Matt, thank you for quick reply! > Andrey A wrote: >> Hello! >> >> I have two questions about USRP: >> >> 1. It is stated on >> http://www.comsec.com/wiki?UniversalSoftwareRadioPeripheral that USRP >> can sustain 32 megabytes per second over USB2.0. >> I'm about to build MIMO 2 antenna transmitter. As I and Q each occupy >> 16 bits, for two-antenna sample it will require (16*2) * 2 = 64 bits >> or 8 bytes. As a result I can get 32 / 8 = 4 mega samples per second >> and from Nyquist theorem only 2 MHz wide signals could be transmitted. >> >>
> 4 MS/s COMPLEX gives a 4 MHz nyquist band, since it is complex samples. >> Please advise whether my reasonings are right. >> >> 2. What are the TX and RX FIFO buffers' sizes on the board? >> > 2K lines, IIRC 1. Does 2K lines mean 2048 bits? 2. I noticed the HMC174MS8 switch on the tx/rx path. Does it mean what Time Division Duplex is in use? We transmit and receive signals in different time moments? Thank you! _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
