On Tue, Mar 06, 2007 at 10:46:49PM +0200, [EMAIL PROTECTED] 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 mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
