[TenTec] Further Orion Sub Receiver -- Some results

[Sinisa Hristov]

Grant Youngman wrote:

> Following are the 2nd order products relative to the fundamental for various
> settings of PBT.  Total AUDIO bandwidth is 5000 Hz at 2K shift and 5500 Hz
> at 2500 shift.
 
>     PBT
> - 2000 Hz:  -45dB
> - 2500 Hz:  -33dB
> + 2000 Hz:  -33dB
> + 2500 Hz:  -34dB
 
> The largest of these (-33dB) represents 0.05% harmonic distortion.


That's incorrect. -33 dB is 2.4 % THD.

0.05 % THD would be -66 dB.


73,

Sinisa  YT1NT, VE3EA