F16C/D (BLOCKS 50 AND 52+). FLIGHT MANUAL (15 OCTOBER 2002) - page 26

T.O. GR1F16CJ1

1192

UPPER IFF/UHF

VHF AM

THREAT WARNING

AND ECM

THREAT WARNING

RADAR

UPPER TACAN

THREAT WARNING

THREAT WARNING

LOWER TACAN

MARKER BEACON

RADAR ALTIMETER

GLIDE SLOPE/LOCALIZER

LOWER IFF/UHF

Antenna Locations (Typical)

GR1F-16CJ-1-0080A37

GLOBAL POSITIONING SYSTEM

VHF FM

IFF INTERROGATOR

IFF ARRAY

ECM

ECM

(RIGHT SIDE)

ECM

ECM

Figure 181.

T.O. GR1F16CJ1

Change 11193

A double beep indicates the date code has been

entered. When using MWOD, the current date must be

set into channel 1 prior to receiving TOD or the current

date must be part of the received TOD message.

Without date information, the radio cannot select the

current WOD, and a steady tone results when entering

AJ mode. After entering WOD(s) and/or setting

operational date, select 220.00, preset channel 20, and

depress PRESET button to enter the verify/operate

mode. The UHF radio is inoperative when in any mode

other than verify/operate. MWOD capability can be

determined by selecting 220.000, channel 20 preset

mode, and pressing the 

PX II

 PRESET, 

PX III

 LOAD

(MLOAD is displayed) button. Select channel 19; if

one or two beeps are heard, the radio is not equipped

with MWOD capability. If no beep is heard, the radio

has MWOD capability. Verify a WOD for a particular

date is loaded by selecting channel 20, manual mode,

and by selecting the date to be verified with the

manual frequency knobs. Select CHAN 19, then

CHAN 20. A single beep signifies that a WOD for that

date is present. The single WOD entry procedure

remains valid for radios that are equipped for MWOD

operation. Preset channel 20 is reserved for MWOD

mode selection.

Automatic MWOD Loading 

PX III

The HAVE QUICK II PHASE 2 radio allows

automatic MWOD loading with a KYK13/TSEC fill

device. Insure radio power is on. Lift access door to

reveal FILL connector and insure mode switch on fill

device is in OFF position. Install fill device in FILL

connector and place mode switch on fill device to ON.

Frequency/status display displays FILL. Select

desired channel on fill device and depress LOAD

button. A series of beeps is heard and the

frequency/status display displays WOD OK if WOD is

valid and successfully received. If WOD is invalid or

unsuccessfully received, the frequency/status display

displays BAD. If BAD is displayed, the fill device

must be disconnected and reloaded and the loading

procedure must be repeated. If WOD OK is displayed,

repeat the loading procedure for subsequent

channels.

Insure WOD OK is displayed after each WOD is

loaded. The CHAN display displays CHAN 1.

Operational date may be loaded by positioning the

frequency switches to OP DATE and setting the

TTONE switch to TONE. After all WOD's are loaded,

place mode switch on fill device to OFF and

disconnect FILL connector. Close access door. Radio

returns to previous mode and the frequency/status

display displays previous settings.

TimeofDay (TOD) Transmission

The TOD entry is normally entered before flight, but

it is possible to enter it in flight. It is possible to

transmit timing information in both normal and AJ

modes by momentarily pressing the 

PX II

 TONE

button, 

PX III

 TTONE switch. In the normal mode, a

complete TOD message is transmitted, while in the

AJ mode, only an abbreviated time update is

transmitted. A time transmission allows a time

update if one radio has drifted out of synchronization.

TimeofDay (TOD) Reception 

PX III

The HAVE QUICK radio accepts the first TOD that is

received after power up. When the EGI is first powered

on, the EGI TOD signal will likely not be synchronized

with the GPS constellation universal time coordinated

(UTC) time since 3045 seconds are typically required

for satellite acquisition. To insure that the HAVE

QUICK radio is using a synchronized UTC TOD,

another TOD should be manually received after an

adequate GPS track has been achieved. The best

indication of an adequate GPS track is to access the

NAV STATUS DED page (LIST 4) and verify the

horizontal accuracy status. A GPS HIGH estimated

horizontal accuracy status (or 300 feet if selected

accuracy display format is in feet) should insure that

the EGI TOD signal is synchronized with UTC time.

