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lbaops:atcaobservingsummary

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lbaops:atcaobservingsummary [2016/06/23 12:37]
chrisphillips [Stowing]
lbaops:atcaobservingsummary [2016/06/23 12:38]
chrisphillips [Troubleshooting]
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 =====  Troubleshooting ===== =====  Troubleshooting =====
   *  ** Phase variation in vis > 60deg or so**: Either run "cor pcal" in caobs while observing a compact calibrator for a few minutes, or drop antenna from the tied array   *  ** Phase variation in vis > 60deg or so**: Either run "cor pcal" in caobs while observing a compact calibrator for a few minutes, or drop antenna from the tied array
-  *  **In 64 MHz mode, sampler stats are noth close to ideal 17.3/32.6% range**: If the "​extreme"​ stats (usually around 17.3% are too large you need to **reduce** tied array gain. If the "​extreme"​ values are too small, you need to increase gain. On the caccc1:1 VNC, type "​tie"​ into the command window of cacor. Increase or decrease the gain in increments of 0.01 with the syntax ''​tie gain XX XX'',​ based on the value recorded when you just typed ''"​tie"''​+  *  **In 64 MHz mode, sampler stats are not close to ideal 17.3/32.6% range**: If the "​extreme"​ stats (usually around 17.3% are too large you need to **reduce** tied array gain. If the "​extreme"​ values are too small, you need to increase gain. On the caccc1:1 VNC, type "​tie"​ into the command window of cacor. Increase or decrease the gain in increments of 0.01 with the syntax ''​tie gain XX XX'',​ based on the value recorded when you just typed ''"​tie"''​
   *  **cdisko freezes**: Try killing the GUI (via window manager or ^C fro starting terminal) and restarting. Killing the GUI should not interrupt the recording   *  **cdisko freezes**: Try killing the GUI (via window manager or ^C fro starting terminal) and restarting. Killing the GUI should not interrupt the recording
   *  **DAS IF power level is out of range**: Adjust attenuation in loGUI (see above)   *  **DAS IF power level is out of range**: Adjust attenuation in loGUI (see above)
lbaops/atcaobservingsummary.txt · Last modified: 2016/06/23 12:39 by chrisphillips