IARU Region 1 bandplan

 50.000 -50.100 CW

 50.020 - 50.080 Beacons

 50.090 CW activity centre

 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.