[Elecraft] How to outfit a K3 for JT65HF or JT9

[Larry Lopez]

But what about EME.

You want a narrow filter and you want constant group delay.
I'll research that as a separate topic.

Let's close this out.

In a pinch the 5 pole filter which comes with the rig is ok.

6K AM, 12K FM are recommended making up selectivity
in the DSP.

Narrow filters recommended when in filter band signals
are producing overload.

Narrow filters may degrade digital signals.

Signals near the skirts of filters may be degrade digital signals.

constant group delay filters are recommended.
I haven't found any.

Larry



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