Tim, Below the concrete support beam sounds perfectly OK and yes, a patch can be mounted against a wall. Of course, the patch has a directional radiation pattern so it isn't typically radiating off the back and into the wall. Once in a while, a patch (or panel) antenna mounted flat against a large metal wall will exhibit anomolous behavior and need to be moved a few feet off
(in front of) the wall. jack [EMAIL PROTECTED] wrote: > Thanks Jack. The antenna will be free from obstructions, sticking out > below a concrete support beam. That was my problem, the customer > wanted to mount the 'Mast - mounted' antenna pointed upwards. They > would then radiate right into the support beam. I alway try to put the > omni's right out in the middle with out obstructions and not againt a > wall, that is what a patch is for? Correct? > > Thanks again > > Tim > > > Montag, 19. April 2004 01:35 > To: [EMAIL PROTECTED] > cc: > From: Jack Unger <[EMAIL PROTECTED]> > Subject: Re: [SOCALWUG] Antenna Orientation > > Tim, > > No problem with the polarization however if in pointing the "mast" > omni > downward, > it "overlaps" the metal pole then the omnidirectiional radiation > pattern is > going to have > a "null" in the direction towards the pole. If the pole were > non-metalic then no > problem. > > jack > > > kwyjitim wrote: > > > Hello, > > > > I have a question regarding Antenna orinentation. Lets say I have a > certain > > antenna that is designed to be hung from the ceiling. That is it is > pointed > > down. I then have another antenna, which is designed to be mounted > on a > > mast, and or pole. Now I know that either is physically the same > antenna, > > both 'Verticial' polarized etc.... > > > > Would there be a problem if I mounted the 'mast' Omni pointed down? > Is there > > a change in the patteren? > > > > Thanks > > > > Tim > > > > -- > > NEU : GMX Internet.FreeDSL > > Ab sofort DSL-Tarif ohne Grundgeb�hr: http://www.gmx.net/info > > -- > Jack Unger - President, Ask-Wi.Com, Inc. > Author of the WISP Handbook - "Deploying License-Free Wireless WANs" > http://www.ask-wi.com/book.html > True Vendor-Neutral WISP Training-Troubleshooting-Consulting > http://www.ask-wi.com/services.html > Email: [EMAIL PROTECTED] Phone: (818) 227-4220 > > -- Jack Unger - President, Ask-Wi.Com, Inc. Author of the WISP Handbook - "Deploying License-Free Wireless WANs" http://www.ask-wi.com/book.html True Vendor-Neutral WISP Training-Troubleshooting-Consulting http://www.ask-wi.com/services.html Email: [EMAIL PROTECTED] Phone: (818) 227-4220
