Yes, I have. Thanks. That is the same thing I had though of the first time around.
Bill Gaylord, President COLI Inc. On 11/5/2010 9:38 AM, Brad Belton wrote: > 15-20db off typically means cross polarization. Have you double and triple > checked they are both on the same polarity? > > Brad > > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Bill Gaylord > Sent: Friday, November 05, 2010 8:13 AM > To: WISPA General List > Subject: [WISPA] Licensed 11ghz Link Issues, Need Advice > > I have a Dragonwave link that was performing about 35-40db lower than the > link budget says it should. I sent tower climbers up to repeak the link and > found they did have it on aligned on a horizontal side lobe. > After re-peaking it got better, but is now about 15-20db lower than the link > budget. It is running about a -52 and the budget calls for a -34. > They did peak the vertical axis, but is it possible that even though both > antennas were mounted plum, that they are aligned on a vertical side lobe. > Like I said, they did say they peaked the vertical, but I don't know if they > did a proper sweep on the vertical because it is not a quick to do as on the > horizontal. They are both plum, but the antennas have about 300ft of > vertical separation at 5 miles. Would difference in height put them in into > a vertical side lobe? I am asking because the 30in antenna's had come > slightly damaged, but it appeared to just be where the raydom attached to > the dish. Dragonwave did not think this would cause an issue. I just need > to know if I need to pay for 2 more tower climbs to re-peak the vertical, or > take down the dishes to return them. Thank you in advance for any advice > that can be given here. By the way, it is our first licensed link, so it is > my first experience with anything above 5ghz. > > Bill Gaylord, President > COLI Inc. > > > ---------------------------------------------------------------------------- > ---- > 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/
