re-visit Subtle Change in CW monitor tone

[paulb]

Hi folks

This was a thread a week or two back.
Very slight kinda' pitch change when listening to
strong CW sigs.

I posted a while ago relating this to the hardware AGC action, seems to occur
when sigs over about 70 uV

Had another listen this evening; think it occurs when the CW siganls have
quite a bit of key click.

Not a big deal, my CW is pretty average anyway but interesting stuff.. :-)

cheers from downunder

Paul
zl1ajy