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Re: [TowerTalk] CMC-230-5K

To: towertalk@contesting.com
Subject: Re: [TowerTalk] CMC-230-5K
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 21 Apr 2016 12:47:06 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Good advice on all counts.

Mobile installations are particularly problematic, because the body/chassis is used as a counterpoise for our antennas, bonding of body and chassis is often flaky (or non-existent, thanks to paint) and the routing and design of interconnecting cables for vehicle systems pay little of any attention to EMC.

73, Jim K9YC

On Thu,4/21/2016 12:39 PM, jimlux wrote:
I choke everything. If it's a wire, and it's near the antenna, it's a potential radiator.

In fact, on my mobile installation, I had worse RFI/EMC problems with the 12V control wires to the tuner and the remote head cable for the radio than with the coax.

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