RWR Crash Course

RWR Crash Course

BAE Systems (Loral) AN/ALR-56M

C/D band (0.5-2 GHz) and E through J band (2 to 20 GHz)

Direction-finding accuracy: 15 degrees (E through J band); omnidirectional (C/D band)

Operations After boot up I indication is in middle of scope, after while it changes to WO indication in middle of

scope. After initial BIT finishes indications disappear.

System runs periodical self tests in background. Pilot can initiate manual Self Test.

POWER Button Power ups system

ALTITUDE Button Selects low alt thread threat table, L indication in middle of scope

SEARCH Button Shows search (S symbol) radars, S indication in middle of scope

ACT/PWR Lights Indicates system power and activity on scope

TGT SEP Button Separates overlapping contacts on scope

SYS TEST Button Initiates self test

UNKNOWN Button Shows unknown contacts, U symbol flashes when there is filtered out unknown contacts

MODE Button Selects priority mode

LAUNCH Button Indicates launch, initiates launch light test when pressed

HANDOFF Button Select highest priority target for composite audio, held for selection browsing

Self Test Self test shows two test screens.

After that if any fault is detected shows faults list screen and reverts to normal display with F in middle

indicating fault.

Buttons and Light Mapping Mappings are not changed from default ones.

Raytheon (Litton) AN/ALR-69(V)

C/D band (0.5-2 GHz) and E through J band (2 to 20 GHz)


Operations After boot up test patter is on scope, after while F appears in middle of scope for a moment. After initial

BIT finishes indications disappear.

System runs periodical self tests in background. Pilot can initiate manual Self Test.


ALTITUDE Button Selects low alt thread threat table, L indication in middle of scope

SEARCH Button Shows search (S symbol) radars, S indication in middle of scope

ACT/PWR Lights Indicates system power and activity on scope

TGT SEP Button Separates overlapping contacts on scope

SYS TEST Button Initiates self test, if pressed and within 0.5 sec UNKNOWN button is pressed then it toggles naval mode

UNKNOWN Button Shows unknown contacts, U symbol flashes when there is filtered out unknown contacts

MODE Button Selects priority mode

LAUNCH Button Indicates launch, initiates launch light test when pressed

HANDOFF Button Select highest priority target for composite audio, held for selection browsing

Naval mode indication

Self Test Self test shows two test screens. If any fault is detected it will be indicated on second test screen with

flashing BAD text. Scope reverts to normal display with F in middle indicating fault.


Raytheon (Litton) AN/ALR-93(V)1

C/D-band (0.5-2 GHz) and E through J band (2-20 GHz)


Operations System runs periodical self tests in background. Pilot can initiate manual Self Test.

On the top of scope are indications of CMDS mode and ECM state. On the bottom is possible ECM

interference indications (repeated on radar/TFR mfd and HUD). On the right side is ECM unavailable

indications.


BIT Button Initiates self test, if fault detected FAULT light will be on

LIB SET Button Toggles normal and training libraries, normal one doesn’t contain search radars

PRIORITY Button Selects priority mode

Symbols

Symbol Codes

For AAA, SEARCH, UNKNOWN, CW Emitters

PRI value(ms) Symbol (first character of unknown emitter symbol)

200 0

201 - 300 1

301 - 400 2

401 - 500 3

501 - 700 4

701 - 900 5

901 - 1200 6

1201 - 1500 7

1501 - 2000 8

2001 - 10000 9

Band Symbol

E 1

F 1

G 2

H 2

I 3

J 4

anything else 1

Buttons and Light Mapping

Thales Airborne Systems Carapace

C through K band (0.5 to 40 GHz)

Direction-finding accuracy: 1 degree (C through K band);


After power up, female voice informs about faults. Same voice is present on manual Self Test. Small FAIL

light indicates fault as well. This can be cleared only by power off/on cycle.

FAIL Light Indicates fault

EXP Button Separates overlapping contacts on scope, double click within 1ses initiates Self Test indicated by BIT light

PRIO Button Selects priority mode

MODE Button Toggles libraries, when AI indicator is on search radars are included

EDS AUTO Light Indicates CMDS AUTO MODE

MAN ON Light Indicates CMDS MANUAL MODE

PWR Button Power ups system

Symbols


Raytheon (Litton) AN/ALR-67(V)3

E through K band (2 to 40 GHz)

Direction-finding accuracy: 15 degrees (E through K band); omnidirectional (C/D band)


ENABLE OFFSET Button Select highest priority target for composite audio, held for selection browsing

ENABLE SPECIAL Button Separates overlapping contacts on scope

LIMIT DISPLAY Button Selects priority mode



Elisra SPS-1000V-5

Bands 0.5 - 18 GHz (band C to J)

Direction-finding accuracy: 15 degrees (C through J band)

Operations Exactly same as ALR-69 minus test mode display


Documents

RWR Crash Course