Hi Don The "whine" is a steady continuous tone (perhaps at 800 or 900 cycles), not popping, nor a low pitched oscillation and in fact I wondered if the sidetone spot was on or if the key was down. It does vary in level with the AF gain control but doesn't change in pitch. It is present whether there is a signal being received or not. It is still present if I do a tune.
73 Ray G3XLG -----Original Message----- From: Don Wilhelm [mailto:[email protected]] Sent: 10 January 2012 20:35 To: Ray Spreadbury Cc: [email protected] Subject: Re: [Elecraft] K1 Audio Problem after fitting KNB1 Noise Blanker Ray, Please describe the "whine" in more detail. Is it more of a "popping" noise, or is it a low ptched oscillation, or is it a high pitched squeal, or something else. Does it vary with the AF gain control or is it more constant - if it varies, does it change in level, or pitch or both? Does it vary when tuning through a strong signal - how about a weak one, or is it present whether there is a signal being received or not. If you do a TUNE (connect a dummy load first), is it silenced or is it still present. 73, Don W3FPR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
