[time-nuts] GPS antenna selection
cfo
xnews5 at luna.dyndns.dk
Fri Aug 5 06:36:17 UTC 2016
On Thu, 04 Aug 2016 23:29:06 +0200, Herbert Poetzl wrote:
> Dear fellow time-nuts!
>
> I'm currently investigating my options regarding GPS antennae (of course
> for time related purposes)
> and I'm really confused by the variety they come in ... (my apologies in
> advance for the long post).
>
>
> Setting:
>
> I'm living in a three storey house with a sloped roof, a covered balcony
> and a larger garden with huge trees on the Austrian countryside
> (Europe).
I'm using this type (26dB, N Connector) on my balcony (South).
It's mounted on a 1m waterpipe, that is "stripped" to the balcony fence.
I initially bought a 40dB , but had to change to 26dB , due to too much
gain.
www.ebay.com/itm/PCTEL-GPS-TMG-26N-26-dB-Internal-Amplifier-Timing-
Reference-Antenna-/232037804675
www.ebay.com/itm/Lucent-Datum-KS24019L112C-GPS-26dB-5V-Antenna-Telecom-
Timing-N-Conn-Andrews-NEW-/361510967153
I use a Tbolt, that have 75ohm impedance , and am using about 25m quad
shielded 75 ohm , quality sattelite cable from the balcony to the Tbolt.
I'm using a N-->F adapter at the antenna end, that makes it super easy to
make a diy F-->F connector cable.
I now have installed a quad active antenna splitter (50ohm) , using the
same 75ohm cable , and a F-->N adapter at the splitter end. And see no
noticable problems using 75ohm cable there.
CFO
Denmark
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