Tom,
If you decide to replace the power supply, I will help you get one and talk
you through swapping it out.
Howard #3
----- Original Message -----
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, November 16, 2013 10:21 AM
Subject: Re: Anoying Interference Issue
> Howard:
>
> This is a great suggestion, and I'm going to keep it for future reference.
>
> Personally, I am almost somewhat embarrassed to admit that I have never
> swapped out a computer power supply, but I guess I never saw the need to
> do
> so. The computer in question is a standard HP mini-tower computer, and
> you
> make it sound so easy that I'm sure I can pull it off. I have done much
> more complicated stuff than that with my ham gear over the years. (smile)
>
> Thanks again, and I'll keep you and everyone posted.
>
> Tom Behler: KB8TYJ
>
> ----- Original Message -----
> From: "Howard, W A 9 Y B W" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, November 15, 2013 5:34 PM
> Subject: Re: Anoying Interference Issue
>
>
>> Tom,
>>
>> If all the other suggestions mentioned do not solve your problem,
>> consider
>> this.
>>
>> I had some noise show up here at home that I first noticed on the A M
>> broadcast band. After some investigation I tracked it down to a P C's
>> power
>> supply. That computer had been here for years and suddenly started this
>> problem. A trip to the computer parts store netted me a new power
>> supply.
>> Less then 10 minutes later and $40 poorer, the problem was solved. Power
>> supplies are mounted with 4 screws and all the cabling are plug-in type
>> connections so the swap-out is a piece of cake. Unless you have some
>> super
>> compact unusual computer, most power supplies are fairly standard.
>>
>> Is this a mini tower type computer? If so, it should be a standard type
>> ATX
>> style power supply.
>>
>> There will be a power connection to your hard drive,
>> CD/DVD drive, and possibly 1 or 2 to the motherboard, that's all there is
>> to it.
>>
>> I have built about 6 computers over the last 10 or so years.
>>
>> You can do it.
>>
>> Howard #3
>>
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Friday, November 15, 2013 7:30 AM
>> 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
>>
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