Alternatively, verify that four satellites are being

tracked by the EGI by confirming that a 4 is displayed

for EGI miscellaneous parameter (EGIM) 200.

TimeofDay (TOD) Reception 

PX II

Reception is possible in both normal and AJ modes.

The radio automatically accepts the first TOD

message received after the radio is turned on.

Subsequent messages are ignored unless the T

position is selected  with  the A32T knob. The radio

then accepts the next TOD update in either normal or

AJ mode, provided the TOD update arrives within 1

minute of the time the T position has been selected.

To receive time in the normal mode, position the

A32T knob to T and return to a normal channel in

either manual or preset mode. To receive a time

update in AJ mode, rotate the A32T knob to the T

position and then back to the A position. A TOD

update (time tick) can now be received on the selected

AJ net for 1 minute.

T.O. GR1F16CJ1

1194Change 1

Net Number

After TOD and WOD are entered, any valid AJ net

number can be selected by using the manual

frequency knobs.

Antijamming (AJ) Mode Operation

An intermittent tone is heard in the headset if an

invalid AJ net is selected. A steady tone is heard if

TOD was not received or if a WOD for the current date

was not entered.

In the AJ mode, the radio can receive and process two

simultaneous transmissions on the same net.

Conferencing is controlled by the WOD loaded in

channel 19. If the WOD in channel 19 ends with 00 or

50, conferencing is possible. If the WOD in channel 19

ends with 25 or 75, conferencing is disabled.

If the function knob is set to BOTH and guard channel

jamming is encountered, switching the function knob

to MAIN negates the jamming.

HAVE QUICK (HQ) UHF RADIO

The UHF radio provides lineofsight communica

tions. UHF transmissions are made by holding the

UHF VHF IFF transmit switch on the throttle to the

UHF position. Frequencies range from

225.000399.975 MHz. The guard receiver monitors

the guard frequency of 243.0 MHz. Power, volume,

squelch, guard, and tone controls are located on

AUDIO 1 control panel. HAVE QUICK mode selection

and other UHF functions are controlled by the

upfront controls.

Twenty or 19 channels may be preset using upfront or

backup controls, respectively. The UHF radio is

powered by battery bus No. 1 and requires power from

emergency ac bus No. 2 and emergency dc bus No. 2

for operation on upfront control.

Operation of the UHF Radio on Upfront Controls

To change UHF preset channels on the CNI page,

refer to CNI READOUT/DED PAGE SUMMARY, this

section.

The UHF page is selected by depressing the COM 1

override button on the upfront controls.

Functions available on the UHF page are:

D

Changing preset channels and manual frequen

cies.

D

Changing between MAIN and BOTH functions.

D

Channelizing frequencies.

D

Changing bandwidth.

D

Updating TOD and selecting AJ mode.

The UHF page displays its data on five lines. The first

line contains information about the radio mode and

transmission status. The radio mode displays

UHFTOD for normal operation; HQTOD is

displayed when the AJ mode is selected. Either label

is highlighted when the radio is keyed. The

transmission status is displayed as OFF, MAIN, or

BOTH. OFF is displayed when power is turned off

with the COMM 1 power knob.

PX III

 Following UFC power cycles with weighton

wheels, BOTH is automatically displayed; when

airborne, the previously selected mode (MAIN or

BOTH) is retained.

MAIN is displayed when transmissions are received

only on the main UHF receiver; BOTH is displayed

when transmissions are received on both the main

and guard receivers. The second line displays the

active frequency or preset channel number. Line

three displays the data entry scratchpad. The fourth

line displays the label PRE and a preset channel

number, increment and decrement symbols, and the

label TOD.

Line five displays the frequency associated with the

preset channel and selected bandwidth, which is

displayed as either narrow band (NB) or wide band

(WB). 

PX III

 At UFC power up and weightonwheels,

NB is automatically selected. 

PX III

 The CNI

readout/DED page summary shows the radio mode

UHF, transmission status (BOTH), active preset

channel number (10), the scratchpad frequency

(*235.00*), a preset channel (PRE 10), and label

(TOD), the frequency associated with the preset

number in line four (226.00), and radio bandwidth

(NB). 

