[Elecraft] Bad report on SSB-modulation

[Karsten Eppert(DK4AS)]

Hi,

I am getting reports from stations, who live in the neighbourhood that 
my SSB sounds like my PA is operating as Class C-Amplifier. I have 
checked the bias - that is ok as described in the manual.

What can I do to check my modulation other than listening to other 
peoples reports? What else can let the modulation sound like from a 
Class C-PA?

73
Karsten
DK4AS