[Elecraft] [K3] K3 Rev C DSP with Low Freq Enhancement

[Mike Scott]

>Wished I had a set of ears like yours.
12 KHz alias signals measure 65 dB down from CW beat note in my K3
while 3rd harmonic is 55 dB down.

Juan, I think your 3rd harmonic measurement is the key. If you research
audio fatigue you may find that odd harmonics are particularly troublesome
and that they can cause audio fatigue even when the level is below what you
might consider audible. My ears are not that good, ask my wife... I wear a
hearing aid in my left ear. I just may more susceptible to audio fatigue
than the next guy.

Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
NAQCC 3535
K3-100 #508 / KX1  #1311