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crew voice communications, ICS voice alerts and tones, as well as advisory tones originating
external to the ICS.
Volume controls are provided to control headset volume for:
1. Voice Activated Intercom (VOX)
2. Transmit sidetone/aircrew intercom audio/ground crew intercom audio
3. MIDS A audio
4. MIDS B audio
5. RWR audio
6. WPN delivery audio
7. TACAN ident
8. Auxiliary audio (available for other uses).
The ICS is also used to control the following COMM/IFF related functions:
1. Selection of PLAIN voice or CIPHER relay modes (RLY switch).
2. Selection of guard transmit (G XMT) for COMM 1 and 2 (G XMIT switch).
3. Hold or zeroize of IFF crypto code (CRYPTO switch).
4. Selection of IFF Mode 4 cautions, advisories, and voice alerts (MODE 4 switch).
5. Selection of IFF NORM or EMERG operating modes (IFF MASTER switch).
23.1.1 ICS Function Selector Switch (F/A-18F). The ICS function selector switch is located in each
cockpit and is used to select the operating mode for ICS voice communications. The switch is located
on the ANT SEL panel on the outboard left console in the front cockpit and on the VOL control panel
on the left console in the rear cockpit. In order for a crewmember to communicate on the ICS, the ICS
function switch in that cockpit must be in HOT MIC and the ICS VOL knob must be set (as desired)
above the LO position.
A1-F18EA-NFM-000
VII-23-1 ORIGINAL
RADIO
ORIDE
Selects HOT MIC in both cockpits and ensures ICS volume is louder than COMM
volume.
HOT MIC Enables the front (rear) cockpit microphone for ICS transmissions.
COLD MIC Disables front (rear) cockpit microphone.
23.2 VHF/UHF COMMUNICATION SYSTEM
The aircraft has two ARC-210 voice communication radios. The VHF/UHF radios, COMM 1 and
COMM 2, provide air-to-air/air-to-ground voice communications; and, in conjunction with Automatic
Direction Finding (ADF) equipment, provide a DF function. The radios can be operated in plain mode,
anti-jam (Have Quick 1 or 2) mode, secure mode (KY-58), or relay mode; in either normal or secure
voice. An additional function is generation by either COMM 1 or COMM 2 of a 1,020 hz tone (AM) or
a 15 hz tone (FM) which serve as audio cues to the pilot. The COMM 1 and COMM 2 radios operate
in the frequency bands listed below. When enabled, integral guard receivers continuously monitor the
emergency guard channels for each frequency band.
Frequency Band (MHz) Modulation Guard Channel (MHz)
30 to 87.995
*108 to 135.995
136 to 155.995
156 to 173.995
225 to 399.975
FM
AM
AM/FM
FM
AM/FM
121.5
−−−
243.0 (AM)
*Cannot transmit on 108 thru 117.995 MHz
Transmission and reception of amplitude and frequency modulated signals (AM and FM) occur in
the respective frequency bands on spaced channels of 5 kHz. Twenty channels in the 30 to 400 MHz
band may be pre-set to assigned frequencies.
23.2.1 VHF/UHF Controls and Indicators. The COMM 1 and COMM 2 are operated by
1. controls on the UFCD,
2. controls on the ICS,
3. COMM 1 and 2 transmit switches on the right (inboard) throttle grip,
4. in the F/A-18F, COMM 1 and 2 transmit switches on the left and right rear cockpit rudder pedals
respectively.
23.2.1.1 UFCD - Up Front Control Display. The UFCD is on the main instrument panel above the
multipurpose color display (MPCD). The rear cockpit UFCD is on the MIP below the MPCD. See
figure 23-1 for top level CNI format. Controls on the UFCD for COMM 1 and 2 are:
1. VOL (volume) 1 and 2 COMM control knobs,
2. COMM 1 and 2 channel select knobs,
A1-F18EA-NFM-000
VII-23-2 ORIGINAL
3. keypad options and scratchpad display,
4. touch options/displays,
5. ID (identification) button,
6. OFF/BRT (brightness) control knob,
7. CONT (contrast) control knob,
8. SYM (symbology) brightness control knob,
9. EM CON (emission control) pushbutton switch.
23.2.1.1.1 COMM 1 and 2 VOL (Volume) Control Knobs. Operation of the VOL control knobs is not
dependent on the operation of the MPCD or the UFCD. Each VOL control knob controls power
(on/off) and audio level to the associated COMM 1 and 2 radio. Tick marks on the VOL control knobs
and the face of the UFCD are used to indicate OFF for the associated COMM 1 or 2 radio. Clockwise
rotation from OFF applies power to the associated radio and continued rotation increases the audio
level. On F/A-18F aircraft, the cockpit and rear cockpit VOL control knobs must both be OFF to
remove power from the associated radio. When a radio is powered (on), the associated COMM radio
(unlabeled) touch option/display is corner highlighted (upper left corner).
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本文链接地址：
NATOPS Flight Manual 飞行手册 2(73)
