On 04/24/2010 02:47 PM, Eric Schneider wrote: > On Fri, 2010-04-23 at 14:58 -0400, Marcus D. Leech wrote: > >> Anyone know of any reasonably-priced network analysers, up to 2 or >> 3GHz? Basic S21 and S11 >> measurements would be a good start. >> > I've been contemplating trying such a thing using using a WBX > daughterboard. It hasn't got past the "taking up space in the back of > my mind" stage though. > > Maybe PLL rx/tx phase ambiguity would be a show stopper for vector > operation? Sweeping a narrow range by DDC (or baseband signal) seems > doable, but restrictive. > > Perhaps using overlapping PLL tuning bands and then doing phase > alignment between each tune using the overlapping frequencies? > > Does anyone have any thoughts on any of this? > > --ETS > > > > > I've thought of this as well. I haven't acted on it, because, well my "list of things to do before the Sun goes out" is already quite long :-(
A WBX or two, a USRP1, and a couple of broadband bi-directional couplers. -- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
