Goals:

• continue ripple tests.
• mode 3 after Galen's IF module
• Do comparison spectrum with Spectrometer and Q-band

Info:

• TGBT13B_502_46

Log:

• Scan 66: RippleQbandMode3 -- input after Galen's IF module (but before convert module).
• input is before converter module
• Scan 67: RippleQbandMode1 -- no good. need to change attenutation levels.
• Scan 68: RippleQbandMode1 -- no good. Still fiddling with attenutation levels.
• Scan 69: RippleQbandMode1 -- changed LO freq to 11300 from 15000 because noise source has a bandpass of 800-1400 MHz. Also needed to manually change the convert rack attenuation. Saved cleo config to file to check.
  • CM1 = 2 dB
  • CM5 = 8 dB
  • CM2 = 9 dB
  • CM6 = 7 dB
• Scan 70: RippleQbandMode2 -- paused and got config before running scan.
• Scan 71: RippleQbandMode3 -- paused and got config before running scan.
• Disconnected cables and handed system over to Melinda for a while.
• Scan 74: nchan_test -- trying to see if nchans is now right. VEGAS wouldn't stop, so aborted and will try again.
• no scan 75?
• Scan 76: nchan_test -- trying to see if nchans is now right
• Scan 77: ifnum_test -- ran.
• Realized I need to run multiple versions of ifnum_test to see if the problem still exists.
• Scan 78-82: ifnum_test -- modified version of ifnum_test to take 5 in a row, then I can see if the pattern repeats.
• needed to restart turtle
• Scan 83-83: KFPAMode20OnOff1Beams1Spws -- checking that not getting VEGAS bank A manager error. seems to be okay.
• Scan 85: RippleQbandSpect -- ripple test with the Spectrometer (whole receiver path)

Notes:

• According to Melinda, change projects to make astrid forget everything. She doesn't remember if you need to do something in the other project.