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Entry  Mon Aug 21 19:33:27 2017, Craig, DailyProgress, BEAT, Calibrated Spectrum in Hz/rtHz 20170821_185329_CalibratedSpectrum.pdf20170821_181139_PLL_OLGTFs.pdf20170821_190252_TransBeatnoteSpectrum.pdfCalSpec.tar.gz
    Reply  Mon Aug 21 21:54:59 2017, rana, DailyProgress, BEAT, Calibrated Spectrum in Hz/rtHz 
    Reply  Tue Aug 29 00:12:44 2017, Craig, DailyProgress, BEAT, Calibrated Spectrum in Hz/rtHz 20170829_000237_CalibratedSpectrum.pdf
Message ID: 1873     Entry time: Mon Aug 21 21:54:59 2017     In reply to: 1872
Author: rana 
Type: DailyProgress 
Category: BEAT 
Subject: Calibrated Spectrum in Hz/rtHz 
  1. The noise spectra must always extend to 1 MHz for these measurements. So you can't use the SR785. Sometimes you might think you can get away with it, and some "experienced" people may say that its OK, but they are bad.
  2. The loop measurements must always go up to 10 MHz. The PLL bandwidth must be <100 kHz so that the phase margin is not so low.
  3. it would be very useful if there was a simple python library import that could give us the function 'zip_for_elog()'. This function would make the tarball of all the figures and dependencies each time you run the plotting script with this simple include.
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