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Re: Extended WiFi link
To: CRTech <crtech@crtech.org>
Subject: Re: Extended WiFi link
From: Willie Barnett <wbradiolists@gmail.com>
Date: Fri, 2 Jun 2017 11:21:06 -0400
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In-reply-to: <CAHL64sGVOOopVc1FRMXw--3UcWSYGk4SSsERCrgWckmx91MbQg@mail.gmail.com>
References: <CAOkhgWqJ8oE1XL8JOuXZ-1kQ53FH=6gAU3DimP=PEDTzb_CjZA@mail.gmail.com> <001201d1ef33$b35c5b80$1a151280$@icloud.com> <CAOkhgWpnUVyS7xJdrcDwjvFRY-wzhLbgWy=ZMGLkKFNuMj779A@mail.gmail.com> <bc624cd4-0924-d5c7-d10f-4ec871fec3ec@knlr.com> <CAOkhgWo5Vqgxv9048=xZ2nDRkiBAom2nQd_A2oSu_k08spEoFA@mail.gmail.com> <CAHL64sGVOOopVc1FRMXw--3UcWSYGk4SSsERCrgWckmx91MbQg@mail.gmail.com>
Hey, Kevin! Thanks for weighing-in!

Our hop is about 3300 feet, direct LOS. (We can easily see the transmitter site's STL dish from the studio.)

I was thinking of recommending the all-in-one, but someone raised the point of having the ACTIVE part of the system (AKA: "bullet") inside the building, with just coax & antenna on the tower. Since our hop is so short, the ~100' coax loss shouldn't be too much of an issue. (The tower is only 75' and adjacent to the tx building.)

Not having to have a tower climber come out every time we have a signal issue is a BIG plus! If we have a spare "bullet" on the shelf, then I can try simply swapping that out inside the building. If it solves the problem, "YIPPEE!!" ;) Then we just order a new one for the shelf. :)

The studio end won't be too much of a problem to maintain, as it will be on a small tower at roof level.

I'll look more closely at your link, and pass along the info to my boss. :)

THANKS!

Willie...


On Wed, May 31, 2017 at 8:51 PM, Kevin Kidd <kkbroadcastengineering@gmail.com> wrote:
Willie,

I don't think that is the antenna that you want.  IIRC, that is a dual pol dish with odd connectors to match UBNT's AirFiber products.  I typically use single pol panels or grid reflectors with Type-N connectors when using Bullets but screw the Bullet directly to that connector.  Coax could certainly be substituted between.

An example:

http://flyteccomputers.com/product/1681/L-Com-HG5827EG-58-GHz-27-dBi-Die-Cast-Aluminum-Reflector-Grid-Antenna

How long is your hop?  I have been using UBNT Nanobridges (all-in-one dish/radio) and similar for 5+ mile clear path network hops with very good reliability.  Having the radio on the ground does make sense but the coax loss at 5.8ghz may be an issue.

I typically order this stuff from Flytec Computers.  Mostly because they are in FL and I usually get stuff in 2 days UPS ground but they are very knowledgeable about the products they sell and have saved me from ordering incompatible devices on more than one occasion.  IE, antenna ordered had a goofy reverse TNC connector and the radio ordered had a Type-N...

Regards,


On Wed, May 31, 2017 at 12:51 PM, Willie Barnett <wbradiolists@gmail.com> wrote:
Digging up an old thread... ;) We're once again looking into this system.

I like the idea of keeping the RF system where it's easily maintained! Are these the right parts?




Kevin C. Kidd, CSRE/AMD
Lawrenceburg, TN
AM Ground Systems Company  -  WD4RAT
kkidd@kkbc.com  --  866-22-RADIO -- 866-227-2346
www.amgroundsystems.com

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