Fringe Finding Troubleshooter
If you fail to find fringes to your telescope check the following
- DAS mode is correct
- Don't forget to press "Config Hwr" button
- Correct flipped or non-flipped profile selected
- S2 configured correctly (when relevant)
- S2 record mode
- uic feedthru on
- Swap cable inserted if needed (or not)
- PC clock is correct
- Check with /usr/bin/ntpdata -q MACHINE
- MACHINE is pool.ntp.org for utas or pkvsi1-ext for atnf
- Antenna pointing at correct location
- Antenna on source at time of fringe check
- Polarisation is correct
- Maser-GPS offset is as expected
- Frequency correct
- Coherence OK
- Can detect test tone in expected place with fauto
- Disk recorder is recording OK
- Correct channels selected in disko
- fauto/vsib_checker give sensible results
- б bigbuffer has not overflowed (restart vsib_record)
ASKAP
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