UBAUnion royale belge des amateurs-émetteurs a.s.b.l.

slideshow 1

Photo: Couloir

Le bandplanning entre 50 et 52 MHz

Frequency Max Bandwidth Mode Usage


500 Hz

Telegraphy (a)
50.020 - 50.080   Beacons

50.090                Telegraphy centre of activity


2700 Hz

50.100 - 50.130   Intercontinental
50.110                 DX Calling (c)
50.150                 SSB Centre of activity
50.185                 Crossband activity center
50.200                 MS center of activity
50.255                 JT44
50.260 - 50.280    FSK441
50.270                 FSK441 calling freq
50.285                 PSK31 center of activity
50.400 +/-500 Hz WSPR Beacons


12 kHz

All modes
50.510                 SSTV (AFSK)
50.520 - 50.540    Simplex FM Internet
                           Voice Gateways

50.550                 FAX working frequency
50.600                 RTTY (FSK)
50.620 - 50.750    Digital communications
51.210 - 51.390    FM/DV repeaters input
                           channels 20 kHz spacing (e)
51.410 - 51.590    FM/DV simplex (f)
51.510                 FM calling frequency
51.630                 DV calling 
51.810 - 51.990   FM/DV repeaters output
                          channels, 20 kHz spacing (e)

This bandplan, first adopted at the IARU Region 1 Conference in Torremolinos (1990) and revised at the 1996 Tel Aviv conference, is recommended for use in those countries in the European part of Region 1 which allow amateurs to operate in this part of the radio spectrum. In many countries in the African part of Region 1 (see footnotes accompanying the ITU frequency allocation table) the 50 - 54 MHz band is allocated to the Amateur Service on a primary basis, and in some cases, like for instance in South Africa, an adaptation of the Region 2 bandplan is used.
The current revision was adopted in Cavtat (2008).

1. Notes
           a. Telegraphy is permitted over the whole band; Telegraphy exclusive between 50.000 - 50.100 MHz.

2. Usage
           c. The intercontinental DX calling frequency 50.110 MHz should not be used for calling within the European part of Region 1 at any time.
           d. Channelized equipment: On this band the FM channel spacing is 20/10 kHz.
           e. For the specification of FM telephony see section 8.2
           f. This segment is for simplex use only with no Digital Voice gateways permitted.
               Embedded data traffic is allowed along with Digital Voice. DV users should check that
               the channel is not in use by other modes
          g. Refer to Beacons Chapter for coordination of beacons in the beacon sub-band

          For the numbering of FM telephony channels see 4.1
          In those countries within the European part of IARU Region 1 where it is allowed to set up FM
          repeaters on 50 MHz, the indicated channels are recommended in order to establish a commonality.
          In those countries where the National Authorities do not permit repeaters to operate with
          output frequencies above 51 MHz, repeater output frequencies may be 500 kHz below the
          repeater input frequencies.(Tel Aviv 1996)