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EasyPal Frequencies on VHF Region1

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  • CT1QK
    Greetings to all I would like to know what are the usual VHF (50 Mhz and 144 Mhz) frequencies in FM that are in use in your country. Should we use the 144.500
    Message 1 of 11 , Jun 6, 2009
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      Greetings to all
      I would like to know what are the usual VHF (50 Mhz and 144 Mhz)
      frequencies in FM that are in use in your country.
      Should we use the 144.500 (the SSTV call frequency) advised for
      analog SSTV in Europe or another one?
      I do not see anything related on this on doc papers from
      IARU for region 1.
      I see some advise frequencies for Digital Voice, Packet, Aprs and
      even Fax besides that nobody use it, but nothing for file transfer
      in digital mode.
      I think we should do something about this.
      Any comments?

      Rui
      CT1QK
    • Dave Ackrill
      ... The UK bandplans can be found at http://www.rsgb.org/spectrumforum/bandplans/ Also, the IARU Region 1 VHF Managers handbook lists the generic bandplans
      Message 2 of 11 , Jun 6, 2009
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        CT1QK wrote:
        > Greetings to all
        > I would like to know what are the usual VHF (50 Mhz and 144 Mhz)
        > frequencies in FM that are in use in your country.

        The UK bandplans can be found at
        http://www.rsgb.org/spectrumforum/bandplans/

        Also, the IARU Region 1 VHF Managers handbook lists the 'generic'
        bandplans and can be downloaded from http://tinyurl.com/r2p2zz

        Most digital/file transfer activity round here (East Midlands) is on
        either 144.650 or there used to be a Thursday night 'net' on 145.275MHz,
        but I am not sure if that is still going.

        Dave (G0DJA)
      • Demetrius
        ... We used to use 144.550 for DRM in the U.K. 144.500 is more commonly used for ATV talkback.
        Message 3 of 11 , Jun 6, 2009
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          > Should we use the 144.500

          We used to use 144.550 for DRM in the U.K.
          144.500 is more commonly used for ATV talkback.
        • CT1QK
          ... Acording with one off the last IARU Publication I do not know where we should work this mode.I see several alocations for DV (maybe they mean DSTAR) I do
          Message 4 of 11 , Jun 6, 2009
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            > Should we use the 144.500?

            Demetrius wrote:


            >>We used to use 144.550 for DRM in the U.K.
            >>144.500 is more commonly used for ATV talkback.






            Acording with one off the last IARU Publication I do not know where we should
            work this mode.I see several alocations for DV (maybe they mean DSTAR)
            I do not know, and MGM.

            See a small band plan alocation for 2m band extract from  
             VHF_Handbook_V5_35_0001 from IARU

