>It is probably due to filters in the transceiver. Not all the third order
>distortion is after the IF filter.
>Now show me the math that backs up your claim.
What claim? I was looking at the IMD graphs that the ARRL publishes
whenever it tests a transmitter, and noticed that the IMD products, shown
on those graphs, were not symmetrically a mirror image around the center
frequency. It was an observation not a claim.
I don't know what is causing this asymmetrical behavior, and it's
impossible for me to do the math on something I don't understand.;)
--
Zyg AF4MP
Roswell GA USA
|