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operations:documentation.test_recording
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operations:documentation.test_recording [2012/08/15 04:39] Jim Lovell created |
operations:documentation.test_recording [2012/08/16 02:14] (current) Jim Lovell |
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| Check the last numbers are the correct date at the start of the scan, duration, the data rate (should be 256 for the 8MHz mode, 128 for the 4 MHz mode) and 0 at the end for no problems. Then plot an autocorrelation from the data: | Check the last numbers are the correct date at the start of the scan, duration, the data rate (should be 256 for the 8MHz mode, 128 for the 4 MHz mode) and 0 at the end for no problems. Then plot an autocorrelation from the data: | ||
| <code>postob</code> | <code>postob</code> | ||
| - | The output should appear in the pcfs[hb|ke|yg] VNC session. Good data should contain quite flat bandpasses and zero phase. See [[operations:monitoring_autocor|autocorrelation spectra plots]] for an example and what problems to look out for. If there's a problem, the DBBC may need reconfiguring. | + | The output should appear in the pcfs[hb|ke|yg] VNC session. Good data should contain quite flat bandpasses and zero phase. See [[operations:monitoring_autocor|autocorrelation spectra plots]] for an example and what problems to look out for. If there are dropped or strange-looking bands, the [[hardware:dbbc.reprogram|DBBC may need reprogramming]]. |
| - | To clear the disk module, ONLY IF YOU'RE CERTAIN there is no data already on the disk! | + | To clear the disk module, ONLY IF YOU'RE CERTAIN there is no useful data (e.g. from a previous experiment) already on the disk! |
| - | <code> mk5=protect=off; mk5=reset=erase </code> | + | <code>mk5=protect=off |
| - | [[operations:monitoring_autocor|Check that the spectra are OK]]. | + | mk5=reset=erase </code> |
| - | If there are dropped or strange-looking bands, the [[hardware:dbbc.reprogram|DBBC may need reprogramming]]. | + | |
| + | Now repeat this test on the second module (if it's loaded): | ||
| + | |||
| + | Swap the module with the following commands: | ||
| + | <code> | ||
| + | mk5=bank_set=inc | ||
| + | ready_disk | ||
| + | </code> | ||
| + | Then repeat the test. Lastly, go back to the first module: | ||
| + | <code> | ||
| + | mk5=bank_set=inc | ||
| + | ready_disk | ||
| + | </code> | ||
/home/www/auscope/opswiki/data/attic/operations/documentation.test_recording.1345005547.txt.gz · Last modified: 2012/08/15 04:39 by Jim Lovell
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