I have been using the USRP and gnuradio version 3.1.2 to run the back-end of a 4 channel UHF radio for about a year. I use the std_4rx_0tx.rbf firmware and decimate by 250 to give me a 256 kHz bandwidth. I recently upgraded to gnuradio version 3.2.2 to begin a similar project. In this version I can only decimate up to 128 in the fpga.
Does this mean that the halfband filter is no longer implemented in the firmware, or that it was never implemented and the decimation done previously was erroneous (could contain aliased signals)? Additionally some of the function calls for the usrp, such as nddc() and nduc(), have been changed, to nddcs() and nducs(). Is there a compatibility issue from the old usage to the new or was this a stylistic change? Thank you, Todd Borrowman _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
