Sidetone questions -- copy speed vs sidetone pitch

Posted by on Jan 15, 2006; 11:31pm
URL: http://elecraft.85.s1.nabble.com/Sidetone-questions-copy-speed-vs-sidetone-pitch-tp385721.html

I understand the reason a lower pitch ST would be easier to copy when qrm is present, due to the percentage difference matter.  My question concerns what pitch is easier to copy when receiving fast cw when no qrm is present.    I seem to remember seeing a post on this matter some time in the past, in which it was stated that pitch makes a difference, but have been unable to find in the archives.  Anyone remember it?
Also, it seems my K2 pitch volumn has a "hole" around 550 to 625, in that the level is not as loud in this range, when using the K2 internal spkr.  I do not notice this "hole" nearly as much when using my Kenwood spkr.  I do not mean to knock my fine lil k2.  My Kenwood internal speaker is no better, only the external speaker is better.  Anyone else experience the "hole"?
 
Seems like it would be nice if Elecraft came out with a neat seperate speaker.  
 
Any one care to comment??
 
George, n4ym
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