Re: [time-nuts] GPS Antenna Splitters Symmetricom 58535A Available
Chris said: 3) Do people really run coax straight from a GPS antenna into their > house with no protection from lightening? Maybe a GPS antenna is a > small target compared to a 100 foot wire antenna in Florida > Chris, I'm in Orlando, the lightning capitol of the entire world. Here, * nothing* is a small target. Anyone who fails to install lightning protection on a GPS antenna will, sooner or later, buy a new GPS...or a new room full of gear...or a new house. Smart hams down here use wireless routers or optical bridges, serious whole-house surge protectors (Siemans is my choice), equally serious power conditioners (Brick Wall is my choice), isolated UPS systems, antenna grounding switches, and star ground systems. We laugh when the cable company tells us their lines are surge protected and install additional equipment after their technicians roll away And we still get damage on an occasional basis. Just a fact of life in Florida. Tii Network Technologies makes a coaxial surge protector designed for cable systems but suitable for GPS antennas if you will put up with F connectors. They work fine for me but I have a very short run. Bill Oh, before someone grumbles, I have no connection with Siemans or Brick Wall or Tii. I just use their gear. > > ___ > 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. > ___ 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.
[time-nuts] GPS Antenna Splitters Symmetricom 58535A Available
This discussion prompted me to remind list members that I still have some of the subject smart GPS splitters available. These are brand new in original wrapping. The pricing is: 1 58535A $35 plus $ 4.95 priority flat rate shipping 2 58535A $65 plus $ 4.95 priority flat rate shipping 4 58535A $120 plus $10.70 priority flat rate shipping I am not certain, but, it is possible that USPS flat rate priority may go up in 2011. BTW, flat rate is not that much more to other countries, and, I do not mind filing out the customs forms. Best to all in 2011. Regards - Mike Mike B. Feher, EOZ Inc. 89 Arnold Blvd. Howell, NJ, 07731 732-886-5960 office 908-902-3831 cell -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Chris Albertson Sent: Thursday, December 30, 2010 6:26 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] GPS Antenna A few questions about GPS antenna 1) I read the Thunderbolt user manual and did not find any meaningful spec on the antenna except that it is amplified and uses DC power in the coax. What signal level is the Thunderbolt expecting? oes it want a 24dB antenna or more or much less? 2) I want to feed two GPS units with one roof mounted antenna. I figure that splitters are just a transformers and will not pass DC to power the antenna. There must be an easy way around this. 3) Do people really run coax straight from a GPS antenna into their house with no protection from lightening? Maybe a GPS antenna is a small target compared to a 100 foot wire antenna in Florida -- = Chris Albertson Redondo Beach, California ___ 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.
