[Elecraft] K2 Recommended Side Tone Freq

[Nigel Hayton]

Greetings

I will soon be building #3029 and as one getting back to "hands on"
construction after a long break - the last one was 45 years ago and had
two 6L6s in the final - I have found the wealth of information on the
list very helpful   -   Thank you.

An aspect I would like to understand better.

On page 71 Owners Manual Rev D Oct 22 2002  

"pitch can be set from 400 to 800 Hz, although 500-600 Hz is
recommended."

What is the reason for this recommendation?   Is because of a technical
reason related to the K2 or is it based on CW operators experience in
actual band conditions.   The Code teaching program I am using to
refresh my CW skills suggests to use 750 to 800Hz.

Any advice and suggestions would be appreciated,

73

Nigel