Agilent 70903A Users Guide

User's Guide

HP

Spectrum

HP

Source-Controlled Modules

70000

70900B

Series

Analyzer

Local

Modular

Oscillator

System

ABCDE

HP Part No. 70900-90286

Printed in USA March 1994

Edition A.0.0

Notice

The information contained in this document is subject to change without notice.

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but not limited to, the implied warranties of merchantability and tness for a particular

purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing, performance, or use of this material.

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Computer Software Restricted Rights clause at FAR 52.227-19 for other agencies.

c



Copyright Hewlett-Packard Company 1990, 1991, 1992, 1994

is prohibited, except as allowed under the copyright laws.

1400 Fountaingrove Parkway, Santa Rosa, CA 95403-1799, USA

Certication

Hewlett-P

time

measurements

T

echnology

facilities

of

shipment

of

ackard

,

to

other

Company

from

the

are

traceable

the

extent

International

certies

factory

to

allowed

that

this

product

.

Hewlett-P

the

United

by

the Institute's calibration facility, and to the calibration

ackard further certies that its calibration

States

National

Standards Organization members.

met

its published specications at the

Institute of Standards and

Warranty

This

Hewlett-P

workmanship

ackard

for

a

instrument

period

product is warranted against defects in material and

of one year from date of shipment. During the warranty period,

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be defective.

For warranty service or repair, this product must be returned to a service facility designated by

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shall

pay

shipping

country

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with

that

instrument.

shipping

charges

ackard

an

instrument will execute its programming instructions when properly installed on

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duties

, and taxes for products returned to Hewlett-Packard from another

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to

return

the

product

to

Buyer

.

However

, Buyer shall pay all

that its software and rmware designated by Hewlett-Packard for

ackard does not warrant that the operation of the instrument, or

software, or rmware will be uninterrupted or error-free.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate

maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modication or

misuse, operation outside of the environmental specications for the product, or improper

site

preparation

or

maintenance

.

NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HEWLETT-PACKARD SPECIFICALLY

DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

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Ex

clusive Remedies

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OR ANY OTHER LEGAL THEORY

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.

ASED ON CONTRA

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TORT,

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Product maintenance agreements and other customer assistance agreements are available for

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For any assistance, contact your nearest Hewlett-Packard Sales and Service Oce.

iii

Safety

The

of

the

CA

UTION

Symbols

following

symbols

WARNING

DANGER

safety

and

The

symbols

its

meaning

CAUTION

are

used

before

throughout

operating

this

manual. Familiarize yourself with each

this instrument.

sign denotes a hazard. It calls attention to a procedure which, if

not correctly performed or adhered to, could result in damage to or destruction

of the product or the user's work. Do not proceed beyond a

CAUTION

sign

until the indicated conditions are fully understood and met.

The

W

ARNING

which,

to

the

if

user

conditions

The

DANGER

sign

not

.

are

Do

denotes

correctly

not

proceed

fully

understood

a

hazard.

performed

beyond

or

and

It

calls attention to a procedure

adhered

a

WARNING

to

, could result in injury

sign until the indicated

met.

sign denotes an imminent hazard to people. It warns the

reader of a procedure which, if not correctly performed or adhered to,

could

sign

result

until

in injury or loss of life. Do not proceed beyond a

the indicated conditions are fully understood and met.

DANGER

iv

General

Safety

Considerations

WARNING

CA

UTION

Before

grounded

socket

Any

or

terminal

There

this

through

outlet

interruption

outside

the

can

are

many

instrument

provided

is switched on, make sure it has been properly

the

protective

with

of

the protective (grounding) conductor, inside

conductor

protective

earth

of

the

contact.

ac power cable to a

instrument, or disconnection of the protective earth

result

in personal injury.

points in the instrument which can, if contacted, cause

personal injury. Be extremely careful.

Any adjustments or service procedures that require operation of the

instrument with protective covers removed should be performed only by

trained service personnel.

Before this instrument is switched on, make sure its primary power circuitry

has been adapted to the voltage of the ac power source.

F

ailure

to

set

the

ac

the

instrument

power

when

the

ac

input

power

to

the correct voltage could cause damage to

cable

is

plugged

in.

v

In

This

manual

lightwave

Book

explains

signal

how

analyzers

to

.

operate

HP

70000

Series modular spectrum analyzer systems and

Spectrum

analyzer

and

lightwave

signal

analyzer

features

and

operating details are provided

in the following chapters.

Chapter

analyzer

rst

Chapter

4

MENU

.

time

5

softkey.

1

describes

The

chapter

.

2

illustrates

the

basic operation of a spectrum analyzer and lightwave signal

also provides details for an analyzer that is being operated for the

the organization of the softkeys that are accessed by pressing the

Chapter 3 provides a set of quick reference tables that list all softkeys by functional group.

The softkeys are listed alphabetically within each functional group.

Chapter 4 provides detailed descriptions of each softkey. The softkey descriptions are

organized alphabetically.

Troubleshooting

Chapter

information is provided in the following chapters.

5

provides modular system troubleshooting procedures.

6

provides descriptions for displayed system error messages.

Refer to the appendixes and glossary for the following information:

Appendix A describes spectrum analyzer and lightwave-signal-analyzer theory of

operation. The appendix also provides individual block diagrams for HP 70000 Series

modular spectrum analyzer system modules.

Appendix B describes inputs and outputs on individual HP 70000 Series modular spectrum

analyzer

Appendix

lightwave

Appendix

sequences

system

C

describes

signal

D

provides

.

modules

how

analyzers

reference

.

A

brief

to

description

care

for

ber-optic

of

each

connectors

module is also provided.

and cables that are used with

.

tables

for

ASCII

characters

, control codes, and escape

Glossary denes spectrum analyzer, lightwave-signal-analyzer, and modular-measurement

system terminology.

vi

Figures

1-1. Front-Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1-2. Instrument Keypad ............................ 1-5

1-3. How to Access Analyzer Functions ..................... 1-6

1-4. Displayed Measurement Results . . . . . . . . . . . . . . . . . . . . . . . 1-8

1-5. Calibration Signal .... ...... ...... ..... ...... .. 1-12

1-6. Common Measurement Indicators . . . . . . . . . . . . . . . . . . . . . . 1-14

1-7. Lightwave Signal Analyzer Measurement Indicators ............. 1-17

1-8. Auxiliary Measurement Indicators . . . . . . . . . . . . . . . . . . . . . . 1-19

1-9. Front-Panel Operation Indicators ...................... 1-21

1-10. Preset User Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

1-11. Transfer an Analyzer Softkey to User-Softkey Menu . . . . . . . . . . . . . 1-24

1-12.

2-1.

2-2.

2-3.

2-4.

2-5.

2-6.

2-7.

2-8.

2-9.

2-10.

2-11.

2-12.

