[hpsdr] Level calculation error in Two Tone Test generation routine

[John Marvin]

Perhaps this is a bit pedantic, but the "PA Gain" tab under "PA 
Settings" provides a drive level correction factor on a per band basis 
(at least that is my understanding). This is to help compensate for #3 
below, i.e. the varying frequency dependent gain characteristics of the 
various analog amplifier stages.

This is probably not a significant factor in the discussion, but it 
might help explain any variances seen if someone was actually looking at 
the digital I/Q levels at the protocol level.

73,

John
AC0ZG

On 11/23/2016 7:47 PM, Warren C. Pratt wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
>
> How much the final amplifier is or is not driven into 
> compression/saturation depends upon several things:  (1) the I-Q 
> levels which vary with modulation and are also controlled by the 
> settings of the two-tone generator, (2) the Drive control which 
> controls the DAC bias current, and (3) the gain characteristics of the 
> various analog amplifier stages.
>