Most times when I go out I log onto the VMR coastguard. I use VHF all the time, as I’ve found 27mhz next to useless. Whilst the emergency channel is 16 and the supplementary is 67, there is some confusion as to what channel the VMR is using as a working channel on that day. I have often gone out using one channel, tried later to contact the VMR on that same channel and have not had any response. I have then made contact with the coastguard on a different channel. I don't wish to criticise the coastguard service as they do a splendid job, but I just wish that some standard could be made so that we don't have to channel hop.