Tom,

Your speakers are probably picking up RF through the air, but I seriously 
doubt that they're contributing to your RF issues except that they annoy 
you.  Does the monitor have some sort of On-Off/Volume control?  If it does, 
it may also need to get power from somewhere to run an audio amplifier 
inside the monitor.  It's also possible that your sound card can only drive 
amplified speakers, and the speakers in your monitor may be nothing more 
than plain old speakers, which means that they're probably the wrong 
impedance for your sound card.  All of this is speculation, though, since I 
haven't seen your monitor or your speakers or your sound card.

Steve

----- Original Message ----- 
From: "tom behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, March 08, 2011 21:50
Subject: OffTopic: trying to get a PC to play audio through monitor speakers


> Hi, everyone.
>
> I am still trying various things to deal with my RFI problem on 20 meters
> when using the Alpha Delta DXCC antenna.
>
> I am finding that whenever I transmit on 20, a cheap set of computer
> speakers I have becomes extremely  susseptible to RFI, and I am wondering 
> if
> using those speakers is creating a ground loop that may be part of my
> overall RFI problem.
>
> As a way to find out if this is true, I would like to see what happens if 
> I
> play the audio on the PC through the speakers in a computer monitor that I
> have.  The monitor is on, but I can't seem to get the computer to play 
> audio
> through the monitor speakers.  I have gone to the control panel, and have
> selected the speaker option called "monitor speakers", but that doesn't
> appear to have done me any good.
>
> Is there something else I need to activate in the control panel to make 
> the
> monitor speakers work?
>
> There appears to be an extra plug on the monitor for a speaker connection,
> but when I plug it into the jack on the PC  where the speaker plug would
> normally go, again, nothing happens.
>
> This particular PC has Windows XP, and Jaws 10 on it.
>
> The monitor is a fairly new flat screen monitor, and it does have speakers
> on the front.  The speakers are small, and certainly won't deliver great
> sound, but this will be my ham radio computer, so the overall sound 
> quality
> will not be a big issue.
>
> Since this post is off topic, I encourage anyone to respond off list.  My
> private e-mail address is:
>
> [log in to unmask]
>
>
> 73 from Tom Behler:  KB8TYJ
>