[Elecraft] [K3] Phase Noise / CW Key Clicks

Nate Bargmann n0nb at n0nb.us
Thu Sep 13 15:46:07 EDT 2012


* On 2012 13 Sep 14:25 -0500, Rick Tavan wrote:
> Although the dominant competitive specs these days are receiver
> measurements, the cleanliness of the K3 should get more press. It is
> perhaps a tough moral sell but drop-dead easy in the multi-TX market.
> And Field Day is the most popular activity in US ham radio. In
> addition to enhancing K3 sales, more awareness should also stimulate
> Elecraft's competition, perhaps some day making a big improvement in
> inter-station interference everywhere.

And still, there are claims leveled at the K3 in other forums about
"poor transmit IMD".  I'm not sure what this means in the context of
transmitted broad band and phase noise.

> There may even be a viable argument that Elecraft has advanced the
> state of the art enough that eventual tightening of regulatory
> spectral purity standards for new rigs will be merited. Some may balk
> at that, but note that we are no longer allowed to operate spark, much
> to everyone's satisfaction.

There is much evidence given by operators that the K3 is a very clean
transmitter.  How can we argue against the claims of poor transmit IMD
and what does that actually mean to our spectrum neighbors on the air?

73, de Nate, N0NB >>

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

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