[hpsdr] Call for Project Leaders!

Terry Fox tfox at knology.net
Tue Feb 13 09:01:21 PST 2007


Lyle, I may be able to help some, but I am not on the level of the rest of
the people here.  I have dabbled with SoftRocks, DDS, and other, but I am by
no means an expert.  I'm not sure what I can contribute, but I may have time
to help out.
Terry
WB4JFI

----- Original Message ----- 
From: "Lyle Johnson" <kk7p at wavecable.com>
To: "'High Performance Software Defined Radio Discussion List'"
<hpsdr at hpsdr.org>
Sent: Sunday, February 11, 2007 5:42 PM
Subject: [hpsdr] Call for Project Leaders!


> ***** High Performance Software Defined Radio Discussion List *****
>
> Here is your chance to not merely lurk, but help get some HPSDR
> *hardware* built so the HPSDR *software* can have a place to live ;-)
>
> SPecifically, it would be great to see someone step forward and organize
> the the following projetcs:
>
> 1) Horton
>
> A high-performance QSD-based receiver module.  Should use Janus if
> installed, might be designed to not require Janus.  Probably not yet
> another rehash of the QSD we've all grown familiar with, but applying
> the newer integrating QSD.
>
> Should make use of bandpass filters - perhaps a daughter board so it can
> be used with other receivers, like Mercury.
>
> Or maybe a receiver module needs to be in a small, lightweight shielded
> box so it doesn't hear all the digital hash coming from Ozy and ???  It
> might hook up using a few low-noise, twisted/shielded differential
> signals for control and to slurp the bits out, might not plut into ATLAS
> at all.  Or???
>
> 2) 1 Gigabit Ethernet-based Ozy
>
> It would be nice if an HPSDR stack didn't have to have a nearby,
> attached PC or even a Sasquatch module, but could hang on a high-speed
> Ethernet backbone and stream/de-stream its data and commands over
Ethernet.
>
> Might need a more powerful processor than the 8051 in the FX2; perhaps
> an ARM9 or a MIPS core?
>
> 3) Enclosure
>
> This all started with an idea about using a PC case.  However, a
> high-performance receiver might have a hard time coexisting with a few
> high-speed, unshielded digital boards and provide good performance.
> Perhaps someone could investigate/develop a good systems-level solution
> for an ATLAS-based collection of HPSDR modules that would allow
> configuration into a high-performance transceiver.
>
> Need to account for digital noise, thermal requirements if a 100W PA is
> included, power supply issues, how to shield modules or how to extend
> modules (LVDS?) to shielded boxes.
>
> I'm not talking about a collection of Hammond die-cast boxes with SMA
> connectors and RG-188 running everywhere; I'm thinking more of a
> purpose-built solution, the research into which may result in some
> guidelines for the Horton, Mercury, Phoenix and other boards/projects.
>
> ***
>
> Remember, HPSDR is not an organization, it is intended as a grass-roots
> association of interested parties.
>
> To my knowledge, no one is running with these projects yet. This is YOUR
> chance!
>
> 73,
>
> Lyl eKK7P
>
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