On Tuesday 12 February 2008 15:09, Barry Samuels wrote:
On Sun, 2008-02-10 at 21:01 +0000, Barry Samuels wrote: My dedicated MythTV computer has now been removed from its cardboard box and has been put into a proper case.
However when it's running it causes interference on medium wave on my wife's radio.
It turned out to be, mostly, the TV adapter. Removing that removed 80% of the interference leaving a little which must be one of the other components.
That really doesn't help of course as the whole idea is to have a TV adapter. I'm surprised manufacturers can get away with that these days.
Hi Barry Glad you found the source, the Radio Society of Great Britain advises you contact the manufacturer, although it quotes Ham radio it is I believe even more applicable to domestic services
6.1 Contacting manufacturers If you prove conclusively that a certain piece of equipment is producing RFI, it is worth trying to find out full details of the make, model number and date of purchase so that a complaint can be made directly to the manufacturer or importer. A polite and technically well-informed approach is recommended when dealing with manufacturers. The equipment probably met a necessary standards at the date of manufacture so the only way forward is on a good will basis. The best approach when dealing with manufacturers is usually to phone first and find out the name of the person responsible for EMC then follow up the phone call with a letter, fax or e-mail. It is also worth finding out whether a newer model is available with reduce RFI. In some cases, the manufacturer may be prepare to provide a filter or exchange the equipment in question for a newer model at a reduced price.
http://www.rsgb.org/emc/pdfs/leaflets/emc4interferencetoamateurreceptionmemb...
Kind Regards - Nick Daniels