11. “CALL” Button / Sensitivity /
VOX delay adjustment. By
pushing this button, the radio will
send an audio signal to the other
users on the same frequency. If
pressed at the switching on of
ALAN 451, you can program the
VOX sensitivity and delay (time to
return in RX mode).
12. “PTT” (Press to talk).
Press PTT button to transmit,
(display shows
). If you release
it, you will activate the receiver
(
is visible).
13. “MON” (Monitor) button. By
pressing this key, the automatic
squelch (background noises
reducer) is excluded; in this case
you can even receive low sensitivity
signals.
Back
6 Controls description
14
15
16
Side
CALL
PTT
MON
11
12
1313
English
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