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Re: [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how? |
Date: |
Tue, 6 Mar 2007 13:33:53 -0800 |
User-agent: |
Mutt/1.5.9i |
On Tue, Mar 06, 2007 at 10:46:49PM +0200, address@hidden wrote:
>
> And indeed I've thought about saturating the ADC. I first thought
> about a varistor for the sole purpose of protecting it from voltage
> spikes, but I realized that it could cause clipping, which would look
> like overmodulation and could drown signals in noise.
> One of the High Speed Data Transfers videos behind the link I posted
> in the blog mentions a circuit I could use to condition the input
> before it reaches the ADC, and it also mentions a balun very, very
> briefly. I think of all of this as the RF frontend, and a problem I
> don't need to solve yet. The RF frontend should be designed to allow
> for undersampling too, so it's far from straight-forward. I think I'll
> be designing it or looking for existing designs as the last thing,
> because it is so important.
>
> --
> Nos
FYI, there's a discussion on front-end protection taking place right
now on the hpsdr list. Lots of clueful discussion, including parts
selection, etc.
Here's the head of the thread:
http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/2007-March/003744.html
Eric
- [Discuss-gnuradio] A low-budget SDR - Was: PCIe know-how?, ceriel, 2007/03/05
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Brian Padalino, 2007/03/05
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, ceriel, 2007/03/05
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Brian Padalino, 2007/03/05
- Re: [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Kim Toms, 2007/03/05
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, ceriel, 2007/03/06
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Brian Padalino, 2007/03/06
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, ceriel, 2007/03/06
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Brian Padalino, 2007/03/06
- [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, ceriel, 2007/03/06
- Re: [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?,
Eric Blossom <=
- Re: [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Eric A. Cottrell, 2007/03/17
- RE: [Discuss-gnuradio] Re: A low-budget SDR - Was: PCIe know-how?, Henry Vredegoor, 2007/03/06