--- Carl Moreschi <n4py@earthlink.net> wrote:
> If the DSP code were improved to make this filter
> have steeper skirts, the propagation delay through
> the filter would be too long for QSK operation.
> I believe the speed of the DSP microprocessor
> and constrants imposed on full QSK limit
> the filter to its current value.
>
Wouldn't it be a nice firmware enhancement to offer
additional "modes" that provide for sharper filter
skirts, even if it means not using QSK in those
instances? There are times where fast RX/TX switching
simply isn't important but having extremely narrow
steep skirted filters are. Keep in mind I'm thinking
in terms of adding additonal modes/filters not
replacing any of the current ones.
Duane
N9DG
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