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Re: ✘UBX-MON-SPAN and antennas

From: Gary E. Miller
Subject: Re: ✘UBX-MON-SPAN and antennas
Date: Tue, 22 Feb 2022 17:37:53 -0800

Yo All!

I misidentifed a 2nd GPS+GLONASS antenna as an ANN-MB0.  It is another
generic cheap antenna.  I have renamed that to gpslo2, and added the
real ANN-MB0 to the two revide plots.


The ANN-MB passband is the flatest, with a little peak at the GPS
center.  Slightly higher gain than the others, but also the highest
signal level outside the pass band.  So maybe just a slight stronger


They are all pretty similar in L2, except the ANN-MB0 seems to have
outliers above the general curve.

Summary, the ANN-MB0 does look to be the best antenna, but not by a
huge margin.

Someday I should run longer tests with gpsprof too see if there the
difference in SNR and used satellites.  This only measured "power",
not SNR, hoizon, etc.

Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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