Tom,
I would probably try unplugging everything possible from the pc and see
if the noise goes away. If you find the culprit, put ferrites on it.
I had a keyboard that was causing problems and while ferrites killed 90
percent of it, I went to a $20 wireless keyboard and never looked back.
BTW, I saw your log was received at the PAQSO site. I'll give you a
head's up when the preliminary scores are posted.
73, Steve KW3A
On 11/15/2013 8:30 AM, Tom Behler wrote:
> Hi, all.
>
> As I think many of you know, I am currently in the process of switching to a
> Windows 7 PC as my main home computer. I will be using the PC for both
> professional and personal purposes here in my home office.
>
> My home office is also where I have my ham station set up, which does have
> its advantages if I need to take a little break and check out the bands
> every once in a while. (grin)
>
> Anyway, I have just noticed that when this new computer is running, it
> places all sorts of little birdies across the HF bands, particularly the
> higher HF bands like 10 and 15 meters.
>
> To me, this obviously means that the computer has a very poorly-designed
> switching power supply.
>
> My question is what might I be able to do to minimize this interference?
>
> I have thought of switching the computer to another circuit in the house,
> but that would involve running an extension cord into another room, which
> could be a bit of a pain.
>
> If there is a fortunate side to this dilemma, it is that I am not going to
> be using the PC for ham radio applications such as logging, rig control, and
> the like. Those functions are done via a separate Windows XP laptop that I
> have on my ham radio operating desk.
>
> Of course, the obvious low tech solution to this issue would simply be to
> turn off the main PC whenever I am operating on the HF bands, and I may have
> to resort to that for now.
>
> If, though, there is something else I might want to try, please let me know.
>
> Tom Behler: KB8TYJ
>
>
>
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