| 1 | defProperty('freq', 1500e6, "Starting rx frequency")
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| 2 | defProperty('dwell', 3, "Number of seconds at each frequency step")
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| 3 |
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| 4 | defGroup('txnode', 'node2-2.grid.orbit-lab.org') { |n|
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| 5 | }
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| 6 |
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| 7 | defGroup('rxnode', 'node1-1.grid.orbit-lab.org,node20-20.grid.orbit-lab.org') { |n|
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| 8 | }
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| 9 |
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| 10 | onEvent(:ALL_UP) do |event|
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| 11 | info "Give machines some time to warm up"
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| 12 | wait 4
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| 13 |
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| 14 | info "activate"
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| 15 | allGroups.uhd.u0.activate # starts UHD daemon
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| 16 | wait 3
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| 17 |
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| 18 | info "set tx parameters"
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| 19 | group("txnode").uhd.u0.txfreq = property.freq # set tx frequency (Hz)
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| 20 | group("txnode").uhd.u0.txrate = "8e6" # set tx sampling rate
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| 21 | group("txnode").uhd.u0.txgain = "30" # set tx gain (dB)
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| 22 | group("txnode").uhd.u0.txampl = "0.7" # set tx wavform amplitude
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| 23 | #group("txnode").uhd.u0.txwavefreq = "1e6"
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| 24 | group("txnode").uhd.u0.txwavetype = "CONST" # set type of waveform to transmit = {CONST, SINE, RAMP}
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| 25 | group("txnode").uhd.u0.transmit # start transmitting
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| 26 |
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| 27 | group("rxnode").uhd.u0.rxfreq = property.freq # set rx frequency
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| 28 | group("rxnode").uhd.u0.rxrate = "8e6" # set rx sampling rate
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| 29 | group("rxnode").uhd.u0.rxgain = "25" # set rx gain
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| 30 | group("rxnode").uhd.u0.numbins = "128" # number of fft points
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| 31 | group("rxnode").uhd.u0.avgwinlen = "32" # set averaging window size for each fft bin across time.
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| 32 | group("rxnode").uhd.u0.omlfile = "spectrum.grid" # oml database file name to store fft data
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| 33 | group("rxnode").uhd.u0.omlserver = "idb2:3003" # oml server
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| 34 | group("rxnode").uhd.u0.record # start recording
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| 35 |
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| 36 | (0..30).each { |i| # set up loop
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| 37 | offset = (rand()*4).to_f # find next transmit frequency
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| 38 | cf = property.freq + (offset*1e6)
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| 39 | group("txnode").uhd.u0.txfreq = cf # set new transmit frequency
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| 40 | wait property.dwell # wait for a few seconds
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| 41 | }
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| 42 |
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| 43 |
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| 44 | allGroups.uhd.u0.stop # stop transmitting and stop recording
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| 45 | allGroups.uhd.u0.deactivate # stop UHD daemon
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| 46 |
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| 47 | info "Finish it."
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| 48 | Experiment.done
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| 49 | end
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