[Elecraft] K3 Transmit IMD

[Wes Stewart]

--- "Eric Swartz - WA6HHQ, Elecraft"
<eric at elecraft.com> wrote:

> The K3 firmware used for the original QST review did
> not turn off the 
> K3's RF speech compressor clipper even when the
> compressor was set to 
> zero for their TX IMD two tone test. This resulted
> in a significant 
> increase in measured TX IMD when using an external 2
> tone source. We 
> corrected this in a firmware update last month.  All
> new K3's and anyone 
> who has updated to the latest firmware have this
> fix.
> 
> 73,  Eric  WA6HHQ

[snip]

Well, that sort of explains it, but raises another
question: Does the firmware change actually correct
the IMD issue or does it simply return when the
operator turns the processor on?

Regards,

Wes  N7WS


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