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Size: 1709
Comment:
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Size: 2012
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 11: | Line 11: |
| * Check that the paddle motor works. |
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| Line 21: | Line 23: |
| * Observations on absorber ((AbsorberObs, at least once per week!) | * Observations on absorber ((AbsorberObs, '''at least once per week!''') |
| Line 30: | Line 32: |
| * Check the Bias voltage |
* Check the Bias voltage * Check the blank/sync Signal at ABBA with an oscilloscope. ('''During tests, and/or if strong spikes appear''') |
| Line 43: | Line 45: |
| ||The skydip results are abnormally high||The paddle is put in from of the beam||Ask the operator to try it by hand or contact the Rx people|| |
MAMBO2/ABBA2 Checklist
This document describe the checks and test that must be done before and during the Bolometer pool, as well as the frequency needed for these tests. (Maintained by GQ.)
The tests are divided into different groups, as they supposed to be carried by different groups of the IRAM staff (operators, AoDs, or Rxs)
OPERATOR CHECKLIST
- Bolometer temperature
- Check that the paddle motor works.
AOD CHECKLIST
Teach the observers on the general aspects of the observation even the expert MAMBO observers (weekly):
- When to switch to heterodyne
- What is a spiky scan
- Not to open a second monitor at flexible@mrt-lx3:monitor/
Do a backup of the DAFS (daily)
Observations on absorber ((AbsorberObs, at least once per week!)
- Do when the weather is too bad even for heterodyne observations.
- Do if the scans are too spiky
RXs CHECKLIST
- Check the resistance
- Check battery voltage
- Check the Bias voltage
Check the blank/sync Signal at ABBA with an oscilloscope. (During tests, and/or if strong spikes appear)
PROBLEMS AND SOLUTIONS
This is a quick guide through normal problems that appeared in the past and the possible reasons and solutions.
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PROBLEM
REASON
SOLUTION
Bololog is not updated
goPool has not been sent
Ask the operator to do so
Mopsic Monitor is not working
There is other monitor running and the DAFS files have been corrupted
Stop the second monitor and recreate the DAFS
ABBA does not start getting data
Wobbler is not wobbling
Ask the operator
ABBA does not start getting data
Wobbler works fine but the signal did not reach ABBA
Check the cable connections with ABBA
The skydip results are abnormally high||The paddle is put in from of the beam||Ask the operator to try it by hand or contact the Rx people||