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Trimble Active GPS Puck Antenna


Lscott

I got a couple of Trimble active GPS antennas from a buddy who picked up a bag of them at a Ham swap really cheap. He gave me a couple. This is a Trimble model 28367-70. It's an old model design for use on the US GPS system only.

I checked the antenna on a bench top and measured the current draw at around 20mA at 5VDC to the antenna supplied over the coax cable.

https://www.zti-communications.com/documentation/GPSHardmountantenna_Literature.pdf

There are newer models that will work with US and other GPS systems that looks very similar. I have no idea what these cost new, likely expensive.

https://www.navtechgps.com/wp-content/uploads/AV28_DS.pdf

The signal from US GPS satellites is rather weak and a preamp is recommended for more than a very short coax cable run. I want to use this with my AT-D578UV III Plus in place of the cheap included GPS puck antenna. The included one doesn't look like it's made for outdoors installation while the Trimble unit is.  I needed to order a cable with a male TNC connector on one end for the antenna and a male SMA connector on the other end using 15 foot length of RG-316 coax to mate up with the radio.


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Misc. Radio Gear

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