Hi, We're using USRP2s with the RFX2400 daughterboards, and we've recently switched from the old USRP drivers to the UHD drivers as per general recommendation. However, we've run into a few problems that have us stumped:
1) Previously, our receiver gains were set to 0 dB and we had no problem receiving a signal with >30 or 40 dB SNR. However, now the UHD receiver blocks need specified gain around 30 or 40 dB to achieve this same performance; did baseline values change? 2) As far as we can tell through searching the Internet, the sampling rate in the Tx/Rx blocks has replaced the decimation and interpolation fields from the legacy blocks. But what exactly are we specifying with the sampling rate now? Is it the sampling rate the rate at which the transmitter transmits samples, with interpolation assumed if the data going into the block isn't throttled? In which case, would higher sampling rate imply lower 'interpolation' rate? Bottom line, we have no idea how to play around with the sample rate, or how important it is. Thanks for your help, Kevin Tien _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
