BNC 835 Programmer Manual - Manual (Page 33)

Berkeley Nucleonics Corporation 2955 Kerner Blvd., San Rafael, CA 94901
Phone: 415-453-9955, Fax: 415-453-9956, Email: [email protected], Web: www.berkeleynucleonics.com
This command presets the user- flatness correction to a factory- defined setting that consists of one
point.
CAUTION The current correction data will be overwritten once this command is executed. Save the
current data if needed. Refer to :FLATness:STORe command for storing user- flatness files.
:FLATness[:STATe]
[:SOURce]:CORRection:FLATness[:STATe] ON|OFF|1|0
[:SOURce]:CORRection:FLATness[:STATe]?
This command enables or disables the user- flatness corrections.
*RST 0
:MEMory:FILE:CORRection:FLATness:DATA
:MEMory:FILE:CORRection:FLATness:DATA {<”filename”>},
:MEMory:FILE:CORRection:FLATness:DATA? {<”filename”>}
The command writes data to a flatness correction file.
The query returns flatness correction file data.
Data sent or received has IEEE488.2 definite block data format:
#{
specifies how many digits are contained in .
specifies how many data bytes follow in .
Example of definite block data:
#2141000000000;1.0
#214…: byte count is two digits wide
#214…: 14 data bytes will follow
…1000000000;1.0: 14 bytes of data
The flatness correction data itself consists of values separated by semicolon “;” and rows separated by
carriage return “\r” and/or newline “\n”. Two values (frequency in Hz, power correction in dBm) make a
row. Each row defines one flatness correction point.
Example of two points flatness correction (first point 100 MHz, +1 dB; second point 200 MHz, -1 dB):
100000000;1.0\r\n
200000000;-1.0;\r\n
: MEMory:FILE:CORRection:FLATness:LOAD
:MEMory:FILE:CORRection:FLATness:LOAD ""
This command loads a user- flatness correction file. The "" variable is the name of the file
located in the directory USERFLAT. The directory path is implied in the command and need not be
specified in the variable name.
: MEMory:FILE:CORRection:FLATness:STORe