Randy, Well, it would seem the stiffener is not your problem, but I would "pop the top" and heck the synthesizer mounting screws for tightness anyway.
Perhaps if you can better describe "roughness" for us, it may help. 73, Don W3FPR On 12/27/2010 5:27 PM, Randy Moore wrote: > Don, > > Thanks. But my K3 came with the synthesizer stiffener. If this were > the problem, wouldn't the roughness be worse at higher audio gain > settings? It's not, and appears at the lowest gain that I can copy the > signal. > > 73, > Randy, KS4L > > On 12/27/2010 4:14 PM, Don Wilhelm wrote: >> Randy, >> >> Since the problem seems to be confined to times that the internal >> speaker is being used, I must ask if you have the synthesizer >> stiffener added to your K3. >> >> Why it would suddenly become a problem when it was not before is >> anyone's guess, maybe the screws mounting the synthesizer board work a >> bit loose. >> >> If you do not have the synthesizer stiffener and you use the internal >> speaker, you should add it promptly. >> >> 73, >> Don W3FPR >> >> On 12/27/2010 4:59 PM, Randy Moore wrote: >>> What's happened to my K3? I've been noticing today that on rx, the CW >>> note of signals is slightly rough. It sounds just a little "fuzzy." If >>> I change modes to USB (no other changes), that roughness goes away >>> entirely. This is not the mechanical "fuzziness" that I've heard before >>> that's audio frequency dependent. It happens independent of the tone >>> frequency of the signal, though it seems more apparent at the lower >>> audio frequencies (I have my sidetone pitch set to 450). >>> >>> I have SPKR+PH setup on PF2, so I can turn it on and off quickly. >>> Listening just to the K3 internal speaker, this roughness is always >>> present. If I listen through my CM-500 headset, and toggle SPKR+PH from >>> YES to NO, the roughness remains on the signal for maybe a second, then >>> goes away. This must be a clue! >>> >>> This is K3 # 4564 (MCU 4.22, DSP 2.70) and I've been very happy with the >>> CW tone until today. I'm not aware that I've changed any settings >>> lately. I don't have NB or NR on. Just AGC-F (though it is independent >>> of AGC setting). It is independent of bandwidth. I have the 2.7kHz and >>> 400Hz filters, and it happens with either and any setting of the DSB >>> bandwidth. >>> >>> 73, >>> Randy, KS4L >>> ______________________________________________________________ >>> 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 >>> > ______________________________________________________________ > 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 > ______________________________________________________________ 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