PX II

 The CNI readout/DED page summary

shows the radio mode (UHFTOD), transmission

status (MAIN), active preset channel number (10),

the scratchpad frequency (*235.00*), a preset

channel (PRE 10), the frequency associated with the

preset channel in line four (226.00), and radio

bandwidth (NB).

T.O. GR1F16CJ1

Change 11195

Changes on the UHF page are made by the use of

asterisks and the keyboard, the increment/decrement

switch, or the SEQ position of the DCS, depending on

the nature of the change. Asterisks (*235.00*) are

moved by up/down movement of the DCS through the

following locations: scratchpad, TOD, bandwidth

(UHF mode only), radio mode, preset channel, preset

channel frequency designation, and back to the

scratchpad. Information enclosed by the asterisks

may be changed. With asterisks properly positioned,

the radio mode and bandwidth are changed by

depressing any ICP/IKP key (19). Channels/frequen

cies are changed by placing the asterisks over the

scratchpad, keying in the desired channel/frequency,

and then depressing the ENTR button. If one or two

digits are entered, a preset channel is selected; if

three to five digits are entered, a frequency is

selected. Extra numbers over five digits are ignored.

When the ENTR button is depressed, the channel/fre

quency changes and the DED reverts to the

overridden page. (If the COM 1 override button is

depressed and the ENTR button is depressed without

keying new digits in the scratchpad, the channel or

frequency that was previously in the scratchpad is

selected.) The preset channel is changed by using

either the increment/decrement switch (note the

up/down triangles next to the preset channel number)

or by use of the asterisks and keyboard as previously

described. As the preset channel is changed, its

associated frequency also changes. Changing

between MAIN and BOTH functions can only be

accomplished by positioning the DCS to SEQ. This

action can be accomplished independently of asterisk

position. For HAVE QUICK selection, enter 0 in the

scratchpad.
HAVE QUICK primary page displays data on five

lines. The first line displays HQ radio mode with

submode characters (HQTNG or HQCBT). 

PX III

The receiver mode (BOTH, MAIN) is displayed on

the first line and can be changed by positioning the

DCS to SEQ. 

PX II

 The net types for training

submode are displayed TNET or FMT; combat

submode net types are A/B, NATO, or NNTO. Line

two displays 

PX III

 the active net number/preset

and the net type, 

PX II

 the active net number/pre

set. When using combat HAVE QUICK frequencies,

the first three digits indicate the HAVE QUICK net

number. The last two digits indicate the combat

submode where 00 corresponds to A/B, 25 to NATO,

and 50 to NNTO. For example, A32.425 is combat

net 324, submode NATO.

Line three displays data entry scratchpad, where new

active net numbers or preset numbers are keyed in

and entered. Changing the active preset via the

scratchpad also sets the preset number to the same

value. Line four displays PRE mnemonic, preset

channel number and TOD label. The system supports

entry/storage of 20 net numbers in preset locations.

The fifth line displays the preset net number.

Asterisks are moved by up/down movement of the

DCS through the following locations: scratchpad,

TOD, HQ submode, preset channel number, preset

net, and back to the scratchpad.

Special considerations should be given in instances

where the features of the HAVE QUICK radio are

used. The HAVE QUICK radio operates in two

modes:UHF, for the normal mode using a single

UHF frequency, and HQ, for the AJ mode using

pseudorandom frequencyhopping techniques.

Before the AJ mode can be used a WOD must be

loaded, a TOD must be received, and a valid net must

be selected. The radio automatically accepts the first

TOD message received after the radio is turned on.

