TGBT15A_915_137 - VPM Scale and Filter Tests

Goals

* Test VPM scale factors with 1400 MHz and 950 MHz IF filters for incoherent and coherent 800 MHz modes

Details

  • Session begins at 14:40
  • Note: First scan is numbered 6.
  • Submitting IncoherentCalTests with 1400 MHz IF module filter.
    • Oops. Submitted wrong block. Scans #6 and #7 are i0800x0512
    • Trying again. Right block this time.
    • Scans #8--14 are i0800x0064--4096
      • All scans ran OK. Levels looked OK except for known issues in i0800x0064 mode.
  • Submitting CoherentCalTests with 1400 MHz IF module filter
    • Scans #15--21 are c0800x0064--4096
      • All scans ran OK
  • Submitting IncoherentCalTests with 950 MHz IF module filter
    • Scans #22--28 are i0800x0064--4096
      • Scans #27 and #28 didn't seem to record data, but no errors. Hmm. Didn't catch this at run time.
  • Submitting CoherentCalTests with 950 MHz IF module filter
    • Scans #29--35 are c0800x0064--4096
      • All scans ran OK
  • Restored IF module filter settings for all modes to default.
  • Note: Turret was being rotated during scans 31 and 32.
  • Session ends at 16:03

Conclusions

  • Data collected successfully. Will analyze offline.
  • Should check modes i0800x2048 and i0800x4096 again.
-- RyanLynch - 2018-02-20

This topic: CICADA > WebHome > GreenBankSpectrometer > CICADAGreenBankSpectrometerCommissioningLogs > CICADAGreenBankSpectrometer2018mar06
Topic revision: 2018-03-06, RyanLynch
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