BendixKing KHF 990 - Manual (Page 99)

KFS 594 CONTROL DISPLAY UNIT OPERATION
KFS 594 CONTROLS
The controls on the KFS 594 are: OFF/VOLUME knob, SQUELCH
knob, MODE selector knob, Frequency/Channel control knob and
STO (store) switch. The KFS 594 has no knobs or switches dedicat-
ed to the clarifier or program functions, but these functions are incor-
porated in the KFS 594 controls, as will be explained.
OFF/VOLUME
This smaller inner concentric knob (lower left) turns the system off
and on and controls volume. Clockwise rotation past the first click
turns the system on. Further rotation increases audio level. Good
operating practice suggests that the system shouldn’t be turned on
while starting the engines. It takes about two minutes for the KHF
950/990 to warm up. Until then, no frequencies or channel numbers
will be displayed.
When the KHF 950/990 is first turned on with the KFS 594 and has
warmed up, the system will “wake up” and display the last frequency
or channel used if the MODE selector knob is in the USB, LSB or AM
position. If the MODE selector knob is in the A3J or A3A mode, the
last maritime radiotelephone (public correspondence) station channel
used will be displayed.
In either case, 19 programmable preset channels and all 245 ITU
maritime radiotelephone network channels are stored in a nonvolatile
memory and can be recalled after the system is turned on.
Operation
3-62 KHF 950/990 Pilots Guide
Rev. 0
Dec/96
1
S
T
O
HF
OFF
TEL AM
USB
LSB
A3J
A3A
VOL
SQ
. 22
CH
M
H
Z
K
H
Z
Figure 3-75 OFF/Volume