Yeah, true. I couldn't remember if adding the second polarity changed the licensing cost or not... if it doesn't then, it's well worth it, unless the channels aren't available.
On Tue, Aug 15, 2017 at 5:12 PM, Chuck McCown <ch...@wbmfg.com> wrote: > Yeah, not too worried about the dupler/diplexer cost. If licensing is the > same, why not. > > *From:* Jon Langeler > *Sent:* Tuesday, August 15, 2017 4:11 PM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] AF-11x > > I like using both polarities to maximize Rx sensitivity. Coordination is > the same cost. Duplexers are also not that much more. > > Jon Langeler > Michwave Technologies, Inc. > > > On Aug 15, 2017, at 5:59 PM, Mathew Howard <mhoward...@gmail.com> wrote: > > Max channel bandwidth is 56mhz, but you should easily be able to get > 250Mbps out of a 40mhz channel... I'm not sure there's much point in going > in narrower than that. Actually, doing SISO at a 56mhz channel might make > more sense, that should get around 275mbps at 256qam (and a bit more if the > link will do 1024qam, obviously), but then you'd only need a one polarity, > so it may save a bit on coordination, and you wouldn't need to buy the > extra duplexers. > > On Tue, Aug 15, 2017 at 1:34 PM, Chuck McCown <ch...@wbmfg.com> wrote: > >> What is a common channel BW? 40 MHz? I suppose it depends on >> congestion. I only need about 250 Mbps so lower order modulation may be >> desirable and perhaps narrower channels too. >> >> *From:* Jeremy >> *Sent:* Tuesday, August 15, 2017 10:54 AM >> *To:* af@afmug.com >> *Subject:* Re: [AFMUG] AF-11x >> >> Of course, the exact configuration is based on your license and which >> frequencies it is supposed to operate on. The above configuration is just >> an example. >> >> On Tue, Aug 15, 2017 at 10:53 AM, Jeremy <jeremysmi...@gmail.com> wrote: >> >>> They are like that, but 3x bigger. On top, the lid comes off and the >>> duplexers go beneath the cover. If your link is 'High' then you will want >>> 'High' duplexers for both sides of the link (x4 total - two extra to >>> purchase) - they will go in a configuration like 1-3-3-1 on one side and >>> 3-1-1-3 on the other side. >>> >>> On Tue, Aug 15, 2017 at 10:11 AM, Mathew Howard <mhoward...@gmail.com> >>> wrote: >>> >>>> They come with 1 duplexer (setup for SISO) - you need to buy the second >>>> one separately to do MIMO. You do need to figure out what frequencies >>>> you're going to be using before you buy the radios, since there are two >>>> different duplexers, depending on which half of the band you're in. >>>> You need one frequency pair on both polarities (for MIMO). >>>> >>>> On Tue, Aug 15, 2017 at 10:52 AM, Chuck McCown <ch...@wbmfg.com> wrote: >>>> >>>>> Do they all come with two N connectors or do you have to pay more for >>>>> duplexers? Not quite sure how to buy or license. I guess you have to >>>>> have >>>>> two pairs of frequencies? Or at the very least, both polarizations on the >>>>> same frequency? >>>>> >>>>> Trying to collect some budgetary estimates on what my project is going >>>>> to cost. >>>>> >>>> >>>> >>> >>> >> >> > > >
