<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><div>Any idea when the SDR boards will be available to buy? And the cost?</div><div><br></div><div>I was planning an SDR myself when I first saw the Osmo design. <br></div><div>There are enough similarities to make yours worth buying - namely, the same FPGA I was looking at.</div><div>I'm debating whether to buy the Lattice XP Brevia FPGA development kit. All else being equal, I'd rather give YOU guys the money...</div><div><br></div><div>Regards,</div><div><br></div><div>-- Alan Campbell<br></div><div><br></div><div>- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - </div><div>My own design ? <br></div><div>That uses a SINGLE 12-bit ADC, clocked at 48 MHz (same as USB
clock, makes for simpler circuit).</div><div>The "Zero IF Tuner" becomes a superhet design, with an IF output of 60 MHz. <br></div><div>Undersampling & downsampling in the FPGA gives a 12MHz bandwidth (actually less, depends if IFstage bandwidth & degree of downsampling)</div><div><br></div><div>2-stage RF front end: 1-30MHz (si 570 is 61-90MHz) and VHF 140-150MHz (si 570 is 80-90MHz).</div><div>- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - </div></div></body></html>