Full Duplex

So I was fooling around in the CQ-WPX contest trying to figure out how to best deploy the 6300.  While noodling I came across this really cool aspect of the radio

 

If I transmit on a fundamental of let's say 3.5 mhz (and change to be legal), I can see my harmonic on 7 mhz, 14 mhz, 21 mhz, etc.  I also noticed the harmonic strength varied with transmitted power as one would expect.

Can you say full duplex?   More on my contest experience in a subsequent post.

73  W9OY