Inserting

NNNNNNNNNNNNNN

Freq

N

Amptd

N

NNNNNNNNNNNNNNNN

Marker

NNNNNNNNNNNNNNNNNNNN

BW,Swp

NNNNNNNNNNNNNNNNNNNN

Traces

N

State

N

NNNNNNNNNNNNN

State

NNNNNNNNNNNNNNNNN

State

NNNNNNNNNNNNNNNNN

State

NNNNNNNNNNNNNNNNN

State

N

NNNNNNNNNN

Misc

NNNNNNNNNNNNNN

Misc

the

Softkey

N

NNNNNNN

Memory

Menu

Softkey

Menu

Card

Map

.

...... ...... ...... ..... 1-29

.

...... ...... ..... 2-2

.

....................... 2-3

Softkey Menu Map ........................ 2-4

Softkey Menu Map ........................ 2-5

N

NNNNNNN

Softkey

Menu

Map

.

................ 2-6

(1

of

5) ........ ...... ..... .. 2-7

Softkey Menu Map (2 of 5) .... ...... ...... ..... 2-8

Softkey Menu Map (3 of 5) .... ...... ...... ..... 2-9

Softkey Menu Map (4 of 5) .... ...... ...... ..... 2-10

Softkey

Menu

Map

(5

of

5) ........ ...... ..... .. 2-11

SoftkeyMenuMap(1of2)...................... 2-12

SoftkeyMenuMap(2of2)...................... 2-13

3-1. Marker-Peak Functions Analyze Trace Data ................. 3-25

4-1. Blanked Annotation ............................ 4-18

4-2. Catalog of User Memory with External Memory Selected . . . . . . . . . . . 4-34

4-3. Locating the Data Line

NNNNNNNNNNNNNNNNNNNN

4-4.

CONFIG

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

4-5.

EXTEND STATE

Displays System Conguration ................... 4-44

Lists Module-Level Parameters ...... ...... ... 4-63

4-6. Catalog of Internal Memory

and Character List . . . . . . . . . . . . . . . . . . 4-43

........................

4-7. Measurement Using Normal-Peak Detection ................. 4-105

4-8. Coupling and Accuracy Indicators . . . . . . . . . . . . . . . . . . . . . . 4-135

4-9. Measurement Using Sample-Peak Detection . ..... ...... ..... 4-139

NNNNNNNNNNNNNNNNN

4-10.

STATE

Displays Parameters Under Your Control . . . . . . . . . . . . . . . 4-156

4-11. Title-Line and Title-Entry Window Positions...... ...... ..... 4-164

5-1. Error Reporting . ...... ..... ...... ...... ...... 5-2

5-2. Error Report Screen ............................ 5-4

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

5-3.

MORE ERRORS

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

5-4.

ANALYZR TEST

Softkey . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Softkey ..... ..... ...... ...... .... 5-6

4-88

Contents-14

5-5. System Diagnostics Softkey Menu . . . . . . . . . . . . . . . . . . . . . . 5-15

A-1. Simplied Spectrum Analyzer Block Diagram ................ A-1

A-2. Simplied Lightwave Signal Analyzer Block Diagram . . . . . . . . . . . . . A-3

A-3. Modular Analyzer Conguration Block Diagram ............... A-4

A-4. Modular Source Conguration Block Diagram .. ...... ...... .. A-5

A-5. HP 70600A/70601A Preselector Block Diagram .... ...... ..... A-6

A-6. HP 70620A/B Preamplier/HP 70621A Preamplier Block Diagram ...... A-6

A-7. HP 70907A External Mixer Interface Module Block Diagram ......... A-6

A-8. HP 70904A RF Section Block Diagram . . . . . . . . . . . . . . . . . . . . A-7

A-9. HP 70905A/905B/906A/906B RF Section Block Diagram ........... A-7

A-10. HP 70908A RF Section Block Diagram . . . . . . . . . . . . . . . . . . . . A-7

A

-11.

HP

70810B

Lightwave

Section

Block

Diagram

.

............... A-8

A-12. Dual HP 70810B Lightwave Section Block Diagram ............. A-8

A-13. HP 70903A IF Section Block Diagram . . . . . . . . . . . . . . . . . . . . A-9

A-14. HP 70902A IF Section Block Diagram . . . . . . . . . . . . . . . . . . . . A-9

A-15. HP 70902A IF Section and HP 70903A IF Section Interconnection Block Diagram A-9

A-16. HP 70900B Local Oscillator Source Block Diagram .............. A-10

A

-17.

HP

70310A

Precision

Frequency Reference Block Diagram . . . . . . . . . . A-10

A-18. HP 70301A Microwave Tracking Generator Block Diagram .... ...... A-11

A-19. HP 70300A RF Tracking Generator Block Diagram . . . . . . . . . . . . . . A-11

A-20. HP 70000 RF and Microwave Source with an HP 70900B Local Oscillator Source

Conguration Block Diagram ...................... A-12

B-1.

HP

B-2.

B-3.

B-4.

B-5.

B-6.

B-7.

B-8.

B-9.

70300A

Generators

HP

70300A

Generators

HP

70310A

HP

70600A

HP

70600A

HP

70620A/B

HP

70810B

HP

70900B

HP

70900B

RF

Tracking

,

Front

RF

Tracking

,

Rear

Precision

Preselector

Preamplier

Lightwave

Generator

View

.

Generator

View

.

Frequency

and

.

and

.

Reference

HP

70301A

.

HP

70301A

.

,

Rear

Microwave

Tracking

...... ...... .... B-2

Microwave

Tracking

................ B-4

View

.

......... B-6

, Front View . . . . . . . . . . . . . . . . . . . . . B-8

, Rear View ..................... B-9

and HP 70621A Preamplier Front View . . . . . . B-11

Section Front and Rear View .......... ... B-13

Local Oscillator Source, Front View ............... B-15

local oscillator source, Rear View .... ...... ...... B-16

B-10. HP 70902A IF Section, Front View .. ...... ...... ...... . B-17

B-11. HP 70902A IF Section, Rear View . . . . . . . . . . . . . . . . . . . . . . B-18

B-12. HP 70903A IF Section, Front View .. ...... ...... ...... . B-19

B-13. HP 70903A IF section, Rear View . . . . . . . . . . . . . . . . . . . . . . B-20

B-14. HP 70904A RF section, Front View . . . . . . . . . . . . . . . . . . . . . B-21

B-15. HP 70904A RF section, Rear View ..................... B-22

B-16. HP 70905A RF section and HP 70905B RF sections, Front View . . . . . . . . B-23

B-17. HP 70905A RF section and HP 70905B RF

B-18. HP 70906A RF section, Front View . . . . . . . . . . . . . . . . . . . . .

