Changes between Version 5 and Version 6 of Tutorials/Wireless/GNURadioOFDM

Timestamp:

Oct 4, 2023, 4:30:03 AM (14 months ago)

Author:

prasanthi

Comment:

—

Tutorials/Wireless/GNURadioOFDM

@@ -120 +120 @@
 
 }}}
-3. In case of firmware mismatch, follow the directions displayed in the error message and use uhd_image_loader to update the firmware.
+{{{#!box note width=600px
+In case of firmware mismatch, follow the directions displayed in the error message and use uhd_image_loader to update the firmware.
+}}}
+
 
 ==== Run the GRC application ====
-1. Start the OFDM receiver on node1-2
+1. Open OFDM receiver on node1-2
 {{{#!shell
-gnuradio-companion  
-}}}
-
-{{{#!shell
-root@sdr2-s1-lg1:~# gnuradio-companion  /root/gr-ettus/examples/rfnoc/rfnoc_fosphor.grc
-<<< Welcome to GNU Radio Companion 3.7.14.0 >>>
+root@node1-2:~# cd GNURadioOFDMExample/
+root@node1-2:~/GNURadioOFDMExample# gnuradio-companion RX_OFDM_GUI.grc
+<<< Welcome to GNU Radio Companion 3.9.8.0 >>>
 
 Block paths:
         /usr/local/share/gnuradio/grc/blocks
 
-Loading: "/root/gr-ettus/examples/rfnoc/rfnoc_fosphor.grc"
+Loading: "/root/GNURadioOFDMExample/RX_OFDM_GUI.grc"
 >>> Done
+
 }}}
 
 With X11 forwarding enabled, GRC should show up as below. 
 
-[[Image(TX_OFDM_grc.png, width=800px)]]
+[[Image(RX_OFDM_grc.PNG, width=800px)]]
 
-2. Run the OFDM transmitter on node1-1
+2. Open OFDM transmitter on node1-1
 {{{#!shell
+root@node1-1:~# cd GNURadioOFDMExample/
+root@node1-1:~/GNURadioOFDMExample# gnuradio-companion TX_OFDM.grc
+<<< Welcome to GNU Radio Companion 3.9.8.0 >>>
+
+Block paths:
+        /usr/local/share/gnuradio/grc/blocks
+
+Loading: "/root/GNURadioOFDMExample/TX_OFDM.grc"
+>>> Done
+
 }}}
-[[Image(TX_OFDM_grc.png, width=800px)]]
+[[Image(TX_OFDM_grc.PNG, width=800px)]]
 
 3. Make sure the device arguments on both nodes are correctly set as shown below. Check the center frequencies and sample rates, and make sure they match. TX_OFDM.grc has a "File Source" block which reads the text file to be transmitted. RX_OFDM.grc stores the received data in a local file that is specified in the "File Sink" block.  
-[[Image(TX_OFDM_grc.png, width=800px)]]
+|| [[Image(OFDM_SB2_args.PNG, width=300px)]] || [[Image(FileSource.PNG, width=300px)]] || [[Image(FileSink.PNG, width=300px]] ||
 
 4. Run the receive flowgraph followed by the transmit flowgraph. 
+[[Image(RX_OFDM_samples.PNG, width=800px)]]