Nokia Adaptive Message Terminal

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Nokia Adaptive Message Terminal
300 Bd semiidle stanag 4202.jpg
Frequencies 3 MHz,30 MHz
Frequency Range 3 MHz - 30 MHz
Mode USB
Modulation FSK
ACF
Bandwidth 1000 Hz,1.6 kHz
Location Worldwide
Short Description The Nokia Adaptive Message Terminal, also known as Nokia Adaptive Burst Modem and Kryapp 302, is a Finnish encrypted messaging system suggested to be used by Finnish Intelligence Services and Swedish Military.
I/Q Raw Recording
Audio Sample

The Nokia Adaptive Message Terminal, also known as Nokia Adaptive Burst Modem, is a Finnish encrypted messaging system suggested to be used by Finnish Intelligence Services.

Used by Swedish military under the name Kryapp 302 (kryptoapparat, krypteringsapparat). Colloquially known as MGK and MGKI, or just "Kalle" for short.

Swedish military seems to have the following inventory codes for devices with that name:

  • M3858-302011 KRYAPP 302 MT1
  • M3858-302012 KRYAPP 302 MT2
  • M3858-302021 KRYAPP 302 PC /T1
  • M3858-302022 KRYAPP 302 PC /T2
  • M3858-302111 KRYAPP 3021 /T

In photos the Swedish model has Nokia Data labels over it and it looks quite similar to the Finnish Partiosanomalaite (PARSA) with a QWERTY keyboard, LED dot matrix display and a six AA battery container with the door on the left side. MGK has a four-row keyboard and a speaker next to the display; a PARSA only has three rows. Also, the location and type of external connectors seems to differ. Not sure about the software and interior. The 300 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. signal samples might be originating from Sweden, because Finnish SANLA/PARSA devices only offer 600 and 150 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. options to the end user.


Samples[edit]

151.6 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. 303.4 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. Idle
150 Bd stanag4202possib.jpg
300 Bd semiidle stanag 4202.jpg
303.4 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. Traffic 606.8 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.
300 Bd traffic stanag 4202 poss.jpg
600 Bd stanag 4202.jpg

Additional Samples[edit]




Transmission being oscillated by a nearby Link-11 transmission:


Station S01 (SIMBA 01) calling PFZ, with FSKFrequency-Shift Keying transmission using Nokia MSG Terminal:

Decoding Software[edit]

Hobby Level Software

Additional Links[edit]

Additional Images[edit]