User's Manual
Table Of Contents
- Telex Model TR-1 Beltpack
- The Telex model TR-1 beltpack transceiver is a component of the BTR-1 wireless intercom system. The TR-1 is intended for use as a belt worn wireless full duplex mobile intercom radio for use in a professional installation such as television or cinema pro
- Each BTR-1 base station can be used with one TR-1. The TR-1 transmits within the 614 to 746 MHz range (TV Channels 38-59). It receives in the 482 to 608 MHz range (TV Channels 16-36). The TR-1 transmitter operates on a single frequency within an
- Typical transmitter conducted output Power is 50 mW. The TR-1 transmit power can be set to automatically reduced when the unit is close-in to the base station to aid in intermodulation reduction and unnecessary transmit power.
- Operating frequencies can be selected from pre-set groups or the user can select special operating frequencies within the 18 MHz wide allotments.
- Transmit and receive antennas are attached to the TR-1. Either or both unscrew for field replacement but are not coaxial connectors.
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Specifications:
General:
Input Power…………..9.0 VDC Alkaline or NiMH.
Antennas…………………………………Attached
TX / RX………………..One TX, one RX
Frequency agile, 25 KHz steps,
within 18MHz wide allotments.
Frequency Range
TX…………….614 – 746 MHz
RX…………….482 – 608 MHz
(within 18MHz wide allotments)
TX / RX Data Rate………………..….150 kbps
Transmitter:
RF Power Output…………………50 mW typical
(terminated)
Modulation type………………….GMSK
Audio Frequency Response………100 Hz to 7 kHz
Microphone Sensitivity ……..……7.75 mV
Receiver:
Sensitivity…………<0.8uV for 12 dB SINAD Typical
Audio Frequency Response….100 Hz to 7 KHz
Audio Output (headset)…….40 mW, 600 Ohms
(1% Distortion)