That really depends Rick. The down side to an omni is that it picks up noise from all directions. In some places though, there isn't that much noise so it's no big deal.
They are also low gain so they don't "hear" the noise as well. Here's a question for you. Which system will see more known noise, three omni antennas 10 miles apart, or three sectors on the same tower? marlon ----- Original Message ----- From: "RickG" <[email protected]> To: "WISPA General List" <[email protected]> Sent: Tuesday, June 30, 2009 6:19 PM Subject: Re: [WISPA] Antenna Recommendations You taught me Marlon :) What I take home from you is: Stay away from omni antennas unless they are low gain. Sectors are better. Keep power low. No amps. etc, etc. Doesnt using an omni to go 15 miles invite a lot of interference? (Still learning) -RickG On Tue, Jun 30, 2009 at 12:32 PM, Marlon K. Schafer<[email protected]> wrote: > roflol > > We routinely go 15 or more to an omni. And we don't use amps and rarely > even go all the way up to 36 watts eirp. > > Overall system design is important. Not just big omnis and amps.... > > Maybe I need to get out there and do some consulting work again? sheesh > Who's been teaching people for the last 2 or 3 years? > > marlon > > ----- Original Message ----- > From: "Robert West" <[email protected]> > To: "'WISPA General List'" <[email protected]> > Sent: Monday, June 29, 2009 3:13 PM > Subject: Re: [WISPA] Antenna Recommendations > > > 10 is a dream........... I know. But been thinking of going sector. Not > many users there at the moment but replacing the antennas may be a good > reason to upgrade the whole mess. Really only need a good 3 to 5 miles but > further is always better for redundancy. > > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of RickG > Sent: Monday, June 29, 2009 1:32 PM > To: WISPA General List > Subject: Re: [WISPA] Antenna Recommendations > > I wouldnt use an omni to go 10 miles. Why not sector? > -RickG > > On Mon, Jun 29, 2009 at 12:31 PM, Robert West<[email protected]> > wrote: >> Would like to get 10 miles out of it for overlap but can go less. >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of RickG >> Sent: Sunday, June 28, 2009 11:42 PM >> To: WISPA General List >> Subject: Re: [WISPA] Antenna Recommendations >> >> How far do you need to go? >> -RickG >> >> On Sun, Jun 28, 2009 at 2:24 PM, Robert West<[email protected]> >> wrote: >>> I'm in need to replace some older Omni antennas, 2.4 and 5.8, to connect >> to >>> a Mikrotik 600a. Running the R52H cards for both bands with a dish for >> the >>> 5.8 backhaul.. I'm not in the mood to experiment with the unknown, any >>> recommendations on what is working for you? And what doesn't! Land is >>> flat, rural farmland, small scattering of trees. We're up 70 feet in > this >>> location. >>> >>> >>> >>> Thanks! >>> >>> >>> >>> Robert West >>> >>> Just Micro Digital Services Inc. >>> >>> >>> >>> >> > ---------------------------------------------------------------------------- >> ---- >>> 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! 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