Multipath and/or scintillation. It looks like the sun is shining and 65 degrees in Salem. Sun beating on that metal surface can cause heat waves to rise in front of the antenna causing scintillation. Sometimes this stuff is black magic and moving a CPE a couple feet one way or another can make a world of difference.
No trees or branches in the Fresnel zone waving in the breeze? I'd try adjusting the tilt as suggested, them putting a pipe section in the J mount and moving it up 2.5' or so. Hope you figure it out. Let the list know. At 01:39 PM 9/29/2009, you wrote: >I am curious if anyone thinks this is multipath and has a suggestion on >how to fix. > > > >This just happens to be my dads house, radio mounted to a j-mount on eve >of house, clear LOS to tower <1 mile away, -56 signal. This eve is over >the porch roof to the east and signal shoots over the south plane of the >roof which is an approx 30deg angle. I was over this morning and he is >complaining the Internet is not working and I go in to do some >troubleshooting. I setup a constant ping to the AP and I am getting ><1ms, I start to browse and the pings jump to >300ms and random lost >packets. > >Configure a new radio in the house and have a -75 signal in the house, >try the ping thing again and all seems fine. I replace he radio on the >roof and I am back to the poor ping times again. > > > >Now I don't understand multipath as well I should but it seems to make >sense in this case. Is it possible to reduce or remedy without moving >the radio to a totally different location? > > > >Mark McElvy >AccuBak Data Systems, 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/
