[hpsdr] The basics

[kd5nwa]

Don't forget "Edgy Elf" to run the receiver software.


On Tue, 2006-05-02 at 13:01 -0700, Alex wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> I've read the list archive, I've looked at the websites and the blog and I still have some problems with the focus of the different boards.
> So let me put together what I've read (with my questions):
> 
> ATLAS - A power and data bus backplane.  Designed to use an off-the-shelf ATX power supply
> 
> JANUS - An ADC/DAC board to interface to a SDR-1000 with a USB interface
> 
> LIONHEART - An FPGA-based controller card for the ATLAS backplane with an FX2-based USB interface
> 
> MERCURY - An ATLAS backplane 0-30MHz direct sampling receiver with a 130MHz A/D with and FPGA-based DDC.
> 
> SASQUATCH - An I/O board for interfacing analog controls to the ATLAS backplane (knobs, lights, switches, dials, etc.)
> 
> OZYMANDIAS -  An ATLAS backplane-based ADC/DAC Card
> 
> "TBD" - An ATLAS backplane card extender and prototyping board
> 
> 
> I ask questions for a living (requirements engineer). My (initial) questions are:
> 
> If MERCURY is also meant to be "stand-alone", why not just use LIONHEART and ATLAS with a 13.8 VDC ATX power supply and save the time/cost of developing a second version of MERCURY?
> 
> What is the difference between OZYMANDIAS and JANUS? Why does JANUS not use LIONHEART for the USB interface?
> (I gather that JANUS is the old Xylo-SDR and OZYMANDIAS is the old HPSDR design)
> 
> Is the focus on getting a stand-alone system or one that is a FEP (Front-end processor) for a computer (Win or Linux)? 
> 
> Is the following the suggested configuration for an operating system?
>     BACKPLANE - ATLAS
>     192kHz RECEIVER / TRANSMITTER - OZYMANDIAS
>     30MHz RECEIVER -  MERCURY
>     CONTROLLER - LIONHEART
>     I/O BOARD - SASQUATCH
> 
> 
> Alex, N3NP
> 
> 
> 
> 
> 
> 
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