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[linrad] RE: Bamboozled by bandwidth

Just getting going here and have read all the QEX articles with great 
interest. I am bewitched, bothered and bewildered over the question 
of bandwidth requirements.
It would be useful to see a display of activity taking place in the 
frequency spectrum of interest for example my operation is almost 
exclusively in the low 25 kHz of the HF CW bands.  When in QSO I only 
need a 100 Hz or so and I note that Leif states that  large 
bandwidths are primarily required for noise reduction functions but 
that increases the problems of dealing with large in-band signals.

Given a high performance HF radio (mine is a Ten-tec Omni pro) with 
100 Hz  Xtal filtering, linrad DSP and a 16 bit sound card what's to 
be gained by more elaborate hardware measures that increase bandwidth 
? What am I missing ?