On 2/15/2012 8:24 AM, briana wrote: > The fix has to be within the K3. It all depends on exactly what problem you're trying to fix, and how bad the problem is. Think about it -- a T/R relay has delays associated both with pulling in AND dropping out. Granted they may be different delays. These delays set a practical limit on how fast the amp is able to work on CW, no matter what is done in the exciter to delay keying.
BUT -- there is an important difference between delaying the ONSET of CW after PTT is asserted, which seems to be what the K3 is doing, and delaying the entire CW signal, which is what is needed to avoid shortening the keying elements at higher speeds. There would still be a limit on keying speed corresponding to how fast the T/R relay can switch, but that limit could be raised to a higher speed. Put me on the list of those who urge Elecraft to attempt the latter, with the requirement that the delay be applied both to the internal keyer and to keying via the straight key input (where computer-generated keying is applied). I suspect that the limitation is either DSP cycles or RAM, or both, and these limitations were set at the original design.stage. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
