I know these aren’t WiFi radios. I wasn’t born yesterday, and this isn’t my first rodeo licensed link.
The “why you have such a hard time believing” is quite simple. I’ve seen links not run at the full modulation the radios are capable of. Sometimes full modulation one direction and less in the other. SNR requirements at > 1024QAM are pretty high, plus xmt power usually needs to be reduced at the highest modulation levels. Not just thermal noise but atmospheric effects, interference, less than perfect XPIC rejection, etc. can make it tough to get the SNR required. I’m not doubting the radios are 4096QAM capable, but being able to consistently achieve that modulation in the field is IMHO pretty impressive. When you said you have three 4096QAM links running, it wasn’t 100% clear whether you meant links with 4096QAM radios, or links achieving that modulation. I guess it’s like the Farmer’s Insurance commercials. We know a thing or two, because we’ve seen a thing or two. You don’t always get the spec sheet numbers in real life. That doesn’t mean the vendor is lying, in fact licensed radios pretty much deliver what they advertise (although you have to watch out for aggregate vs full duplex capacity numbers). It’s more that field results aren’t always the same as lab results. From: AF <[email protected]> On Behalf Of Adair Winter Sent: Wednesday, January 15, 2020 10:46 AM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] Licensed radios I'm not sure why you have such a hard time believing that 4096 QAM is a thing that works. And yes, All of our links that are capable of it are indeed holding that QAM rate. Our links are 4-7 miles. It's not magic, design the link high RSL for the distance and they will do exactly what they are supposed to do. These aren't wifi radios.. On Wed, Jan 15, 2020 at 9:59 AM Ken Hohhof <[email protected] <mailto:[email protected]> > wrote: Just to be clear, the links are actually running at 4096QAM? That’s pretty impressive. But is it like saying you own a 250 mph car? It may be true, but you also may not be able to verify it from personal experience. From: AF <[email protected] <mailto:[email protected]> > On Behalf Of Adair Winter Sent: Wednesday, January 15, 2020 9:46 AM To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Licensed radios Hell ya we do, we have three 4096 QAM links running and about to add one more. It's the only way to go On Wed, Jan 15, 2020 at 9:43 AM Ken Hohhof <[email protected] <mailto:[email protected]> > wrote: You have actual links running 4096QAM IRL? I thought it was more like being able to land a quadruple axel. Once. In practice. OK, define “land”. Walk away? Able to skate again once the cast comes off? But I have to admit my view of licensed backhaul capacity has evolved as video streaming has come to dominate the Internet. Once I thought the only number that mattered was the 5 nines throughput, or worst case 4 nines. But customers stream 24x7 and will raise a much bigger fuss over most-of-the-time speed than over the occasional drop in capacity or even outage. Still, even on 2048QAM radios, actually getting 2048QAM seems like hitting all green lights on the way to work. It’s nice, but you don’t bet your life on it, or cry when you see the modulation drop to 1024QAM for no apparent reason. Or 256 or 512 during heavy rain. Maybe if you have all really short links. We are rural and don’t have that luxury. Most of our links are 6-10 miles. And given that our climate future seems to look like Waterworld, rain cannot be ignored. From: AF <[email protected] <mailto:[email protected]> > On Behalf Of Andreas Wiatowski Sent: Wednesday, January 15, 2020 8:05 AM To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Licensed radios I find the Aviat radios easier to configure…but the Cambium/Ceragon is more of a mature platform. Aviat however does 4096QAM. Internet. Phone. TV. Andreas Wiatowski CEO/Founder Silo <tel:1-866-727-4138,%20ext%20600> 1-866-727-4138, ext 600 | <mailto:[email protected]> [email protected] <http://www.silo.ca/> silo.ca From: AF <[email protected] <mailto:[email protected]> > on behalf of Gino Villarini <[email protected] <mailto:[email protected]> > Reply-To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Date: Wednesday, January 15, 2020 at 4:31 AM To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Licensed radios [EXTERNAL] Right… yeah mind f*** the 820c is a dual core radio… the Bridgewave and Aviat radios that do this are single core… so less $$$ From: AF <[email protected] <mailto:[email protected]> > on behalf of Erich Kaiser <[email protected] <mailto:[email protected]> > Reply-To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Date: Wednesday, January 15, 2020 at 5:16 AM To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] Licensed radios No you can do ACCP on one unit, you just need a combiner that they sell that goes between the dish and radio. Non-Adjacent channels could be an option with two radios but probably would do it with two PTP820S and a combiner. Erich Kaiser North Central Tower [email protected] <mailto:[email protected]> Office: 815-570-3101 On Wed, Jan 15, 2020 at 2:39 AM Gino A. Villarini <[email protected] <mailto:[email protected]> > wrote: Don’t you need an extra radio for this on the 820C? Gino Villarini Founder/President @gvillarini t: 787.273.4143 Ext. 204 m: <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> www.aeronetpr.com | Metro Office Park #18 Suite 304 Guaynabo, PR 00968 <http://www.aeronetpr.com/> From: AF <[email protected]> on behalf of Erich Kaiser <[email protected]> Reply-To: AnimalFarm Microwave Users Group <[email protected]> Date: Wednesday, January 15, 2020 at 2:49 AM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] Licensed radios <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> PTP820C does this its called ACCP. <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> Erich Kaiser <http://www.aeronetpr.com/> North Central Tower [email protected] <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> Office: 815-570-3101 <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> On Tue, Jan 14, 2020 at 4:17 PM SmarterBroadband <[email protected]> wrote: <http://www.aeronetpr.com/> Hi <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> The BridgeWave Navigator states it can have more than 2x80 channels on one dual core radio, however the extra channels have to be adjacent. <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> Do any other vendors do this in 11 and 18GHz Today (no vaporware). And do any have non-adjacent channels? <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> Thanks <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> Adam <http://www.aeronetpr.com/> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <http://www.aeronetpr.com/> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <http://www.aeronetpr.com/> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> <http://www.aeronetpr.com/> -- <http://www.aeronetpr.com/> Adair Winter VP, Network Operations / Co-Owner Amarillo Wireless | 806.316.5071 C: 806.231.7180 http://www.amarillowireless.net <http://www.aeronetpr.com/> -- AF mailing list [email protected] <mailto:[email protected]> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- Adair Winter VP, Network Operations / Co-Owner Amarillo Wireless | 806.316.5071 C: 806.231.7180 <http://www.amarillowireless.net/> http://www.amarillowireless.net <http://www.amarillowireless.net>
-- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
