[time-nuts] Anyone have experience with this antenna?

[djl]

There's a picture of the guts in the ebay description...it's a dual 
patch antenna!
the patches seem to be trimmed to get a pattern.

On 2018-02-05 20:33, John Green wrote:
> https://www.ebay.com/itm/High-Precision-L1-L2-GNSS-GPS-GLONASS-BeiDou-RTK-CORS-survey-antenna/162718512935?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
> 
> Listed on eBay as a L1/L2 antenna with decent specs. They seem to 
> indicate
> it is as good as a choke ring antenna. I suspect it is just a patch in 
> a
> fancy package. That is what the Leica and Trimble survey grade antennas 
> I
> have contain anyway. I bought one but haven't had the chance to do any
> testing. I couldn't figure out how to get to the insides to take a peek
> without damaging it. My antenna testing abilities are pretty feeble.
> Mostly, I will just compare it to the Leica and Trimble to see how many
> satellites it sees and look at position wander of the uBlox. Is there 
> any
> simple way to judge the quality of a GPS antenna?
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-- 
Dr. Don Latham
PO Box 404, Frenchtown, MT, 59834
VOX: 406-626-4304