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
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