[Elecraft] Understanding the KX3 Block Diagram

[Wayne Burdick]

Alan Bloom wrote:

> Of course it would also draw as much power as a whole K3 - don't even
> talk about a KX3.  But that wouldn't be a problem as long as you  
> plan to
> always use it with a line-operated power supply.

Except that some of us prefer to minimize energy use at all times, not  
just when operating portable. When I solar-power my house, some day,  
I'll be even more interested in efficient solutions, not shack  
warmers....

This concern for saving energy is why the K3 draws about one third the  
current of a conventional mega-rig, why the KX3 draws half as much  
current as an FT-817--why our entire product lineup is power-efficient.

The trick is to also keep performance high. (A famous radio engineer  
once commented that the K2's measured and verified level of receiver  
performance was "not possible" given its low current drain :)

It's double-bottom-line engineering. Fortunately we're not the only  
ones doing it. I recently bought a new "green" charge adapter for my  
iPhone that draws essentially zero power when not in use, even if you  
keep it plugged in. Past chargers were of the "vampire" class that  
sucks power continuously.

Don't get me started on LED lighting.

Back to my firmware cave,

Wayne
N6KR