Return home

Info-Tech M-600
Multi-Mode Decoder


Replaced by

Please check
our Used List

Recently sold used

Return to Discontinued Decoders


Previous Models:

Discontinued RTTY & Facsimile Equipment 
Info-Tech logo




Info-Tech M-600

The Info-Tech M-600 receives Morse and also decodes regular Baudot RTTY still used by some international press agencies, weather stations and aeronautical concerns (45, 50, 57, 74 and 100 baud). Both SITOR A & B modes are included so you can read maritime and international diplomatic traffic. ASCII can be decoded at 75, 110, 150, 300, 600 and 1200 baud. The ATC - Automatic Threshold Control feature allows RTTY decoding with reception of either Mark or Space. This is useful during marginal or fading conditions. The UOS - Unshift on Space function is useful when copying RTTY text (resets to LTRS case upon receipt of the SPACE character). Modes and other parameters are selected by a numeric keypad and presented on the status line of the video monitor (not supplied). The status line shows the operating parameters and features a tune for max. indication. Additionally, there is an LED bargraph on the front of the M-600. A complete system will require the following components:   your receiver, audio cable and a composite video monitor (sold separately). The rear panel has numerous I/O jacks. The M-600 can integrate with external scopes and demodulators.

Requires 115/230 VAC 50/60 Hz 25W. 16.385 x 3.5 x 10.75 inches. With Owner's Manual.


  • Baudot, the original RTTY mode, can be copied in all five speeds (45, 50, 57, 75 and 100 baud). Baudot is used by some press agencies, ham radio operators and weather stations.
  • SITOR is a popular teletype modes on shortwave. SITOR is used for communications between ships and coastal stations plus ham radio operators.
  • NAVTEX Navigational Telex is the transmission of navigational and weather information on 518 kHz. (NAVTEX is a variant of SITOR.). Click here for NAVTEX information.
  • Morse Code
  • ASCII at 75, 110, 150, 300, 600 and 1200 baud.

Order # Model Description Price Order
  M-300C Tri-mode CW/RTTY/ASCII keyboard INFO Discontinued
  M-605 External FDM/VNS Demodulator INFO Discontinued
  M-610 External tuning scope with audio AGC/prefilter. INFO Discontinued
  Rack Ears Mounting brackets for a 19 inch rack. Discontinued
  OM M600 Owner's Manual. Discontinued
  PPORT Parallel printer interface kit. Discontinued

Copyright 2005-2022, Universal Radio, Inc.

00 D 000/000 Q080/140 08/22