[Elecraft] K2 #2411 on 160 - no sidetone

[Tree N6TR]

Got the new radio on 160 and the noise blanker installed.  I 
had an interesting problem with the sidetone going away after
the installation of the 160 module.  I had to reset the radio 
to get it to come back.

Then, I noticed some other strange behavior when running full 
power (15 watts) on 160.  If I cranked it down to 10 W, everything
seems fine.

I suspect that either the supply voltage to the processor is going
too low, or maybe some kind of weird RF problem.

Anyone else see this?  

I am running an Astron 35 amp supply.  I suspect that most of
the voltage sag is due to the current sensing resistor in the
radio.

Before going to bed, heard R1ANM on 20 meters really loud.  He
had lots of guys calling, but I was able to get his attention.
I suspect I will appreciate my monobanders more when running 
10W than 1500.

73 Tree N6TR