I have a box-full of GPS protectors that were built by a company called ZapTech. They are just coaxial gas tubes that seem to have a strike voltage around 60-90 volts. We replaced them with (MUCH) more expensive PolyPhaser units. I use the ZapTechs on all of my long (600-800 ft) low-freq receiving wire antennas, and they seem to be doing the job but, as with all surge suppression schemes, you can never really be sure.
73, geo - n4ua On Mon, Nov 26, 2012 at 11:42 AM, Chuck Harris <[email protected]> wrote: > There really isn't anything that will protect your > receiver if the antenna takes a strike. But, if > you pass the coax into your house using a well > grounded bulkhead connector, you can protect your > house. > > I got one GPS antenna that had an EMP protector > attached to it (came from NSA)... since the EMP > protector was right at the base of the antenna, > I suspect they were trying to protect the antenna > from induced coax currents from nearby lightning > strikes. The antenna was dead, of course. > > -Chuck Harris > > Peter G. Viscarola wrote: > >> Hi TimeNuts, >> >> What are people using for surge arresters between your GPS receiver and >> the >> antenna, at the entrance to your house? >> >> I've got an entrance panel set up for HF, with copper ribbon to two >> ground rods. >> I'd like to add a connection for my GPSDO. >> >> I know the frequency is about 1.6GHz, and the active antennas use 5V or >> less... is >> that correct? What are the parameters I should consider when selecting an >> arrester? >> >> An associated question, also, if I may: Does it matter if I use >> different types >> of cable between the antenna and the entrance panel and then entrance >> panel and >> the GPS receiver? >> >> Thanks for your guidance, >> >> Peter K1PGV >> >> ______________________________**_________________ time-nuts mailing list >> -- >> [email protected] To unsubscribe, go to >> https://www.febo.com/cgi-bin/**mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>and >> follow the >> instructions there. >> >> > ______________________________**_________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ 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.
