Robert, Like you, most of my interference comes from a LINKSYS WRT54G.I have tried unsuccessfully to use ferrite cores on both ends of the power cord. The birdie that hurts me the most is at 14.333 MHz. I have been thinking about switching to a D-LINK router because I have heard that it is much quieter.
John [K7SVV] On 8/10/05, ROBERT CARROLL <[EMAIL PROTECTED]> wrote: > I have recently moved to a new QTH and am slowly getting things in shape to > get back on the air. I ran into a lot of nasty RFI problems. The previous > owner had installed "smart house" wall switches throughout the house. They > were supposed to control incandescent lamps only, but in fact they > controlled fans, wall outlets, etc. Besides sending a few entertainment > radios to the dump before I figured out what was going on, the RFI was > horrendous. Gradually I removed them only to find I still had problems. > While doing some electrical work an electrician found the signal injector > for the system behind the main breaker panel, and that eliminated nearly all > the noise. > > I should say nearly all the broadband noise, as I was left with birdies > about every 30 kHz or so. Eventually I tracked those down to a Linksys > Wireless G router, model wrt54gs. My previous Linksys bit the dust just > before I moved, so I can't say if I would have heard the birdies from this > one had I installed it in the old QTH. I have wireless and wired > connections running off this router, and have helped the problem by > installing ferrite on the power wart lead and all the data leads. But I > have not been able to eliminate the rather broad birdies that seem to fall > at nice dx frequencies. > > Has anyone on the reflector had such a problem and found a way to cure it? > Searching on the internet I find that RFI from routers is a well known > phenomenon, but I have seen no suggestions for curing the problem. > > > Bob W2WG > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Bob - W5BIG > Sent: Wednesday, August 10, 2005 9:32 AM > To: tom.w3qs; 'Elecraft Reflector' > Subject: Re: [Elecraft] Interference from Computers > > Hi Tom, > > One major source of noise is the CRT monitor. It helps to make the screen > display as uniform as possible, like a blank window or a plain background > without texture. > > 73/ Bob - W5BIG > > > ----- Original Message ----- > From: "tom.w3qs" <[EMAIL PROTECTED]> > To: "'Elecraft Reflector'" <elecraft@mailman.qth.net> > Sent: Wednesday, August 10, 2005 7:03 AM > Subject: [Elecraft] Interference from Computers > > > > Good Morning Group, > > > > I am back on the air (4991) after nearly 20 years. The first thing I > > noticed was all the interference on 20 meters. Hetrodynes everywhere! > > What's going on? > > > > Took me a while to figure out that it was the computer - not there 20 > years > > ago! > > > > So, other than removing it from the shack (ghastly thought) is there any > > font of wisdom on this subject or general guidance? > > > > Thanks and 73, > > > > Tom, W3QS > > > > > > _______________________________________________ > > Elecraft mailing list > > Post to: Elecraft@mailman.qth.net > > You must be a subscriber to post to the list. > > Subscriber Info (Addr. Change, sub, unsub etc.): > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > -- John [K7SVV] _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com