Paramount MX User Guide
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Retrieve PEC Table from Control System (Get Button)
Click the Get button to retrieve the PEC table that has been saved to the mount’s firmware. The PEC
Table graph shows the text Reading PEC Table… while the data is being retrieved from the Bisque TCS.
Delete PEC Table from Control System (Delete Button)
Click the Delete button to permanently delete the PEC table that is stored in the Bisque TCS. The PEC
Table graph shows the text Deleting PEC Table… while the data is being deleted from the Bisque TCS.
Paste Custom PEC Table (Paste Button)
Retrieve the periodic error correction table values from the Clipboard and display them on the PEC
graph.
Copy Custom PEC Table (Copy Button)
Click this button to copy the current periodic error correction table values from the graph to the
Clipboard in ASCII text format. The format of the ASCII text data is two space delimited columns:
• the zero-based table index (0-999 for the Paramount MX, 0-1249 for the Paramount ME)
• the relative mount-specific periodic error correction.
Column values must be separated by a minimum of one space character (no tabs), with carriage return
line feed pairs at the end of the line.
The following text shows an example ASCII PEC table.
0<0x20><0x20><0x20>-9<CR><LF>
1 -9<CR><LF>
2 -9<CR><LF>
3 -10<CR><LF>
4 -10<CR><LF>
5 -10<CR><LF>
6 -10<CR><LF>
7 -11<CR><LF>
8 -11<CR><LF>
9 -11<CR><LF>
10 -11<CR><LF>
. . .
1248 -8<CR><LF>
1249 -9<CR><LF>
PEC Table Index
This value shows a number (1-1000 for the Paramount MX or 1-1250 for the Paramount ME) that
represents the position of the worm in the table of PEC corrections.
Compute PEC Curve Tab
The Paramount’s (ME and MX) periodic error specification is a maximum of 7 arcseconds peak to peak
periodic error before periodic error correction. The actual periodic error of most Paramount mounts
before correction is around 3.5 arcseconds peak to peak. The difference between the mount's actual
periodic error and the specified periodic error can be caused by minute variations in the mount's
internal components (gears, worms, pulleys, belts, etc.).
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