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Basic Usage

Timestamp:: May 16, 2019, 6:11:04 PM (6 years ago)
Author:: nilanjan
Comment:: —

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Tutorials/Wireless/Basic Usage

-              v5
+              v6
 In this tutorial we'll demonstrate how to navigate from the COSMOS sandbox to a single SDR on a node and run an application to read samples from the SDR.
-=== Prerequisites ===
-Before getting started you'll need the following:
-. sign up for a [https://cosmos-lab.org/portal-2/ COSMOS account]
-. create a reservation for sandbox 1 using the [https://wiki.cosmos-lab.org/cPanel/controlPanel/start scheduler].
-. some minimal knowledge or interest of Linux
 === Set up ===
+ * After your reservation request has been approved, you'll receive access to the sandbox1 console.
+Open a terminal into console.sb1.cosmos-lab.org with a tunnel set up from localhost:5000 to srv1-lg1.sb1.cosmos-lab.org:9002
+{{{
+                                       Welcome to
+   _____ ____   _____ __  __  ____   _____      _               ____
+  / ____/ __ \ / ____|  \/  |/ __ \ / ____|    | |        /\   |  _ \
+ | |   | |  | | (___ | \  / | |  | | (___ _____| |       /  \  | |_) | ___  _ __ __ _
+ | |   | |  | |\___ \| |\/| | |  | |\___ \_____| |      / /\ \ |  _ < / _ \| '__/ _` |
+ | |___| |__| |____) | |  | | |__| |____) |    | |____ / ____ \| |_) | (_) | | | (_| |
+  \_____\____/|_____/|_|  |_|\____/|_____/     |______/_/    \_\____(_)___/|_|  \__, |
+                                                                                 __/ |
+                                                                                |___/
+ Hostname         : console.sb1.cosmos-lab.org
+ Operating system : Ubuntu 16.04.5 LTS; Kernel: 4.15.0-45-generic; Arch: x86_64;
+ CPU              : 6 x Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz
+socket(s) with 6 core(s) per socket and 1 thread(s) per core
+ Memory           : 3.9G
+ Uptime           : up 4 days, 14 hours, 15 minutes
+ Users logged in  : 0
+Last login: Tue Feb 26 19:06:09 2019 from 165.230.132.125
+}}}
+ * We can see the available nodes under this sandbox using the ''omf stat -t all'' command. The nodes list below should coinside with the [https://wiki.cosmos-lab.org/cPanel/controlPanel/start Inventory/Status page].
+{{{
+nilanjan@console:~$ omf stat -t all
+-----------------------------------------------
+ Node: srv1-lg1.sb1.cosmos-lab.org       State: POWEROFF
+ Node: srv2-lg1.sb1.cosmos-lab.org       State: POWEROFF
+-----------------------------------------------
+}}}
+ * For this example we'll use the node ''srv1-lg1.sb1.cosmos-lab.org'' and load the ''baseline-sdr.ndz'' image onto it. This image already has the applications pre-compiled and drivers installed.
+{{{
+console:~$ omf load -i baseline-sdr.ndz  -t srv1-lg1.sb1.cosmos-lab.org
+}}}
+ After the image is successfully loaded turn on the node, give it some time to boot and then ssh into it.
+{{{
+console:~$ omf tell -a on -t srv1-lg1.sb1.cosmos-lab.org
+console:~$ ssh native@srv1-lg1.sb1.cosmos-lab.org
+}}}
+ * Once you're in ''srv1-lg1.sb1.cosmos-lab.org'' configure the network interface so it can talk to the N310's data interface.
+{{{
+sudo ifconfig enp1s0 10.115.1.1 netmask 255.255.0.0 mtu 8000
+}}}
+For this example we used the Krypton SDR on console.sb1.cosmos-lab.org. Follow the steps below to gain access to this console and set up your node with an appropriate image.
+. Sign up for a [https://cosmos-lab.org/portal-2/ COSMOS account]
+. [Documentation/Short/CreateRes Create a resource reservation on sandbox 1]
+. [Documentation/Short/Login Login into your reserved domain.]
+. Load baseline-uhd1.ndz on your resource. [Documentation/Short/LoadImage  - this is done via OMF commands.]
+When opening a terminal into console.sb1.cosmos-lab.org set up a tunnel from localhost:5002 to sdr2-lg1.sb1.cosmos-lab.org:9002. This will be used by the web app to connect to a server running on the Krypton's host.
