....... One can always look at something like the Rf Elements Simper Horn antennas... Stacking them close to each other on the mast would not be an issue with them....
:) Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net > From: "Mathew Howard" <mhoward...@gmail.com> > To: "af" <af@afmug.com> > Sent: Tuesday, March 29, 2016 9:16:04 PM > Subject: Re: [AFMUG] mounting brackets / hardware for 4 epmp sectors on a rohn > 45/ > We're only doing 5ghz ePMP at this point, but I wouldn't put APs that close > together unless I really had to anyway... I don't think we have any ePMP > sectors with less than about 3' feet of separation. > On Tue, Mar 29, 2016 at 10:09 AM, Brandon Yuchasz < li...@gogebicrange.net > > wrote: >> I am coming from FSK mostly and a little 450 so forgive my ignorance. With >> FSK >> we still needed 3 wavelengths ( 3 feet ) of separation horizontally in 900mhz >> to keep from self-interfering even with GPS. 3 wavelengths in 2.4 is a little >> more than 14 inches. Are you installing antennas close to each other than >> that >> and finding the GPS deals with it fine? Ideally I would install two antennas >> to >> a pipe using some brackets to stand the antennas off the tower leg. Those >> antennas are going to be awful close to each other. >> Best regards, >> Brandon Yuchasz >> GogebicRange.net >> www.gogebicrange.net >> From: Af [mailto: af-boun...@afmug.com ] On Behalf Of Mathew Howard >> Sent: Tuesday, March 29, 2016 9:59 AM >> To: af >> Subject: Re: [AFMUG] mounting brackets / hardware for 4 epmp sectors on a >> rohn >> 45/ >> Even if you only do two sectors, you still want to do GPS, as that will take >> care of the self interference problem. >> If you can cover all the customers with two 90 degrees, you could just put >> those >> up initially and you can always add the other two later on, if you have the >> need... or you could do two 120's and add a third later on (doing ABC) - but >> you still need to go with GPS radios. >> On Tue, Mar 29, 2016 at 9:52 AM, Brandon Yuchasz < li...@gogebicrange.net > >> wrote: >> I assume you ran this way with some separation on channels? For example used >> 1 >> and 11? I am looking at this as a way to off load line of site and near line >> of >> site 900mhz fsk. We are deploying the 450i 900 as well but anyone I can move >> to >> 2.4 will save me throughput on the 450i not to mention be cheaper to convert. >> Best regards, >> Brandon Yuchasz >> GogebicRange.net >> www.gogebicrange.net >> From: Af [mailto: af-boun...@afmug.com ] On Behalf Of Josh Luthman >> Sent: Tuesday, March 29, 2016 9:48 AM >> To: af@afmug.com >> Subject: Re: [AFMUG] mounting brackets / hardware for 4 epmp sectors on a >> rohn >> 45/ >> 4 90 degree antennas running ABAB with GPS >> Not even a question to be honest. >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> On Tue, Mar 29, 2016 at 10:44 AM, Brandon Yuchasz < li...@gogebicrange.net > >> wrote: >> Just looking for everyone’s experience mounting on Rohn 45 towers. We are >> looking to mount KP sectors on a tower site and want to make sure we have >> enough separation between the antennas. >> I am considering a few options at this site. >> 4 90 degree antennas running ABAB with GPS >> 2 90 degree antennas running AB with no GPS >> 2 120 degree antennas running AB with no GPS >> Right now 180 degrees of coverage just about all customers so 4 antennas is >> not >> required if we go that route it would be more for future needs than anything >> else. >> Just wondering what configurations you all have used in the past for >> situations >> like this and what mounting hardware / stand offs? Anyone just mount two >> antennas right on the tower legs? If so did you have any self-interference >> that >> close together? We have not deployed the epmp line except single sectors at >> this point. >> Best regards, >> Brandon Yuchasz >> GogebicRange.net >> www.gogebicrange.net
