I believe that is taken into account with 'rain fade' which is a very loose board variance.. thus the arguments / conversations which tend to be more anecdotal than anything else.
:) Faisal Imtiaz Snappy Internet & Telecom http://www.snappytelecom.net Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net > From: ch...@wbmfg.com > To: af@afmug.com > Sent: Saturday, January 20, 2018 11:33:35 AM > Subject: Re: [AFMUG] Quick comparison between 80GHz and AF24 > How about droplet size and shape vs wavelength and polarization? > From: Faisal Imtiaz > Sent: Saturday, January 20, 2018 9:07 AM > To: af@afmug.com > Subject: Re: [AFMUG] Quick comparison between 80GHz and AF24 > We have two things to contend with... > one is Oxygen Absorption > second is Rain Fade > Science says, 24ghz has much less O2 absorption fade vs 80ghz > Science also says that 24ghz has slightly less Rain fade vs 80ghz > Science also says that if on a particular link, if one is comparing 24ghz vs > 80ghz, the difference in which link drops first will be based on the TX power > / > Antenna Gain and Rx sensitivity. > If all things were exactly the same, then 80ghz would drop before 24ghz in > Rain > event. > But in reality, all things are not the same.. I believe 80ghz one is allowed > more power, and higher antenna gain. > https://www.e-band.com/index.php?id=86 > https://www.linkedin.com/pulse/dont-fall-siklu-overbuilds-distance-claims-david-theodore > at 3.5miles, one is pushing the limits of both 24gzh as well as 80ghz.. > Depending on what you are trying to achieve, and the rainzone, you can make > your choice based on what will perform better normally... cause both of them > will go out in rain :) > Best of Luck > Faisal Imtiaz > Snappy Internet & Telecom > http://www.snappytelecom.net > Tel: 305 663 5518 x 232 > Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net >> From: "Mathew Howard" <mhoward...@gmail.com> >> To: "af" <af@afmug.com> >> Sent: Friday, January 19, 2018 8:42:31 PM >> Subject: Re: [AFMUG] Quick comparison between 80GHz and AF24 >> I'd guess 24ghz would be slightly better, but either one is going to drop at >> that distance if you ever get heavy rain. >> Somebody from Siklu told me at one time, that some of their customers have >> told >> then that their rainfade is slightly better than an AF24, but slightly worse >> than an AF24HD... how accurate that is, I don't know. >> On Jan 19, 2018 6:03 PM, "Rory Conaway" < r...@triadwireless.net > wrote: >>> I haven’t run the numbers so please save me some time. Which one has less >>> fade >>> margin at 3.5 miles? I was going to use Siklu with a 2’ antenna. >>> Rory Conaway • Triad Wireless • CEO >>> 4226 S. 37 th Street • Phoenix • AZ 85040 >>> 602-426-0542 >>> r...@triadwireless.net >>> www.triadwireless.net >>> “"Engineers believe that if it ain't broke, it doesn't have enough features >>> yet." — Scott Adams
