[Elecraft] WHY NOT 700HZ FILTER FOR K3/K3S?

[Roger D Johnson]

I can vary the selectivity from 2800 to 50 Hz with the width knob.

73, Roger


On 12/23/2018 10:08 AM, Bob McGraw K4TAX wrote:
> I find the 500 Hz 5 pole filter  works very satisfactory for this purpose.
>
> 73
>
> Bob, K4TAX
>
> On 12/23/2018 6:54 AM, Victor Rosenthal 4X6GP wrote:
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