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Wireless install

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n211cr

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I work for a school district that was opening a connection to the MERIT Michigan educational network to a college down the road via wireless. We have a 2.4Ghz wireless link to some buildings off from this building where they were installing a 5.8Ghz panel antenna. The college contracted a company out to install the equipment. Anyhow in watching them setup the cable run and antenna mounting I noticed a few interesting things. First off they ran RG-11 75ohm at a length of about 150 ft. On top of this they put in a connection at the bottom of the tower to connect to the antenna and another patch cable. Instead of using N connectors or something else more common to wireless they used some plain jane compression F jacks on it. Now this link is not going but a mile or a mile and a half but I thought the combo of F connectors, RG11 that far, and being 75ohm to be a bit absurd especially when running 5.8Ghz. The loss there has to be huge. Anyone else find this odd? I know this company also installs 2.4 wireless links and they have ran LMR-400 or LMR-600 on our runs in the past. I am not sure if this would be the college's way of cutting costs and this company allowing it, or if there is something I mised with 75ohm and with the equipment /5.8Ghz band they are using.
 
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mikewazowski

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With RG-11 being used, I bet that they're just feeding IF and power up to a tower mounted RF unit.

We've got 23Ghz hops using LDF-2 runs over 200 feet (and N connectors). The actual 23Ghz RF is generated by a RF unit mounted to the back of the dish. All we're sending up is IF and power.
 
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