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Numbers ending in zero are valid entries for both the Low Altitude
Warning and COMM 1. Due to the close proximity of the COMM 1 and
RALT options, it is possible to inadvertently change the low altitude
warning setting for the radar altimeter when attempting to use COMM 1
fast data entry.
A barometric low altitude and secondary radar low altitude warning function are enabled by entering
the appropriate altitude, up to a maximum of 25,000 (BARO) and 5,000 (RADAR), on the UFCD. The
barometric low altitude and secondary radar low altitude warning provide a single voice alert warning
ªALTITUDE, ALTITUDEº when the aircraft descends through the selected altitude. Refer to Part VII
for information on entering altitude. The barometric low altitude warning function does not affect the
operation of the radar altimeter low altitude warning function.
2.18.5.4 UFCD Controls. A description of UFCD switches follows. Refer to Part VII for operating
instructions for CNI equipment.
2.18.5.4.1 COMM 1 and 2 Channel Knobs. The COMM 1 and 2 channel knobs permit independent
selection of up to 20 preset channels on radios 1 and 2. Guard (G), Manual (M), Ship Maritime (S), and
SINCGARS Cue (C) channels are also available on the continuously rotatable knobs.
2.18.5.4.2 COMM VOL Knobs. The VOL knobs independently control radio volume for COMM 1 and
2. The OFF position (detent) is at the full counterclockwise position. In the F/A-18F, both sets of knobs
A1-F18EA-NFM-000
I-2-149 ORIGINAL
must be in the OFF position for power to be removed from the radios. When a radio is powered, the
respective COMM option is corner highlighted. When a radio is actively receiving, a (half intensity)
highlight is shown on the upper half of the COMM option (figure 2-47).
2.18.5.4.3 ID (IDENT) Pushbutton. The ID pushbutton commands an IFF identification/position
squawk (IDENT), for modes 1, 2, and 3 (if enabled).
2.18.5.4.4 UFCD BRT Knob. The BRT knob adjusts the overall brightness of the UFCD display, both
symbology and video. Turning the knob counterclockwise to the OFF position removes power from the
UFCD.
2.18.5.4.5 UFCD CONT Knob. The CONT knob adjusts video contrast on the UFCD.
2.18.5.4.6 UFCD SYM Knob. The SYM knob is used to adjust the brightness of the UFCD symbology
without affecting the brightness of the UFCD video.
2.18.5.4.7 EMCON Pushbutton. If the UFCD is displaying a DDI format the letters E M C O N are
displayed in the left side option boxes. If the UFCD is displaying the top level CNI format, EMCON
is displayed in the scratch pad.
2.18.6 SDC - Signal Data Computer. The signal data computer (SDC) operates under mission
computer control and records aircraft fatigue strain data, engine parameters when out of tolerance
conditions occur, fuel information, and aircraft and target parameters when targets are designated and
weapons are delivered. It includes fuel transfer controls and gaging capabilities, incorporates ground
support equipment fuel transfer and gaging fault isolation functions, and provides interface for
multiple sensors and controls. It provides analog-to-digital conversion of aircraft parameters. In
addition, BIT fail indications are stored in the SDC to be displayed by the maintenance status panel
(MSP) for readout by maintenance personnel after the flight, or on the EFD for readout during the
flight.
The RESET SDC option is available from the SUPT MENU/FUEL format. This option is used to
reset the SDC by momentarily removing power. When selected, the RESET portion of the option
legend is boxed, and remains boxed until the SDC reestablishes AVMUX communication or 15 seconds
after the option was selected. The RESET SDC option is removed from the FUEL format if the CSC
is not communicating on the AVMUX.
2.18.7 CVRS - Cockpit Video Recording System. CVRS contains two video tape recorders, a HUD
camera, and two ²over-the-shoulder² cameras. The system has the capability to record either DDI, the
MPCD, the UFCD, the AMPCD, the AUFCD, or the HUD (in color), but in limited combinations.
Headset audio is also recorded as long as the KY-58 encryption function is inactive. The switches used
to operate CVRS are located on the VIDEO RECORD panel in each cockpit.
A switch has been added to the HUD video record panel so that helmet mounted display (HMD)
(video supplied by the HMD camera) or LDDI can be selected. See figure 2-60, HMD Controls, for
modified video record panels.
2.18.7.1 CVRS Video Tape Recorders. The two CVRS video tape recorders (VTRs) are located
behind the ejection seat in the F/A-18E and behind the rear cockpit ejection seat in the F/A-18F. VTR
1 records video of the L or RDDI from either over-the-shoulder camera or of the AUFCD or AMPCD
　
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本文鏈接地址：NATOPS Flight Manual 飛行手冊 1(108)