+=== Configure and detect the radio ===
+ * Once your node is ready and turned on, ssh into the Krypton's host
+{{{
+console:~$ ssh root@sdr2-lg1.sb1.cosmos-lab.org
+}}}
+* Configure and load the appropriate PCIe driver to access the Krypton's radio. Detailed steps for driver install and radio detection are on the [https://wiki.cosmos-lab.org/wiki/tutorials/krypton_usage Krypton usage page]. If the drivers are already pre-install on the image, just start the modules using ''niusrprio_pcie''.
+{{{
+root@sdr2-lg1:~# /usr/local/bin/niusrprio_pcie start
+}}}
  Run ''uhd_find_devices' and check if the N310 is detected
 {{{
+native@localhost:~$ uhd_find_devices
 [INFO] [UHD] linux; GNU C++ version 7.3.0; Boost_106501; UHD_3.13.1.0-0-unknown
+root@sdr2-lg1:~# uhd_find_devices --args="type=x300"
+[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501; UHD_3.14.0.HEAD-0-g6875d061
 --------------------------------------------------
 -- UHD Device 0
 --------------------------------------------------
 Device Address:
+    serial: 315A35A
+    addr: 10.115.2.1
+    claimed: False
+    mgmt_addr: 10.113.2.1
+    mgmt_addr: 10.115.2.1
+    product: n310
+    type: n3xx
+--------------------------------------------------
+-- UHD Device 1
+--------------------------------------------------
+Device Address:
+    serial: 3176DF7
+    addr: 10.115.3.1
+    claimed: False
+    mgmt_addr: 10.113.3.1
+    mgmt_addr: 10.115.3.1
+    product: n310
+    type: n3xx
+}}}
+ The above output enumerates all the SDRs that were detected.
+ Use the ''uhd_usrp_probe'' command with a ''mgmt_addr'' to get more details on a specific n310.
+{{{
+native@localhost:~$ uhd_usrp_probe --args="mgmt_addr=10.113.2.1,addr=10.115.2.1"
+[INFO] [UHD] linux; GNU C++ version 7.3.0; Boost_106501; UHD_3.13.1.0-0-unknown
+[INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=10.113.2.1,type=n3xx,product=n310,serial=315A35A,claimed=False,addr=10.115.2.1
+[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000004)
+[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1346 MB/s)
+[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1356 MB/s)
+[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1347 MB/s)
+[INFO] [MPM.PeriphManager] init() called with device args `time_source=internal,clock_source=internal,product=n310,mgmt_addr=10.113.2.1'.
+[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1355 MB/s)
+[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000011312)
+[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000011312)
+    serial: 31557B9
+    fpga: HG
+    name:
+    product: X310
+    resource: RIO0
+    type: x300
+}}}
+ The above output enumerates all the SDRs that were detected. Krypton has only one PCIe radio device of type=x300.
+ Use the ''uhd_usrp_probe'' command to get more details on the x300.
+{{{
+root@sdr2-lg1:~# uhd_usrp_probe --args="type=x300"
+[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501; UHD_3.14.0.HEAD-0-g6875d061
+[INFO] [X300] X300 initialization sequence...
+[INFO] [X300] Connecting to niusrpriorpc at localhost:5444...
+[INFO] [X300] Using LVBITX bitfile /usr/local/share/uhd/images/usrp_x310_fpga_HG.lvbitx...
