Curious Is 24 GHz subject inversion problems?
How far could a AirFiber 24 go if you don't account for rain fade? ----- Original Message ----- From: RickG To: Ubiquiti Users Group Sent: Wednesday, October 22, 2014 8:02 PM Subject: Re: [Ubnt_users] Airfiber 24 or 5 Ya, the 3 times my link dropped it rained so hard it reminded me of Florida :) On Wed, Oct 22, 2014 at 10:48 PM, Faisal Imtiaz <[email protected]> wrote: Let's put this into context... Rain fade varies from place to place, region to region, you can find specifics about your area via ITU rain fall charts. South Florida is listed as Rain Fall 'n' region, part of the worst group on the charts 24Ghz, is affected by size of the rain drops and how 'hard' it rains.. (how fast it rains... rain speed ?) e.g looking at attenuation on 24ghz due to rain, at 2km, it is 0.4db for 1.25mm/hr rain fall, however for the same distance it jumps to 8db for 25mm/hr rainfall. FYI Rain Zone N can have rainfall between 5mm/hr to 180mm/hr !) Airfiber24, will drop link somewhere about -80/-80... So if you short link has a -40 or -38 signal, then you have 40db to play with before it drops.. Lots of factors that go into this, and above is a summary listing of what they are... This is the reason why, one simply must keep the location in mind, before comparing someone else's experience... (unless of-course that someone else is in the same rain fall region). As we say ... YMMV ! :) Regards Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: [email protected] ---------------------------------------------------------------------------- From: "Clay Stewart" <[email protected]> To: "Ubiquiti Users Group" <[email protected]> Sent: Wednesday, October 22, 2014 10:26:58 PM Subject: Re: [Ubnt_users] Airfiber 24 or 5 Have AF24 links from .5 to 1 mile and have seen zero rain fades so far. Set at just under 800Mbps. On Oct 22, 2014 4:58 PM, "Daniel Peoples" <[email protected]> wrote: I've always wanted to ask this, but if it's across a street and its high enough, why can you just get a piece of aerial fiber and a bow and string it? Daniel Peoples Resonance Broadband Resonancebroadband.com 918-429-3620 On Wed, Oct 22, 2014 at 3:55 PM, Adair Winter <[email protected]> wrote: I didn't read this right. I missed minimum. oops! On Wed, Oct 22, 2014 at 3:49 PM, Kees H <[email protected]> wrote: What is the minimum distance for either one of those? Have a request for 2 (large) buildings across a street. _______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users -- Adair Winter VP, Network Operations / Owner Amarillo Wireless | 806.316.5071 C: 806.231.7180 http://www.amarillowireless.net _______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users _______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users _______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users _______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users -- -RickG KyWiFi ------------------------------------------------------------------------------ _______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users
_______________________________________________ Ubnt_users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/ubnt_users
