[[Include(/WikiToC)]] == Generating and Observing Basic FR3 Sine Wave == === Description === This 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 === Prerequisites === === Resources required === === Tutorial Setup === Follow the steps below to gain access to the [wiki:/hardware/Domains/sb1 sandbox 1 console] and set up nodes with appropriate images. 1. If you don't have one already, sign up for a [https://www.cosmos-lab.org/portal-2/ COSMOS account] 1. [wiki:/GettingStarted#MakeaReservation Create a resource reservation] on COSMOS sandbox 1 1. [Documentation/Short/Login Login] into sandbox 1 console (console.sb1.cosmos-lab.org) with two SSH sessions. 1. Make sure all the resources in the domain are turned off: {{{#!shell omf tell -a offh -t system:topo:allres }}} 1. The image is [. Load xxx.ndz on sdr1-piradio and sdr2-piradio. {{{#!shell omf load -i xxx.ndz -t sdr1-piradio,sdr2-piradio }}} 1. Turn all the required resources on and check the status {{{#!shell omf tell -a on -t sdr1-piradio,sdr2-piradio,rfdev-sdr1-piradio,rfdev-sdr2-piradio }}} {{{#!shell omf stat -t system:topo:allres }}} 1. ssh to the USRP 2974s nodes and start the chrome remote desktop session (follow the instructions at) {{{ }}} === Experiment Execution === {{{ tx_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 }}} {{{ rx_ascii_art_dft --args "resource=RIO0" --subdev A:0 --freq 1.5e9 --ant RX2 --rate 20e6 }}}