Tigress Flashcards
Black keys
127
Common crypto
INIT
PRC-137
Secret parts to it
137f/g, hard drive, SKL, gobook, cf52
Slow rapid slow flash
Bad hub
Check crypto
COMSEC
JT
Roll of dice
Pro
Sec
Tertiary
Max messages
40
Max data for messages
256kb
Max message size
60kbps
Radio constantly tuning
DV on
Antenna not connected
Why no net entry
Antenna
Time
Battery
Comsec
Max OS to BS
254
SOPs OS to BS
20
Message type
Free text
Format
EPOCH times
5 15 30 60 mins 4 hrs
Operational freq
2-3hz
Gen frequency
1.6 - 60mhz
Gobook power
6hrs without ba5590
30hrs with
137f battery life
52 hrs
90 day scheds
Working range
10000km
Planning range
5000km
Power
1mw
10W
137g power
125W
Weight
12lbs
EKMS
Electronic key management system
Full name of 137f/g BS
An/prc137f/g
An/trq43
OS
BS
OS 137F
Bs 137G/TRQ 43
Voice
1800km PT
20km CT
EPOCH
Period of time
LPI
LPD
Low probability of interception
Frequency hopping
Low probability of detection
Lowest power
ALE
Automatic link establishment
ARQ
Automatic repeat request
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
5 eyes
UKSF USSOF Canadian SOF NZ SF OZ SF
What’s the sleep function
In ALE mode
Autonomous comms
Autonomous freq management
ALE process
Net entry process
LPD hides in the
Noise floor
Voice crypto
Ky-57 hf
Ky-99 UHF
Batteries used
BA5590
Green led
Rapid flash-no crypto
Slow flash-RX
Solid on-TX
Slow-rapid-slow-bad hub
Red led on battery box
Solid on-not RXimg power from BA5590
Flashing-AA’s need replaced
What’s in battery box
4xAA
Operating temps
-40 to 70
Types of key
Transfer key-13 DTD Transfer key-13-PRC137 Initialisation file-13 INIT Network files-13NTWK Interop file-13-KY99/KY57
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)
OS SOPs
Secure dig voice
Clear analogue voice
MIL STD ALE
Pri
Sec
Ter
Pri-net entry
Sec-priority
Ter-routine
INIT file
KEK-12
TSK-1
NETEK-1
NETWORK file for G only
TEK-127
Tigress protected as
Secret
When RXed a message
Check Print x2 1 in first site file 1 in call sign file Details loged
With TXed message
Check Print 2x copies 1 in out file Attach 1 delivery Details logged
In/out
In 001 from OS
Out 501 from BS
Message format
001 r 201230z feb21 FM k10 to 99
UHF why
Data at night
Voice
You’d need a DMC 120 and hand set