Icom IC-M127

© RF attenuator
This item turns the RF attenuator func-
tion ON and OFF. The RF attenuator is
activated when rotating [SQUELCH]
deep clockwise and is useful when
strong adjacent signals alternately
open and close the squelch.
an
TTENUATOR
ON: rotating [SQUELCH] deep
clockwise activates the RF
attenuator
OFF: RF attenuator cannot
be activated.
© Internal speaker ON/OFF
When you connect an external speaker
and the transceiver's internal speaker is
not required, the internal speaker can
be deactivated. Note that DSC alert's
will not be turned OFF even when this
item is set to OFF.
INT 5P
ON: audio is emitted from the
1C-M127's internal speaker
OFF: audio is emitted from a
connected external speaker
© Auto fog horn frequency
SET MODE 6
The audio frequency of the auto fog
horn can be adjusted to suit your pref-
erence. While this item is selected,
pushing [PTT] outputs the fog horn—
experiment with the frequencies avail-
able until you find one you like.
* The horn outputs from the hailer speaker.
AUTO FOG H
850 Hz 5
in
oat
29