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Re: Extended WiFi link
To: CRTech <crtech@crtech.org>
Subject: Re: Extended WiFi link
From: Mark Croom <markc@newmail.kinshipradio.org>
Date: Thu, 1 Jun 2017 10:59:45 -0500
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My first Ubiquiti link was with Bullet radios and separate antennas, but since then I've been using the PowerBeam and Nanobridge all-in-one products. Yes, you have to send somebody up the tower if a radio goes bad but the convenience of the rest is amazing.

I've got several of these types of systems in use and all are fantastic. I haven't gone over ten miles with one yet though my very first unlicensed IP radio system used Tranzeo radios and 2' Hutton dishes. That ran for years on a 17 mile path until something died after I was no longer employed with the organization and they decided not to troubleshoot and repair the system. If I had my druthers now I would stick a Bullet radio on the feed for each of those antennas and that would probably work just great again.

The thing about using Heliax to connect the Bullet radio to the antenna is that you're in the 5GHz range and loss in the line will be significant, especially for a low-power system. It will also increase the cost of your system by a LOT, at least if you get large enough line to keep your loss low.

So there are trade-offs, but for me the trade-off has been to use the all-in-one radios where you send the shielded CAT5 or CAT6 up the tower. It has worked well for me. I also use Flytec as Kevin does. They have been great and virtually always have what I need in stock. Once recently I had to make a choice *after* placing the order of whether an International radio was OK. It had the US channels and a bunch of channels that are apparently legal elsewhere. So I had to send back a release saying I would not use International channels domestically. No sweat and it avoided waiting a few days for a shipping container full of product to get unloaded.


On Wed, May 31, 2017 at 7:51 PM, Kevin Kidd <kkbroadcastengineering@gmail.com> wrote:

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:


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.
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