B-19. HP 70906A RF section, Rear View

B-20. HP 70907A/B external mixer interface moduleU;, Front View

section, Rear View ........ B-24

B-25

..................... B-26

........ B-27

B-21. HP 70907A/B external mixer interface moduleU;, Rear View . . . . . . . . . B-29

B-22. HP 70908A RF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . B-30

B-23. HP 70909A RF Section Front Panel ..................... B-31

B-24. HP 70909A RF Section Rear Panel .. ...... ...... ...... . B-32

B-25. HP 70910A RF Section Front Panel ..................... B-33

B-26. HP 70910A RF Section Rear Panel .. ...... ...... ...... . B-34

Contents-15

Tables

1-1. Softkey Settings when Executing Calibration Procedure ........... 1-9

2-1. Function Categories Accessed by Top-Level Keys . . . . . . . . . . . . . . . 2-1

3-1. SoftKey Quick Reference, Organized by Function ...... ...... .. 3-2

4-1. Signal Path versus Input Attenuation .................... 4-19

4-2. Catalog of User Memory ...... ...... ...... ...... .. 4-35

4-3. External Mixing Bands and Associated Mixing Harmonics . . . . . . . . . . . 4-69

4-14. Frequency Ranges and Corresponding Harmonic Numbers .......... 4-77

4-15. Frequency Ranges and Corresponding Harmonic Numbers .......... 4-116

4-13. Preselector DAC Frequency Bands .... ...... ...... ..... 4-118

B-1. Preampliers and Their Frequency Ranges ................. B-10

D-1. ASCII Characters (codes 0 through 127) and HP 70004A Color Display Characters D-2

D-2.

D-3.

D-4.

Control

Escape

Codes

Characters

.

....................... D-3

that Control the Pen, Clear Text, and Scroll Text...... D-3

Characters that Control Enhancements ............... D-4

Contents-16

Overview

Notation Conventions Used in this Manual

The display presents seven top-level softkeys on the left side of the display that appear when

4

5

MENU

is pressed. Pressing one of the top-level softkeys on the left, displays softkeys on

the right side of the display. Each softkey that is displayed on the right either performs an

analyzer function directly or accesses another menu of related softkeys. The name of the

function appears on the display next to the activating softkey.

This manual uses the following conventions:

4

KEY

5

A

key name that looks like this represents a key that is physically located on the

instrument and is commonly referred to as a front panel key.

N

NNNNNNNNNNNNNNNNN

softkey

Text that looks like this (with all lowercase letters) represents a softkey that

accesses another menu of related softkeys.

NNNNNNNNNNNNNNNNNNNNNNN

SOFTKEY

T

ext

that

executes

looks

its

function.

like

this

(with

all

uppercase

letters)

represents

a

softkey that

1

Display

Text

When

information

generic

term,

T

ext

that

applies

\analyzer"

looks

is

to

used

like

this

represents

both

a

spectrum

throughout this manual.

messages

analyzer

and

that

a

lightwave

appear

on

signal

a

display.

analyzer

, the

Overview 1-1

Front-P

anel

Controls

Front-panel

which

The

facilitate

In

addition,

executes

If the analyzer is being controlled by a computer, press the

controls

are

accessed

5

4

MENU

4

DISPLAY

5

4

USER

analyzer

analyzers

commonly

key

5

key

are

with

accesses

key

accesses

measurements

installed in an HP 70004A color display have an instrument keypad that

used

summarized

three

all

analyzer

all

a

set of analyzer functions, custom-made or factory-preset, which

in

Figure

front

panel

keys:

functions

display functions.

1-1

.

Functions are organized into three groups

.

analyzer functions.

4

5

(or

4

5

LCL

LOCAL

) key to regain front

panel control.

Analyzer Functions

Functions are activated by pressing the keys around the perimeter of the display screen or

on the instrument keypad. The functions are organized in levels, called softkey menus. The

4

5

,

MENU

are

accessed

softkeys

displayed

of

the

\pages"

5

4

USER

by

.

Press

level

softkeys

of

information,

, and

4

DISPLA

pressing

previous-menu

of

softkeys

display

information

press

5

keys access the top-level menus of softkeys. Lower-level softkeys

Y

softkeys

and

.

The

N

MORE

having

5

4

6

N

NNNNNNN

return

key

lower-case

keys

can

be

labels

N

used

N

.

N

NNNNNNNNNNNNNNNNNN

menu

to recall the last ten softkey entries.Some

that exceeds the space on the display.To view additional

.

Press

or

5

4

6

NNNNNNNNNNNNNN

MORE

,

to

view

access

the

previously

additional

Some softkeys switch between two states, such as internal or external (INT/EXT), automatic or

manual (AutoMan), and on or o (On O). An underscore on the softkey label indicates which

softkeys and operating states are selected.

Active Function and Data Entry

Once a key is pressed, its function becomes active, meaning its value can be changed. The

active function readout on the left side of the screen displays the active function. In addition,

the key for the active function is highlighted in inverse video or underscored. (The label of

immediately executed functions is highlighted momentarily.)

Use the numeric keypad, knob, and

485or495

step keys to change the value of the active

function. If the function requires an entry for units, such as hertz or volts, unit softkeys

appear

softkey to complete the data entry

Press

after a number is entered with the numeric keypad or knob. Press the desired units

.

5

4

HOLD

to blank the active function readout, and disable the knob

, numeric keypad, and

step keys until the next key is pressed.

1-2 Overview

Front-Panel Controls

Instrument preset

Local

Softkeys

Plot

Print

Figure

4

INSTR PRESET

settings. Appendix A lists preset settings

some models

4

5

LCL

1-1.

Front-Panel Controls

5

changes all instrument settings to their preset

. (This key is called

5

4

I-P

.)

(moving counterclockwise) reinstates front panel operation if

the instrument has been under remote control. (This key is called

4

5

LOCAL

on some models.)

execute instrument or display functions, depending on whether

4

DISPLAY

5,4

MENU

5

,or

4

USER

5

was selected. The softkeys are located

around the perimeter of the display screen.

4

5

plots the analyzer display if a plotter is connected to the

PLOT

display HP-IB port.

4

5

PRINT

prints the analyzer display on a graphics printer if one is

connected to the display HP-IB port.

Overview 1-3

on

Display

functions

4

DISPLA

5

accesses all display functions. (This key is called

Y

some models.)

4

DSP

5

on

User functions

Instrument functions

Instrument

Select

keypad

instrument

Hold

Knob

Step down

4

5

accesses functions that facilitate custom measurement

USER

procedures. (This key is called

4

5

MENU

accesses all analyzer functions. If other instruments,such

4

5

on some models.)

USR

as a digitizer, are added to the modular analyzer as a separate

instrument,

depending on the selection made by

4

5

MENU

4

5

MNU

executes

operation

selects

example

press

of

not on your instrument, press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

of

4

HOLD

panel

softkey

provides

4

MENU

does

not

on

some

commonly

of

corresponding

instrument

,

if

a

system

4

INSTR

blanks

knob

,

numeric

is

pressed.

the

data

5

accesses the functions of each instrument,

4

INSTR

access

models

the

display

functions

.)

used

analyzer functions and duplicates

5

4

MENU

that

is controlled by the front panel keys.For

softkeys

N

5

(or

.

