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Re: [Amps] RF ?

To: amps@contesting.com
Subject: Re: [Amps] RF ?
From: gdaught6@stanford.edu
Date: Wed, 04 Feb 2009 09:14:11 -0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
> I have a question I would like to put out for discussion.
> 
> After using my SB 200 I notice that my Genie garage door opener will  
> not work. The opener has a control board that searches for new  
> frequency codes as a security feature. The control board apparently  
> shuts down and I must unplug the opener and re plug to reset it.
> 
> I have not eliminated this issue to any particular band and no other  
> equipment in my shack affects the garage door opener ( not even my  
> 30L-1). The door issue does not occur when the amp is not used and can  
> run smoothly until the amp is put into use again so I feel the amp is  
> the cause.
> 
> Before I start tearing things apart - has anyone experienced similar  
> issues or have suggestions as to how to proceed.

My neighbor's garage door would be triggered to open or close when I was 
sending 
CW.  After a bit of fiddling, we found that a 0.01uF disc capacitor across the 
connection to the remote (manual) switch fixed the problem.  No tearing apart, 
no big 
hassle.  Apparently the longish wire run to the switch from the control box was 
a fine 
antenna.

YMMV, of course.

73,

George T Daughters, K6GT
CU in the California QSO Party (CQP)
October 3-4, 2009


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