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 >>