            4.4 144 - 146 MHz BANDPLAN ( Davos 2005 )
            Frequency | Maximum
                      | Bandwidth  |                    |
            (MHz)     |  (-6dB)    |     MODE           |        USAGE
            ----------------------------------------------------------------------------------
            144.000   |            |Telegraphy(a)       |144.050 Telegraphy calling
            144.110   |    500Hz   |     EME            | 144.100 Random MS(m
            ----------|------------|--------------------|-------------------------------------
            144.150   |            |    MGM             |144.138 PSK31 center of activity
            ----------|------------|--------------------|---------------------------------------
            144.150   |    2700Hz  |Telegraphy, SSB,    |144.160.144.180 alternative MGM allocation
            144.180   |            |    MGM             |144.170 alternative MGM calling frequency
            ----------|------------|--------------------|------------------------------------------
            144.180   |    2700Hz  |Telegraphy & SSB    |144.195-144.205 Random MS SSB (m)
            144.360   |            |                    |144.300 SSB callin g
            ----------|------------|--------------------|------------------------------------------           144.360   |    2700Hz  |Telegraphy, SSB,    |144.370 FSK441 Random calling(m)
            144.399   |            |    MGM             |
            ----------|------------|--------------------|----------------------------------------
            144.400   |    500Hz   |    Telegraphy      |    Beacons exclusive(b)
            144.491   |            |    MGM             | 144.4905 +/-500Hz WSPR Beacons
            ----------|------------|--------------------|----------------------------------------
            144.500   |    20kHz   | All mode (f)       | 144.500 SSTV calling
                      |            |                    | 144.525 ATV SSB talk back
                      |            |                    | 144.600 RTTY calling(n)
                      |            |                    | 144.630-144.660 Linear Transponder OUT
                      |            |                    | 144.660-144.690 Linear Transponder IN
                      |            |                    | 144.700 FAX calling
                      |            |                    | 144.750 ATV talk back
            144.794   |            |                    |
            ----------|------------|--------------------|----------------------------------------
            144.794   |    12kHz   |    MGM (h)         | 144.800 APRS
            144.990   |            |                    |
            ----------|------------|--------------------|-----------------------------------------
            144.994   |    12kHz   |FM/Digital voice    |  Repeater Input exclusive (c)
            145.194   |            |                    |
            ----------|------------|--------------------|-------------------------------------------
            145194    |    12kHz   |FM/Digital voice(i) |   Space communication (p)
            145.206   |            |                    |
            ----------|------------|--------------------|-------------------------------------------
            145.206   |    12kHz   |FM/Digital voice i) | 145.2375 FM Internet Voice Gateway
                      |            |                    | 145.2875 FM Internet Voice Gateways
                      |            |                    | 145.300 RTTY local
                      |            |                    | 145.3375 FM Internet Voice Gateway
                      |            |                    | 145.375 digital voice calling
                      |            |                    | 145.500 (mobile) callin g
            145.5935  |            |                    |
            ----------|------------|--------------------|---------------------------------------------
            145.594   |    12kHz   |FM/Digital voice    |  Repeater Output exclusive (c,d)
            145.7935  |            |                    |
            ----------|------------|--------------------|---------------------------------------------
            145.794   |    12kHz   |FM/Digital voice(i) |  Space communication (p)
            145.806   |            |                    |
            ----------|------------|--------------------|---------------------------------------------
            145.806   |    12kHz   |    ALL MODE (e)    |  Satellite
            146.000   |            |                    |
            ----------|------------|--------------------|---------------------------------------------

            Thanks from CT1QK


          • Dave Ackrill
            ... DV means Digital Voice and MGM means Machine Generated Modes. So, Digital SSTV/file sharing could be described as a Machine Generated Mode. Dave (G0DJA)
            Message 5 of 11 , Jun 6, 2009
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              CT1QK wrote:
              >
              >
              > > Should we use the 144.500?
              >
              > Demetrius wrote:
              >>
              >>
              >> >>We used to use 144.550 for DRM in the U.K.
              >> >>144.500 is more commonly used for ATV talkback.
              >>
              >
              >
              >
              >
              >
              > Acording with one off the last IARU Publication I do not know where we should
              > work this mode.I see several alocations for DV (maybe they mean DSTAR)
              > I do not know, and MGM.

              DV means Digital Voice and MGM means Machine Generated Modes.

              So, Digital SSTV/file sharing could be described as a Machine Generated
              Mode.

              Dave (G0DJA)
            • Andy Eskelson
              Locally we used 144.5 for SSTV, I can t remember every needing to QSY due to other stations calling. To be honest there is so little activity on the mode on 2m
              Message 6 of 11 , Jun 6, 2009
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                Locally we used 144.5 for SSTV, I can't remember every needing to QSY
                due to other stations calling. To be honest there is so little
                activity on the mode on 2m you might as well use the calling freq just to
                drum up a bit of use.

                Andy




                On Sun, 07 Jun 2009 01:01:19 +0100
                Dave Ackrill <dave.g0dja@...> wrote:

                > CT1QK wrote:
                > >
                > >
                > > > Should we use the 144.500?
                > >
                > > Demetrius wrote:
                > >>
                > >>
                > >> >>We used to use 144.550 for DRM in the U.K.
                > >> >>144.500 is more commonly used for ATV talkback.
                > >>
                > >
                > >
                > >
                > >
                > >
                > > Acording with one off the last IARU Publication I do not know where we should
                > > work this mode.I see several alocations for DV (maybe they mean DSTAR)
                > > I do not know, and MGM.
                >
                > DV means Digital Voice and MGM means Machine Generated Modes.
                >
                > So, Digital SSTV/file sharing could be described as a Machine Generated
                > Mode.
                >
                > Dave (G0DJA)
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