USRP Source usrp_simple_source_x from grc_gnuradio import usrp as grc_usrp grc_usrp.simple_source_$(type.fcn)(which=$which, side=$side, rx_ant=$rx_ant#if $hb_filters() then ', no_hb=True' else ''#) #if $format() self.$(id).set_format(width=$format.width, shift=$format.shift) #end if self.$(id).set_decim_rate($decimation) self.$(id).set_frequency($frequency, verbose=True#slurp #if $lo_offset() != float('inf') , lo_offset=$lo_offset#slurp #end if ) self.$(id).set_gain($gain) set_decim_rate($decimation) set_frequency($frequency#slurp #if $lo_offset() != float('inf') , lo_offset=$lo_offset#slurp #end if ) set_gain($gain) Output Type type enum Complex complex fcn:c Short short fcn:s Format format enum #if $format() then '' else 'part'# 16 Bits (Default) width:16 shift:0 8 Bits, Shift 8 w8_s8 width:8 shift:8 Unit Number which 0 int Decimation decimation int Frequency (Hz) frequency real LO Offset (Hz) lo_offset float('inf') real #if $lo_offset() == float('inf') then 'part' else 'none'# Default float('inf') Gain (dB) gain 0 real Side side A string A A B B RX Antenna rx_ant RXA string RXA RXA RXB RXB RXAB RXAB TX/RX TX/RX RX2 RX2 Halfband Filters hb_filters enum #if $hb_filters() then 'none' else 'part'# Enable Disable 1 out $type The USRP source outputs 64 Megasamples per second / decimation. The "Receive Antenna Setting" selects one of the SMA connectors as the data source. \ Flex RF boards use the "TX/RX" and "RX2" settings. \ Basic RX and LFRX use the "RXA", "RXB", and "RXAB" settings. \ All other boards use the "RXA" setting. With the format set to 8 bits and the halfband filters disabled, the USRP can acheive a decimation rate of 4. \ Disabling the halfband filters requires a special USRP firmware without halfband filters or TX paths. \ For this reason, the USRP cannot transmit with the halfband filters disabled.