Fishery radio networks, 27.500 MHz FM to 39.475 MHz FM - 25 kHz spacing. Channelized, carrier squelch, simplex FM.
31.125 MHz FM 31.1250 FM [CSQ] 31.125MHz FM active with Asian fishermen chatting at 1200 UTC 25-May-2023. Via UK based RaspSDR G8JNJ SDR frequency 31.125 MHz mode NFM. Fishery radio chatter 25w output. 31.1250 MHz FM CSQ is one of the more popular frequencies.