TM 1-1510-224-10
3.
Frequency/channel selector switch - Twist
to
select
desired
channel
number.
Previously programmed receive frequency
associated with that channel number will
appear in the display.
4.
Frequency/channel
selector
switch
-
Depress repeatedly until cursor is at the
digit to be changed.
NOTE
The first one or two digits (MHz) of
the frequency are shown on the
upper right portion of the display,
while the last four digits (kHz) of the
frequency
are
displayed
on
the
bottom of the display.
5.
Frequency/channel selector switch - Twist
knob until desired number has been
selected. A flashing dash will appear to
right of channel number to indicate that
transceiver is in program mode.
6.
Continue moving cursor and changing
digits until desired frequency appears in
display.
NOTE
The program mode may be exited at
any time and the previously stored
frequency returned by keying the
microphone.
7.
Store switch - Depress to store frequency
in receive portion of memory. TX
annunciator will flash to indicate that
memory is ready to receive transmit
frequency.
8.
Frequency/channel
selector
switch
-
Depress repeatedly until cursor is at the
digit to be changed.
NOTE
The first one or two digits (MHz) of
the frequency are shown on the
upper right portion of the display,
while the last four digits (kHz) of the
frequency
are
displayed
on
the
bottom of the display.
9.
Frequency/channel selector switch - Turn
knob until desired number has been
selected. A flashing dash will appear to
right of channel number to indicate that
transceiver is in program mode.
10.
Continue moving cursor and changing
digits until desired transmit frequency
appears in display.
NOTE
The program mode may be exited at
any time and the previously stored
frequency returned by keying the
microphone.
11.
Store switch - Depress a second time to
store frequency in transmit portion of
memory. Cursor will stow and flashing
dash will disappear to indicate that HF
control-display unit is no longer in program
mode.
12.
Antenna coupler- Tune by keying radio
momentarily. During antenna coupler
tuning process, TX on display will flash
and frequency numbers will be blank.
13.
When TX annunciator stops flashing and
frequency
reappears,
antenna
tuning
cycle is complete and transceiver is ready
to transmit on selected frequency.
e.
Clarifier Operation. A clarifier function is
provided by the control-display unit which allows the
operator to make small adjustments to the receive
frequency when operating in the channel mode (simplex
or semi-duplex) in the USB mode. The clarifier is not
normally used in the AM mode and cannot be used with
the emission mode selector switch in the A3J position.
The clarifier helps eliminate unnatural sounds associated
with SSB transmission as a result of off-frequency
ground station transmissions. Operate clarifier as
follows:
1.
Frequency/channel
selector
switch
-
Depress repeatedly until last digit of
receive frequency is flashing.
2.
Frequency/channel
selector
switch
-
Rotate to increase or decrease last digit of
receive frequency by one increment.
3.
Received audio quality - Monitor. If
reception does not improve sufficiently, try
additional changes in last digit.
NOTE
If transmission is made while using
clarifier, transmission will be on the
originally selected frequency. The
dash to the right of the channel
number
will
not
flash
and
the
transceiver will not be in the program
mode.
4.
To exit clarifier mode, depress store
switch or return last digit to original
frequency selection.
3-14
