I use an old windows utility named TUNEWIN. I run LINE OUT to my PC sound card and configure TUNEWIN so it is very small in physical size (so it doesn't interfere with my logging or contesting program monitor space) and you can customize it's audio Fc and audio BW to whatever sidetone frequency you desire. With this I can exactly zero beat a QSO and I have been using this utility for several years. I have found that CWT, when a signal is tuned correctly, will agree exactly with what is showing in TUNEWIN and (almost) exactly with what is being displayed on my P3 with the SPAN set to +/- 5kc.
Since the minimum CW bandwidth can be set only as narrow as 50 cycles, I think the CWT zero beat accuracy is certainly what is called 'good enough for government work'! Tom - W4BQF -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of W5UXH Sent: Friday, September 24, 2010 9:55 AM To: [email protected] Subject: Re: [Elecraft] K3: Duration of button press 'beep' varies I suspect I have. Several times I was caught off guard by what I was hearing and I believe it was a longer tone from the confirmation beep. I think it was when toggling back and forth between CW-nor and CW-rev for zero beating (SPOT doesn't get close enough for me most of the time) so I was confused between the toggling tones of the incoming signal and the unexpected behavior of the confirmation beep. Since then I have turned off the beep. Chuck, W5UXH Andrew Moore-3 wrote: > > On my K3/100, firmware 4.05, I've noticed some odd behavior with the audio > confirmation beeps depending on how long I hold or tap a button. > .......... > Has anyone else noticed it? > > --Andrew, NV1B > > > -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Duration-of-button-press-beep-varies -tp5565457p5566918.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ 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
