

Features..................................................................................................................4

Volume ON/OFF Control..................................................................................4

Low Battery and Over Modulation Indicator LED ......................................... 4

Push-To-Talk/Lock-To-Talk Switch .................................................................5

Transmit LED Indicator ....................................................................................5

Headset Jack ......................................................................................................5

Belt Clip.............................................................................................................5

Microphone Gain Control..................................................................................5

Dynamic/Electret Switch ...................................................................................5

Battery Compartment.........................................................................................5

SPECIFICATIONS ......................................................................................................6

SET-UP........................................................................................................................7

Unpacking..............................................................................................................7

Headset Connection ...............................................................................................7

Dynamic/Electret Switch .......................................................................................7

Battery Installation.................................................................................................8

Battery Check ........................................................................................................9

Battery Removal ....................................................................................................9

Dressing the Unit.................................................................................................10

OPERATION .............................................................................................................11

Power ...................................................................................................................11

Push-to-Talk/Lock-to-Talk Switch ......................................................................11

Adjusting Microphone Gain ................................................................................12

BATTERY INFORMATION.....................................................................................13

General.................................................................................................................13

Alkaline Batteries ............................................................................................13

Nickel-Cadmium Batteries ..............................................................................13

BC-4 Battery Charger......................................................................................13

FCC INFORMATION ...............................................................................................14

RECOMMENDED HEADSETS...............................................................................14

ACCESSORIES.........................................................................................................17

WARRANTY SERVICE INFORMATION...............................................................20

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INTRODUCTION

General Description

The Telex Model’s TR-200 and TR-200P Belt-pack Transceivers, are designed
with one transmit and one receive channel and will operate on selected frequencies
within the 150 to 216 MHz band.

The TR-200 Transceiver operates in the continuous transmit mode with the audio,
or talk, activated by a switch. As many as four TR-200 belt-pack transceivers can
operate in a fully duplex network with one Telex Model BTR-200 or BTR-200 II
Base Station.

The TR-200P Transceiver operates in the Push-to-Transmit mode (the transmit and
talk function are activated together). Any number of TR-200P transceivers can be
used in a half-duplex network with one BTR-200 or BTR-200 II Base Station. Op­erate only one transmitter at a time. Attempting to use two transmitters simulta­neously on the same channel will cause interference.

Both the TR-200 and TR-200P can be configured to operate with another TR-200
or TR-200P.

The receiver portion of the TR-200 and TR-200P consists of a crystal controlled
dual conversion superheterodyne design.

The transmitter portion of the TR-200 and TR-200P consists of a crystal controlled
multiplier/amplifier design.

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Figure 1

Block Diagram of TR-200 Transceiver

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TECHNICAL INFORMATION

Controls and Connections

LOW BATTERY / OVERMODULATION
INDICATOR LED

TALK INDICATOR LED

PUSH-TO-TALK/
LOCK-TO-TALK SWITCH

BELT CLIP

HEADSET JACK

External controls and Connections

VOLUME ON/OFF CONTROL

R

RECEIVE ANTENNA

TRANSMIT ANTENNA

Figure 2

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DYNAMIC / ELECTRET
SWITCH

FCC ID: B5DTR200
S/N:
P/N:70681-

E

BATTERY COMPARTMENT

Internal Controls

ACCESS TO MICROPHONE
GAIN CONTROL

D

Figure 3

Features

Volume ON/OFF Control: This thumbwheel control serves as both an on/off

switch and as a volume control. The transceiver is turned off when the control is in
the extreme counterclockwise position, when viewed from the front, and the vol­ume is loudest when the control is in the extreme clockwise position.

Low Battery and Over Modulation Indicator LED: (labeled “bat/ovmod”)

Low Battery Indicator: Part of the battery check circuit. When the volume

ON/OFF Control is placed in the “ON” position the LED will flash one time if
the battery is good. A poor battery will cause the LED to illuminate continu­ously and a bad or unusable battery will not cause any illumination at all.

Over Modulation Indicator: Uses the same LED as the low battery indicator.
During the transmit mode if microphone gain is too high the LED will illumi­nate when talking. Adjust microphone gain.

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Push-to-Talk/Lock-to-Talk Switch:

For Model TR-200, this switch enables the talk function. Press the button

and hold down as long as required (Push-to-talk function), or if continuous
talk is required (lock-to-talk function), quickly press the button two times to
lock on. To release the talk function, press the button one time.

For Model TR-200P, this switch enables the transmit and audio function
and operates as described for TR-200.

Transmit LED Indicator: (Labeled “talk”) Will be illuminated whenever the
transmit function is enabled.

Headset Jack: 4 Pin XLR Connector for Input/Output. The headset jack will ac­cept 5 different Telex Model headsets and 1 handset. See Recommended Headsets
starting on Page 14.

MICROPHONE
SHIELD (-)

HEADPHONE
BALANCED
AUDIO
OUT

MALE CONNECTORS

BTR-200/TR-200

MICROPHONE
AUDIO (+)

1

4

3

2

Figure 4

Headset Jack Wiring

Belt Clip: Combination Belt Clip/Battery Cover. Access to Battery Compartment,

Microphone Gain Control and Dynamic/Electret Switch is accomplished by re­moval of belt clip via a quick release 1/4 turn fastener.(See Page 8)

Microphone Gain Control: Screwdriver adjustable by removing belt clip and pry­ing out the small rubber plug to the right of the screw boss. Adjust the gain control
clockwise to increase microphone gain or counterclockwise to decrease micro­phone gain. Replace rubber plug.

Dynamic/Electret Switch: Place switch towards “D” when using a Dynamic Mi­crophone or “E” when using an Electret Microphone.

NOTE: All Telex headsets used with this intercom are dynamic microphones. Unit
is shipped in the “D” position.

Battery Compartment: Holds 6 AA batteries in a removable battery holder.

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