Telex BTR-300 TR-300 Operation, Battery Check, Push to TALK/PUSH to Transmit, Headset Volume

TR-300 OPERATION

POWER

You should now be ready to turn the TR-300 “ON”. Rotate the OFF/ON Volume Control Switch on the TR-300 clockwise to turn the unit on.

BATTERY CHECK

As you turn the unit on, note that the battery light (labeled bat/ovmod) should flash one or more times with good batteries. Low batteries will cause the light to be illuminated continu- ously and a bad battery will not cause any illumination at all.

PUSH TO TALK/PUSH TO TRANSMIT

To enable the talk function on the Model TR-300 press and hold down on the talk but- ton and begin talking. Releasing the talk but- ton will discontinue the microphone audio. For continuous talk, quickly press the talk but- ton twice. This locks on the talk function. To release the talk function press the talk button once. Note that the TR-300 transmits any time that the power is on.

NOTE: The talk light will be illuminated whenever the talk function is activated.

bat/

talk

TALK LIGHT

ovmod

Figure 30

Low Battery/ Overmodulation

and Talk Indicator Lights

HEADSET VOLUME

talk

talk

After batteries have been checked, adjust the volume control by rotating the control as re- quired for comfortable listening volume.

RadioCom￿	ON/ INCREASES
	VOLUME

ON / OFF SWITCH AND

VOLUME CONTROL

TR-300

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

Figure 32

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

Figure 31

Power ON/OFF - Volume Control - TR-300

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