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Re: [RFI] Maintaining 50 Ohms...

To: rfi@contesting.com
Subject: Re: [RFI] Maintaining 50 Ohms...
From: Dave <dave@nk7z.net>
Date: Sat, 18 Sep 2021 04:35:08 -0700
List-post: <mailto:rfi@contesting.com>
Thanks gents... The resistors I am using are 10 M, 20KVs. I will build a small chassis and put them on inside, with a pair of SO-239s.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 9/17/21 6:25 PM, Jim Brown wrote:
On 9/17/2021 5:54 PM, David Eckhardt wrote:
The value is anything over 10 kohms.  The disturbance
to the 50-ohm impedance is completely negligible.  The rule-of-thumb on the resistor value is something over 10X the system impedance.  I've even used
1k successfully.

A limiting factor for low values is dissipation in the bleed resistor.

73, Jim K9YC
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