I believe specs say 2 miles or less for 24GHz

 

From: [email protected] [mailto:[email protected]] On
Behalf Of Kees H
Sent: Wednesday, October 22, 2014 10:10 PM
To: Ubiquiti Users Group
Subject: Re: [Ubnt_users] Airfiber 24 or 5

 

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 <mailto:[email protected]>  

To: Ubiquiti Users Group <mailto:[email protected]>  

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

 

 <http://Resonancebroadband.com> 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.
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-- 

Adair Winter
VP, Network Operations / Owner
Amarillo Wireless | 806.316.5071
C: 806.231.7180
 <http://www.amarillowireless.net> http://www.amarillowireless.net

 


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-- 
-RickG KyWiFi 

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