COMMUNICATIONS, HF COM
Operation
Aircraft Operations Manual
4/2.2
O
PAGE
4
Apr 01/15
COLLINS HF 230
CONDITIONS
NORMAL PROCEDURES
(Cont’d)
1.
Ensure that the CHAN/FREQ selector is in the CHAN position.
2.
Select the desired user channel.
Rotate the left outer channel select knob in either direction until user channel 1
or 40 appears at the right side of the CHAN display. Then use the right outer
channel select knob to select the desired channel number (from 1 to 40) to
program.
3.
Initiate program mode.
Press the program (PGM) button once to initiate the programming sequence.
At this point, the entire display will begin to slowly blink.
4.
Enter the receive frequency and mode of operation.
Set the desired receive frequency using the four frequency select knobs. The
selected frequency will appear in the FREQ kHz display. Next, select the de-
sired operating mode (USB, LSB, AM, TEL SUP CAR or TEL PLT CAR) by
pulling out the PULL MODE knob and rotating it until the appropriate mode
appears in the MODE display.
5.
Store the receive frequency and mode of operation.
With the desired receive frequency and mode being displayed, press the
PGM button once again to store the data. The display will blank for a short
period of time to confirm storage.
6.
Terminate the programming sequence.
When the display returns, it will be blinking faster with the simplex transmit
frequency displayed(this is the same as the already programmed receive fre-
quency. At this point, the operator can terminate the programming sequence
in any of the three ways.
a. By momentarily pressing any PTT button.
b. By positioning the CHAN/FREQ selector to FREQ and then back to
CHAN.
c. By waiting for the 20 second timer to run out
(this is the preferred method).
When the programming sequence is terminated, the display will return to nor-
mal with the new channel data (Channel number, mode and receive
−
only fre-
quency) showing.
