Hi Everyone, It appears to me that it would be principally only a little software to turn the SDR-1000 into a quality Vector Network Analyzer similar to the N2PK VNA
http://users.adelphia.net/~n2pk/VNA/VNAarch.html only using the 11 KHz IF. I have got to build my homemade SDR-1000 before I can try this, but some of you with one already available to play with should try it. It requires running the transmitter at low power (probably using one watt or less and a step attenuator would be a good idea), and receiving the signal from a reflection bridge (for S11 or S22) or through a network (for S12 or S21). You will need to have a known 50 ohm load, and a good short and open to calibrate the measurements. I suggest saving the magnitude and phase of the received signal to a file so you can massage and display it in Scilab or Octave. I would be happy to offer help and suggestions and Scilab or Octave help to anyone interested in this project. 73, Rob, KL7NA -- Rob Frohne, Ph.D., P.E. E.F. Cross School of Engineering Walla Walla College 100 SW 4th Street College Place, WA 99324 (509) 527-2075 http://www.wwc.edu/~frohro -------------- next part -------------- A non-text attachment was scrubbed... Name: frohro.vcf Type: text/x-vcard Size: 318 bytes Desc: not available Url : http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20060513/004c8de0/frohro.vcf _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com