[Elecraft] Amp power per $$ spreadsheet download

[Vic Rosenthal]

Sharpening the envelope is harmonic distortion, not IMD. I think.

Vic

> On Apr 27, 2015, at 8:18 AM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
>> On Sun,4/26/2015 10:05 PM, Vic Rosenthal wrote:
>> A CW operator doesn't care about IMD,
> 
> WRONG!  CW is a carrier amplitude-modulated by a series of square waves, and the harmonics of which that square wave consists excite IMD in the gain stages! The IMD from those harmonics is what we hear as clicks. The faster the rise time, the greater the order and magnitude of the harmonics produced, so the louder and wider are the clicks. An important reason the K3 is MUCH cleaner than nearly all other rigs is that they have carefully shaped the keying waveform to minimize the amplitude and order of those harmonics. AND - they refuse to give us menu settings to screw it up, a mistake that virtually every other manufacturer makes.
> 
> 73, Jim K9YC
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to k2vco.vic at gmail.com