This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
hardware:dbbc.calibration [2013/01/29 22:52] Jim Lovell |
hardware:dbbc.calibration [2013/10/02 03:56] Jim Lovell |
||
---|---|---|---|
Line 1: | Line 1: | ||
====== DBBC Calibration ====== | ====== DBBC Calibration ====== | ||
* Apply a tone of 764 MHz at -15 dBm to one input 1 of all four CoMos | * Apply a tone of 764 MHz at -15 dBm to one input 1 of all four CoMos | ||
- | * Set dbbc_config_file.txt to be dbbc_control_file_calibration.txt | + | * Use dbbc_config_file_104_calibration.txt |
- | * Start DBBC Control.exe | + | |
* Set dbbcifa/b/c/d=3,agc,1 (i.e. input 3, filter 1) | * Set dbbcifa/b/c/d=3,agc,1 (i.e. input 3, filter 1) | ||
+ | * Once gains have stabilised, turn off the agc loop with dbbc=dbbcgain=all,man | ||
* Run "calibration" in DBBC Control | * Run "calibration" in DBBC Control | ||
+ | * dbbc=dbbcgain=all,agc | ||
* The results are written to C:\ as yyyy-ddddThhmmss-calib.txt | * The results are written to C:\ as yyyy-ddddThhmmss-calib.txt | ||
- | * The file has 5 columds: phase, CoMo A/B/C/D value. Pick the phase at the null past the first peak. | + | * The file has 5 columns: phase, CoMo A/B/C/D value. Pick the phase at the null past the first peak. |