Originally Posted by Cookee
Or am I missing the point and talking a load of rubbish?
Originally Posted by GaryC
My understanding is that on a standard DSC call the lat/Long is not supplied so would really make this a waste of time (NMEA radio output to GPS)
John, I think what Gary is saying is he doesn't see any point in connecting NMEA out
from the radio in
to the plotter, because a normal
DSC message does not contain and position information.
Gary has presumably never received a distress message and had to try and plot the position manually in a choppy sea to see if it was close enough to offer help - otherwise he would see the value in having it immediately appear on the plotter screen (either that or he is some sort of "Rainman" who mentally plots lat/long).
Whilst the value in responding to another's distress is good at the time, it is for most people likely to be a rarely used feature. However there is a potentially useful feature of DSC radios which is rarely used and I suspect GaryC is missing, called DSC Polling. This allows you to request from a friend their current position, which is returned digitally. With the correct plotter connected this will show up on the screen so you can "go to" them. If you regularly sail in company or meet up with friends this can be a useful feature.
Indeed you can use this with a group MMSI - so if ribnetters programmed the ribnet group mmsi into their radios it would be possible for someone with the right plotter to immediately see where all ribnetters in their radio range were (assuming they say "yes" to the polling request).