Motorola PMLN5277 User Manual - Page 4

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PUSH-TO-TALK (PTT) OPERATION:

1. Always switch the radio OFF before

connecting the headset.

2. Attach the audio connector to the radio

taking care not to over tighten the fixing

screw.

Note: Once the headset has been installed the

radio speaker and the radio microphone

are both disabled. The user must speak

into the headset microphone and use

the headset speaker to listen to

incoming calls.

3. For Push-To-Talk operation, place the

PTT/VOX switch in the PTT mode.

Switch the radio ON. Care should be

taken not to set the volume level too

loud.

4. The flexible boom mounted Noise

Canceling microphone should be

positioned approximately 1.2 cm to 2.0

cm (½ inch to ¾ inch) from the user's

lips. Adjust the flex boom assembly to

this position. Do not twist the Noise

canceling module with windscreen,

either clockwise or counterclockwise to

avoid poor noise cancellation

performance.

5. Press the Ear cup Push-To-Talk button

located at the top of the left ear cup and