Maas LP-4502+ Bedienungsanleitung Seite 37

F8 Squelch Setting
Under menu item 8, choose squelch level 0 to 7 depending
on your need. If the squelch level is at 0, the static sound is
heard all the time. If set at 1, the radio is best to pick up
weak signal but susceptible to interferences. Squelch level 7
is the least sensitive and suited for use against high
interferences.
Factory default: 3
F9 End of Call Confirmation ON / OFF
Under menu item 9, when the function is on, each time the
Call is finished, the unit will send a tone to confirm the end
of the call.
Factory default: OFF
*F3 / F4 / F7, these are the channel parameters, there are
just temporarily changed, after turn off the device or switch
the current channel, these settings are restore to the original
settings.
Tone Call
Holding [PTT], temporarily press [CTS] to send tone call to
other receivers. (For selection of tone call, refer to F1).
VOX ON / OFF
Holding [PTT], temporarily press [SET] to enable VOX. To
disable it, holding [PTT] and temporarily press [SET] again.
When VOX is enabled, the icon appears.
For selection of VOX sensitivity, refer to F4.
*While VOX is enabled, press of [PTT] is no longer required
during transmission. Just talk into the microphone area with
appropriate sound (depending on VOX sensitivity).
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