Toby,
The notch is outside de AGC loop. Reason: there's a long story about IMD
and hardware AGC, which I won't quote here. Elecraft never came up with
a programmed DSP/hardware AGC solution that would dampen this effect a bit.
A pumping AGC is probably not considered an issue. To which I disagree.
I would think that there would be enough IMD headroom in the K3 to
improve the reception a bit in this case.
But if it isn't there, it's not there. No receiver is perfect. Not even
the K3.
Luckily there are a lot of good features in the K3 to compensate my sad
feelings about this item.
73 to all,
Arie PA3A
Op 12-3-2013 15:38, Toby Pennington schreef:
This has a lot to do with whether the notch is inside or outside the
AGC circuit. I THINK on the K3 the auto notch is outside the AGC, and on the
upconversion rigs like a 7800 Icom, it is on the inside of the AGC circuit.
This makes for the best quality sounding auto notch.
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