Table of Contents
Advertisement
2
CALCulate Subsystem
CALCulate:FUNCtion
CALCulate:FUNCtion
Syntax
CALCulate:FUNCtion {AVERage|DB|DBM|HOLD|LIMit|NULL}
This command selects the calculation function to be used.
• AVERage: Returns the mathematical average of all readings taken since
• DB: When enabled, the dB operation computes the dBm value for the next
• DBM equation: Result = 10 × Log
• HOLD: The reading hold feature allows you to capture and hold a stable
• LIMit: Compares each reading against upper and lower limits. Limit
• NULL equation: Result = Reading – Offset
20
averaging was enabled. Use CALCulate:AVERage:AVERage?,
CALCulate:AVERage:MAXimum?, CALCulate:AVERage:MINimum?,
CALCulate:AVERage:COUNt? and CALCulate:AVERage:PRESent? to
return the average, maximum, minimum, count, and last reading taken
respectively, since averaging was enabled.
reading, stores the dBm result into the dB Ref register and immediately
produces the following calculation. The first computed reading is always
precisely 00.000 dB.
Result = 10 × Log
[Reading
10
Set a reference value in the dB reference register of the instrument with the
CALCulate:DB:REFerence command.
Set the reference resistance (R
command.
reading (refer to the U3606B Service Guide for details).
Set the variation and threshold values with the
CALCulate:HOLD:VARiation and CALCulate:HOLD:THReshold
commands.
failures are posted in the Questionable Status register.
Set the upper and lower limits with CALCulate:LIMit:UPPer and
CALCulate:LIMit:LOWer, respectively. Check for limit failures with the
STATus:QUEStionable[:EVENt]? command.
Set the Offset using the CALCulate:NULL:OFFSet command
2
/ R
/ 0.001 W] – dB Ref
REF
2
[Reading
/ R
10
REF
) with the CALCulate:DBM:REFerence
REF
U3606B Programmer's Reference
/ 0.001 W]
Advertisement
Table of Contents
