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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I am having some problems with RF getting into my PC and upsetting the WIntest keying. I can do what I like with the paddles when I run power, but as soon as I touch a WIntest function key to send CW it just locks everything up with a solid transmitted carrier. I was able to eliminate this on my last PC by grounding the case and using WiFi, but not on this PC. It’s only bad on 15 and 40m. The 15m antenna is quite near the shack and the 40m antenna has a bad SWR at the moment - so I know the cause.<o:p></o:p></p><p class=MsoNormal>Does anyone have advice on what can be done to prevent this – practical down-to-earth solutions (excuse the pun).<o:p></o:p></p><p class=MsoNormal>Thanks!<o:p></o:p></p><p class=MsoNormal>Stewart<o:p></o:p></p><p class=MsoNormal>GM4AFF<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>