25.5 dBm xmt power at 4096QAM is pretty impressive. I remember several years ago some talk of chipsets would use some sort of predistortion technique to cancel out the distortion in the power amp, is that what is going on in these radios? I don’t remember who the chip vendor was.
From: AF <[email protected]> On Behalf Of Adair Winter Sent: Wednesday, January 15, 2020 12:15 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] Licensed radios and we found that the WTM4200 has 5.5db more system gain then the SIAE AP2 at 4096QAM which had better system gain then some of the other radios on the market. SIAE questions if Aviat is reporting correct numbers but I don't think they are incorrect either.... Even if Aviat's numbers are a bit exaggerated and there was only a 3db difference that's still a whole antennas size! On Wed, Jan 15, 2020 at 12:12 PM Tim Hardy <[email protected] <mailto:[email protected]> > wrote: Yes, as I mentioned previously the system gain of the WTM 4200 at 80 MHz bandwidth, 4096 QAM is 77.5 dBm (threshold is -52.0 dBm and tx power is 25.5 dBm). This provides 7.5 dB more fade margin than the AF-11 at 80 MHz bandwidth, 1024 QAM (system gain 70.5 dBm, threshold -52.5 dBm and tx power is 18.0 dBm) On Jan 15, 2020, at 12:58 PM, Mathew Howard <[email protected] <mailto:[email protected]> > wrote: Based on the required signal levels listed in Aviat's spec sheets, it shouldn't be that hard to achieve 4096QAM. I don't remember what the numbers were off hand, but it was well within what I would expect on a real world link. 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. <image001.jpg> 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 <image002.png> <image003.png> <image004.png> 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 -- AF mailing list [email protected] <mailto:[email protected]> http://af.afmug.com/mailman/listinfo/af_af.afmug.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
