Our preferred pronoun is “Pigs” To get decent amount of reflected energy, the reflector needs to be flat and aimed just so. Spherical surfaces always reflect in almost all directions but the RCS, (Radar Cross Section) is the measure of area that actually returns the signal. So you have a small RCS and then the two loss legs. I doubt much is bouncing back. Who know.
I guess the test would be to turn off the S sector and see if the problem goes away. From: Colin Stanners Sent: Friday, May 24, 2019 10:34 AM To: AnimalFarm Microwave Users Group Subject: [AFMUG] Strange case: elevated water tank near tower causing reflection, ABAB reuse issue? I have a strange case that I wished to check with you ladies and gentlemen (...or "animals" - we've never established a term for AF members?): I have a tower where we're using 3.65Ghz PMP450 with ABAB frequency re-use (recent installation). Users wouldn't stay connected to the N sector; I ran an SA and it was clean, other tests looked good. I was thinking over possible causes and remembered that there's a big elevated water tank ~3000ft S from the tower, whose surface could reflect signals from the S sector (that is on the same frequency as the N AP) towards N directions, at an angle that would be in the main lobe of almost all the customers. I don't know passive-reflector math enough to estimate how strong that reflection would be, but has anyone seen such a case before? -------------------------------------------------------------------------------- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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