UBNT 900mhz is really only useful if you use the Rockets with Yagis, the locos are mostly useless with the integrated antenna, and the reflector dishes do almost nothing. but in 900mhz you're limited to 36dbm EIRP no matter what, so there's only so much you can do with antennas anyway.
The nice thing about PMP100, is that FSK needs a lot less SNR to run at full modulation than the newer stuff, so you can get away with a lot lower signal levels than you can with an 802.11 based radio. On Mon, Dec 7, 2015 at 10:17 PM, Christopher Gray < [email protected]> wrote: > Based on the configuration examples I've seen, the 9HPn signal is > downconverted from 2.4 GHz. It is in a metal enclosure, but I'm not sure > how much 2.4 finds its way out. I'm under the impression the bandwidth can > be set as low as 2.5 MHz and on up in 0.5 MHz increments. > > I'm in a very hilly low density rural area. My PMP100 installations have > only a few customers (~5 per AP) and I'm not using sync in most locations. > They are in areas where the only competition is DSL and satellite. I > suspect collocation would require huge separation, shielding, or > filtering... but I'm really hoping to find some actual experiences before > taking the time to experiment with it myself. > > I've heard particularly negative things about the UBNT 900 MHz. I've > played with some locos with good results at short ranges, but their limited > power and integrated antenna significantly limit their actual usefulness > (For me, anywhere they are useful, 2.4 GHz is better). > > -Chris > > > On Mon, Dec 7, 2015 at 10:05 PM, Mathew Howard <[email protected]> > wrote: > >> I believe it is downconverted 2.4ghz, like the UBNT 900mhz stuff... but I >> guess it could potentially be downconverted 5ghz too - definitely 802.11N >> based though. I assume it uses the same channel widths as any other 11n >> Mikrotik radio, so I would assume probably 5mhz, 10mhz and 20mhz. >> >> I haven't ever used these things, but I can't see how it could be worth >> the effort of replacing PMP100, My experience with UBNT 900mhz was always >> worse overall than PMP100 (with the exception of PTP links), and I really >> can't see how these could be that much better... especially considering >> they're only 1x1 and UBNT 900mhz gear is 2x2. The most obvious issue being >> that you're going to lose the ability to sync (which may not matter all >> that much in some networks)... I suppose you could turn off sync on all the >> Canopy APs and see how ugly things get. >> >> On Mon, Dec 7, 2015 at 8:46 PM, Jaime Solorza <[email protected]> >> wrote: >> >>> Never heard of it...wonder if they are down converting from 2 or 5 >>> gigs? Remember I shared story of Teletronics 900 AP leaking into 2.4GHz >>> band...revised version fixed that issue. >>> On Dec 7, 2015 7:32 PM, "Eric Kuhnke" <[email protected]> wrote: >>> >>>> What channel widths does this thing use? >>>> >>>> On Mon, Dec 7, 2015 at 5:21 AM, Christopher Gray < >>>> [email protected]> wrote: >>>> >>>>> Any positive experiences using the Mikrotik 9HPn [as a replacement for >>>>> PMP100 900 MHz or otherwise]? >>>>> >>>>> I'm looking to improve throughput for my Canopy PMP100 900 MHz >>>>> customers. I was excited about the 900MHz 450i announcement, but the cost >>>>> is simply too high to justify for my low density deployments at this time. >>>>> >>>>> The sites I'm looking to upgrade are situations where higher >>>>> frequencies are not an option due to the foliage. >>>>> >>>>> So far, I've found very little information from actual users of the >>>>> 9HPn hardware. >>>>> >>>>> Thanks - Chris >>>>> >>>> >>>> >> >