(This

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT INSTR

contains a voltmeter and an analyzer, each

5

activates

the

instruments

4

DISPLAY

individually

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

5

,

NEXT INSTR

selects another instrument.

active-function

keypad,

entry

,

moves

the

and

marker

readout

step

and

disables

keys

until another function

, or moves the cursor through

key

is called

.If

4

. Each press

the

INSTR

front

the character set.

495

decreases the value of the active function or moves the cursor in

the data line.

).

5

is

Step up

Return

Numeric keypad

P

ower

HP-HIL

Memory card

485

increases the value of the active function or moves the cursor in

the data line.

465

views previously displayed softkeys or moves the cursor to the

beginning of the data line.

provides data entry.

controls

graphics

the

line

display

power

or

HP

to the analyzer. If an HP 70206A system

70004A

color

display is added to the modular

analyzer system, the power to the display must also be turned on.

The Hewlett-Packard Human-Interface-Link (HP-HIL) keyboard

can be connected to the HP-HIL connector at the front panel of

the HP 70004A color display

initiated at the keyboard instead of by the front panel keys

. Many front panel functions can be

.

provides storage space and accesses routines and instrument

personalities. These are called down-loadable programs (DLP

s).

1-4 Overview

A

ccessing

Use

the

instrument

commonly

that

surround

graphics

used

display

Analyzer

keypad

analyzer

the

display

or

the

HP

Functions

for

fast

functions

screen.

70206A

operation.

,

duplicating

The

instrument

system

with

The

the

graphics

the Instrument Keypad

instrument keypad provides easy access to

5

operation

keypad

of corresponding

4

MENU

is not available on the HP 70205A

softkeys

display.

Figure

1-2.

Instrument

K

eypad

Overview 1-5

A

ccessing

Analyzer

Functions

with

the

4

MENU

5

K

ey

Use the

4

MENU

5

softkeys to access all analyzer functions. The functions are divided into seven

categories which are accessed with seven keys at the left side of the display screen. The

underscore indicates which group of functions is selected.

After selecting a function category, press any softkey at the right side of the display screen to

execute an analyzer function.

The

softkey

pressing

4

MENU

maps

5

.

Figure

in

Chapter 2 illustrate the location of all the softkeys that are accessed by

(Refer

to

1-3.

How

to

A

ccess

Analyzer

Functions

Chapter 4 for a description of each softkey.)

1-6 Overview

Preparing

The

analyzer

Spectrum

connected,

step

7.

The

following

the

procedure

1.

Apply

the

requires

Analyzer

most

analyzer

procedure

to

activate

power

to

Analyzer

proper

Installation

models

provides

for

Measurements

connection

and

are

of

cables

V

erication

ready

for

,

as shown in the

Manual

use

.

Once the system cables are

after they have been calibrated, continue at

HP 70000 Modular

some preliminary checks for nonstandard analyzers.Follow

the analyzer, and check its hardware and error-correction status.

all mainframes and displays in the system by setting all LINE switches on

(1).

2. Wait about 5 seconds while the analyzer performs a self-check, then press the

instrument-preset key,

4

INSTR

PRESET

5or4

I-P

5

.

3. The analyzer is operating when a trace sweeps across the display. The MEASURE indicator

LED illuminates as the sweep progresses. As an additional indicator, the green, active

5

(ACT) status indicators are lit on the analyzer modules, except when the

4

DISPLA

key has

Y

been pressed. Also, if your analyzer has more than one signal path, for example, more than

one

RF input port or more than one IF module, the green status indicator may be o on

modules

4.

If

your analyzer is sweeping, skip to step 5.

5.

If

the

analyzer

not

passing or processing the input signal.

analyzer

is

not

does not have an

activated

4

INSTR

when

power is applied, press

5

key, press

4

DISPLA

5

, then press

Y

4

INSTR

N

HP

5

,

N

NNNNNNNNNNNNNNNNNNNNNNNNNNN

N

NNNNNNNNNNNNNNNNNN

70900B

.

(If

your

repeatedly

until the analyzer is activated.) If the analyzer is still not activated when power is applied,

inspect the rear panel HP-MSIB interconnections for tightness and then cycle power.

N

If you cannot activate the analyzer, press

conguration

address

map

of

by

your

system.

turning

the

Move

front

the

panel

4

DISPLA

highlighted

knob

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

5

,

address map

Y

rectangle

The

local

along

oscillator

to inspect the

the

bottom

module

must be in the

row

of

the

bottom row of the map. If it is not, change the HP-MSIB row-address switch to row-address

0. See the

instructions

HP 70000 Modular Spectrum Analyzer Installation and Verication Manual

.

for

6.

Inspect

indicator is lit, press

the error indication. Press

other error occurs, refer to the

Verication Manual

the

status

indicators on the front panels of the analyzer modules. If an error (ERR)

4

DISPLAY

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

5

,

REPORT ERRORS

4

5or4

MENU

USER

to learn what caused the error and clear

5

to reactivate the analyzer display. If any

HP 70000 Modular Spectrum Analyzer Installation and

for installation, verication, and troubleshooting instructions. Refer to

Chapter 6 for a description of system error messages.

Note

For an analyzer with an external interface module for input, such as an

HP 70907A external mixer interface module

frequency range of your external mixer

, connect any signal within the

, and tune to that signal.

7. Verify that the analyzer can display signals sent to the RF INPUT port. Connect the

CALIBRATOR signal to the input port, then press the following keys.

Press

4

INSTR PRESET

5

(or

4

5

)

I-P

NNNNNNNNNNNNNN

Freq

NNNNNNNNNNNNNN

SPAN

NNNNNNNNNNNNNNNNNNNN

CENTER

1

NNNNNNNNNNN

MHz

300

NNNNNNNNNNN

MHz

Overview 1-7

8.

If

your display resembles Figure 1-4, skip to step 7.

Figure 1-4. Displayed Measurement Results

If

the

input

analyzer

port

you

does

are

not

using

display

may

not

the

input

be

active.Follow this procedure to activate the input

port:

N

a.

b.

NNNNNNNNNNNNNNNN

Press

State

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

select input

signal and has more than one input port, the

c.

Press the key corresponding to the desired input.

If

the calibrator signal still is not present on the analyzer screen, see that the interconnect

cables

Modular Spectrum Analyzer Installation and Verication Manual

are properly installed and are tightly secured. If necessary, refer to the

for complete installation

HP 70000

instructions.

1-8 Overview

9.

UNCOR

the

execute

appears

built-in

it

at

the upper right of the graticule if your analyzer needs calibrating with

correction

only

when the analyzer requires calibration:

routine. Since the calibration routine lasts about three minutes,

At the beginning of each day.

After extreme temperature changes.

After selecting a new input port.

After moving the analyzer.

