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Re: [Discuss-gnuradio] re: Low cost hardware option

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] re: Low cost hardware option
Date: Wed, 12 Jan 2011 22:56:58 -0500
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On 01/12/2011 10:46 PM, Brian Padalino wrote:
> Agreed on PCIe, though I think less platforms have USB3.
Almost certainly the case right now.
> When speaking of noise at baseband (2V driving 50Ohms), assuming you
> have a little can over the analog bits, is the noise that high?
Not sure--somebody should take some measurements.

I'm increasingly liking the approach where you "demarc" at the digital
output of the ADC that I suggested
  earlier where you terminate in something like a LPC-FMC connector or
something equally
  convenient, which allows you to adapt to various "getting bits to the
host" approaches.  Including:

     o 1GiGe
     o USB-2.0
     o USB-3.0
     o PCIe

But maybe that's the road to *more* expensive, not less (although cost
is only ONE of the factors
  of a project like this).

Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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