The booster amps used for satellite dishes work on GPS as well.
I used one when I was feeding two Thunderbolts thru a splitter.
On 04/02/2012 03:28 PM, Bob Martin 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
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--
Chuck Forsberg WA7KGX N2469R [email protected] www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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