They probably aren't really off. You might wanr to take this to RFI list (contesting.com), but some report particular brands of Lutron dimmers are quiet(er). You might be able to justify (to a landlord or other financial approver) replacing them on an energy basis.
73,
Leigh/WA5ZNU
On Fri, 7 Sep 2007 11:33 am, Zac Brown wrote:
After looking into this further - the noise is still there even with the dimmer switches turned off (circuit is on). Is this normal?

Thanks,

Zac
KD5IEF
K2 4907

On Friday, September 07, 2007, at 09:50AM, "Dave Van Wallaghen" <[EMAIL PROTECTED]> wrote:
Hey Zac,

That sounds very similar to what my plasma TV emits. I have my window line running along the outside wall where the TV is mounted and when it is on, I can hear it very plainly. The tone fluctuates with changes with the picture.
I've also noticed that it peaks at certain frequencies as well.

I was able to detect it as well when operating portable in my yard 100 ft away with a separate antenna in a tree. So I know it's not just in the power line. It is considerably attenuated out there - but there none the less.

BTW - I have a 50" Panasonic Plasma - beautiful picture and a great RF
generator.

73,
Dave W8FGU

 -----Original Message-----
 From: [EMAIL PROTECTED] [mailto:elecraft-
 [EMAIL PROTECTED] On Behalf Of Zac Brown
 Sent: Thursday, September 06, 2007 11:48 PM
 To: Elecraft reflector
 Subject: [Elecraft] Help with noise on 40m

 I made a few recordings of some noise that I hear on 40m tonight. The
.wav files can be downloaded at the address below. I have no idea what's
 causing this noise, or how to filter it out. Is this the type of noise
 that the KDSP2 or KNB2 could remove?

 Thanks,

 Zac
 KD5IEF

 http://homepage.mac.com/zac_brown/FileSharing44.html
 _______________________________________________
 Elecraft mailing list
 Post to: Elecraft@mailman.qth.net
 You must be a subscriber to post to the list.
 Subscriber Info (Addr. Change, sub, unsub etc.):
  http://mailman.qth.net/mailman/listinfo/elecraft

 Help: http://mailman.qth.net/subscribers.htm
 Elecraft web page: http://www.elecraft.com



_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply via email to