Russ:

That's what I do all the time here, but I wonder if keeping it plugged in to 
AC power at least allows it to run in kind of a hybernation mode.

That's why I'm going to see if anything changes when I totally unplug it 
from AC power.

Tom Behler: KB8TYJ

----- Original Message ----- 
From: "Russ Kiehne" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, November 17, 2013 10:07 AM
Subject: Re: Annoying Interference Issue


> Why not just leave the monitor off?
> I never turn on my monitor unless I need sighted assistance with my
> computer.
>
> -----Original Message----- 
> From: Tom Behler
> Sent: Saturday, November 16, 2013 8:44 AM
> To: [log in to unmask]
> Subject: Re: Anoying Interference Issue
>
> Lloyd:
>
> What you are suggesting is in line with what Steve (KW3A) suggested 
> earlier
> in this thread.
>
> I will first systematically dis-connect peripherals while leaving the main
> desktop unit on, to see if any of them are the culprit.
>
> If the culprit happens to be the monitor, I have another one that I can 
> put
> in its place if needed.
>
> Will probably be a project for later today or tomorrow, although we are
> going to be hosting a dinner for a few work colleagues later tomorrow
> afternoon here at the house, which I will have to help prepare for.
>
> I appreciate your suggestions very much.
>
> Tom Behler: KB8TYJ
>
> ----- Original Message ----- 
> From: "Lloyd Rasmussen" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, November 15, 2013 7:30 PM
> Subject: Re: Anoying Interference Issue
>
>
>> Power cord placement will probably not make much difference on higher HF
>> frequencies.  Is your monitor on when this happens?  If this is a 
>> desktop,
>> what happens if you temporarily disconnect the keyboard, the mouse, the
>> ethernet cable, etc.?
>>
>>
>>
>> Lloyd Rasmussen, Kensington, MD
>> http://lras.home.sprynet.com
>> -----Original Message----- 
>> From: Tom Behler
>> Sent: Friday, November 15, 2013 8:30 AM
>> To: [log in to unmask]
>> Subject: Anoying Interference Issue
>>
>> 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
>>
>