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Subject: MultiTasking
From: K8DO@aol.com (K8DO@aol.com)
Date: Thu Aug 17 13:17:36 1995
Hi steve...
I have not used OS2 at all... The gurus at the local computer shop speak
highly of it... I plan to install OS2 in the near future and see for myself..
(I'm currently maxxed out with building a house, shack, contest station, and
working 12 to 14 hours a day... A new OS will have to wait until I clear the
decks here...)  They also like the NX version of Deskview...  Windows is a
dog!  If the public understood how badly they have been ripped off by
Microsoft, there would be a lynching...It is the exclusive licensing
contracts by MS that force the vendors to include MS DOS/Windows with every
computer sold that has created the ubiquity of MS products, not their
In any event, I  know from experience that you would like DeskView as a
multitasking OS for DOS based software....

Cheers ... Denny

>From H. Ward Silver" <hwardsil@seattleu.edu  Thu Aug 17 17:19:12 1995
From: H. Ward Silver" <hwardsil@seattleu.edu (H. Ward Silver)
Subject: DSP at IF
Message-ID: <Pine.3.07.9508170911.G11475-a100000@bach.seattleu.edu>

A cautionary note on DSP at the IF...

Dynamic range is directly proportional to number of bits.  Remember the
great Intermod problems of the 70's as we converted to all solid-state
receivers?  Insufficient dynamic range of the filter software and A/D
converters may prove to be trouble.  The acid test will be during SS in
November.  The IF stages require less dynamic range than the mixer and RF
amp stages, but it's still a concern.

Ultimate rejection may be better than that of analog filters, however.  I
think the best combination would be good analog filters (3kHz on SSB and
1kHz on CW) in the early IF stages to control overall bandpass
characteristics, and then a variable DSP in the final IF.

Don't expect a magic solution.  There will very likely be new and exciting
problems akin to the intercept-point and linearity issues than had to be
conquered previously.  It's a new area of endeavor and it will be a fun
thing to evaluate and play with!

73, Ward N0AX

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