After the initial TOD is received an updated TOD can

be received by placing the asterisks around the TOD

label on the UHF page and then depressing the ENTR

or MSEL button. The asterisks autostep back to the

scratchpad and TOD is highlighted. A TOD update

must be received within 1 minute of depressing the

ENTR or MSEL button. TOD label dehighlights after

1 minute or when a scratchpad operation is

performed. If the TOD label is highlighted when an

UFC power cycle or an autorestart occurs TOD label

is dehighlighted upon power up. If the TOD label is

highlighted and the COM 1 HQ page is exited (for a

reason other than a scratchpad autoexit operation),

the TOD label remains highlighted on the COM 1 HQ

page (if the page is reentered before the 1 minute time

delay has timed out). After the TOD update and with

proper WOD entries on the UHF backup control

panel, the AJ mode is accessed by entering zero on the

scratchpad which gives the ability to switch between

HQ and UHF modes. There is no autoexit when zero

is entered on the scratchpad. When HQ is selected,

the bandwidth window is blanked from the page.

Nets, consisting of three digits, are entered and

changed just as operating frequencies and can be

preentered in preset locations.

T.O. GR1F16CJ1

1196

UHF Radio Backup Control Panel

Refer to figure 182. The UHF radio backup control

panel, located on the left console, controls the UHF

radio, when required, by positioning the 

PX II

 CNI

knob to BACKUP (AUX COMM panel), 

PX III

 C & I

knob to BACKUP (IFF control panel. When BACKUP

is selected, the controls on the UHF radio backup

control panel have the following functions:

Function Knob

Functions are:

D

OFF - Power off.

D

MAIN - With COMM 1 power switch on, UHF radio

operates on selected frequency.

D

BOTH - Normal operation plus receiving on guard

frequency.

D

ADF - Not operational.

Mode Knob 

PX II

Functions are:

D

MANUAL - UHF frequency is selected by manually

setting the five frequency knobs.

D

PRESET - UHF frequency is determined by the

CHAN knob.

D

GUARD - The main receiver and transmitter are

automatically tuned to the guard frequency and the

guard receiver is disabled.

Mode Knob 

PX III

Functions are:

D

MNL - UHF frequency is selected by manually

setting the five frequency knobs.

D

PRESET - UHF frequency is determined by the

CHAN knob.

D

GRD - The main receiver and transmitter are

automatically tuned to the guard frequency and the

guard receiver is disabled.

GR1F-16CJ-1-0081A37

2. FILL Connector

3. CHAN Display

4. Frequency/Status Display

5. CHAN Knob

6. STATUS Button

7. Manual Frequency Knobs

8. Mode Knob

9. SQUELCH Switch

10. VOL Knob (Inactive)

11. T-TONE Switch

12. TONE Button

13. Function Knob

14. A-3-2 Knob

15. A-3-2-T Knob

16. TEST DISPLAY Button

17. LOAD Button

PX III

PX II

2

3 4 5

6

7

8

9

10

11

13

14

16

17

12

10

7

15

1. ZERO Switch

UHF Radio Backup Control Panel

18. Preset Channel Card and Access Door

1

(Typical)

C DF

18

13

18

5

9

8

Figure 182.

T.O. GR1F16CJ1

Change 11197

CHAN Knob

The CHAN knob permits the selection of 1 of 19

(MWOD) or 14 (single WOD) preset frequencies

(channels 119) with the mode knob at PRESET and

the 

PX II

 A32T, 

PX III

 A32 knob in either 2 or 3.

Preset channels used for WOD storage cannot be used

as preset channels for normal radio operation.

Frequencies set for each channel can be manually

written on a channel frequency card located on the

access door. Preset channel frequencies are set (or

changed) as follows:

D

Function knob - MAIN or BOTH.

D

Mode knob - PRESET.

D

Manual frequency knobs - Set to desired frequency.

D

CHAN knob - Set to desired channel.

D

Lift access door.

D

Depress 

PX II

 PRESET, 

PX III

 LOAD button under

access door.

Manual Frequency Knobs

The five manual frequency knobs allow manual

selection of frequencies in steps of 0.025 MHz from

225.000399.975 MHz.

A32T Knob 

PX II

Functions are:

D

A - Selects AJ mode.

D

3 - Allows manual selection of frequencies.

D

2 - Allows manual selection of frequencies.

D

T - Momentary position which enables the radio to

accept a new TOD for up to 1 minute after selection.

Also used in conjunction with the TONE button for

emergency startup of the TOD clock when TOD is

not available from external sources.

A32 Knob 

PX III

Functions are:

D

A - Selects AJ mode.

D

3 - Allows manual selection of frequencies.

D

2 - Allows manual selection of frequencies.

