I've been meaning to do a direct comparison between the two, by swapping one of our UBNT 2.4ghz APs to an ePMP and keeping the exact same antennas and everything else... I just need to figure out where I can do it that's going to give me some useful information and not make too many customers angry.
On Thu, Jun 2, 2016 at 4:49 PM, CBB - Jay Fuller <[email protected]> wrote: > > I do not believe we have had both on the same tower. We had diverted to > doing epmp 2.4 not long after it came out as we had lots of problems with > ESD on ubnt 2.4 rockets. Changed some things and they are surviving storms > much better. > > Tests near EPMP vs. tests on other towers (3 miles away? - totally same > environment) just revealed in dramatically different results. Not as much > speed, maybe, but at least we're getting a usable signal up to a mile or > two away. With epmp we're lucky to get a mile way. > > Understand we are in THICK tree country. 900 is still our primary product > > > ----- Original Message ----- > *From:* Mathew Howard <[email protected]> > *To:* af <[email protected]> > *Sent:* Thursday, June 02, 2016 4:31 PM > *Subject:* Re: [AFMUG] PMP450 vs. ePMP > > But does it actually perform worse that UBNT 2.4ghz on the same link, or > is it maybe just differences in how they calculate signal levels? It > doesn't make any sense that two different radios running on the same > frequency putting the same amount of power into the same antennas would > give significantly different signal levels... > > The closest thing I've done to a comparison was playing with a Force 200 > 2.4ghz in wifi mode... there didn't seem to be a significant difference > between it and a PowerBeam connecting to the same AP. > > On Thu, Jun 2, 2016 at 4:10 PM, Josh Luthman <[email protected]> > wrote: > >> And I've tried IT Elite dual pol panels, Force 200 2.4, integrated + >> reflector for CPEs. Continues to suck. >> >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> On Thu, Jun 2, 2016 at 5:08 PM, Ken Hohhof <[email protected]> wrote: >> >>> I’m thinking more the CPE antennas. >>> >>> *From:* CBB - Jay Fuller <[email protected]> >>> *Sent:* Thursday, June 02, 2016 3:59 PM >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] PMP450 vs. ePMP >>> >>> >>> hmm, i will check into that. Pretty sure with ubnt we're using kp >>> performance. With epmp, i think it is bundled antennas... >>> >>> >>> ----- Original Message ----- >>> *From:* Ken Hohhof <[email protected]> >>> *To:* [email protected] >>> *Sent:* Thursday, June 02, 2016 3:50 PM >>> *Subject:* Re: [AFMUG] PMP450 vs. ePMP >>> >>> Jay, I suspect the difference you are seeing may be mainly in the >>> antennas. 2.4 GHz from any vendor should penetrate the same, the radio >>> waves don’t care what brand radio launched them. And I think the >>> difference between the platforms will be most evident in low interference >>> environment where they can achieve their full modulation and throughput. >>> With low SNR, I think it’s kind of like arguing Ferrari vs Porsche for off >>> road racing, neither will be able to show off its capabilities. Receiver >>> sensitivity and bits/sec/Hz won’t matter. >>> >>> >>> *From:* CBB - Jay Fuller <[email protected]> >>> *Sent:* Thursday, June 02, 2016 3:28 PM >>> *To:* [email protected] >>> *Subject:* Re: [AFMUG] PMP450 vs. ePMP >>> >>> >>> Also interested in interference rejection of the pmp450 - is there any >>> (in 2.4) >>> we are getting better foliage penetration with ubnt 2.4 than epmp 2.4 - >>> - and from the performance of >>> the epmp 2.4 i wish wish wish it penetrated better! >>> >>> >>> ----- Original Message ----- >>> *From:* Matt <[email protected]> >>> *To:* [email protected] >>> *Sent:* Thursday, June 02, 2016 2:25 PM >>> *Subject:* [AFMUG] PMP450 vs. ePMP >>> >>> We have mostly PMP100 and PMP450 deployed. Some Ubiquiti we tried and >>> some we inherited as well. Have some ePMP we have tested but so far >>> have not deployed more then couple test links. >>> >>> For those who have tried both ePMP and PMP450 what are the differences >>> you have seen in performance? Interference tolerance among others? >>> >>> For those that have gone with PMP450 over ePMP what was the reasoning? >>> >>> >> >
