[Elecraft] Field Day

[Jim Brown]

On Sun,6/5/2016 7:50 PM, Howard Hoyt wrote:
> Has anyone on this list used one of the Bioenno MPPT chargers, and are 
> they RF quiet?

Pretty quiet, but not totally so. The answer depends on proximity of 
antennas and operating frequency. I just tested the 4A charger they 
supplied for my 20Ah battery and heard a very low level buzz on the 160M 
antenna 25 ft from my shack. A choke with 18 turns on a single #31 
2.4-in diameter toroid killed it.

> I appreciate any shared experience, 

Me too -- the state of the art is advanced when we do that in a 
thoughtful way. Thanks for the good question, Howie. I had asked it 
myself a few weeks ago, which is why I checked mine.

73, Jim K9YC