[Elecraft] Data mode and filters

Jim Brown jim at audiosystemsgroup.com
Mon May 18 12:36:08 EDT 2015


On Mon,5/18/2015 5:40 AM, Joe Subich, W4TV wrote:
> You are extrapolating the behavior of the K3 with its open loop ALC
> and reasonably behaved KPA3 to other rigs.  The results would be
> very different if you were pushing a "12V" Icom, Kenwood, or Yaesu
> rig.

No, I'm talking about a K3, which is what I measured. The two Yaesu rigs 
I've measured, both run only on 120/240VAC, and their IMD and occupied 
spectrum do NOT decrease with power level.

You are clearly on a mission to shift the ham world to high voltage PAs. 
But a significant part of the ham world wants a radio that runs on 
11-14VDC, making it much more versatile for portable and mobile 
operation, carry-on in luggage for a DX trip, and easy to run from a 
simple solar power system.

73, Jim K9YC


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