Icom IC-78

36
6
EXTRA FEATURES
n 2-Tone alarm operation
The 2-tone alarm is used for instant emergency oper-
ation. When the 2-tone alarm function is activated, the
call channel (2182 kHz, distress channel, is pre-pro-
grammed) is selected automatically, and emits a dis-
tress alarm.
D Operation
➥ Push [TONE] to emit a distress alarm signal for a
specified time period from the speaker only.
• “ ” appears.
• Push [TONE] again to cancel the distress alarm signal
emission.
• Push [CALL] to return to previous condition.
➥ Push [TONE] for 1 sec. to transmit a distress alarm
or alarm testing signal for a specified time period.
• “ ” appears with the transmit indicator.
• Push [TONE] again to cancel the distress alarm signal
transmission.
• Push [CALL] to return to previous condition.
[TONE]
D Channel clearing
If un-necessary channels are available, the stored
frequency can be cleared. The cleared channels are
skipped in the channel mode operation,
q Select desired channel in channel mode. (p. 13)
w Enter VFO mode by pushing [FC] for 1 sec.
• Channel selection with [√ DN]/[UP ∫] is also possible
in the VFO mode.
e Push [0], then [ENT].
r Push [ENT] for 1 sec. (3 beeps are emitted), to clear
the selected channel.
• The “ ” indicator appears.
Note: Blank channels cannot be selected with
[√ DN]/[UP ∫], and channel selector; can only
be selected with the keypad.
Appears when
cleared.