[time-nuts] testing L1 antenna

Tom Miller tmiller at skylinenet.net
Thu Jul 25 06:58:07 UTC 2013


You might generate a CW RF test signal at a level that allows easy detection 
on the SA. Maybe into a simple dipole antenna. A second dipole test antenna 
could establish a reference that you could relate the GPS antenna gain to.

Tom


----- Original Message ----- 
From: "Mark C. Stephens" <marks at non-stop.com.au>
To: <time-nuts at febo.com>
Sent: Thursday, July 25, 2013 2:51 AM
Subject: [time-nuts] testing L1 antenna


I have a number of GPS L1 timing antenna up, and I suspect one of them is 
not quite right.

As a test procedure, all I can come up with is a power-injector connected to 
the feed line, the feed line connected to a DC block on the input of a 8566A 
SA.
Then connect a known good antenna and compare the DUT.
Note: I haven't tried this yet, still thinking about it :)

Has anyone got a proven method to check a GPS timing antenna for reliable 
operation?


--marki
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