[hpsdr] The Future of HPSDR?

[David McQuate]

I'll also stick my neck out!  John's comments caused some excitement here.
I've started to read about Gnuradio, and begun to install the software and
all its prerequisites under Cygwin.  My knowledge of Mercury, Ozy and
Penelope, though far from encyclopedic, may well be adequate for creating
Gnuradio source and sink modules for HPSDR. 

If anyone has already begun this task, or knows of a place to find info on
creating Gnuradio source and sink modules--requirements, conventions,
etc. please let me know!

Thank you and 73,
Dave
wa8ywq

John Ackermann wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I'll stick my neck out, too, since I'm not in a position to help with 
> this, but...
>
> There's a software defined radio toolkit called Gnuradio 
> (http://gnuradio.org/trac) that allows you to "build" an SDR in a few 
> lines of high-level code.  It's written primarily for Linux but can be 
> made to work under Windows.  It's been used to create cellular and 
> WiFi systems, GPS receivers, and all nature of academic projects.
>
> The software is hardware agnostic, but needs some sort of ADC/DAC 
> device to do anythign useful.  There's a driver interface for the 
> Ettus Research (http://www.ettus.com) USRP-1 (USB interface) and 
> USRP-2 (GigE interface), and they have been the hardware used for most 
> of the development.  The USRPs, though, are designed as very general 
> purpose devices, and while they can operate at HF, they can't deliver 
> nearly the HF performance or convenience of the HPSDR system.
>
> An Gnuradio interface to HPSDR would be very, very cool.  It would 
> enable a "toolkit" approach to SDR development.  As good as PowerSDR 
> is, it's hard for the casual hacker to dig into, and its console 
> structure limits what you can do with things like multiple receivers.  
> The KISS Konsole is more accessible, but is still built around a 
> fairly fixed GUI design.  With Gnuradio, you can easily try out very 
> different concepts in radio design.
>
> I've been around long enough to know that "he who codes, rules" and 
> that ideas are a lot easier than actions, but I think a Gnuradio HPSDR 
> interface is a development effort that would pay dividends for a long 
> time to come.
>
> John
> ----
> Paul Cecil said the following on 10/01/2009 06:19 PM:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> I decided to stick my neck out and start a discussion. Where do we go 
>> with HPSDR in the future? Sometime soon the last of the boards needed 
>> to make a working HPSDR radio will have been completed. Is this the 
>> end of HPSDR? We tell folks that HPSDR is "an open source (GNU type) 
>> hardware and software project intended as a "next generation" 
>> Software Defined Radio (SDR) for use by Radio Amateurs ("hams") and 
>> Short Wave Listeners (SWLs)." It won't be long before the hardware 
>> that was used will be last generation. So should we start working on 
>> HPSDR II? We have a flexible system that will allow us to replace 
>> individual boards with upgraded boards. It would be easy to just 
>> upgrade our current boards with faster chips, but that is not 
>> necessarily next generation. Or, do we take-off on a new direction? 
>> Do we start looking at a way of merging hardware and software to make 
>> a more flexible radio as some have imagined? Wouldn't it be great to 
>> be able to upload new firmware and have the hardware rearrange itself 
>> to optimize the "radio" for the mode we want to use?
>>
>> So fellow HPSDR enthusiasts... where do we go from here?
>>
>> Paul Cecil
>> KA5FPT
>> Bath, Maine
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