Agilent Technologies E4445A User Manual

Chapter 3 169
Instrument Functions: M - O
Marker
Instrument Functions: M - O
Remote Command Notes: The :CALC:MARK:PEAK:SEARC:MODE MAX|PAR command
specifies how a peak is identified for use with the marker commands. See
“Peak Search” on page 209.
Example: CALC:MARK:MODE POS selects marker 1 and sets it to
Normal.
CALC:MARK2:X 20 GHZ selects marker 2 and moves it to 20 GHz. (Marker
2 must first be turned on.)
3.1.1 Select Marker
Selects one of the four possible marker or marker pairs. Once a marker is selected, it can
be set to any of the control modes,
Normal, Delta, Delta Pair, Span Pair, or Off.
Key Path:
Marker
State Saved: The number of the selected marker is saved in instrument state.
Factory Preset: Marker 1
Remote Command:
:CALCulate:MARKer[1]|2|3|4:STATe OFF|ON|0|1
:CALCulate:MARKer[1]|2|3|4:STATe?
Sets or queries the state of a marker. Setting a marker to state ON or 1 selects that
marker. Setting a marker which is OFF to state ON or 1 puts it in
Normal mode and places
it at the center of the display. Setting a marker to state OFF or 0 selects that marker and
turns it off. The response to the query will be 0 if OFF, 1 if ON.
Example: CALC:MARK2:STAT ON selects marker 2.
CALC:MARK:STAT ON will not modify a marker that is already on.
3.1.2 Normal
Sets the control mode for the selected marker to Normal (see “Marker” on page 167). If the
marker is off, a single marker is activated at the center of the display. The marker stays on
the trace at the horizontal screen position where it was placed unless
Signal Track, or a
“marker to” key function (such as
Mkr → CF, Mkr → RL, Mkr → CF STEP, Mkr ∆ Span, or Min
Search
) is selected. If you are in a marker pair mode, for example Delta Marker, the
reference marker is turned off. You can then adjust the trace point of the marker.
Key Path:
Marker
Remote Command:
See “Marker” on page 167 for the mode command.
Example: :CALC:MARK:MODE POS selects marker 1 and sets it to
Normal.

Agilent Technologies E4445A Specifications

General

Brand	Agilent Technologies
Model	E4445A
Category	Measuring Instruments
Language	English

Summary

2. Instrument Functions: A − L

Marker Functions

Manages markers for trace analysis: Normal, Delta, Span Pair, Off, Marker Trace, Readout.

MEASURE Functions

Displays measurement menu for transmitter power, ACP, OBW, and distortion measurements.

MODE and Mode Setup

Selects measurement mode and configures common settings across measurements.

Peak Search Functions

Places marker on highest peak and displays search menu with parameters like Threshold and Excursion.

Preset Functions

Provides actions for instrument state reset: User, Mode, Factory presets, and Save User Preset.

SPAN / X Scale Functions

Activates Span function and displays menu for Span, Span Zoom, Full Span, Zero Span, Last Span.

SWEEP Functions

Controls sweep time, mode (continuous/single), auto sweep time, and gate parameters.

5 Programming Fundamentals

SCPI Language Basics

Introduces SCPI programming language, keywords, syntax, and parameters.

Improving Measurement Speed

Provides tips to make programs run faster, such as turning off display updates and using binary format.

Using the LAN to Control the Instrument

Details on configuring and controlling the instrument using LAN, including FTP, Telnet, Socket LAN, SICL.

Programming in C Using the VTL

Provides basic information about programming in C language using Agilent VTL (VISA transition library).

6 Using the STATus System

Status System Commands

Lists IEEE (*) Commands and STATus Commands for instrument status monitoring.

Using the Status Registers

Explains the PSA instrument status registers, their hierarchy, and how to use them.

7 Menu Maps: Spectrum Analysis

AMPLITUDE Y Scale Key

Menu maps for AMPLITUDE Y Scale functions, covering Reference Level, Attenuation, Scale, Presel, Corrections.

Auto Couple Key

Menu maps for Auto Couple, covering Auto All, FFT & Sweep, Detector, Avg/VBW Type, ADC Dither/Ranging.

BW/Avg Key

Det/Demod Key

Display Key

File Key

FREQUENCY Channel Key

Input/Output Key

Marker Key

Accesses marker control menu: Normal, Delta, Delta Pair, Span Pair, Off, Marker Trace, Readout.

Marker --> Key

Marker Fctn Key

MODE Key

Peak Search Key

Places marker on highest peak and displays search menu with parameters like Threshold and Excursion.

Preset Key

Provides actions for instrument state reset: User, Mode, Factory presets, and Save User Preset.

SPAN X Scale Key

SWEEP Key

System Key

Trig Key