[Amps] RFI Question

[m.ford]

Hello Mike,

    How close is your neighbor? What model radio are you using
and is the output resonably clean?

    If the output is ok and the neighbor is close enough, I would
invest in decent amplifier. Actually, at that low a power level
you may have an antenna issue, grounding issue etc.
I had a heathkit IR motion detector light in the yard that would
come on everytime I keyed. I did'nt know about it until the neighbor
mentioned it years later.

    Buy the amp.

Mike k1ern

> 
> 
> ----- Original Message -----
> From: "K6QD" <K6QD at cox.net>
> To: <amps at contesting.com>
> Sent: Friday, February 03, 2006 4:22 PM
> Subject: [Amps] RFI Question
> 
> 
>> I don't know if this is the correct forum for my question, so if not, I
> apologize.
>> I have a friendly neighbor who has recently installed new light dimmer
> controls on three lamps.  I am causing his lamps to go on & off when running
> any power over 100W on all HF bands.  I had not seen this type of dimmer
> before, but it is a small (2" x 2" x 3/4") plastic box with 4 leads exiting.
> The 4 leads go to 1) 115 hot, 2) 115 neutral, 3) 115 to the lamp and 4)
> control lead to the metallic base of the lamp.  By momentarily touching the
> lamp base one can set the brightness to 3 levels as well as off.  Opening
> the box, I find one IC (8-pin mini-dip), one TO-220 (appears to be a pass
> transistor - nomenclature: "BT136", "600D") and multiple R, C & diodes on a
> single-sided PCB.  There is no reference to the manufacturer other than
> "China".  I can generally understand how the device works even though I
> cannot reference what the IC is.  The IC nomenclature is "DI-2417" &
> "C4841917-6A".  Has anyone had any experience correcting an interference
> problem with one of these type de
>>  vices?  Thanks!   Mike K6QD
>> _______________________________________________