Re: [WISPA] Wind!

[Bret Clark]

My guess would be wind induced harmonic resonance on the tower which is causing enough harmonics to be passed into the transmitter/receiver of the radio's or at least the antenna to briefly cause signal degradation. Bret Robert West wrote: That may be what's going on but they looked steady when I was watching them, but I can't see both ends at the same time obviously. But that's a lot of deflection. I should have a better signal to begin with than the -72 or 73 is sits at, seeing as how it's a short straight shot. When I first put it in I was convinced I was connecting to a side lobe due to the signal but I never could get any better than that. I may be on one and that may explain it but I'll be darned if I could ever find out. Bob- -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Marlon K. Schafer Sent: Wednesday, December 09, 2009 11:39 AM To: WISPA General List Subject: Re: [WISPA] Wind! Cheap antennas will actually bend in the wind. Better than breaking I guess :-). marlon ----- Original Message ----- From: "Robert West" <robert.w...@just-micro.com> To: "'WISPA General List'" <wireless@wispa.org> Sent: Wednesday, December 09, 2009 8:12 AM Subject: [WISPA] Wind! Windy today, supposed to have gusts up to 50mph before days end. I was monitoring some backhaul links, had one bouncing from -72 to -83. Up and down. I'm thinking, uh-oh, got a grid loose someplace, better go fix it now before it gets worse. I go out, first end solid as can be. I even shake the heck out of it, all good. I guess the other end is messed up. Go out, also solid. Look at the laptop, still bouncing. Using pac 28dbi grids with 411 boards R52h cards on both sides. First grid is at 60', second at 100' No trees, heck I can almost see the other end with my naked and cold eye. It's only 4 miles out. Link is normally -72. Maybe junk being tossed up in the wind? That would be a lot ot junk for -10 drop in RSSI I would think. Just sharing. Weird. Robert West Just Micro Digital Services Inc. 740-335-7020 ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/

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