[Elecraft] annoying problem

[Jim Wiley]

If it is a wired-in smoke detector, try putting a .01 uFd 1400-volt "AC 
rated" cap directly across 120-volt AC power leads.  If that isn't 
enough, then try a capacitor the between (across) the wire, if there is 
one,  that connects it to the other detectors and the AC neutral lead.  
If the unit is battery powered, try a .01 uFd 600 V cap across the 
detection chamber.  That may work, but if not, get used to the idea of 
having to move it.  Always test and verify proper operation of  the unit 
by blowing actual smoke from burning wood matches into the unit after 
making any modifications of this nature.  Pressing the "test" button is 
not enough - use actual smoke.


- Jim, KL7CC


On 2/1/2013 7:48 AM, haircutter at verizon.net wrote:
> I was wondering if i can cure an annoying problem when I am sending  cw on
> the hf bands above 15 meters.
>   I have a small mini beam on the roof and my shack is directly under it.
> When I work the bands above 15 meters my smoke alarm beeps. Its in the hall
> between the bedrooms, so don't want to move it.
>    Is there a way I can filter this problem without moving the smoke
> detector?
>   Dumb question, but hate to move the detector.. but will , if I have to....
>
> Don...w2xb
>
>
>
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