[Elecraft] IMD and supply voltage

[Joe Subich, W4TV]

On 10/29/2015 5:53 PM, Luis V. Romero wrote:
>
> Processing issues heard on the air today simply make the discussion of final
> amplifier spectral purity moot.
>
>

Comparing processing issues and transmitter IMD are mixing apple and
oranges.  Processing issues generally affect the quality of signal
*on channel* - the ability to understand the audio - whilst IMD is the
"off frequency" splatter up/down the band that interferes with everyone
*except* your own QSO.

While both are important it is the IMD that represents a "spurious"
signal outside the bandwidth required for communication - typically fie 
to ten KHz above and below the desired RF.

73,

    ... Joe, W4TV