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VOR NAVIGATION (IC-A24 ONLY)
■ Duplex operation
(U.S.A. version only)
The duplex function allows you to call a flight service station
while receiving a VOR station. The duplex function requires
frequency programming for the flight service station in ad-
vance.
D Programming a duplex frequency
q Push [CLR•DEL] to select the frequency mode.
w Set a NAV band frequency using the tuning dial or keypad.
• NAV band frequency range: 108.00–117.975 MHz
e Push , then push [5•DUP-W
].
•“DUP” flashes and transmit frequency appears.
r Set the frequency of the flight service station using the tun-
ing dial or keypad. When using the tuning dial, push
[ENT•
WX] after setting a frequency.
• The displayed frequency returns to the NAV band frequency.
D Operating the duplex function
q Set the desired frequency in NAV band.
• NAV band frequency range: 108.00–117.975 MHz
w Push , then push [6•DUP] to turn the duplex function
ON.
•“DUP” appears on the function display.
e Push and hold [PTT] to transmit at the pre-programmed
transmit frequency.
r Release [PTT] to return to receive.
t Push , then push [6•
DUP] to cancel the function.
•“DUP” disappears on the function display.
NOTE: A duplex frequency can be programmed into each
memory channel independently. Set a duplex frequency
before programming the memory channel, if desired. The
duplex ON/OFF setting can also be programmed into a
memory channel.
EXAMPLE: Programming 123.65 MHz as the transmit frequency in the duplex function.
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