Changes between Initial Version and Version 1 of Tutorials/Wireless/FR3/Sine


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Timestamp:
Aug 12, 2025, 12:39:27 AM (8 days ago)
Author:
seskar
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  • Tutorials/Wireless/FR3/Sine

    v1 v1  
     1[[Include(/WikiToC)]]
     2
     3== Generating and Observing Basic FR3 Sine Wave ==
     4
     5=== Description ===
     6
     7This experiment uses two USRP 2974s for baseband processing and two PiRadio SDRs for up/down conversion to FR3 bands. Transmit USRP sends the basic sinewave at 1.5 GHz to the PiRadio SDR which upconverts it to 10 GHz and sends it over the antenna to the receiving antenna on second Pi-Radio which down coverts it to 1.5 GHz and send it to USRP for further processing (DFT) and display
     8 
     9=== Prerequisites ===
     10
     11
     12=== Resources required ===
     13
     14=== Tutorial Setup ===
     15
     16Follow the steps below to gain access to the [wiki:/hardware/Domains/sb1 sandbox 1 console] and set up nodes with appropriate images.
     17 1. If you don't have one already, sign up for a [https://www.cosmos-lab.org/portal-2/ COSMOS account]
     18 1. [wiki:/GettingStarted#MakeaReservation Create a resource reservation] on COSMOS sandbox 1
     19 1. [Documentation/Short/Login Login] into sandbox 1 console (console.sb1.cosmos-lab.org) with two SSH sessions.
     20 1. Make sure all the resources in the domain are turned off:
     21{{{#!shell
     22omf tell -a offh -t system:topo:allres 
     23}}}
     24 1. The image  is [.   
     25  Load xxx.ndz on sdr1-piradio and sdr2-piradio. 
     26{{{#!shell
     27omf load -i xxx.ndz -t sdr1-piradio,sdr2-piradio
     28}}}
     29 1. Turn all the required resources on and check the status
     30{{{#!shell
     31omf tell -a on -t sdr1-piradio,sdr2-piradio,rfdev-sdr1-piradio,rfdev-sdr2-piradio
     32}}}
     33{{{#!shell
     34omf stat -t system:topo:allres
     35}}}
     36 1. ssh to the USRP 2974s nodes and start the chrome remote desktop session (follow the instructions at)
     37
     38{{{
     39 
     40}}}
     41
     42=== Experiment Execution ===
     43
     44{{{
     45tx_waveforms --args "resource=RIO0" --subdev A:0 --freq 1.5e9 --ampl 0.7 --gain 30 --wave-type SINE --ant TX/RX --rate 10e6 --wave-freq 5e6
     46}}}
     47
     48{{{
     49rx_ascii_art_dft --args "resource=RIO0" --subdev A:0 --freq 1.5e9 --ant RX2 --rate 20e6
     50}}}