BendixKing KHF 990 - Manual (Page 94)

3. Receive only. The pilot programs a frequency in receive, but
leaves the transmit portion of the preset channel blank. The transmit-
ter is locked out and can’t be used when a channel has been pro-
grammed for receive only operation. The pilot also assigns an operat-
ing mode (USB, LSB or AM). (Used to listen to weather, time, Omega
status, frequency standard and geophysical alert broadcasts.)
To gain access to channelized operation of the KHF 950/990, make
sure the FREQ/CHAN button is “in”. If it is not “in”, a momentary push
will latch in and engage CHAN (channelized ) operation.
To utilize the existing programmed channels (i.e. no programming is
required) simply use the smaller inner concentric Frequency/Channel
control knob to select the desired channel number. Then momentarily
key the mic to tune the antenna coupler.
If channel programming is required, it is necessary to activate the
program mode once you are in channelized operation. Use a pencil
or similar pointed object to push the PGM (program) switch “in”. (This
switch is located on the lower right of the KCU 951 Control Display
Unit.) The letters “PGM” will appear in the lower part of the display
window and the KHF 950/990 will remain in the program mode until
the PGM switch is pressed again. (The switch is an alternate-action
type: push on, push off.) It is recessed to prevent accidental activa-
tion of the program mode.
Now you are ready to program. The procedures are only slightly dif-
ferent, depending on the type of channel you are programming.
RECEIVE-ONLY CHANNEL PROGRAMMING
With the FREQ/CHAN button “in” and PGM switch pushed so PGM
shows in the display window:
Operation
3-57 KHF 950/990 Pilots Guide
Rev. 0
Dec/96
FREQ KHZ CHANNEL
CLARIFIER
PULL
ON
SQUELCH
OFF
VOLUME
STO PGM
MODE FREQ CHAN
HF
ı
10000.0 75
AM PGM TX
Figure 3-71 Receive Only Channel Programming