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

[Scott Traurig]

Hi Helmut,

Actually, that helped. And I just found the following citation, which
helped clear things up for me as well:

"The display represents the rate at which peak power occurs when the two
frequencies are in phase and the voltages add. Thus, one peak contains
one-fourth (-- 6 dB) of the peak envelope power (PEP). An average reading
power meter would read the combined power of the tones, or half the PEP,
assuming the envelope distortion is negligible."

So since we have a true peak reading FFT based display, we are seeing the
PEP spectra.

Thanks,

Scott/w-u-2-o

P.S. I hate the 12KB message limit on this list...

On Thu, Nov 24, 2016 at 10:28 AM, Helmut <dc6ny at gmx.de> wrote:

>
>
> Scott,
>
>
>
> Maybe I should have used the symbol ‘ ^’ instead of ‘*’ in the formula I
> posted yesterday, to make it understandable for you. This equation needs no
> logarithmic dimension. I would recommend the usage of this equation and all
> further discussion is superfluously.
>
>
>
> 73, Helmut, DC6NY
>
>
>
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