IARU Region I bandplan. 50 MHz.
50.000 - 50.100 CW.
50.020 - 50.080 Beacons.
50.090 -        CW activity center freq.
50.100 - 50.500 All narrow modes; CW SSB etc.
50.100 - 50.130 DX window.
50.110          Intercontinental calling frequency.
50.150          EU SSB calling frequency.
50.185          Crossband working frequency.
50.200          Random meteor scatter CW/SSB frequency.
50.500 - 51.000 All modes
50.510          SSTV.
50.550          Facsimile.
50.600          RTTY.
50.620 - 50.750 Digital transmissions.
51.000 - 52.000 All modes.
51.210 - 51.390 Repeater input.
51.410 - 51.590 FM.
51.810 - 51.990 Repeater output.