Multipath interference from the tree.
On Mon, Oct 26, 2009 at 10:01 PM, John Vogel jvo...@vogent.net wrote:
So... I have a customer, been on for a couple of years now. The CPE on
their home quit working. I go to check it out, log into the CPE from
their computer, everything looks good, except
Or the tree is no longer blocking multi-path interference.
Jayson Baker wrote:
Multipath interference from the tree.
On Mon, Oct 26, 2009 at 10:01 PM, John Vogel jvo...@vogent.net wrote:
So... I have a customer, been on for a couple of years now. The CPE on
their home quit working. I go
The terrain between the AP and the CPE is such that I would ordinarily
consider it a slam-dunk. Standing there on the ground next to the house
and looking at the (almost) clear view of the tower, with nothing in
between that I would consider to be capable of creating multi-path
reflections, my
and
thereby avoiding a multipath bounce.
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of John Vogel
Sent: Tuesday, October 27, 2009 10:27 AM
To: WISPA General List
Subject: Re: [WISPA] Would like to purchase some RF glasses
The multipath you are describing is that in which the signal arrives
from two paths slightly out of phase.
If the path length of the reflected signal is just right, the signal
arrives 180 degrees out of phase, thus canceling the direct signal.
Google Moire Pattern for examples of how this
Actually, while Moire is relavent, this wiki page does a better job.
http://en.wikipedia.org/wiki/Interference_%28wave_propagation%29
Notice just above the Examples heading, the 2 waves combine to produce a
zero net result.
Scott Reed wrote:
The multipath you are describing is that in which the
It's possible, too that the tree was helping you by adding a diffracting
object to the path. I once saw a uW link in Germany that had to go over
a sharp mountain peak. There was no way to get a repeater or even a
reflector up there, so they used the peak to diffract the signal to the
other
