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Flashcards in Tigress Deck (55):
0

Common crypto

INIT
PRC-137

1

Black keys

127

2

Secret parts to it

137f/g, hard drive, SKL, gobook, cf52

3

Slow rapid slow flash

Bad hub

4

Check crypto

COMSEC
JT

5

Roll of dice

Pro
Sec
Tertiary

6

Max messages

40

7

Max data for messages

256kb

8

Max message size

60kbps

9

Radio constantly tuning

DV on
Antenna not connected

10

Why no net entry

Antenna
Time
Battery
Comsec

11

Max OS to BS

254

12

SOPs OS to BS

20

13

Message type

Free text
Format

14

EPOCH times

5
15
30
60 mins
4 hrs

15

Operational freq

2-3hz

16

Gen frequency

1.6 - 60mhz

17

Gobook power

6hrs without ba5590
30hrs with

18

137f battery life

52 hrs
90 day scheds

19

Working range

10000km

20

Planning range

5000km

21

Power

1mw
10W

22

137g power

125W

23

Weight

12lbs

24

EKMS

Electronic key management system

25

Full name of 137f/g BS

An/prc137f/g
An/trq43

26

OS
BS

OS 137F
Bs 137G/TRQ 43

27

Voice

1800km PT
20km CT

28

EPOCH

Period of time

29

LPI
LPD

Low probability of interception
Frequency hopping
Low probability of detection
Lowest power

30

ALE

Automatic link establishment

31

ARQ

Automatic repeat request

32

Security for:
Crypto
Physical
EW

No paper tape
No need to carry crypto
Automatic crypto update (OTAR)

Passcode entry
Tamper proof case
OTAZ
Operator zeroise

LPI
LPD
Data v voice

33

5 eyes

UKSF
USSOF
Canadian SOF
NZ SF
OZ SF

34

What's the sleep function

In ALE mode
Autonomous comms
Autonomous freq management

35

ALE process

Net entry process

36

LPD hides in the

Noise floor

37

Voice crypto

Ky-57 hf
Ky-99 UHF

38

Batteries used

BA5590

39

Green led

Rapid flash-no crypto
Slow flash-RX
Solid on-TX
Slow-rapid-slow-bad hub

40

Red led on battery box

Solid on-not RXimg power from BA5590
Flashing-AA's need replaced

41

What's in battery box

4xAA

42

Operating temps

-40 to 70

43

Types of key

Transfer key-13 DTD
Transfer key-13-PRC137
Initialisation file-13 INIT
Network files-13NTWK
Interop file-13-KY99/KY57

44

KEK
TSK
TEK
TRKEK

Key encryption key (wraps/unwraps keys)
Transmission security key (generate TRANSEC data)
Traffic encryption key (encrypts/decrypts message)
Transfer key encryption key (transfers KEKS)

45

OS SOPs

Secure dig voice
Clear analogue voice
MIL STD ALE

46

Pri
Sec
Ter

Pri-net entry
Sec-priority
Ter-routine

47

INIT file

KEK-12
TSK-1
NETEK-1

48

NETWORK file for G only

TEK-127

49

Tigress protected as

Secret

50

When RXed a message

Check
Print x2
1 in first site file
1 in call sign file
Details loged

51

With TXed message

Check
Print 2x copies
1 in out file
Attach 1 delivery
Details logged

52

In/out

In 001 from OS
Out 501 from BS

53

Message format

001 r 201230z feb21 FM k10 to 99

54

UHF why

Data at night
Voice

You'd need a DMC 120 and hand set