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right) selects VHF, 4 (lower left) selects HF, and pressing straight down on 5
(center position) selects FM-2. As a radio is selected, an arrow will appear
beside the frequency of that radio on the MFD. This arrow will point to the
right or left indicating that the pilot or CPG respectively is selected to
transmit on that radio.
Figure 3-3. CSC Switches (Sheet 2 of 2)
3-11
TM 1-1520-248-10
ICS CONNECTOR
ICS REMOTE SWITCH
ICS
CONNECTOR
ICS
CONNECTOR
406075-1485-1
J3164
Figure 3-4. Ground Crew ICS Switch and Receptacles
3-12
TM 1-1520-248-10
1
2
3
4
406075-370
J1138
CONTROL/INDICATOR FUNCTION
1. ICS/RADIO switch  No transmitting; interphones function only when HOT MIKE switch is
Normal position ON (fig. 3-2), or if the VOX ON has been selected.
2. ICS/RADIO switch  Keys interphones only, regardless of position of transmit selector
First detent switch.
3. ICS/RADIO switch  Transmits on radio selected for transmit on CSC or radio select switch
Full detent on pilot collective control head (fig. 3-3).
4. DSPL SEL switch (pilot Four-position, center spring-loaded switch that changes Display pages
cyclic only) between COMM/FREQ (right), VSD/HVR (left), HSD/FPLN (down), and
MMS (up).
NOTE
Operation of CPG cyclic transmit switch is identical.
Figure 3-5. Pilot Cyclic Grip Communications Switches
3-13
TM 1-1520-248-10
3-10. RADIO OPERATIONS  FM-1, FM-2, HF, (1) The HQ is an RT-1145F. The HQ II is an RT-
VHF, OR UHF RADIOS. 1614.
The following pages of this section contain procedures (2) On the UHF Radio Control page (fig. 3-6) the
for operation of the five communication radios. The word DATE will be displayed at L-3 directly above the
operation of each radio is covered under one generic WOD/NET.
procedure except where operation may be unique to a
particular radio. (3) The NATO radio has a fill connector on the
face of the radio.
3-11. HAVE QUICK RADIO SET AN/ARC-164. b. Operation.
Common frequencies must be entered into all HAVE a. Description.
QUICK radios. Time synchronization is provided to the
The UHF/AM Radio set is produced in two versions: the radio by an external time distribution system. A Timebasic
HAVE QUICK (basic HQ) and HAVE QUICK II of-Day (TOD) signal must be received from the time
(HQ II). HAVE QUICK series radios provide a jam- distribution system or EGI each time the radio is turned
resistant capability for air-to-air and air-to-ground on. The hopping pattern and hopping rate are
communications. Operation in the Anti-Jamming (AJ) determined by the aircrew inserted Word-of-Day (WOD)
mode is accomplished using synchronized precision basic HQ or Multiple-Word-of-Day (MWOD) HQ II. The
clocks, programmed frequency switching patterns, WOD/MWOD is a multi-digit code, common to all HAVE
uniform frequency hop rates, and common entry into QUICK UHF radios of the same version in the same
the net. The various versions retain the standard single net. Prerequisites for AJ mode operations are as
frequency UHF voice/digital normal (NORM) mode of follows:
operation and are backwards compatible. HQ II is an
improvement on the basic HQ radio using most of the (1) Common frequencies (Hopset).
same components. The new system was designed to (2) Time synchronization (TOD).
counter the near-term jamming threat, correct known
deficiencies in the basic HQ system and enhance the (3) Common hopping pattern (TSK).
radio’s operability. HQ II provides the following
improvements:
1. Makes more frequencies available f o r
hopping.
2. Provides more uniform frequency distribution.
3. Corrects the problems of midnight madness
and net rollover.
4. Improves compatibility with Vinson systems
(KY-58).
5. Adds date information to the Time-of-Day
(TOD).
6. Adds capability for electronic insertion of the
Multiple-Word-of-Day (MWOD).
The HQ II is compatible with the basic HQ radio. The
HQ II is a dual modification consisting of the non-NATO
and NATO radios. The non-NATO radio provides the
six improvements listed above. The NATO radio has
these improvements plus electronic fill capability.
PULL
MAN
PULL
BKUP
BRT
C
ONT
VSD HSD MMS COMM
EMER T/R
KYBD
12 241.075
FC10
UHF
T/R + G
406075-732
J0546
DATE
WOD
NET
DIPH WIDE
XMIT TONE
TOD CONTROL AJ NORM
ON SQL
There are three ways of identifying the HQ II from the Figure 3-6. UHF Radio Control Page  HQ
basic HQ Radio/Transmitter (RT):
　
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