VOL Knob

The VOL knob is nonfunctional. Volume can only be

controlled by the COMM 1 (UHF) power knob.

SQUELCH Switch

Functions are:

D

ON - Enables squelch circuit which helps to

eliminate background noise in normal reception.

D

OFF - Disables squelch circuit to permit reception

of a weak signal.

TONE Button 

PX II

Depressing the TONE button in normal or AJ mode

interrupts reception and transmits a tone signal and

TOD for HQ on the selected frequency. Simultaneous

ly pressing the TONE button in conjunction with the

A32T knob in T position starts the emergency

startup of the TOD clock. Pressing the TONE button

with channels 1, 14, 1520 selected in manual mode

enters MWOD data when in load mode. Pressing the

TONE button in erase mode erases all MWOD data.

CHAN Display 

PX III

The CHAN display displays selected channel number

when mode knob is positioned to PRESET. If in

MLOAD or FMT.CNG operating mode, the selected

memory location is displayed. Display is blank when

the mode knob is positioned to MANUAL or GUARD.

Frequency/Status Display 

PX III

The frequency/status display displays several condi

tions of radio operation. Four programming modes

control AJ operation. These modes are VER/OP,

MLOAD, ERASE, and FMT.CHG. These modes are

accessed by placing the CHAN knob to 20, rotating

the mode knob to PRESET, and keying in the

appropriate frequency for the applicable mode.

Frequencies are 220.000 for VER/OP, 220.025 for M

LOAD, 220.050 for ERASE, and 220.075 for

FMT.CHG. VER/OP is displayed when the STATUS

button is depressed. MLOAD is displayed when

MWOD's are loaded manually. ERASE is displayed

when WOD's are erased by depressing the TONE

button or by selecting 0. FMT.CHG is displayed when

frequency management training net frequencies are

changed by selecting a channel with the mode knob

and changing frequencies with the manual frequency

knobs.

Other displays are:

D

FILL - A fill device is connected to the FILL

connector to load MWOD's.

T.O. GR1F16CJ1

1198

D

BAD - A WOD was unsuccessfully received.

D

WOD OK - A correct WOD has been successfully

received.

STATUS Button 

PX III

When the STATUS button is depressed, selected

preset channels and manual frequencies may be

verified on proper displays.

TTONE Switch 

PX III

Functions are:

D

T - Momentary position which enables the radio to

accept a new TOD for up to 1 minute after selection.

Also used in conjunction with the TEST DISPLAY

button for emergency startup of the TOD clock

when TOD is not available from external sources.

D

TONE - In normal or AJ mode, the TONE position

interrupts reception and transmits a tone signal

and TOD for HQ on the selected frequency.

Selecting TONE with channels 1, 14, 1520 selected

in manual mode enters MWOD data when in LOAD

mode. Selecting TONE when in ERASE mode

erases all MWOD data.

TEST DISPLAY Button 

PX III

Depressing the TEST DISPLAY button illuminates

all segments of the frequency/status display and the

CHAN display for a functional test.

ZERO Switch 

PX III

Depressing the ZERO switch erases all MWOD data

regardless of radio switch/knob positions or radio

operating mode.

FILL Connector 

PX III

The FILL connector connects fill device to the radio.

The FILL connector allows automatic MWOD

loading.

VHF RADIO

The VHF radio provides lineofsight voice commu

nication. VHF transmissions are made by holding the

UHF VHF IFF transmit switch on the throttle to the

VHF position. Transmission and reception are

available for AM from 116.000151.975 MHz and for

FM from 30.00087.975 MHz. Only reception is

available from 108.000115.975 MHz. Twenty chan

nels may be preset. Operation may be either on

narrow band or wide band. Narrow band is used for

all normal operations. Power, volume, squelch, guard,

and tone controls for the VHF radio are located on the

AUDIO 1 control panel. Other VHF radio functions

are controlled by the upfront controls. There are no

backup controls. In the event of certain failures of the

upfront controls, the VHF radio may remain on the

last frequency set prior to the failure. The VHF radio

is powered by 

PX III

 emergency dc bus no. 1, 

PX II

 the

nonessential dc bus.

