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Hi Larry,<br>
<br>
We have generally moved away from DttSP. From your list below, it
looks like the latest version we used in PowerSDR was:<br>
<br>
<font face="courier new, monospace">W5WC/PowerSDR_HPSDR_mRX/Source/DttSP
321d 19h 3049<br>
</font><br>
That sounds about right as I recall. <br>
<br>
As far as I know, Flex still uses DttSP in their version of
PowerSDR. Our openHPSDR evolution was to first re-write parts of
that version and then later, as I mentioned, move on to a newly
developed library, "wdsp".<br>
<br>
With regard to your DttSP questions: I believe that DttSP was
written with the goal of being computer architecture and OS
INdependent. The version in PowerSDR has a fairly substantial
interface piece that is more or less tied to the software
architecture of PowerSDR. The good news is that there's an
interface there and it can be used in other applications; the bad
news is that it limits the flexibility of the underlying library.<br>
<br>
I believe that there must be several users of DttSP out there.
openHPSDR has not made any effort to share fixes and improvements or
participate in a general DttSP repository, at least for quite some
time. All the changes we made are, of course, open source and
available to anyone to use subject to the terms of the GNU GPL v2
license.<br>
<br>
73,<br>
Warren NR0V<br>
<br>
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