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■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.
DProgramming a duplex frequency
qPush [CLR•DEL] to select the frequency mode.
wSet a NAV band frequency using the tuning dial or keypad.
• NAV band frequency range:
ePush , then push
• “DUP” flashes and transmit frequency appears.
rSet 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.
VOR NAVIGATION
DOperating the duplex function
qSet the desired frequency in NAV band.
• NAV band frequency range:
wPush , then push [6•DUP] to turn the duplex function ON.
• “DUP” appears on the function display.
ePush and hold [PTT] to transmit at the
transmit frequency. | 6 |
r Release [PTT] to return to receive. |
tPush , 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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