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blog:dbbc_workat_yg_2013_jul_25
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blog:dbbc_workat_yg_2013_jul_25 [2013/07/26 22:44] Brett Reid |
blog:dbbc_workat_yg_2013_jul_25 [2013/08/07 00:05] (current) Brett Reid |
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| ====== DBBC work at Yg, 2013 Jul 25 ====== | ====== DBBC work at Yg, 2013 Jul 25 ====== | ||
| DBBC has had its CPU board replaced for the cooler ATOM processor board from Advantech. | DBBC has had its CPU board replaced for the cooler ATOM processor board from Advantech. | ||
| - | The earthing of the VSI cable connector has been impemented. | + | The earthing of the VSI cable connector has been implemented. |
| Jamie configured and tested the DBBC. He started a test schedule and there have been no clock jumps in 24 hours. \\ | Jamie configured and tested the DBBC. He started a test schedule and there have been no clock jumps in 24 hours. \\ | ||
| Looking at creating clock jumps by producing electrical disturbances from things such as airconditioners coming on, antenna drives switching on etc. | Looking at creating clock jumps by producing electrical disturbances from things such as airconditioners coming on, antenna drives switching on etc. | ||
| There have been no clock jumps yet. Correlater evidence suggests that the problem was happening in afternoons till sun down, around 0800 UT. That raises the posibilities of temperature was the problem or the associated electrical disturbances from A/C units cutting in and out. Unfortunately, yesterday was wet at Yg, so we are not certain the problem is fixed. \\ | There have been no clock jumps yet. Correlater evidence suggests that the problem was happening in afternoons till sun down, around 0800 UT. That raises the posibilities of temperature was the problem or the associated electrical disturbances from A/C units cutting in and out. Unfortunately, yesterday was wet at Yg, so we are not certain the problem is fixed. \\ | ||
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| + | timemon.log is the file being generated by FS containing the 2 counter readings, maserdelay and clkoff, which you can check or plot to detect jumps. \\ | ||
| July 27. Today will be warmer. Randall will come and assist with creating Electrical disturbances. I will be here till Monday, performing Yg maintenance this weekend. \\ | July 27. Today will be warmer. Randall will come and assist with creating Electrical disturbances. I will be here till Monday, performing Yg maintenance this weekend. \\ | ||
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| + | August 7th. Completed first experiment since maintenance today. R1597. There were no clock jumps. It is probably fixed. \\ | ||
| Brett Reid | Brett Reid | ||
/home/www/auscope/opswiki/data/attic/blog/dbbc_workat_yg_2013_jul_25.1374878684.txt.gz · Last modified: 2013/07/26 22:44 by Brett Reid
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