Re: [Discuss-gnuradio] VCO
I would like to ask about the VCO in GRC. What's the function of the sensitivity? If I connect a signal source (Saw Tooth) into VCO, and I want a bandwidth of 2MHz. I only can achieve it by setting the Sentivity = 2e6 *(2*3.1416) . Can anyone explain the theory behind this? may the source be with you: https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/vco_c_impl.cc The VCO block generates a sincos output at a rate of sensitivity/sampling_rate, so that the phase increments by 2pi (one cycle rotation) every sampling_rate/sensitivity samples. This is also what is given in http://www.ece.uvic.ca/~elec350/grc_doc/ar01s02s05.html stating that the sensitivity is in rad/sec*V. JM -- JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe, 25000 Besancon, France This message was sent using IMP, the Internet Messaging Program. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] VCO
I would like to ask about the VCO in GRC. What's the function of the sensitivity? If I connect a signal source (Saw Tooth) into VCO, and I want a bandwidth of 2MHz. I only can achieve it by setting the Sentivity = 2e6 *(2*3.1416) . Can anyone explain the theory behind this? may the source be with you: https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/vco_c_impl.cc The VCO block generates a sincos output at a rate of sensitivity/sampling_rate, so that the phase increments by 2pi (one cycle rotation) every sampling_rate/sensitivity samples. This is also what is given in http://www.ece.uvic.ca/~elec350/grc_doc/ar01s02s05.html stating that the sensitivity is in rad/sec*V. JM -- JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe, 25000 Besancon, France This message was sent using IMP, the Internet Messaging Program. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] VCO
Hi all, I would like to ask about the VCO in GRC. What's the function of the sensitivity? If I connect a signal source (Saw Tooth) into VCO, and I want a bandwidth of 2MHz. I only can achieve it by setting the Sentivity = 2e6 *(2*3.1416) . Can anyone explain the theory behind this? Thank you! ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] VCO Phase noise of DBSRX
Dear All, Has anyone characterized the VCO phase noise in DBSRX daughter card. Best Regards, Nagaraj ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
