NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-21
Page
4
Code
02
JUNE 29, 2001
NOTE: - The discrete frequency mode always provides simplex
operation (transmit and receive frequencies are the same).
- Always key the PTT after selecting a new frequency to initiate
antenna tunning, otherwise you may experience poor
reception or miss an important call.
PROGRAMMABLE CHANNEL OPERATION
In the channel mode operation, the user may select user programmed
channels by their channel numbers. For user programmed channels:
1 - Access channelized operation.
Apply power to system (rotate the VOLUME knob from the OFF
position). Wait for about two minutes, until the system has warmed
up. Until then, no frequency is displayed. Make sure that the
FREQ/CHAN button is pressed, in the CHAN position.
2 - Select the channel.
Rotate the small inner concentric knob to select the desired channel
number.
3 - Tune the antenna.
Momentarily key the PTT to initiate antenna coupler tuning cycle.
Adjust volume and squelch controls, as desired.
THE 99 USER CHANNELS PROGRAMMING PROCEDURE
The 99 user programmable channels available in the KHF-950 system
can be programmed on the ground or in flight. All programmed
information is stored in a nonvolatile memory and can be recalled by
selecting the desired user channel number.
There are three types of channels that can be programmed:
1 - Semi-duplex
The user programs two different frequencies, one for receive and
one for transmit. The user also assigns one of the available
operating modes (USB, LSB or AM) to the selected channel. Semi-
duplex operation is available only when the KHF-950 is being
operated in the CHAN mode.
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