Telex BTR-800 dimensions Headset Connection, Transmit mode, TR-800 and TR-825 Rear Panel

MICROPHONE

GAIN CONTROL

TRANSMIT

SWITCH

SET

MIC	PT
	TX

MENU

PT

TALK

HEADSET	BATTERY
CONNECTION
	RELEASE
	LATCH

RECEIVE TRANSMIT

ANTENNAANTENNA

Figure 30

TR-800 and TR-825 Rear Panel

Antenna Connection

The beltpack comes with two detachable, screw-type, 1/4-wave antennas. To attach the two antennas, screw into the receptacles at the bottom of the beltpack. The color dot on the screw end of the antenna must match the color dot on antenna receptacle. The receive antenna screws into the left receptacle if the beltpack is laying flat with the battery compartment face up and the antenna receptacles facing you. The other antenna is the transmit antenna. New antennas can be ordered if de- sired, see the “Accessories” section.

Headset Connection

Insert the headset plug into the XLR connector. See the head- set pinout in the “TR-800/TR-825” beltpack controls and con- nections” section if this is not a Telex headset. A dynamic or electret headset microphone is automatically detected by the beltpack and a bias voltage supplied if needed.

Transmit mode

The rear panel located transmit switch has the following two modes:

Push-to-Talk (PT TALK) – Recommended position –

The transmitter is always on. No audio is sent unless the talk switch, WTA or SA button is pressed.

Push-to-Transmit (PT TX) – The transmitter and audio path are off except when the talk switch, WTA or SA but- ton is pressed.

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