To execute the routine, follow this three-minute procedure:

Connect the CALIBRATOR signal to the input port, unless measuring signals at the input

port on an external mixer interface module (for example, HP 70907A external mixer

interface module).

Press

If

the

calibration procedure fails, check the settings of the

following

Table 1-1. Softkey Settings when Executing Calibration Procedure

Key Keystrokes

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FREQ

FOR

CAL

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

POWER FOR CAL

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CAL SRC INT EXT

4

INSTR

NNNNNNNNNNNNNNNNN

Amptd

NNNNNNNNNNNNNNNNNNNNNNN

CAL ALL

table

.

that Access Key

N

NNNNNNNNNNN

Amptd

N

MORE

NNNNNNNNNNNNNNNNNNNNNNNNNN

cal menu

NNNNNNNNNNNNNNNNN

Amptd

NNNNNNNNNNNNNN

MORE

N

NNNNNNNNNNNNNNNNNNNNN

cal

menu

N

NNNNNNNNNNNNNN

Amptd

NNNNNNNNNNNNNN

MORE

NNNNNNNNNNNNNNNNNNNNNNNNNN

cal menu

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

cal enable

5

(or

4

5

)

I-P

5

4

MENU

Key Setting when

Using Input Port on

External Mixer Interface Module

321.4

MHz

0

35 dBm

softkeys

in the

Key Setting When

Using Standard RF

Input Ports

300

MHz

0

10 dBm

INT EXT

Verify that the

UNCOR

indicator is not present.

10. The analyzer is now ready for operation. To meet specications, apply power for one hour

before calibrating.

Overview 1-9

Electrical

Cable

Connections

Before

good

CAUTION

making

mechanical

any

measurement,

condition,

and

be

sure

properly

that

all

tightened.

electrical cables and connectors are clean, in

To assure proper electrical connection and no connector damage, all APC 3.5

and SMA connectors must be torqued ve to eight inch-pounds. Do not exceed

eight inch-pounds.

Fiber-Optic Cable Connections

WARNING

To avoid the possibility of damage to your eyes, verify a disabled output

at the light source before any cleaning, connecting, or disconnecting of

optical system components.

When

making

measurements

with a lightwave signal analyzer, it is important that all ber-optic

connections be made carefully. Both the front panel tting and the source cable have a

protruding ber-optic tip. Lightwave measurements demand precision mating of awless ber

ends.

The

CA

UTION

following

light

measurements

Exposed

touch

installing

precautions

ber-optic

an

unprotected

a

connector

.

help

prevent

tips

are

easily

tip

.

This precaution is particularly important when

interface

ber

damage

and

help

scratched. Do not allow any object to

and

when making and breaking connections.

assure

accurate

Never insert any cleaning tool into an optical connector ferrule; this may

cause damage that can aect the optical system.

Do not touch an exposed ber-optic tip. An oily ngerprint requires cleaning

with cleaning solution.

Before any mating of ber-optic tips, clean the tips with special tape to

assure no dust or other particles remain.

In addition to tape cleaning, clean more thoroughly with cleaning solution

as routine maintenance or if measurements reveal a slightly lower than

expected power level or an increase in reection intensity noise.

Always replace the protector caps on any exposed ber-optic tip.

Cleaning Optical Connectors

The Hewlett-Packard cleaning kit, HP 15475A, includes recommended cleaning materials and

instructions for optical connectors

.F

or optical connector cleaning information, refer to the kit

instructions or \Cleaning Dry Connectors" in Appendix C.

1-10 Overview

Making

a

Measurement

Instrument

Execute

into

a

known

analyzer

A

spectrum

normal

available

A

lightwave signal analyzer is also preset to measure the full frequency range with trace A,

using

normal peak detection, and the widest resolution bandwidth available. In addition,

an

optical signal path is selected, 5 dB of optical attenuation is set, and the power meter is

Preset

the

instrument-preset

state

.

Pressing

and

lightwave

analyzer

peak

detection, 10 dB of input attenuation, and the widest resolution bandwidth

.

function

at

the instrument-preset key,

signal

is

analyzer

preset

to

dierently

measure the full frequency range with trace A, using

the

beginning of measurements to place the analyzer

5

,

4

INSTR PRESET

congures

a

spectrum

.

activated.

Refer to the index for a complete listing of the spectrum analyzer and lightwave signal analyzer

preset settings.

On some analyzer models, the instrument-preset key is called

4

5

I-P

instead of

4

INSTR PRESET

5

.

The operation of the two keys is identical.

Measurement Procedure

Measurements involve tuning the instrument to place a signal on the screen, then measuring

the frequency and amplitude of the signal. Measurements can be made with either trace A, B,

or C.

An

input

signal

can

be

measured

using

the

following

four

steps:

1.

Set

the

span.

2.

Set

the

center

frequency

.

3. Set the amplitude.

4.

A

ctivate

On

all

of

the

used

interchangeably

Example 1-1.

the marker.

systems

, measurements can be made using the softkeys located on the left and right side

display. On models having an HP 70004A color display, the instrument keypad can be

with the softkeys.

Measure the calibrator signal.

1. Turn on the spectrum analyzer, then connect the CALIBRATOR output to the RF INPUT.

Note

To connect the calibrator signal on a lightwave signal analyzer:

Turn on the analyzer, then connect the CALIBRATOR output to the RF

INPUT on the HP 70810B lightwave section.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

select input

RF INPUT) by pressing the

and select the RF signal bypass path (lightwave section

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

IN 2W 70810B

softkey.

Continue at step 2.

2. Set the frequency span.

NNNNNNNNNNNNNN

Press

Freq

Note that the

, then press either the

NNNNNNNNNNNNNN

SPAN

softkey is highlighted, and also that

NNNNNNNNNNNNNN

SPAN

softkey or

4

SPAN

5

on the instrument keypad.

SPAN

is now displayed in the

Overview 1-11

active-function readout on the left side of the display.To reduce the frequency span to

1 MHz, press

415

and

NNNNNNNNNNN

MHz

.

The step keys,

485

and

495

, and front panel knob also select function values.

3. Set the center frequency.

NNNNNNNNNNNNNNNNNNNN

Press

CENTER

center-frequency

set

the

center

(or press

function,

frequency

4

CENTER

5

on the instrument keypad). This activates the

indicated by

to

300 MHz, press

CENTER

5

,

4

3

appearing in the active-function readout. To

5

,

4

0

,

and

N

MHz

N

NNNN

.

4. Set the amplitude.

Place the signal peak at the reference level (top graticule line) for good measurement

accuracy

4

REFERENCE

.To adjust the signal peak to the010 dBm reference level, press either

5

LEVEL

on the instrument keypad and then press

405,415,405

, and

NNNNNNNNNNN

dBm

N

NNNNNNNNNNNNNN

Amptd

.

The step keys or front panel knob can also be used to adjust the reference level. Using the

knob

is

the

easiest

way

to

ne-tune the signal peak to the reference level.

