[time-nuts] Trimble Thunderbolt GPS Antenna
bg at lysator.liu.se
bg at lysator.liu.se
Sun Apr 29 16:51:54 UTC 2012
Hi Ken,
>
> Hi, Time-Nuts guys I just baught a Trimble Thunderbolt on ebay. I am in
> need of an antenna, there are so many on ebay I am not sure which one to
> get. Maybe someone could point me in the right direction?
>
> Thankyou
>
> Ken Kubick
How long antenna cable do you need in your location?
How low-loss antenna cable will you use?
The orginal antenna to the Tbolt is the Trimble Bullet antenna.
http://trl.trimble.com/docushare/dsweb/Get/Document-8420/Bullet-III_DS.pdf
Ebay #220997989191
Here is a former HP/Agilent antenna that has worked fine for me.
http://www.symmetricom.com/products/gps-solutions/gps-timing-products-and-accessories/58532A-GPS-L1-Reference-Antenna/
Generally most GPS antennas will work. (Searching for "GPS timing antenna"
will give you some choice)
Here is a very nice antenna. Rather good gain at 33dB, LNA power from
2.5VDC to 24VDC - which means it can take the oldtimer GPS receivers
giving 12V or 15V and new giving 3.3V or lower. (Like Antcom antennas, no
dealings with that particular seller.)
Ebay #150753929036
Datasheet
http://antcom.com/productsheets/2G15A-XTB-1-N_D.pdf
Good luck!
--
Björn
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