Agilent Technologies 34401A Math Operations, Freq Per Cont Diode Ratio Null Min-Max DBm Limit

Chapter 3 Features and Functions

Math Operations

Math Operations

There are five math operations available, only one of which can be enabled at a time. Each math operation performs a mathematical operation on each reading or stores data on a series of readings.

The selected math operation remains in effect until you disable it, change functions, turn off the power, or perform a remote interface reset. The math operations use one or more internal registers. You can preset the values in some of the registers, while others hold the results of the math operation.

	The following table shows the math/measurement function combinations								3
	allowed. Each “X” indicates an allowable combination. If you choose a
	math operation that is not allowed with the present measurement
	function, math is turned off. If you select a valid math operation and
	then change to one that is invalid, a “Settings conflict” error is generated
	from the remote interface.
	DC V	AC V	DC I	AC I	Ω 2W	Ω 4W	Freq	Per Cont Diode Ratio
Null	X	X	X	X	X	X	X	X
Min-Max	X	X	X	X	X	X	X	X	X
dB	X	X
dBm	X	X
Limit	X	X	X	X	X	X	X	X	X

From the front panel, you enable a math operation by pressing the appropriate key. The exception is Limit Test which you enable using the LIMIT TEST command in the MATH MENU.

From the remote interface, the math operations and registers are controlled using commands within the CALCulate command subsystem. First, select the math operation you want to use (the default function is null):

CALCulate:FUNCtion {NULLDBDBMAVERageLIMit}

Then, enable the selected math function by turning the math state on:

CALCulate:STATe ON

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