You know what really sucks for multipath? Heavy rain on frozen ground, sits there and freezes into a big skating rink out in the fields, and stays there until spring thaw. Like a big RF mirror.
Other than that, RF seems to like winter. From: Daniel White Sent: Friday, October 30, 2015 6:52 AM To: af@afmug.com Subject: Re: [AFMUG] Airfiber 24 HD +1. The other benefit to snow vs. rain is the droplet size (a rain drop is closer to the wavelengths we use vs. a snowflake). Snow actually causes two different issues typically than fade thru Free Space. First, depending on the geometry of the link, may cause multipath where snowless conditions do not have it and two (and more likely) melting snow built up on the antenna and re-freezing builds ice on the radome and causes fade. Thank you, Daniel White afmu...@gmail.com Cell: +1 (303) 746-3590 Skype: danieldwhite Social: LinkedIn: Twitter From: Af [mailto:af-boun...@afmug.com] On Behalf Of Eric Kuhnke Sent: Thursday, October 29, 2015 9:44 PM To: af@afmug.com Subject: Re: [AFMUG] Airfiber 24 HD Snow in the air actually causes a lot less fade at =>11 GHz than the equivalent amount of rain. Even wet snow is relatively "dry" when it's in the air until it hits surfaces and starts congealing. On Thu, Oct 29, 2015 at 6:33 PM, Jeremy <jeremysmi...@gmail.com> wrote: Seriously though, how does that perform in wet, heavy snow at 3.5 miles? I can't imagine it would be good. I am in Utah too. Am I wrong for engineering all of my 24GHz links at less than one mile? On Thu, Oct 29, 2015 at 5:12 PM, Work <timothy.pct...@gmail.com> wrote: Dont know if @UBNT-Chuck wants to chime in here but you may want to take a look at what going on with the 3.2 beta on the forum it might be more just for AFX though not real clear on that — Sent from Mailbox On Thu, Oct 29, 2015 at 6:51 PM, Faisal Imtiaz <fai...@snappytelecom.net> wrote: Cannot speak for the link calculator, but I can share with you the following:- 1) -64/-65 is the right signal level for a link distance of 3.5 miles 2) yes the chains should be balanced (all of them the same or +/- 1-2db), your one side is rather off ... (when you have them just right, it does take a bit of patience, each side of the chain should be similar or the same +/- 1db 3) you might want to reduce the RX gain to low, and or if you leave the gain high, try reducing the power one 1db at a time... to get the full 8x modulation... Best of Luck 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: supp...@snappytelecom.net -------------------------------------------------------------------------- From: "Sterling Jacobson" <sterl...@avative.net> To: af@afmug.com Sent: Thursday, October 29, 2015 6:30:07 PM Subject: Re: [AFMUG] Airfiber 24 HD Ooops, wrong image, lol! This is the one that I thought I attached, but didn’t show up as an attachment. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Faisal Imtiaz Sent: Thursday, October 29, 2015 4:23 PM To: af@afmug.com Subject: Re: [AFMUG] Airfiber 24 HD You Sure ? Here is attached proof... doing max of 47G x 9.42G on a 100meg port ! LOL! 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: supp...@snappytelecom.net ------------------------------------------------------------------------ From: "Josh Luthman" <j...@imaginenetworksllc.com> To: af@afmug.com Sent: Thursday, October 29, 2015 6:15:02 PM Subject: Re: [AFMUG] Airfiber 24 HD Somehow I really doubt you got 8.4gbps on a gigabit port. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Thu, Oct 29, 2015 at 6:13 PM, Sterling Jacobson <sterl...@avative.net> wrote: Sorry, this was the picture of the link in question. What should I be seeing? -----Original Message----- From: Af [mailto:af-boun...@afmug.com] On Behalf Of Sterling Jacobson Sent: Thursday, October 29, 2015 4:00 PM To: 'af@afmug.com' <af@afmug.com> Subject: [AFMUG] Airfiber 24 HD Is there a good link estimation utility for the Airfiber 24 HD? I like the UBNT online link calculator, but it doesn't work with 24Ghz? This is the link I just put up, shouldn't the chains all be about equal dB? What does it mean when the second chain is so much different from the first on these units? Don't even know if the dB is dialed in at this range :( -------------------------------------------------------------------------------- This email has been checked for viruses by Avast antivirus software. www.avast.com
