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 <[email protected]> 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:[email protected]] *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 <[email protected]> > 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:[email protected]] *On Behalf Of *Josh Luthman > *Sent:* Tuesday, March 29, 2016 9:48 AM > *To:* [email protected] > *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 <[email protected]> > 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 > > > > > > >
