6 dB difference at the ends? It sounds like the weaker link might be seeing an incidental signal from a reflection source. Have you tried setting the link to 20 MHz or 10 MHz channels? If it is severe multipath a minor change in height may make a big difference. Water tower or big steel building close to the link?
At 01:41 PM 10/7/2009, you wrote: >Yeah, we flipped polarity. It's an 802.11n link, so shouldn't "matter" but >changed anyway. No difference. Tried chain 0, chain 1, chain 0+1, no >difference. > >Cables came from Tessco, are brand Wireless Solutions I think. 3' long. >Times cable, but look like RFI connectors. The bag they came in said >"professionally assembled and tested" - we've used the same on other sites >without issue. > >The feed assembly looks to be in correctly. Not much way to screw that up >on these antennas. My concern of one being bad or something is related to >the fact that 2-degrees on one end, and 8-degrees on another seems really >odd. > >lol, I don't think the other site is further down than this site is up. > >Jayson > >On Wed, Oct 7, 2009 at 12:39 PM, Randy Cosby <[email protected]> wrote: > > > I assume you checked for reverse polarization? > > > > > > > > Jayson Baker wrote: > > > Got back to both ends of our WB 5.8GHz links today. > > > > > > RadioMobile says it's 10km, we should have 5-degrees up/down tilt, and > > using > > > the WB dishes see -59dBm. > > > > > > We're seeing only -80dBm on both polarities. > > > > > > Cables are new, professionally made and tested. Pigtails are new, > > tested. > > > Radios are new, tested. > > > > > > WB dishes... on one end, we have up-tilt of about 2 degrees. > > > On the other end, we have down-tilt of about 8 degrees. > > > Moving a couple degress each way (or, setting both at 5, like RM says) > > gets > > > almost no signal at all. > > > > > > One is WB 58DP, one is the same, but with the high-performance shroud. > > > > > > Any thoughts? Bad antenna on one end? > > > > > > Jayson > > > > > > > > > > > > -------------------------------------------------------------------------------- > > > WISPA Wants You! Join today! > > > http://signup.wispa.org/ > > > > > > -------------------------------------------------------------------------------- > > > > > > WISPA Wireless List: [email protected] > > > > > > 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: [email protected] > > > > 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: [email protected] > >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: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
