[Kenwood] TS940S CW heterodyne tone

[Vaso Nastasic]

Hello from this part of world and HNY 2007!

I have problem with heterodyne tone while radio is in CW mode.

The tone is more noticeable if radio is not connected to antenna.

I found a lot about this topic on the net but no modification for TS940S.

Modification for TS930S is presented on several web pages but

constructions of those two radios are different.

Anyone can help? The radio S/N is over 8mil.

73s de Vaso YT1XX / YT6XX.