Changes between Version 29 and Version 30 of Tutorials/k0SDR/Tutorial25


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Timestamp:
Nov 22, 2017, 7:25:11 PM (6 years ago)
Author:
tingjunchen
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  • Tutorials/k0SDR/Tutorial25

    v29 v30  
    4646make
    4747}}}
    48  * Check the conection and serial number of the USRP N210 at {{{node11-10}}}: {{{uhd_find_devices}}}. The serial number should be {{{F331D4}}}.
     48 * Check the conection and serial number of the USRP N210 using command {{{uhd_find_devices}}}. The serial number should be {{{F331D4}}}.
    4949 * Run the example with IQ rate {{{rate}}}, carrier frequency {{{freq}}}, TX gain {{{tx-gain}}}, and RX gain {{{rx-gain}}}:
    5050{{{
    … …  
    5959make
    6060}}}
    61  * Check the connection to the SUB-20 device: {{{lbusb}}}. You should see a XDIMAX devices connected to the USB hub.
    62  * Program and configure the RF canceller with the desired values:  {{{./rf_canc_config ATT PS C1 C2 C3}}}
     61 * Check the connection to the SUB-20 device using command {{{lbusb}}}. You should see a XDIMAX devices connected to the USB hub.
     62 * Program and configure the RF canceller with the desired values:
     63{{{
     64./rf_canc_config ATT PS C1 C2 C3
     65}}}
    6366 In particular, the {{{ATT = 0, 1, 2, ..., 127}}} and {{{PS = 0, 1, 2, ..., 255}}} codes are for configuring the 7-bit attenuator and 8-bit phase shifter of the Gen-1 RF canceller. It is recommended to use {{{C1 = 16, C2 = 3, C3 = 9}}}. You can play with the values of {{{ATT}}} and {{{PS}}} until you see good cancellation profile (e.g., low residual self-interference power level) in Terminal 1.
    6467