[TowerTalk] Fwd: Fwd: OWAs or Fans?

[Hans Hammarquist]

I am very fortuned not being surrounded by noise. Next door neighbor is 1000 feet away with no TV or any other RFI source and next neighbor is 1/2 mile away. Wonder if I can make a CM choke for an open feeder. Any idea?


Hans - N2JFS



-----Original Message-----
From: Jim Brown <jim at audiosystemsgroup.com>
To: towertalk <towertalk at contesting.com>
Sent: Thu, Jun 16, 2016 1:19 pm
Subject: Re: [TowerTalk] Fwd: OWAs or Fans?

On Thu,6/16/2016 7:26 AM, Hans Hammarquist via TowerTalk wrote:
> Open wire feeders are simple to use if you know to address a few things


The thing that it is NOT POSSIBLE to address is choking the feedline at 
the feedpoint (that is, where it junctions the dipole). This makes the 
antenna inherently noisy in most parts of the real world. Off-center-fed 
antennas like Windoms are even worse in that regard.

This doesn't mean that they don't radiate -- that's NOT the issue. 
There's nothing wrong with these antennas in concept, only that we as 
hams are surrounded by RF noise sources.

73, Jim K9YC

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