They apparently expect you to buy it, hang it and then try it.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ----- Original Message ----- From: "Ty Featherling" <tyfeatherl...@gmail.com> To: af@afmug.com Sent: Monday, January 12, 2015 2:27:58 PM Subject: Re: [AFMUG] Af5 I'm having the same problem with RocketAC. I'm trying to plan a link and can't even figure how much capacity I can get at that distance with the existing noise floor. It makes it hard to select the right tool for the job without all the info. -Ty On Mon, Jan 12, 2015 at 2:00 PM, Mike Hammett < af...@ics-il.net > wrote: Matt, that doesn't really help. In many areas, my noise/interference/whatever is -75. If I knew how much margin was required per modulation, I could figure out how much signal I need for that speed. I can't do that with your published numbers. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ----- Original Message ----- From: Matt Hardy < m...@ubnt.com > To: af@afmug.com Sent: Mon, 12 Jan 2015 12:42:52 -0600 (CST) Subject: Re: [AFMUG] Af5 Hi Mike, The numbers in our datasheet do convey the SNR (which assumes AWGN for noise value); this is pretty standard among all our datasheets. The noise floor value varies based on channel BW, so a rough estimate for noise floor would be (50MHz=-97dBm, 40=-98dBm, 30=-99dBm, 20=-101dBm, 10=-104dBm). As far as transmit power / modulation, all modulations up to 64QAM can run at full transmit power. 256QAM is ~2dB lower, and 1024QAM is something like 4dB lower (it depends on other external factors). All of this and more is already provided with the integrated link configuration tool, including channel bandwidth, duplex frequency spacing, TX power and a bunch of other stuff. It's recommended to use this tool to configure links because of all of the additional factors. But if you need to run a simple link calc to estimate a link's performance at certain distance, you should have enough info. Hope that helps... -Matt On Sat, Jan 10, 2015 at 10:06 AM, Mike Hammett < af...@ics-il.net > wrote: > Not at all, Matt. Those are receive sensitivities. > > > The left side of this picture is needed for the airFibers. You publish the > right side only. > > > This information is also not available for the airFibers. > > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > ------------------------------ > *From: *"Matt Hardy" < m...@ubnt.com > > *To: * af@afmug.com > *Sent: *Friday, January 9, 2015 5:34:43 PM > *Subject: *Re: [AFMUG] Af5 > > This? > [image: Inline image 1] > > On Thu, Jan 8, 2015 at 5:18 PM, Mike Hammett < af...@ics-il.net > wrote: > >> Hard to tell because they won't publish their Tx and SNR requirements. >> I'd just make educated guesses and plug it into a path calc. >> >> BTW: Ben, Matt... where are those numbers? >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> >> ------------------------------ >> *From: *"Craig House" < cr...@totalhighspeed.net > >> *To: * af@afmug.com >> *Sent: *Thursday, January 8, 2015 3:24:58 PM >> *Subject: *[AFMUG] Af5 >> >> I have used some AF 24 hours but no AF5 for backhaul yet what is the max >> distance people are seeing for the AF 5 at full modulation >> >> Sent from my iPhone >> >> > >
