Very interesting Todd --- I hadn't thought of that.. I am sure that there are some SSS members that will want to turn that off if they can!
I know some boats have AIS transmit -- like Culebra (?) VALIS, Lightspeed, Shaman , and others. We could get all the MMSIs from jibeset registration data I am sure.... but most won't have transceiver capability. Or do they...?
Actually AIS shows up on free websites and on free chartplotters- we did both for DHF for fun. Caused angst for a new RC member since they came on and off. AIS is VHF so elevation, connections, line of sight (and on/off) come into play. No formal testing or requirement- just opportunistic but entertaining and educational.
We did poll VHF-DSC MMSI numbers with Andys rig and help as we used at skippers meeting as a learning exercise with a VOLUNTEER group of 8-9 boats with mixed results- when it worked- it worked well. Mostly a function of racer equipment condition and setup. Auto reply of position works best- the racer sets up radio that says if this number (RC) requests position, then send it. Many configuration menu's on radios
We had results out to the farallones- Ma's Rover being just south of maintop. Position shows right on chartplotter (andy's rig and help)- we also had voice contact from landsend to Ma's rover at that position w a 4ft 3db antennae at Lands end parking lot ( USS San Francisco) and 25w fixed mount. Also used for historical practice of roll call per SI.
SPOT btw had a system outage during the race and didn't inform customers until Monday via email- that caused angst from folks watching at home and they shared it.
The most intriguing opportunity to help RC - especially those that dont go to Lands end- is to give a position report to VTS which also helps them do their job and relieves stress. When they confirm position report w antennae on Mt Tam, RC in comfy in the bay YC can record. A free radio check as a bonus- which I think is important. This was a volunteer test to during DHF. Radio conditions varied- I think there's a solution in here somewhere for all- "SV approaching ,," and its free (well already paid for)
All of the numbers (including sat phone, SSB etc) are in Jibeset for RC and CG benefit- at least for DHF.
AIS example from the internet
BAMA volunteer DSC test (andys rig and help)- Ma's Rover ping at Maintop w position report and info (text box shown w Lat Long) followed by voice
We did a detailed report to NCORC and a summary at DHF awards.
Here's a writeup/video on the live fire (first time ever) DSC alert we did at skippers meeting.
http://www.pressure-drop.us/forums/content.php?4288-DSC-Calling-Who-s-Gonna-Answer
Jibeset is also working on smartphone tracking.
AIS was mandatory in a SoCal race- thread on SA. Unhappiness for leaders showing the way.
cheers
bob
PS- the most interesting surprise was that the remote setup could hear the GGYC as well as the ocean racers with a lot of dirt and rock in between the remote and GGYC. I duplicated this for DHLS. My bet is a reflection off Marin cliffs and/or GGB North tower- too crisp to be atmospheric- who knows. Brian B offered to do a directional test to seek the reflection source assuming its still repeatable - great if it is.