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Re: [RFI] RF Choke Insertion Loss?

To: rfi@contesting.com
Subject: Re: [RFI] RF Choke Insertion Loss?
From: Bert <balmemo@sympatico.ca>
Date: Thu, 22 Apr 2021 15:42:19 -0400
List-post: <mailto:rfi@contesting.com>
The answer is no. The only loss you have is in the coax. The choke
itself doesn't cause any loss.

Bert VE3NR


On 2021-04-22 15:36, Tony wrote:
All:

Installed an RF choke at the feed point of my portable linked dipole and immediately noticed a significant drop in common mode noise while testing the setup at my QTH.

Isolating the coax from the antenna greatly improved the S/N ratio which I thought could help in the field when close to a noisy location.

This is probably a silly question, but I run QRP/CW when portable and was wondering if the choke can cause any appreciable insertion loss on the transmitted signal?

Tony

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