Via G8JNJ RaspSDR at 1115 UTC (1215 local SDR receiver time). 27.75MHz. 27750 FM 27.7500 FM [CSQ] 27.750MHz Japanese fishing boat radio chatter 480 channel FM fishery radiotelephone. 27.5-39.5MHz 25w marine radio FM radiotelephone. Dual mode signaling 300/1200 baud selective calling. Carrier squelch only.
Fair to good signal on 27.7500 MHz FM [CSQ]. Some QRM from UK FM CB on 27.75125 MHz FM and SSB activity on 27.745 MHz and 27.755 MHz. Weak POCSAG pager paging signal on 27.75 MHz as well.