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Harry,<br>
<br>
Welcome back to the hobby and to [HP]SDR...<br>
<br>
Just so there's no confusion (I'll try not to introduce any!)...<br>
<br>
The SDR-1000 conventionally connects to the PC sound card such that the
sound card does the Analog->Digital (Rx) and Digital->Analog (Tx)
piece of the puzzle. Typically you'd use a high quality sound card
with the appropriate number of inputs and outputs - such a card might
be the M-Audio Delta44 or the Edirol FA-66 (I think that's the right
Edirol type). The sound card left and right channels represent I &
Q components of the baseband signal presented by/to the SDR-1000. In
addition to this, the Radio is typically connected to the PC via a
parallel cable for the non-signal piece of the puzzle such that the
radio can change frequency, switch between Tx/Rx, etc.<br>
<br>
Flex also offered a USB->Parallel cable that enabled PCs without a
parallel port to communicate the command and control as described
above. As another person mentioned, this is not a generic
USB->Parallel cable but a special one designed for the purpose.
There are setup fields in PowerSDR where the type of interfaces in use
are specified.<br>
<br>
With the combination of Atlas, Ozy, and Janus, HSPDR took performance
to a higher level. With this configuration, the Janus board does the
A->D and D->A role, eliminating the need for the sound card
described previously. In addition, the Ozy board provides a single USB
connection to the PC for signal AND command and control. Ozy has a
parallel port connection to satisfy the needs of the radio and the USB
connection between Ozy and the PC is a general purpose USB - no special
esoteric cables needed.<br>
<br>
The benefits of the HPSDR approach are many but I think I am correct in
stating that the performance of the Janus card exceeds that of any of
the sound cards typically used.<br>
<br>
As others have stated, the main difficulty you might run into in
setting up such a SDR-1000/HPSDR solution today is availability of all
the various pieces. Magister, the interim replacement for Ozy (in
anticipation of OzyII) does not have the extra support for the SDR-1000.<br>
<br>
Depending on your needs/wishes/budget/timescale/phase of the moon? you
may wish to evaluate where you wish to go with this. In my case, as
I've been accumulating the various HPSDR boards to the point of
(more-or-less) having a functional transceiver, I reverted my SDR-1000
back to it's original state using the M-Audio Delta 44 card and the
parallel interface (my PC did not have a Parallel port but I was able
to purchase one for ~$20.00). So now my Atlas bus has Mercury,
Penelope, Ozy, and Excalibur and is accompanied by the LPU and
Pennywhistle and eagerly awaits Atlas. Janus is no longer installed in
Atlas as it no longer has a role in this configuration. Incidentally,
I can run two instances of PowerSDR and have both radios running
simultaneously on the same PC and, as nice as the SDR-1000 is, on the
Rx side of the equation, Mercury has it beat! Note also that not all
SDRs are the same - the Direct Down Conversion/Direct Up Conversion
approach embodied in Mercury/Penelope is a major improvement over the
QSD/ QSE approach used in the SDR-1000.<br>
<br>
Hope this helps.<br>
<br>
Pete, N3EVL<br>
<br>
Harry A wrote:
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<pre wrap="">***** High Performance Software Defined Radio Discussion List *****
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New ham trying to get back in the "hobby" after 40+ years out so need
obi-wan to help me "channel the force". <br>
<br>
I'm sure I'll eventually be able to determine this by searching the web
but to speed the process up:<br>
<br>
I'm looking at buying an SDR-1000 and am interested in finding out if
that product in any way ties into the hpsdr products?? One web page I
read said that the 1000 worked very well with Atlas, janus, ozzy. Is
that the case and how do they interrelate? Does it plug in the Atlas
some how? <br>
<br>
Any help/guidance appreciated.<br>
<br>
73,<br>
<br>
Harry KD0LQE<br>
<br>
<hr>The New Busy is not the too busy. Combine all your e-mail
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