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Re: [Discuss-gnuradio] GPSDR's - An open standard for time-stamped RF da

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] GPSDR's - An open standard for time-stamped RF data exchange.
Date: Mon, 3 Aug 2009 08:02:08 -0700
User-agent: Mutt/1.5.18 (2008-05-17)

On Sun, Aug 02, 2009 at 07:35:19PM -0500, L. Van Warren wrote:
> We have a chance to make history, with an array of GPS disciplined SDR's -
> GPSDR's for short
> This is the ham radio equivalent of HTML - a "lingua franca" for RF data
> exchange.
> Enabling radio amateurs to share signals + timing information over the
> internet from their GPSDR's opens an amazing vista of experimentation and
> opportunity.
> It requires defining AND implementing a way of doing business where business
> = GPS disciplines Oscillator time-stamps SDR spectral buffers. 
> Those signals common to 4 such receivers can be uniquely located in
> space-time regardless of their location using multilateration. 
> Mapping signal location leads to discovery, mundane as in your light dimmer
> or microwave oven, exciting as in tracking black holes, satellites, etc.
> If we could figure out how to do it with SoftRocks, that would be awesome
> and cost-effective. For technical reasons we need hardware with RF ADC's.

FWIW we're planning on using the VITA Radio Transport (VRT) Protocol,
aka VITA-49:


It supports picosecond resolution timestamps, GPS, and a bunch more.


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