| 102 | | === Multi-channel Uhd STreamer === |
| | 102 | |
| | 103 | === Transmit a signal using a single usrp === |
| | 104 | While the above receiving end is running, transmit a signal from another usrp on the grid. To do this select a node(s) to use as a transmitter and load this node with the same image as node21-1. For this example we'll use the usrp on node19-1 with the tuning parameters described under ''/devices/grid_tx'' in ''devices.xml''. Run the hardware interface application in the transmit direction. |
| | 105 | {{{ |
| | 106 | root@node19-1:> ./rf_hw_intf --conf "devices.xml,/devices/grid_tx" --tx-only --cmd-port 5112 |
| | 107 | }}} |
| | 108 | |
| | 109 | Create a signal from an octave script and pass it to the transmit signal handler application for transmission every 500 microseconds. |
| | 110 | {{{ |
| | 111 | root@node19-1:> samps="octave -qf awgn256.m" |
| | 112 | root@node19-1:> ./sigtran --sig "`$samps`" --intv 500 |
| | 113 | }}} |
| | 114 | |
| | 115 | Upon transmission of the signal, the boxplot of the received signal strength will update to reflect the transmitted signal. As an exercise modify the signal generated in awgn256.m and rerun the application. |
| | 116 | |
| | 117 | === Multi-channel Uhd STreamer (MUST) === |
