[Top] [All Lists]

Re: Topband: RF choke/balun

To: Rob Atkinson <>
Subject: Re: Topband: RF choke/balun
From: Charles Moizeau <>
Date: Sun, 17 Sep 2017 01:42:52 +0000
List-post: <>
That could be true, but for several years my inverted L (86 feet up and 68 feet 
out, over 1.5 miles of in-ground radials) is significantly less noisy on 
receive than my 270-foot center-fed dipole sloping (intentionally) from 83 feet 
to 7 feet.

Your comments please.


Charles, W2SH

From: Topband <> on behalf of Rob Atkinson 
Sent: Saturday, September 16, 2017 8:40 AM
To: Arthur Delibert
Subject: Re: Topband: RF choke/balun

Unless you like listening to noise you don't use an inverted L on 160
(or 80) for receiving.


On Sat, Sep 16, 2017 at 6:58 AM, Arthur Delibert <> wrote:
> I think that’s right if the only issue is your own transmit signal bouncing
> back from the antenna junction and traveling along the exterior of the
> feedline.  But for receiving, I think a choke at each end of the feedline is
> important unless you’re in an exceptionally low noise location.  K9YC
> recommends putting a choke at the antenna end of the feedline, and I’ve
> found it makes quite a difference in the amount of local noise on the
> received signal.  If I understand it right, the outside of the feedline
> picks up the noise signal and carries it to the antenna junction, from where
> it gets mixed in with the desired signal.
Topband Reflector Archives -
Topband Reflector Archives -

<Prev in Thread] Current Thread [Next in Thread>