FTA-310 O
perATing
M
AnuAl
42
vor n
avIgatIon
Split Operation
The split operation feature allows you to transmit a call
to a Flight Service Station using the COM band frequen-
cies, while receiving a VOR station (in the NAV band).
VOR stations equipped with this capability typically are
shown, on navigation charts, with the voice calling fre-
quency in parenthesis above the navigation frequency.
Programming a Transmit Frequency
Press downward on the
VOLUME
knob, repeatedly
if necessary, to select the VFO mode.
Set a NAV band (108.000 - 117.975 MHz) frequen-
cy using the
DIAL
selector knob or keypad.
Press the [
F
] key momentarily, then press the [
MW
(
SPL-W
)] key. The “
” icon will blink, and the
transmit frequency will appear on the display.
Now set your radio’s transmit frequency, where the
Flight Service Station will be listening for calls, us-
ing the
DIAL
selector knob or keypad.
Press and hold in the [
MW
(
SPL-W
)] key for 2 sec-
onds to save the transmit frequency and return to the
NAV band frequency.
Note
: You have now stored the separate transmit fre-
quency, but you have not yet activated the split-frequen-
cy function; go on to the next section.
Operating in the Split Mode
It is assumed that you have already set the desired
VOR station’s frequencies (in the NAV band) per
the above instructions.
Press the [
F
] key momentari-
ly, then press the [
7
(
SPL
)]
key to turn on the “Split”
function. The “
” icon
will appear on the display.
Press and hold in the
PTT
switch to transmit on the
split transmit frequency.
Release the
PTT
switch to return to the receive
mode.
To disable the “Split” function, press [
F
]
[
7
(
SPL
)] again.
Note
: A split frequency can be programmed into each
memory channel independently. Set a transmit frequen-
cy before programming the memory channel, if desired.
The split function on/off setting can also be programmed
into a memory channel.