5. Activate the marker.

N

NNNNNNNNNNNNNNNNNNN

To place a marker on the highest peak contained in the trace, press either the

softkey

and

or

the

amplitude

right-hand

4

NORMAL

corner

of

5

of

on

the

instrument

signal

display

peak

.

keypad.

in

the

The

marker

active-function

displays

readout

both

area

Marker

the

frequency

and

in the upper

or

Figure 1-5. Calibration Signal

Use Coupled Functions to Maintain Accuracy Easily

To simplify measurements, some of the analyzer functions are coupled. When the value of a

function changes, it induces a change in any function coupled to it. Coupled functions have

an automatic and manual setting, which appears as

Auto

is underscored.

When functions are uncoupled,

Man

is underscored and an asterisk (*) appears next to the

AutoMan

on the key label. When coupled,

function annotation at the display-screen perimeter. Refer to Figure 1-6 for the location of

each \uncoupled function" asterisk.

To maintain amplitude and frequency accuracy, the resolution bandwidth, video-bandwidth,

and span functions are coupled to the sweep-time function. The resolution bandwidth lter

is the intermediate frequency (IF) lter. The video-bandwidth lter is a post-detection lter

1-12 Overview

that reduces the amplitude of high-frequency signals (noise). When coupled, the sweep time

changes as the resolution or video bandwidth, or span changes. When uncoupled, the

UNCAL

indicator appears at the right side of the graticule when accuracy is aected by the new

settings.

Limiting the signal level at the mixer input controls accuracy by avoiding gain compression. To

limit signal levels at the input mixer, the input attenuation is coupled to the reference level.

When coupled, the attenuation increases as the reference level increases. The limit can be

changed to increase dynamic range.

The video bandwidth is coupled to the resolution bandwidth, and the resolution bandwidth is

also coupled to the span. Set

the

coupling.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VID BW AutoMan

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

and

RES BW AutoMan

to automatic to establish

Resolving Closely Spaced Signals

Some measurements require adjustment of the resolution bandwidth (or IF) lter. The spectrum

analyzer traces the shape of its IF lter as it tunes past a signal. Thus, if two equal-amplitude

signals are close enough in frequency, the lter shapes can fall on top of one another and

appear as a single response. If two signals are not equal in amplitude but are still close

together

T

o resolve two signals of equal amplitude, the resolution bandwidth must be less than or equal

,

the

smaller

signal

can

be

hidden

under

the response of the larger one.

to the frequency separation of the two signals.For example, to resolve two signals of equal

amplitude with a frequency separation of 1 kHz, a resolution bandwidth of 1 kHz or less should

be used. Phase noise, seen along the lower skirt of the displayed response, can also aect

resolution.

Viewing Low-Level Signals

Low-level

accessed by

Decrease

signals

N

NNNNNNNNNNNNNNNNNNNNN

BW, Swp

the

hidden

.

resolution

by

the

analyzer

bandwidth

noise

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RES

BW

(

oor

can

AutoMan

be viewed using several functions,all

).

The

noise

oor drops 10 dB as

the resolution bandwidth is narrowed by a factor of 10. However, to maintain amplitude

accuracy, the sweep time should be set to automatic to activate coupling.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Decrease the video bandwidth (

the

sweep time should be set to automatic to activate coupling.

VID BW AutoMan

). Again, to maintain amplitude accuracy,

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Use video averaging (

VID AVG On Off

). The video-averaging function averages the

amplitude values contained in a sweep with the values obtained in the previous sweep. Since

the video-averaging function processes stored trace data, amplitude accuracy is not aected

by the sweep-time setting.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Reduce the input attenuation (

ATTEN AutoMan

). Reduce the input attenuation with

caution. Signals that are not displayed in narrow spans might still be present at the input.

Reducing the input attenuation increases the signal level to the spectrum analyzer internal

components, which are damaged permanently by 30 dBm levels or greater.For this reason,

0 dB input attenuation can be activated with the numeric keypad only.

Overview 1-13

Interpreting

The

annotation

on

Measurement

the

display

describes

Results

the

progress

and parameters of your measurements.

Figure

analyzer

Figure

A

description

1-6

1-7

.

1-8

describes

of

each

the

annotation

additional

auxiliary

that

display

measurement indicators.

annotation is listed alphabetically, following the related illustration.

Common Measurement Indicators

is

displayed

annotation

during most measurement procedures.

that

is

unique to a lightwave signal

Active function

readout

Amplitude scale

1-14 Overview

Figure 1-6. Common Measurement Indicators

indicates the currently active function.

species the amplitude value spanning of each major vertical

graticule division.

Attenuation

species attenuation at the spectrum analyzer input. For a lightwave

signal analyzer, the annotation species the optical attenuation, in

optical power units, at the input of the lightwave section. Use the

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ATTEN

AutoMan

softkey

to change the attenuator setting.

Attenuator uncoupled

Center frequency

Marker

Marker amplitude

Marker frequency

Marker number

Reference

Resolution

level

bandwidth

uncoupled

Span

indicates attenuator is not coupled to reference level. When coupled,

the attenuator changes as the reference level changes to limit signal

levels to the mixer, as specied by

attenuated

damage

to

avoid

N

ATTEN

.

Set

amplitude

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AutoMan

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MAX MXR LEVEL

. Signals are

inaccuracies and spectrum analyzer

to

automatic

to

recouple

.

indicates frequency at the center of the graticule (or active trace).

measures a point on the active trace.

describes the absolute or relative position of the active marker in

amplitude terms.

describes the absolute or relative position of the active marker in

terms of frequency, time, or period (1/frequency).

displays the number of the active marker.

indicates

Measurements

N

RES

indicates

the

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BW

AutoMan

the

absolute

3

dB

bandwidth

resolution

are

inaccurate

to

automatic

frequency

value

of

bandwidth

spanning

the

of

the

when

to

top

graticule

resolution

is

not

UNCAL

recouple

the

ten

line

.

lters

.

coupled

to

span.

is displayed. Set

.

major

horizontal

divisions

.

The frequency range of one major graticule division equals span/10.

Start frequency

Stop

frequency

Sweep

time

Sweep time uncoupled

Uncalibrated

Uncorrected

Underscore

Video average counter

indicates frequency at left graticule edge (or beginning of active

trace).

indicates

active

indicates

spanning

the

trace).

the

frequency

time

horizontal

at the right graticule edge (or end of the

duration of one complete sweep, or the time

scale

when frequency span equals zero.

indicates the sweep time is not coupled to the resolution or video

bandwidth, or span. When coupled, the sweep time changes to yield

optimum accuracy as the resolution or video bandwidth, or span

changes. Measurements are inaccurate when

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SWPTIME AutoMan

to automatic to recouple.

