Communications Headset  (190-0312)    Operation        Faxback Doc. # 15165
with VOX

VOX OPERATION

Follow these steps to have the headset automatically switch to transmit
when you talk, and switch to receive when you stop talking.

1.  Set the rotary switch on the VOX controller to VOX SENS L (low) or H
    (high).  If you are operating the transceiver where there is little
    background noise, set the switch to VOX SENS H.  When background noise
    or wind is strong, set the switch to VOX SENS L.

2.  Turn on your transceiver.

3.  Speak into the microphone.  The transceiver automatically switches to
    transmit.  When you stop talking, the transceiver automatically
    switches to receive after about 1 second.

NOTE:  If you set the switch to VOX L, you might have to speak in a
       louder-than-normal voice.

4.  When you finish operation, turn off the transceiver first, then turn
    off the headset by setting the rotary switch to OFF/PTT.

NOTES:  The headset quickly switches the transceiver to transmit after you
        start talking.  However, some transceivers require more time
        between when the transmit circuit is activated and when it actually
        begins to transmit.  On these transceivers, the first part of the
        first word you say might not transmit.  You might want to precede
        your transmission with "Umm,"  or extend the first sound to ensure
        your entire message is received.

        You can use the PTT button during VOX operation.  To transmit
        continuously even if you stop talking for a few seconds, press and
        hold down PTT.  When you release PTT, transmitting stops after
        about 1 second of silence.

CAUTION:  Never position the connection cord and the VOX controller near
          the transceiver's antenna.  If the cord or the VOX controller is
          too close to the antenna, the transmitting range might be
          shortened or the controller might not correctly switch between
          transmit and receive.

PTT (PUSH-TO-TALK BUTTON) OPERATION

Follow these steps to manually switch between transmitting and receiving.

1.  Set the transceiver's volume control to the minimum position.

2.  Set the rotary switch on the VOX controller to OFF/PTT.

3.  Turn on your transceiver and adjust its volume control to the desired
    sound level.

4.  Press PTT to transmit and release it to receive.


(TE/all-05/05/95)