Zartek COM8 User Manual - page 16
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" " or " " key to continue scanning or press the PTT key to
store the channel and communicate back.
If there is no activity, it will continue to scan. By pressing
the PTT key, it will stay on the current selected channel and
quit the scanning function or press the "
" key once to
confirm the selection and continue to the next menu feature.
(20) KEYPAD LOCK
Press and hold the" " key for 1.5 seconds, the keypad lock
"
" icon will appear.
This will lock all keys except the PTT key.
To unlock, press " " key again for 1.5 seconds.
(21) USING A PTT/VOX EARPHONE (Optional)
A single headset can be used with both PTT and VOX capabilities.
Plug the PTT/VOX Earphone into the earphone jack
Press & hold the PTT key on the in-line microphone to
speak.
Release the PTT key to listen.
Adjust volume control if necessary.
Set up VOX on the radio using the menu "
" key (see
section 13 above).
Speak into the in-line microphone to activate the transmitter
and listen though the earpiece.