RF gas-based lightning surge protectors are widely available; look on eBay for items with words like: Huber Suhner Polyphaser EMP surge lightning suppressor protector RGT gas
For example, http://search.ebay.com/search/search.dll?satitle=Polyphaser+protector http://search.ebay.com/search/search.dll?satitle=Suhner+lightning http://search.ebay.com/search/search.dll?satitle=EMP+surge I'd be interested in reports on how well these work for GPS antennas, both in terms of lightning protection and in terms of attenuation, tempco, or phase delay. /tvb _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.