In general, yes, that's all quite true. But a couple of other things to keep in mind, are that if the spectrum is available, you can potentially use an 80mhz channel with an AC radio, and get a lot more capacity out of it that way.
In good conditions, you should seem pretty much the same throughput on a Rocket M5 link as an ePMP link, using a 20mhz channel... but on a 40mhz channel, you likely would get better throughput, because the CPU is under powered on the old Rockets. The ePMP also may perform better if the link is less than perfect. But I really wouldn't bother with changing an 11n radio (Rocket M5) for another 11n radio (ePMP 1000)... it's not likely you're going to see enough difference to make it worth the bother. Really, the only reason that I ever use ePMP's for PTP links is when I want to sync them with our PtMP APs... or because we have that's what we have on hand, but if it's strictly a PTP link, there are cheaper options that will work as well or better. On Fri, Jul 6, 2018 at 9:40 AM, Faisal Imtiaz <[email protected]> wrote: > Keep in mind the following rules of physics !... > > 802.11n = 802.11n , 20mhz channel = 20mhz channel. > > Rocket M (5ghz) and Epmp 1000 (5ghz) are both the same class of product, > so for a given link, for the sake of a paper exercise, one would expect > very similar results. > Yes it can be argued that one can possibly eek out something better.. so > let's give it a +/- 10-20% difference between same class of product from > different mfg (just to avoid a flame thread). > > Now, if you were to replace 802.11n with a 802.11ac product, then your > results can be very different (key word .. 'can')... > What does this 'Can' depend on ? it is your SNR, for the particular link. > > To cut a long story short... if on your link you are able to achieve a SNR > of higher than 25, then you will see a HUGE difference in performance gain > by replacing 802.11n radio with a 802.11ac radio......... Now if your SNR > is 20 or below.. then you might not see much performance gain..... > > Having said that.... Yes there are other things that can be done to impact > the SNR increase the gain... (bigger dishes).. or reduce the noise floor > (shielding, better antenna etc). > > in 802.11ac radios.. > you have lots of good choices... > From Ubnt. Rocket AC lite is not to shabbily priced. > > from Mimosa .... you have C5c (you need to download the PTP firmware > from their portal site, to put them in PTP mode.. ) > > You can also go with some more expensive radios.... such as Gen2 AC or > B5c etc. > > Regards. > > Faisal Imtiaz > Snappy Internet & Telecom > http://www.snappytelecom.net > > Tel: 305 663 5518 x 232 > > Help-desk: (305)663-5518 Option 2 or Email: [email protected] > > ------------------------------ > > *From: *"Sam Lambie" <[email protected]> > *To: *[email protected] > *Sent: *Thursday, July 5, 2018 2:23:19 PM > *Subject: *Re: [AFMUG] Long PTP link with epmp. > > I found the planning tool and it looks good to me. How do you like the > Mimosa c5c's as a backhaul? > > On Thu, Jul 5, 2018 at 11:41 AM Rory Conaway <[email protected]> > wrote: > >> There are several options that will be an improvement over the Force >> 200’s for this. The Mimosa C5c can hit as much as 500Mbps or more >> depending on the quality of the link for $130 per radio. >> >> >> >> Rory >> >> >> >> *From:* AF [mailto:[email protected]] *On Behalf Of *Sam Lambie >> *Sent:* Thursday, July 5, 2018 10:13 AM >> *To:* [email protected] >> *Subject:* [AFMUG] Long PTP link with epmp. >> >> >> >> I am looking at being cheap while going long today. We currently have a >> 32 mile 5ghz rocket link with a 29dbi antenna and a the 34dbi antenna on >> each end. We get about 20 mbps fdd out of the link and I am looking at the >> epmp 1000 connectorized gear to replace it for slightly better performance. >> I think according to linkplanner with the Force 200's I would get at least >> 45 mbps out of the link. >> >> Has anyone done a link close to this long? >> >> -- >> >> -- >> *Sam Lambie* >> Taosnet Wireless Tech. >> 575-758-7598 Office >> www.Taosnet.com <http://www.newmex.com> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > -- > -- > *Sam Lambie* > Taosnet Wireless Tech. > 575-758-7598 Office > www.Taosnet.com <http://www.newmex.com> > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > >
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