Usage for printLOsFromASDM
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It's sometimes useful to know the LO settings or YIG frequencies in a dataset. Unfortunately the ASDM does not contain the value of the TFB LO (a.k.a. LO4) for FDM projects, so printing LO1 and LO2 is the best we can do. However, where applicable, I have attempted to compute the value of the TFB LO based on the central frequency of each spectral window and the other LOs. An optional second argument specifies the spw or list of spws to print. See also
getLOsFromASDM to get a dictionary result, or
printLOs to operate on an ms instead.
Usage:
au.printLOsFromASDM(sdmfile, spw='', showCentralFreq=False, showYIG=True,
showEffective=False, showChannelAverageSpws=False, showWindowFactors=False)
Inputs:
- sdmfile: the ASDM (it is sufficient to export it with asdmExport -m)
- spw: limit the display to a single spw: can either be an integer list, a single integer, or a comma-delimited string
- showCentralFreq: if False, then show the first channel instead of the mean
- showYIG: if True, then compute what the YIG frequency must have been
- showEffective: if True, show the effective bandwidth and resolution of a channel
- showChannelAverageSpws: if True, then also show those spws with a single channel
- showWindowFactors: if True, then show ratio of effective bandwidth and effective resolution to the channel width (ICT-2542)
Examples:
CASA <2>: au.printLOsFromASDM('uid___A002_X1d9d21_X3c1', showCentralFreq=False)
spw BB# Chan RxId Ch1Frq(GHz) LO1(GHz) LO2(GHz) Sampler YIG(GHz) TFBoffset(MHz)
0 0 4 WVR 184.550000
1 1 128 07 355.740063 350.836250 8.896000 4.00 19.490903
2 1 1 07 356.716625 350.836250 8.896000 4.00 19.490903
3 2 128 07 356.507813 350.836250 9.663750 4.00 19.490903
4 2 1 07 357.484375 350.836250 9.663750 4.00 19.490903
5 3 128 07 346.792187 350.836250 8.036250 4.00 19.490903
6 3 1 07 345.784375 350.836250 8.036250 4.00 19.490903
7 4 128 07 345.182438 350.836250 9.646000 4.00 19.490903
8 4 1 07 344.174625 350.836250 9.646000 4.00 19.490903
9 1 128 07 344.386763 350.353075 9.958500 4.00 19.464060
10 1 1 07 343.378950 350.353075 9.958500 4.00 19.464060
11 2 128 07 346.324263 350.353075 8.021000 4.00 19.464060
12 2 1 07 345.316450 350.353075 8.021000 4.00 19.464060
13 3 128 07 354.402388 350.353075 8.041500 4.00 19.464060
14 3 1 07 355.378950 350.353075 8.041500 4.00 19.464060
15 4 128 07 356.402388 350.353075 10.041500 4.00 19.464060
16 4 1 07 357.378950 350.353075 10.041500 4.00 19.464060
17 1 3840 07 356.497936 350.836250 8.896000 4.00 19.490903 3000.000 +0.000
18 1 1 07 356.732189 350.836250 8.896000 4.00 19.490903
19 4 3840 07 357.734314 350.836250 9.663750 4.00 19.490903 3468.628 +468.628
20 4 1 07 357.499939 350.836250 9.663750 4.00 19.490903
21 3 3840 07 346.034314 350.836250 8.036250 4.00 19.490903 3000.000 -0.000
22 3 1 07 345.799939 350.836250 8.036250 4.00 19.490903
23 2 3840 07 343.955936 350.836250 9.646000 4.00 19.490903 3468.628 +468.628
24 2 1 07 344.190189 350.836250 9.646000 4.00 19.490903
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ToddHunter - 2011-11-02