+[INFO] [X300] Radio 1x clock: 200 MHz
+[INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929a
+[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000)
+[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1301 MB/s)
+[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1303 MB/s)
+[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001)
+[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000000001)
 [INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
 [INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
 [INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000002)
 [INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000002)
+[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
+[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
   _____________________________________________________
+ /
 |       Device: N300-Series Device
+|       Device: X-Series Device
 |     _____________________________________________________
 |    /
+|   |       Mboard: ni-n3xx-315A35A
+|   |   eeprom_version: 1
+|   |   mpm_version: 3.13.1.0-gbbce3e45
+|   |   pid: 16962
+|   |   product: n310
+|   |   rev: 5
+|   |   rpc_connection: remote
+|   |   serial: 315A35A
+|   |   type: n3xx
+|   |   MPM Version: 1.2
+|   |   FPGA Version: 5.2
+|   |   FPGA git hash: d0360f7.clean
+|   |       Mboard: X310
+|   |   revision: 12
+|   |   revision_compat: 7
+|   |   product: 30810
+|   |   mac-addr0: 00:11:22:33:44:55
+|   |   mac-addr1: 66:77:88:99:aa:bb
+|   |   gateway: 192.168.10.1
+|   |   ip-addr0: 192.168.10.2
+|   |   subnet0: 255.255.255.0
+|   |   ip-addr1: 192.168.40.2
+|   |   subnet1: 255.255.255.0
+|   |   ip-addr2: 255.255.255.255
+|   |   subnet2: 255.255.255.0
+|   |   ip-addr3: 255.255.255.255
+|   |   subnet3: 255.255.255.0
+|   |   serial: 31557B9
+|   |   FW Version: 6.0
+|   |   FPGA Version: 35.1
+|   |   FPGA git hash: 4c165a5
 |   |   RFNoC capable: Yes
 |   |
 |   |   Time sources:  internal, external, gpsdo, sfp0
 |   |   Clock sources: external, internal, gpsdo
 |   |   Sensors: gps_locked, gps_tpv, ref_locked, fan, gps_sky, gps_time, temp
+|   |   Time sources:  internal, external, gpsdo
+|   |   Clock sources: internal, external, gpsdo
+|   |   Sensors: gps_gpgga, gps_gprmc, gps_time, gps_locked, gps_servo, ref_locked
 |   |     _____________________________________________________
 |   |    /
 |   |   |       RX Dboard: A
+|   |   |   ID: UBX-TDD (0x0203)
+|   |   |   Serial: 31584CF
 |   |   |     _____________________________________________________
 |   |   |    /
 |   |   |   |       RX Frontend: 0
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX, RX2, CAL, LOCAL
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 75.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Name: UBX RX
+|   |   |   |   Antennas: TX/RX, RX2, CAL
+|   |   |   |   Sensors: lo_locked
+|   |   |   |   Freq range: 10.000 to 6000.000 MHz
+|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
+|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
 |   |   |   |   Connection Type: IQ
 |   |   |   |   Uses LO offset: No
 |   |   |     _____________________________________________________
 |   |   |    /
+|   |   |   |       RX Frontend: 1
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX, RX2, CAL, LOCAL
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 75.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |       RX Codec: A
+|   |   |   |   Name: ads62p48
+|   |   |   |   Gain range digital: 0.0 to 6.0 step 0.5 dB
+|   |     _____________________________________________________
+|   |    /
+|   |   |       RX Dboard: B
+|   |   |   ID: UBX-TDD (0x0203)
+|   |   |   Serial: 31584EE
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       RX Frontend: 0
+|   |   |   |   Name: UBX RX
+|   |   |   |   Antennas: TX/RX, RX2, CAL
+|   |   |   |   Sensors: lo_locked
+|   |   |   |   Freq range: 10.000 to 6000.000 MHz
+|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
+|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
 |   |   |   |   Connection Type: IQ
 |   |   |   |   Uses LO offset: No
 |   |   |     _____________________________________________________
 |   |   |    /
+|   |   |   |       RX Codec: A
+|   |   |   |   Name: AD9371 Dual ADC
+|   |   |   |       RX Codec: B
+|   |   |   |   Name: ads62p48
+|   |   |   |   Gain range digital: 0.0 to 6.0 step 0.5 dB
+|   |     _____________________________________________________
+|   |    /
+|   |   |       TX Dboard: A
+|   |   |   ID: UBX-TDD (0x0202)
+|   |   |   Serial: 31584CF
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       TX Frontend: 0
+|   |   |   |   Name: UBX TX
+|   |   |   |   Antennas: TX/RX, CAL
+|   |   |   |   Sensors: lo_locked
+|   |   |   |   Freq range: 10.000 to 6000.000 MHz
+|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
+|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: QI
+|   |   |   |   Uses LO offset: No
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       TX Codec: A
+|   |   |   |   Name: ad9146
 |   |   |   |   Gain Elements: None
 |   |     _____________________________________________________
 |   |    /
+|   |   |       RX Dboard: B
