Multimon-NG Package Description

MultimonNG a fork of multimon. It decodes the following digital transmission modes:

  • POCSAG512 POCSAG1200 POCSAG2400
  • EAS
  • UFSK1200 CLIPFSK AFSK1200 AFSK2400 AFSK2400_2 AFSK2400_3
  • HAPN4800
  • FSK9600
  • DTMF
  • ZVEI1 ZVEI2 ZVEI3 DZVEI PZVEI
  • EEA EIA CCIR
  • MORSE CW

Source: https://github.com/EliasOenal/multimon-ng
Multimon-NG Homepage | Kali Multimon-NG Repo

  • Author: Thomas Sailer, Elias Oenal
  • License: GPLv2

Tools included in the multimon-ng package

multimon-ng – Digital radio transmission decoder
root@kali:~# multimon-ng -h
multimon-ng  (C) 1996/1997 by Tom Sailer HB9JNX/AE4WA
             (C) 2012/2013 by Elias Oenal
available demodulators: POCSAG512 POCSAG1200 POCSAG2400 EAS UFSK1200 CLIPFSK AFSK1200 AFSK2400 AFSK2400_2 AFSK2400_3 HAPN4800 FSK9600 DTMF ZVEI1 ZVEI2 ZVEI3 DZVEI PZVEI EEA EIA CCIR SCOPE

Usage: multimon-ng [file] [file] [file] ...
  If no [file] is given, input will be read from your default sound
  hardware. A filename of "-" denotes standard input.
  -t <type>  : input file type (any other type than raw requires sox)
  -a <demod> : add demodulator
  -s <demod> : subtract demodulator
  -c         : remove all demodulators (must be added with -a <demod>)
  -q         : quiet
  -v <level> : level of verbosity (for example '-v 10')
  -f <mode>  : forces POCSAG data decoding as <mode> (<mode> can be 'numeric', 'alpha' and 'skyper')
  -h         : this help
  -A         : APRS mode (TNC2 text output)
  -m         : mute SoX warnings
  -r         : call SoX in repeatable mode (e.g. random seed for dithering)
   Raw input requires one channel, 16 bit, signed integer (platform-native)
   samples at the demodulator's input sampling rate, which is
   usually 22050 kHz. Raw input is assumed and required if piped input is used.

multimon-ng Usage Example

Take raw input from rtl_fm (-t raw), add the POCSAG512, POCSAG1200, POCSAG2400, and SCOPE modules (-a POCSAG512 -a POCSAG1200 -a POCSAG2400 -a SCOPE), decode in alpha mode (-f alpha), reading from stdin (/dev/stdin):

root@kali:~# rtl_fm -f 149.614M -s 22050 -p -19 | multimon-ng -t raw -a POCSAG512 -a POCSAG1200 -a POCSAG2400 -a SCOPE -f alpha /dev/stdin
multimon-ng  (C) 1996/1997 by Tom Sailer HB9JNX/AE4WA
             (C) 2012/2013 by Elias Oenal
available demodulators: POCSAG512 POCSAG1200 POCSAG2400 EAS UFSK1200 CLIPFSK AFSK1200 AFSK2400 AFSK2400_2 AFSK2400_3 HAPN4800 FSK9600 DTMF ZVEI1 ZVEI2 ZVEI3 DZVEI PZVEI EEA EIA CCIR SCOPE
Enabled demodulators: POCSAG512 POCSAG1200 POCSAG2400 SCOPE
Found 1 device(s):
  0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: ezcap USB 2.0 DVB-T/DAB/FM dongle
Found Rafael Micro R820T tuner
Oversampling input by: 46x.
Oversampling output by: 1x.
Buffer size: 8.08ms
Tuned to 149867575 Hz.
Sampling at 1014300 Hz.
Output at 22050 Hz.
Exact sample rate is: 1014300.020041 Hz
Tuner gain set to automatic.
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