Operation of the VHF Radio on Upfront Controls

To change VHF preset channels on the CNI page,

refer to CNI READOUT/DED PAGE SUMMARY, this

section.

The VHF page is selected by depressing the COM 2

override button on the upfront controls. Functions

available on the VHF page are:

D

Changing preset channels and manual frequencies.

D

Channelizing frequencies.

D

Changing bandwidth.

The VHF page displays its data on five lines. The first

line displays information about secure voice, the VHF

radio mode and status. The radio mode always

displays VHF for normal operation. The radio status

is displayed as ON or OFF; however, the ON and OFF

functions can only be controlled via the AUDIO 1

control panel. The second line displays active

frequency or preset channel. Line three displays the

data entry scratchpad, which is a fivedigit area

highlighted by two asterisks. The scratchpad is used

to change either channels or manual or active

frequencies, and it displays the channel/frequency

not currently being used. When the VHF page is first

selected, the scratchpad is displayed in one of two

ways:(1) If the radio is operating on manual

frequency, the scratchpad displays preset channel

entry. (2) If the radio is operating on preset channels,

the scratchpad displays manual or active frequency

entry. The fourth line contains the label PRE and a

preset channel number. The label PRE is highlighted

when the radio is tuned to a preset channel. Line

five displays the frequency associated with the

preset channel. The fifth line also shows the

selected bandwidth, which is displayed as either

narrow band (NB) or wide band (WB). The CNI

readout/DED page summary displays the radio

mode (VHF), radio power status (ON), active preset

channel number (12), the scratchpad frequency

(*135.00*), a preset channel (PRE 12), the

frequency associated with the preset channel in line

four (126.00), and bandwidth (NB).

T.O. GR1F16CJ1

1199

Changes on the VHF page are made by use of the

asterisks and the keyboard or the increment/decre

ment switch, depending on the change. Asterisks

(*135.00*) are moved by up/down movement of the

DCS through the following locations: scratchpad,

bandwidth, manual frequency, preset channel

number, preset channel frequency designation, and

back to the scratchpad. Information enclosed with

asterisks may be changed as described under

OPERATION OF THE UHF RADIO ON UPFRONT

CONTROLS, this section. The preset channel may

be changed by using either the increment/decre

ment switch (note the up/down triangles next to the

preset channel number) or by use of the asterisks

and the keyboard.

When operating on guard frequency, AM or FM

selections are available on the VHF page. To switch

from AM to FM or FM to AM, depress any ICP/IKP

key (19).

ZEROIZE SWITCH

Refer to figure 13. The ZEROIZE switch is a guarded

threeposition toggle switch.

When positioned to OFP, coded electronic information

associated with the following equipment is purged:

D

DTC.

D

PX II

 FCC.

D

PX III

 MMC.

D

GPS.

D

AIFF mode 4.

D

PX III

 IDM.

D

PDG.

D

RWR.

When positioned to DATA, coded electronic

information associated with the following equipment

is purged:

D

DTC.

D

GPS.

D

AIFF mode 4.

D

PX III

 MMC.

D

PX III

 IDM.

Seat ejection also automatically performs an escape

zeroize operation; refer to EJECTION SEAT

OPERATION, this section.

NAVIGATION SYSTEMS

EMBEDDED GLOBAL POSITIONING AND

INERTIAL NAVIGATION SET (EGI) 

PX III

The EGI is the prime sensor for aircraft velocity,

attitude, heading, position, and is a source of

navigation information. The EGI consists of an

embedded GPS receiver (EGR) and ring laser gyro

inertial navigation unit.

The EGR is a 12 channel receiver for allinview

tracking. The EGI provides GPSonly and free

inertial navigation solutions.

The EGI, in conjunction with the UFC, CADC, and

MMC, provides:

D

Acceleration.

D

Velocity.

D

Position.

D

Attitude.

D

Magnetic and true heading.

D

Altitude.

D

Angular rates.

D

Universal time coordinated (UTC) and time tags.

D

Instantaneous and maximum g data for display in

the HUD.

The EGI generates signals which drive the aircraft

attitude direction indicator (ADI) and horizontal

situation indicator (HSI).

For a detailed system description, refer to T.O.

GR1F16CJ3411.