Hi All, all the comment has been about in-line protectors so far. We in the UK do dot have the ferocity of lightning that is seen in some parts of the USA but surely like all problems "prevention" is better. It is probably not 100% but would it not be better to have a higher metal rod say 6 feet above the GPS antenna spearately grounded as with a building protection system. The GPS antenna should then be placed in the "cone of protection" of this rod. The likelyhood of getting any significant voltage on the centre conductor I would think would be very small. The most likely scenario is for induced voltages/current on the braid due to nearby strikes. This should be grounded in a way that does not allow the whole ground system that it is connected to to to be "pulled up".
As has been stated if you do get a direct hit on the GPS antenna nothing will save your kit, but again (I believe I am right here) the vast majority of the current from the strike will flow down the braid (if it doesnt vaporize it), So grounding the braid, preferably outside the premises if a good idea. The size of the antenna is such that the build up of static should not be significant....it is not a 200 foot long wire as I use on MSF ! If this is rubbish please say so but it sounds much more sensible way of proceding to me. Cheers Alan G3NYK _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