UNCAL

is displayed. Set

indicates that the displayed amplitude of signal responses are

inaccurate. This occurs when certain analyzer settings are

decoupled. To recouple, adjust the settings for resolution bandwidth,

video bandwidth, and sweep time to automatic (A

uto).

appears when the analyzer is not calibrated with its built-in

correction factors.If

UNCOR

is displayed, execute the calibration

routines described in Chapter 2.

indicates the selected state of multi-state functions.

indicates the number of trace values that have been video averaged.

Video bandwidth

indicates the 3 dB bandwidth of the post-detection video lters.

Overview 1-15

Video

uncoupled

bandwidth

indicates

bandwidth. When coupled, the video bandwidth changes as the

resolution bandwidth changes to maintain the ratio determined by

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VBW/RBW RATIO

the video bandwidth is not coupled to the resolution

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VID BW AutoMan

. Set

to automatic to recouple.

1-16 Overview

Lightwave Signal Analyzer Measurement Indicators

Figure 1-7 illustrates additional annotation that is unique to a lightwave signal analyzer.A

description of each annotation is arranged alphabetically, following the gure. Figure 1-6 and

Figure 1-8 illustrate common analyzer annotation.

Figure 1-7. Lightwave Signal Analyzer Measurement Indicators

Overview 1-17

Manual

indicator

responsivity

indicates

that manual mode for the responsivity function has been

selected. The manual responsivity indicator is an asterisk (*) that is

displayed to the left of the trace annotation.

Power bar

Power meter

annotation

Power meter

readout

P

ower

meter

zeroing indicator

Trace

User

annotation

power

indicator

provides a graphical display of the average optical power measured

by the power meter.

indicates whether the power meter readout is annotated in optical

or electrical units. Either

OPTorELEC

is displayed for the respective

unit annotation. The units annotation of the power meter is not

coupled to the lightwave trace annotation.

displays

optical

softkeys

the

dBm,

to

current

electrical

change

average power meter readout annotated in

dBm,

or watts units. Use the power meter

the

display annotation.

is displayed while osets in the power meter are being zeroed either

in automatic or manual mode. The indicator is an asterisk (*) that

is displayed to the right of the power meter annotation. Press the

NNNNNNNNNNNNNN

ZERO

softkey to zero the power meter manually.

indicates

electrical

respective

trace

indicates that an optical power oset has been entered using the

N

USR

displayed

whether

units

unit

is

not

coupled

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PWR

On

to

the

.

Either

annotation.

to

Off

softkey

left

of

lightwave

LW

OPT

the

.

the

trace

or

LW

ELEC

The

units

power

The

meter

indicator

power meter readout.

is

annotated

is

displayed

annotation

of

in

the

optical

for the

annotation.

is an asterisk (*) that is

or

lightwave

1-18 Overview

Auxiliary Measurement Indicators

Figure 1-8. Auxiliary Measurement Indicators

Overview 1-19

Alternate

level

gain compression

if

present, the gain-compression error of signal peaks below

the dashed line does not exceed the gain-compression error

of the mixer-input-level setting (usually about 1 dB for mixer

levels of05 dBm).

Alternate reference level

Amplitude oset

Box

Character set

Data line

Detection mode

Error message

Frequency oset

Function in progress

Message area

Over sweep

when present, supersedes the top graticule line.

indicates the amount of oset added to all amplitude

annotation.

selects the character for transfer to the title line or the data

line. Also marks character for modication in the data line.

provides character entry into the title line or the data line.

is a scratch pad for composing or displaying custom

functions. Also shows data entry for

functions

.

NNNNNNNNNNNNNNNNN

TITLE

and

NNNNNNNNNNNNNNNNNNNNNNN

COMMAND

lights when measurements are made with optional detection

modes.

explains the type of error sensed. Refer to Chapter 6 for a

description

of

system

error

messages

.

indicates the amount of oset added to frequency

annotation.

lights while some functions execute, such as video averaging.

Also lights when some functions change while the sweep is

progressing.

describes the progress of some functions.

provides faster sweep times, when autocoupled, by allowing

an additional 2% of frequency error and 2 dB of amplitude

error before displaying the uncalibrated indicator (UNCAL).

Space

Title

line

1-20 Overview

enters

a

space

into

the

title line or data line.

contains messages composed with

NNNNNNNNNNNNNNNNN

TITLE

.

Interpreting

The

front

panel

indicators

and

provide

warnings

Front-P

monitor

for

hardware

anel

Indicators

the

state

of

failures

and

the analyzer during remote and local control,

operation

errors.

Figure 1-9. Front-Panel Operation Indicators

Overview 1-21

HP-MSIB

if the HP-MSIB indicator (called I/O CHECK on some models)

turns on, inspect all module interconnections for tightness and

then cycle power. If the HP-MSIB indicator remains on, consult

the

HP 70000 Modular Spectrum Analyzer Installation and

Verication Manual

.

Status

HP-IB

Instrument

state

Denotes the active or error state. The active (ACT) indicator lights

whenever analyzer functions are accessed by pressing the

or

4

5

MENU

key. The error (ERR) indicator lights when the analyzer

4

USER

5

has sensed an error in that module.To learn the nature of the

error and its source, press

4

DISPLAY

5,4

REPORT ERRORS

5

, which lists

the error code and the module where the error originated. (See

Appendix C for error code denitions.) Press

4

MENU

5

to return to

the normal instrument display.

The display also has active and error indicators,anAandEthat

appear in the upper-left corner (or lower-right corner on some

models) of the display. The active indicator lights when the

4

DISPLAY

sensed

describes

is

are

indicator

5

key is pressed. The error indicator lights when an error is

by the display module.

the

remote-control status of the analyzer. When power

applied,

o.

the

analyzer is in local control and the indicators

If the analyzer is addressed by a computer, the remote

lights

and the listen, talk, or service-request indicator

lights depending on the computer instructions. The listen indicator

lights when the analyzer has received instructions or data from the

computer. The talk indicator lights when the analyzer has sent

data or instructions to the computer. The service-request indicator

lights when the analyzer has requested computer service.

describes

lights

during

indicator

the

as

the

retrace

lights

instrument

analyzer

and

between

whenever

operating

sweeps

the

state

each

frequency

analyzer

.

The

bands

is

testing

MEASURE

band

and

.

The

SELF

itself.

indicator

blanks

TEST

The

LOOP

UNLOCK indicators usually light when a hardware failure occurs.

If any of these indicators are lit, check all module interconnections

for tightness, then cycle power. If the indicators remains lit, refer

to the troubleshooting instructions in the

Spectrum Analyzer Installation and Verication Manual

HP 70000 Modular

.

1-22 Overview

Using

The

user

the

keys

access

measurements. With the help of

4

USER

5

K

a

special

ey

set

of

analyzer functions that are designed to facilitate

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEFINE USR KEY

, you can build a set of user softkeys of

your design. Use the user softkeys when your measurements require repeated use of the same

functions. The contents of the user-key menu do not change when the analyzer is preset with

the

4

INSTR PRESET

5

key or when power is cycled.

