RE: [SOCALWUG] Antenna Orientation

[Larry Feige]

Depending on how high the ceiling is, consider using the lowest gain you think you can.  The lower the gain, the more the pattern looks like Mickey Mouse ears and the better the coverage below the antenna.  If you are using multiple antennas, they may work best.   Larry Feige Electro-Comm West, Inc. 7131 Hayvenhurst Ave. Van Nuys, CA  91406 818-994-4455   FAX  818-994-2269 www.ecwest.com   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of [EMAIL PROTECTED] Sent: Monday, April 19, 2004 6:12 AM To: [EMAIL PROTECTED] Subject: RE: [SOCALWUG] Antenna Orientation   Thats another good point Larry, thanks! But these antenna will not be mounted outdoors, they will be insalled in a warehouse type of building. Tim Montag, 19. April 2004 15:17 To: <[EMAIL PROTECTED]> cc: From: "Larry Feige" <[EMAIL PROTECTED]> Subject: RE: [SOCALWUG] Antenna Orientation The other problem you could run into w/ an inversely mounted antenna is collection of condensation.  Some antennas have a "weep" hole at the bottom to allow condensation to get out.  Inversely mounted, it would collect in the antenna.  Some manufacturers, if they are aware of how you are going to mount the antenna, will compensate for this.  Condensation collection can also happen if you weather seal your connector and inadvertently cover the "weep" hole.   Larry Feige Electro-Comm West, Inc. 7131 Hayvenhurst Ave. Van Nuys, CA  91406 818-994-4455   FAX  818-994-2269 www.ecwest.com   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of [EMAIL PROTECTED] Sent: Monday, April 19, 2004 2:05 AM To: [EMAIL PROTECTED] Subject: Re: [SOCALWUG] Antenna Orientation   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