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       RX Frontend: 0
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX, RX2, CAL, LOCAL
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 75.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: IQ
+|   |   |   |   Uses LO offset: No
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       RX Frontend: 1
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX, RX2, CAL, LOCAL
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 75.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: IQ
+|   |   |   |   Uses LO offset: No
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       RX Codec: B
+|   |   |   |   Name: AD9371 Dual ADC
+|   |   |   |   Gain Elements: None
+|   |     _____________________________________________________
+|   |    /
+|   |   |       TX Dboard: A
+|   |   |       TX Dboard: B
+|   |   |   ID: UBX-TDD (0x0202)
+|   |   |   Serial: 31584EE
 |   |   |     _____________________________________________________
 |   |   |    /
 |   |   |   |       TX Frontend: 0
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 65.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: IQ
+|   |   |   |   Uses LO offset: No
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       TX Frontend: 1
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 65.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: IQ
+|   |   |   |   Uses LO offset: No
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       TX Codec: A
+|   |   |   |   Name: AD9371 Dual DAC
+|   |   |   |   Gain Elements: None
+|   |     _____________________________________________________
+|   |    /
+|   |   |       TX Dboard: B
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       TX Frontend: 0
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 65.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: IQ
+|   |   |   |   Uses LO offset: No
+|   |   |     _____________________________________________________
+|   |   |    /
+|   |   |   |       TX Frontend: 1
+|   |   |   |   Name: Magnesium
+|   |   |   |   Antennas: TX/RX
+|   |   |   |   Sensors: lo_locked, lowband_lo_locked, ad9371_lo_locked
+|   |   |   |   Freq range: 1.000 to 6000.000 MHz
+|   |   |   |   Gain range all: 0.0 to 65.0 step 0.5 dB
+|   |   |   |   Gain range rfic: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range dsa: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Gain range amp: 0.0 to 0.0 step 0.0 dB
+|   |   |   |   Bandwidth range: 20000000.0 to 100000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: IQ
+|   |   |   |   Name: UBX TX
+|   |   |   |   Antennas: TX/RX, CAL
+|   |   |   |   Sensors: lo_locked
+|   |   |   |   Freq range: 10.000 to 6000.000 MHz
+|   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
+|   |   |   |   Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz
+|   |   |   |   Connection Type: QI
 |   |   |   |   Uses LO offset: No
 |   |   |     _____________________________________________________
 |   |   |    /
 |   |   |   |       TX Codec: B
 |   |   |   |   Name: AD9371 Dual DAC
+|   |   |   |   Name: ad9146
 |   |   |   |   Gain Elements: None
 |   |     _____________________________________________________
 …
 |   |   |   * DUC_1
+}}}
+=== Run application ===
+From root/SPECTRUM_VIEW directory run the pre-compiled application that can read samples from the N310.
+{{{
+native@localhost:~$ cd SPECTRUM_VIEW/
+native@localhost:~/SPECTRUM_VIEW$ ./app_read_n310_samples
+}}}
+=== Run the application ===
+From root/SPECTRUM_VIEW directory run the pre-compiled application that can read samples from the Krypton's radio. There are two channels inside the radio which are being read out but only the first channel is displayed.
+{{{
+root@sdr2-lg1:~/SPECVIEW_VIEW# cd SPECTRUM_VIEW/
+root@sdr2-lg1:~/SPECVIEW_VIEW# ./app_read_sdr_samples
  INFO  11:51:08.262 (main.cpp:623) - Starting command server at 5180
  INFO  11:51:08.262 (main.cpp:175) - Starting websock server at 9002
 ...........
 }}}
+In short the application runs a server listening for commands. Just to briefly demonstrate the functionality, open the spectrum_view.html file in a Chrome browser, this will issues commands to configure the N310 and display a short spectrum width.
+When the viewer is first opened, you should see the text CONNECTED below the plot.
+In short the application runs a server listening for commands. Just to briefly demonstrate some functionality, open the spectrum_view.html file in a Chrome browser.
+When the viewer is first opened, the page display should be similar to the following
  || [[Image(basic_usage_spectrum_view_1.png, width=500px)]] ||
+Ensure the localhost field is set to ''localhost:5002'' and the device type field is set to ''type=x300''.
+Click the ''connect'' button once and a "WebSocket Connection" statement should be output by the application.
+Now click on ''make'' to create a device handle. Finally click on ''submit'' to adjust the radio parameters and the ''Go'' button to display a short spectrum bandwidth.
 Keep the default values for RATE, FREQ, GAIN and click on the HALTED button. This should display the spectrum if all went well.