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NATO
  
STANAG
Standardization Agreement (NATO) - this page is a stub

STANAG is the abbreviation of Standardization Agreement. It is used by the military multi­na­ti­o­nal North Atlantic Treaty Organization (NATO) and its member states, to define a set of inter­ope­ra­bi­li­ty standards for vitually every conceivable detail of the organisation. The word STANAG is followed by a number that identifies the standard. Below is a non-exhaustive overview of known STANAG numbers with additional information.

STANAG 4285
Introduction
STANAG 4285 is a NATO standard for a single-tone MODEM for HF radio links, based on the US military standard MIL-STD-188-110B. The latter specifies STANAG 4285 and 4481 (Minimum Technical Equipment Standards for Naval HF Shore-to-Ship Broadcast Systems). Furthermore, STANAG 5066 describes a protocol set layered on top of the MODEM, and provides some features that are missing from the 4285 standard.

Specifications
  • STANAG
    4285
  • MIL-STD
    188-110B
  • Purpose
    Modem specification (waveform)
  • Year
    1987
  • Type
    Intermittent, continuous
  • Waveform
    USB 8PSK (8-state phase-shift keying)
  • Tone
    1800 Hz (single tone)
  • Speed
    300, 600, 1200, 2400, 3600 baud
  • Bandwidth
    2.5 kHz ~
  • Alphabet
    ITA2
References
STANAG 4285 equipment on this website
Telefunken ECHOTEL HF Modem ETM-1810
ETM-1810 Radio modem with FEC
Telefunken ECHOTEL HF Modem ETM-1820
HF modem with integrated voice encryption, made by TeleSecurity Timmann
Further information
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© Crypto Museum. Created: Thursday 12 June 2025. Last changed: Thursday, 12 June 2025 - 10:55 CET.
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