The power sensor has a frequency response calibration table built in, which lets the power sensor compensate the influence of the signal frequency to the power reading. This calibration has been made at SatService GmbH, the power sensor shows the power value at it's input connector with this calibration.
If you are going to use the power sensor mounted at a fixed location in an earth station, you might want to include your coupler calibration to make the power sensor show the real amplifier output power. For this reason it is possible to replace the calibration table in the power sensor.
The calibration table is a plain text file called FCORR.TXT. It contains a table where each line consists of a frequency value (MHz) and the correction value (dB), separated by a semicolon. The file should not contain any other information, no space characters and no empty lines. You may prepare this table with a spread sheet program like Microsoft Excel and export the table as a semicolon separated 'csv' table.
To upload your own FCORR.TXT file to the power sensor, use a standard FTP client program at the command line. Replace the default IP address from the example below with the address the power sensor is actually listening to
ftp 192.168.2.62
user name: service
password: service
ren FCORR.TXT FCORR.BAK
put FCORR.TXT
bye The suggested command sequence in the example above contains the line ren FCORR.TXT FCORR.BAK . You should do this once the before you upload a FCORR.TXT file the first time. This saves the original calibration table into the FCORR.BAK file and lets you restore the factory calibration at a later time.