Here is the antenna I purchased from Ebay (China). This is a Lucent 40dB timing antenna that should work for any GPS receiver. Mine took about 2 weeks to get here and there were no problems getting it. This unit is currently available for 'buy it now" at $28 dollars.
http://www.ebay.com/itm/lucent-GPS-Timing-Reference-Antenna-antenne-40db-N-/230771298518?pt=LH_DefaultDomain_0&hash=item35bb0a90d6 Jerry Mulchin At 03:28 PM 4/2/2012, you wrote: >Bill-- > >The Thunderbolt wants a higher gain antenna than most standard GPS receivers. >I tried standard Garmin active antennas, and while they worked (I have a good >view of the sky), signal levels could be better. > >Best match probably is something like the HP/Symmetricom 58532A antenna, which >has gain > 30dB -- most "active" GPS antennas are in the 24 - 26 dB range. > >They're not cheap, but they'll do the job. > >If you have much distance to cover, feed line is of course important as well >-- 9913, LMR 400, good quality RG6, something with low loss at 1.5 GHz. > >I'm using a 58532A feeding a Symmetricom 58535A active GPS splitter to run a >Thunderbolt and a Datum Tymserve 2100. Feedline is 9913 to the splitter, and >short LMR 195 SMA cables from there. (Yes you can find F to SMA adapters, on >eBay, even though many will shudder at the concept...) > >73 Bob K6RTM > > > >On Apr 2, 2012, at 15:01, [email protected] wrote: > >> ------------------------------ >> >> Message: 4 >> Date: Mon, 2 Apr 2012 17:39:40 -0400 >> From: "Bill Riches" <[email protected]> >> To: "'Discussion of precise time and frequency measurement'" >> <[email protected]> >> Subject: [time-nuts] Antenna for t-bolt >> Message-ID: <01ac01cd1119$1c699af0$553cd0d0$@[email protected]> >> Content-Type: text/plain; charset="US-ASCII" >> >> Hi guys, >> >> I have asked this question several times over the past few weeks and get no >> answer. Have I been ostracized??!! >> >> Question is that I am looking for suggestions for GPS antenna for t-bolt. >> The antenna that I am using now is a no name and I not know where it came >> from! Wonder if a Garman GA-30 will work? >> >> 73, >> >> Bill, WA2DVU >> Cape May, NJ > >_______________________________________________ >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. Jerry Mulchin _______________________________________________ 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.
