[Elecraft] K3 for CW

[Thomas Horsten]

Vic,

You may say this and it may be true in theory, but if you have a 400Hz
filter and are listening on an otherwise clear segment of the band with a
single relatively weak signal in the centre of the passband, try widening
from 400Hz to 450Hz, in my case switching to the 2.1kHz filter. If you
still believe there is no reason for the narrower filter, IMHO you need
your hearing checked [no offense intended]. Or try telling the K3 that it's
really a 500Hz filter and do the same from 500 to 550Hz, same effect.

Personally I have not had any need for anything narrower than 400Hz,
although I would love a 200Hz filter if there was room for 6, but my lineup
is FM, AM 6kHz, 2.7, 2.1, 400, so I don't have room for any more.

73, Thomas M0TRN

On 5 July 2012 16:51, Vic K2VCO <k2vco.vic at gmail.com> wrote:

> The ONLY time you need a narrower filter is when there is a signal that is
> about S9+20 or
> greater that is outside the DSP bandwidth that you have selected but still
> within the
> bandwidth of the selected filter.
>