Thanks for all your thoughts on this.
I agree on the checking against one of my other gps units if it happens again. Next time we go out I intend to have one up and running in the cockpit
with us. Unfortunately, I wasn't able to leave the helm
where we were at and go below to retrieve it this time. Also, the puck/antenna issue is probably not an issue here. The puck antenna cable goes down one side of the guard, and is mounted aft, while the vhf antenna cable runs down the other tube of the guard and is up the mast
. We wrapped both with double shrink wrap where they exited the instrument housing and otherwise came into contact with areas where chafe might become an issue in the future. After spending almost two weeks installing the new pedestal
, instruments,housings and running all the wires, cables
and the like, we wanted to be VERY sure we didn't ever have to repeat the process in the future LOL!
I was thinking that perhaps the recent GA. "tests" may have bled over to my area, but I am not convinced that is in play here either. I didn't know if there has been any experiences of "anomalous" areas where others have had intermittent dropout. Looks like Zee may have seen this out in the Gulf, so there may be certain areas or reasons (either man-created or atmospheric, magnetic...who knows) where this rarely happens.
It wasn't like when one has a chart interruption, where the chart disappears for a moment before the next datum starts showing up. And oddly, the speed and computer course displays stayed up, while the time, Lat/Lon, and boat icon disappeared.
I just hope I don't have any further occurrences, I was in home waters, so it was not a problem, just ...odd.