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Re: [IRCA] [NRC-AM] Building a "state of the art" MW DX station
- Subject: Re: [IRCA] [NRC-AM] Building a "state of the art" MW DX station
- From: "Craig Healy" <bubba@xxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 3 Jan 2012 07:31:51 -0500
Understood. I'm thinking of investing in some DX Engineering "Receive
Feedline Current Chokes" DXE-RFCC-1 which retail for $64.95 each. I'm
hoping this will eliminate any common-mode noise along the feedline. Plan
is to place one near the antenna, and another near the receiver.
There have been a lot of experiments on eliminating noise captured by the
antenna feed line. I've tried toroid filters, as have other people. One
thing that does show a good improvement is using a balanced line instead.
Many use speaker cable, twisted, and with baluns at each end. I've used
CAT5 ethernet cable and found a noticeable improvement of lower noise and
also less ingress of radio signals not from the antenna itself.
Speaker cable is used by a lot of serious antenna experimenters. The baluns
are easy to make and not expensive. I'd recommend trying that instead of
coax cable from the antenna to the receiver.
Craig Healy
Providence, RI
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