>
> Apparently there is a rule of thumb that says the third order
> intercept is 10 to 12 dB above the 1dB compression point:
>
>
http://www.rfcafe.com/references/electrical/p1db.htm
>
http://www.arrl.org/qex/2006/09/qx9letters.pdf
>
>
> Mike
> KL7R
looking at the philips data sheet for the sa602, this difference is
almost exactly 12dB
Andy