[hpsdr] SDR-1000 interface board

[Philip Covington]

I think we can use the same inexpensive $6 CPLD that Phil H is going
to use on his universal IO board to replace the PIO functions.  Along
with JANUS and Phil H's IO board it will make a very nice system all
controlled over USB.

I am looking to see if the instrumentation amp on the TRX board will
be happy with +/- 12 or better +/- 10 volts instead of the current +/-
15.  If happy with +/- 10V we can re-regulate on the PIO replacement
interface board an do some noise reduction tricks with the linear
regulators.

I think that there will be enough interest that we should come up with
a name for this board.  Anyone have suggestions?

73 de Phil N8VB


On 9/22/06, Eric Ellison <ecellison at comcast.net> wrote:
> Phil
>
> Really Novel! Should be pretty inexpensive to produce. What would go on the
> Project board (hardware wise)? I had to read this a couple of times. Since
> the Atlas is designed to go in a PC enclosure, so too could the stack! Would
> the stack be powered from the Atlas? I bet the whole shootin' match
> including 100w PA could even go in an Aria enclosure with better cooling and
> isolation.! If we could tame the noise on that 12 V ATX power supply card..
> WOW!
>
> Eric - AA4SW
>
>
> -----Original Message-----
> From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org] On Behalf Of
> Philip Covington
> Sent: Friday, September 22, 2006 3:12 PM
> To: High Performance Software Defined Radio Discussion List
> Subject: [hpsdr] SDR-1000 interface board
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi all,
>
> The reason for this post is to see if there would be any interest in
> an interface board to integrate a SDR-1000 stack on to the Altlas
> backplane.  What I envision doing is using the SDR-1000's TRX, BPF,
> and RFE board by providing a header for the board stack ( minus the
> PIO board ) to plug into this interface board.  The interface board
> (which will be an Atlas plug in board) will replace the functions of
> the PIO board.  This includes replacing the linear and noisy switching
> regulators on the PIO board.  Control of the DDS, relays, etc.. would
> come from the OZY board.  The JANUS board would be used for the sound
> interface.  Connection to the PC and the PowerSDR software would be
> over one USB connection only - no audio cables.
>
> This will obviously void the SDR-1000 warranty, but many of us have
> older SDR-1000 units that are either out of warranty already or have
> already been modified in some other way not supported by the factory.
> I have a three board stack with RFE board that is gathering dust
> because of continuous problems ( mainly soldering related ) with the
> PIO board.   I would like to get some use out of it.
>
> Anyone interested in such a board?
>
> 73 de Phil N8VB
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