On Fri, Feb 29, 2008 at 6:50 PM, Tom Van Baak <[EMAIL PROTECTED]> wrote: > > 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.
Permanent GPS Stations - Surge and Lightning Protection: Coaxial Cable Protection <http://facility.unavco.org/project_support/permanent/equipment/lightning/coax.html> and the (dated) report "Effects of Lightning Electromagnetic Pulse (LEMP) Protection on GPS Signals" <http://facility.unavco.org/project_support/permanent/equipment/lightning/lemp_report.html>. Some mentioned I.C.E. (Industrial Communication Engineers)'s impulse suppression units, note that their HF and VHF/UHF units are only rated for up to 200MHz and 1000 MHz respectively, which is less than the L1 frequency of 1575.42 MHz. Their TVRO / DBS unit may work. Polyphaser make several different GPS specific models. <http://www.iceradioproducts.com/> <http://www.polyphaser.com/productdata.aspx?class=gps> _______________________________________________ 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.