60 GHz has very different atmospheric performance than 71-86 GHz FDD. 2 miles at 80 GHz with 60cm/2' dishes is pretty normal now. The peak in this chart right at 60 GHz is one of the reasons why it's unlicensed.
http://forum.flitetest.com/attachment.php?attachmentid=36164&d=1418680522&thumb=1 On Tue, Jun 27, 2017 at 7:06 PM, Jaime Solorza <[email protected]> wrote: > I have installed 2 mile 80GHz links at Fort Bliss several years ago..I am > sure newer technology will improve fade margin. > > Jaime Solorza > > On Jun 27, 2017 8:01 PM, "Eric Kuhnke" <[email protected]> wrote: > >> 60 GHz PtMP at 1-3 miles? I want some of whatever you're smoking because >> it must be some primo stuff. If you put up a few 500 to 800 meter distance >> 60 GHz PTP links and monitor them over a multi month period, you'll see >> that you really don't want to go much longer than that. I can't imagine >> that the gain of the Ignitenet 60 GHz sector antenna is much better than a >> typical 25, 30 or 60cm parabolic antenna used for 60 GHz PTP stuff. >> >> If I had to guess the 60 GHz PtMP will be reliable at distance of more >> like 400-500 meters, tops, with properly aimed CPEs. >> >> On Tue, Jun 27, 2017 at 6:52 PM, Adam Moffett <[email protected]> >> wrote: >> >>> What IgniteNet is selling is a 60ghz PTMP with a built in 5ghz backup >>> radio. It's understood that the 60ghz connection will go down due to rain >>> fade, but the built-in 5ghz backup should keep the customer trucking (with >>> reduced capacity). I think you'd be installing at ranges of 1-3 miles for >>> the 60ghz to run at decent MCS, and at that range I think you'll still get >>> decent capacity out of the 5ghz. You'll get a lower speed test, but I'd >>> bet it's possible to design so that Netflix keeps running. >>> >>> >>> ------ Original Message ------ >>> From: "Chuck McCown" <[email protected]> >>> To: [email protected] >>> Sent: 6/27/2017 11:38:32 AM >>> Subject: Re: [AFMUG] So Silicon Valley WISP startup gets $7M investment? >>> >>> 1. What is acceptable downtime on pure 60GHz. It is possible to >>> engineering it to practically no downtime although less economical. >>> >>> >>> Zero. If it goes down the phone will ring. With a well designed and >>> installed Canopy system there was no downtime. >>> >>> >>> 2. What is the acceptable backup bandwidth? If there is at least SOME >>> internet available during 4-5" rains, is that acceptable? >>> >>> If you are talking about something built in, then the acceptable backup >>> is whatever fools the customer into thinking that Netflix is not impacted. >>> >>> >>> >>> >>
