I'm not saying this is your issue but I wanted to put this out on the list. I've heard and perhaps seen areas that have a lot of metalic content in the ground which causes reflection. Thoughts anyone? -RickG
On Sun, Apr 26, 2009 at 12:10 AM, Jason Wallace <[email protected]> wrote: > Well, > > There was only a desert floor of dirt between me and the AP about 4 > miles away. Not even any houses to speak of. There were no metal roofs > directly in the way. There WAS a very large steel building perpendicular to > me about 40 feet away. Also, within 2 miles, there's grain silos scattered > around that could cause a reflection. It was either this or it was right at > the edge of Fresnel effects. > > SOLUTION? > > I changed to a CPE with a higher gain (Deliberating 15dbi). I think the > tighter antenna pattern acted like "blinders" to the out of phase signals. > I did not have to move the installation point. 70's db. All is well. > > Thanks everyone, for your encouraging input. > > Jason > > PS. I'm keeping an eye on it... > > Josh Luthman wrote: > > This happens a lot with metal roofs in the way. 10 feet over, around > the mentioned building we go from -90 to -65 > > On 4/25/09, Jack Unger <[email protected]> wrote: > > > You're seeing normal RF behavior. Simply mount the antenna where the > signal is the strongest then use your network monitoring system to keep > an "eye" on it. > > Jason Wallace wrote: > > > Everyone, > > I had trouble during an install today regarding signal strengths. > 2.4Ghz CPE in a location that should be no problem. Moving the CPE two > feet in any direction from the point where the CPE was installed > increased the signal by around 20db (-90 to -70!) > > Any idea of what phenomenon I am dealing with? > > Anything I should consider as I correct this install? > > Jason > > > -------------------------------------------------------------------------------- > 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/ > > > > > > -- > Jack Unger - President, Ask-Wi.Com, Inc. > Serving the Broadband Wireless Industry Since 1993 > Author - "Deploying License-Free Wireless WANs" > Phone 818-227-4220 Email <[email protected]> > > No-cost Wireless Video Training April 23-24 > <http://www.moonblinkwifi.com/trainingcourse.cfm> > > > > > > -------------------------------------------------------------------------------- > 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/
