On 01/13/2011 10:33 AM, Euripedes Rocha Filho wrote: > Why not just buy a USRP + WBX? > > 2011/1/13 sirjanselot <acosta.j...@gmail.com > <mailto:acosta.j...@gmail.com>> > > > Hello, > > I am looking to buy an Altera DSP FPGA Kit (DSP Development Kit, > Stratix III > Edition) for school research but I'm not sure how i am going to > build an > RF-Front End for it. I am looking to receive signals up to +30 > dBm from 30 > MHz - 2 GHz with bandwidths up to 50 MHz. This the kit I am > looking to > purchase: > http://www.altera.com/products/devkits/altera/kit-st3-dsp.html > > This kit comes with two 150 MSPS 14-bit ADCs and 250 MSPS 14-bit > DACs. My > question is it possible to buy a Commercial off the Shelf > Front-End that > provides the necessary inputs? > > Is there something special that I have to do in order to receive > signal > levels up to +30 dBm so that my ADCs do not saturate? > Attenuators. At +30dBm, the concern isn't saturation, but *device destruction*--it would be a shame to destroy your $2800.00 Altera development board.
-- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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