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    The following form allows you to view linux man pages.

    Command:

    multimon

    
    
    

    SYNOPSIS

           multimon [options] [input_file]
    
    
    

    DESCRIPTION

           This  manual  page documents briefly the multimon command.  This manual
           page was written for the  Debian  GNU/Linux  distribution  because  the
           original program does not have a manual page.
    
           The  multimon  software  can  decode  a variety of digital transmission
           modes commonly found on UHF radio. A standard PC soundcard is  used  to
           acquire  the signal from a transceiver. The decoding is done completely
           in software. Currently, the following modes are supported:
    
               * AX.25
                            o 1200 Baud AFSK
                            o 2400 Baud AFSK (2 variants)
                            o 4800 Baud HAPN
                            o 9600 Baud FSK (G3RUH)
    
               * POCSAG
                            o 512 Baud
                            o 1200 Baud
                            o 2400 Baud
    
               * Miscellaneous
                            o DTMF
                            o ZVEI
                            o SCOPE
    
           An arbitrary set of the above modes may run concurrently  on  the  same
           input signal (provided the CPU power is sufficient), so you do not have
           to know in advance which mode is used. Note  however  that  some  modes
           might  require modifications to the radio (especially the 9600 baud FSK
           and the POCSAG modes) to work properly.
    
           AX.25 - Amateur Packet Radio protocol datagram format
           POCSAG (Post Office Code Standards Advisory Group) is a  common  paging
           transmission format.
           DTMF  -  Dual  Tone Multi Frequency. Commonly used in in-band telephone
           dialing.
           ZVEI- The German Electrical and Electronic Manufacturers' Association -
           paging tone format.
           SCOPE  -  show  samples  in  a rudimentary oscilloscope display on an X
           server.
    
           Multimon does not decode Morse code signals.
    
    
    

    OPTIONS

           -t <type>
                  input file type (any other type than raw requires sox)
                  allowed types: raw aiff au hcom sf voc cdr dat smp wav maud vwe
    
           using a SCOPE display:
           multimon -s SCOPE -t wav /tmp/message.wav
    
           With no input file specified, the program listens directly to the sound
           card using the /dev/dsp interface.  So to decode (only) DTMF  tones  on
           the sound card input:
           multimon -a DTMF
    
    
    

    NOTICE

           Please  note  that  monitoring commercial services may be prohibited in
           some countries, this software should therefore only be used to  monitor
           the amateur radio service.
    
    
    

    SEE ALSO

           gen(1)                    http://www.qsl.net/kb9mwr/projects/pager/Two-
           Tone%20Pager%20Decoding%20Using%20Multimon.pdf
    
    
    

    BUGS

           The DTMF and  ZVEI  decoders  have  more  frequent  spurious  detection
           reports.
    
    
    

    AUTHOR

           This   manual   page   was   written   by  A.  Maitland  Bottoms  <bot-
           toms@debian.org>, for the Debian GNU/Linux system (but may be  used  by
           others).
    
                                     June 19, 2000                     MULTIMON(1)
    
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