<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14px"><div dir="ltr"> I would have a principal electornic schematic of SDR?</div><div dir="ltr">thank's for helping.</div></div></body></html>