New DSP-settings for 100 and 50Hz filters

[Dave, G4AON]

Benny

If you switch the DSP by tapping "7" while in the filter menu and have
50 or 100 Hz bandwidth there is quite a change in volume, however if you
select the new default setting and rotate the width control all the
settings are the same volume. What seems to happen is that now the
50/100 Hz bandwidths jump in volume with the original "IIR on" setting,
this didn't happen on the earlier software. Any thoughts Lyle?

73 Dave, G4AON
K3/100 #80
============

I loaded new wares 1.58 and 1.48.
 From Elecraft page this change was e.g. for 100 and 50Hz
DSP-filters.
My experience is, that both filter outputs were now
considerably attenuated.
Apparently I should install the old ones, which
is not recommended.
Anybody else have noticed a change?

Benny OH9NB
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[KK7P]

> If you switch the DSP by tapping "7" while in the filter menu and have
> 50 or 100 Hz bandwidth there is quite a change in volume, however if you
> select the new default setting and rotate the width control all the
> settings are the same volume. What seems to happen is that now the
> 50/100 Hz bandwidths jump in volume with the original "IIR on" setting,
> this didn't happen on the earlier software. Any thoughts Lyle?

In the previous code releases, there were gain and centering variations
in the narrowest filters.  The latest code is exactly the same as the
previous code if you set IIR ON.  If you set IIR OFF (default) then the
gain variations are less, and the filtering better centered.

This will further improve in a near-future release.

73,

Lyle KK7P

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