Presetting the User Softkeys

A preset group of softkeys facilitate the construction of menus for special measurements.To

view the factory-preset user softkeys, press

in Figure 1-10, your menu of user softkeys has been modied.

4

5

. If the softkeys do not match those shown

USER

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESET USER

eliminates

unprotected custom softkeys and reinstates the preset user softkeys (see following note).

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CA

UTION

Pressing

instrument contains diagnostics or personalities (such as scalar measurement

softkeys), these softkeys are erased when

PRESET USER

removes unprotected custom softkeys.Ifyour

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESET USER

is pressed.

Example

Press

1-2.

Preset

user-key

4

MENU

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

key control

5

menu.

N

NNNNNNNN

Misc

N

NNNNNNNN

MORE

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESET USER

Figure 1-10. Preset User Softkeys

Creating a Custom Menu of User Softkeys

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEFINE USR KEY

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

limit lines

Example 1-3.

draws functions from the

4

MENU

5

softkeys.For example,addthe

softkey to the user menu as follows:

Transfer an analyzer softkey to the user-key menu.

NNNNNNNNNNNNNN

Press

4

MENU

5

Misc

Overview 1-23

N

NNNNNNNN

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

key

control

N

MORE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEFINE USR KEY

softkeys

NNNNNNNNNNNNNN

Misc

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

limit

4

USER

.)

NNNNNNNNNNNNNN

MORE

lines

5

(Accesses the user menu.)

(Species the

(Begins the transfer process and displays the

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

limit

lines

softkey for transfer.)

4

MENU

5

Press any softkey to indicate a spot for the

Figure 1-11 illustrates the location of the

limit lines

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

limit lines

softkey.

softkey in the

user-softkey menu.

Figure 1-11. Transfer an Analyzer Softkey to User-Softkey Menu

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

To interrupt the transfer process, press 0 on the numeric keypad.

DEFINE USR KEY

may

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

also be used to remove softkeys individually from the user menu. Softkeys are removed by

replacing them with blank softkeys as shown in example 1-4.

1-24 Overview

Example 1-4.

Remove a user softkey.

Press

4

USER

5

Any blank softkey

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEFINE USR KEY

Press the softkey you wish to blank.

Incorporating User-Dened Functions into the User-Softkey Menu

The menu of user softkeys can be congured with user-dened functions that have been stored

in internal memory. User-dened functions are created and stored most eciently with a

computer program sent to the analyzer via HP-IB. Refer to the

Analyzer Programming Manual

modied

or

stored

using

information

. However, user-dened functions can also be created,

from

the

\Programming-Related Softkey Descriptions".

HP 70000 Modular Spectrum

Restricting Instrument Operation to User Softkeys

If you wish to restrict analyzer operation to the user softkeys, execute the

programming command via HP-IB, or execute

CA

UTION

USERLOCK

is

on,

the

Once

either by executing the

computer

the

4

MENU

,

or

by

5

key. Since

using

USERLOCK ON

the

USERLOCK ON

5

N

NNNNNNNNNNNNN

softkeys

4

MENU

USERLOCK OFF

N

COMMAND

deactivates the

using these front panel controls:

can

be

reenabled

command via HP-IB with the use of a

which

are

4

MENU

softkeys must be transferred to the user-key menu before

USERLOCK ON

two

normally

5

key, the

USERLOCK ON

ways

only

accessed

N

NNNNNNNNNNNNNNNNNNN

COMMAND

,

with

is

executed, if a computer is unavailable. (See Example 1-3.)

Example 1-5.

1.

A

dd

the

Caution

2.

Press

3.

Press

characters contained in the alphabet shown on the analyzer display. Press

Disable the

N

NNNNNNNNNNNNNNN

N

COMMAND

above

5

.

4

USER

NNNNNNNNNNNNNNNNNNNNNN

N

COMMAND

.)

,

softkey

then

4

MENU

spell

5

softkey.

to

the user menu, following the procedure in Example 1-3. (See

out

USERLOCK

ON by positioning the cursor underneath the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

SELECT CHAR

to

enter each letter into the data line. As each letter is entered, it appears in the data line at

the bottom of the analyzer screen. (The character for \space" is located after

4.

After

USERLOCK ON

To reactivate the

is entered into the data line, press

function.

5

4

MENU

key, execute

USERLOCK OFF

computer program. Use the step-up key,

5

to position the cursor at the end of the data line.

4

8

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ENTER COMMAND

using the preceding procedure or a

Z

.)

to execute the

For additional information, see \User-Dened Softkey Descriptions" and \Programming-Related

Softkey Descriptions" in Chapter 3.

Overview 1-25

Using

The

4

DISPLAY

the

4

DISPLA

5

softkeys control the functions of the display module, which is a separate

5

K

ey

Y

instrument in the analyzer system. Display operation is described in documentation for the

HP 70004A color display, HP 70205A graphics display, and HP 70206A system graphics display

displays. Some commonly used features are described here for your convenience.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DISPLAY PRESET

user

softkeys

N

NNNNNNNNNNNNNNNNNNNNNNNNN

instrument

in the system, one at a time. Each press of

instrument in the system. If the analyzer is the only instrument in the system,

accesses the analyzer.

sets the format of the display to its preset state and assigns the

to

the

last

(select

instrument

instrument)

in the system that displayed measurement results.

links

the display and front panel controls with each

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

accesses the next

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT INSTR

does not access the display.

4

5

MENU

and

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT INSTR

NNNNNNNNNNNNNNNNN

PRINT

reproduces displayed results on a peripheral, raster-type graphics printer when it is

connected to the display HP-IB port.

NNNNNNNNNNNNNN

PLOT

reproduces the displayed results on a peripheral, vector-type plotter,whenitis

connected to the display HP-IB port.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

REPORT

ERRORS

lists

the

code

and description of any operation or hardware error,and

lists the name and HP-MSIB address of the module that produced the error.Todisplay

measurement results again, press

4

MENU

5or4

5

. See Appendix D for error-code

USER

descriptions.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

display tests

version).

Press

dot-generator

N

NNNNNNNNNNNNNNNNNNNNNNNNNN

INTEN

ADJUST

accesses display diagnostics and identies the display rmware (ROM

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

display

release

adjusts

tests

number.

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DISPLAY

,

intensity

of

the

ID

to

display

view

the

display

rmware

version

. Press the key, then turn the knob to vary

and

intensity.

The color of the elements of the analyzer display, such as the graticule or the annotation, can

be

varied

by

pressing

any of the following keys. Press

4

DISPLAY

N

adjust

5

,

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

color

N

,

N

edit

N

NNNNNNNNNNNNNNNNNNNNNNNN

color

to access them.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BACKGROUND

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

GRATICULE

NNNNNNNNNNNNNNNNNNNNNNN

TRACE A

NNNNNNNNNNNNNNNNNNNNNNN

TRACE B

NNNNNNNNNNNNNNNNNNNNNNN

TRACE C

NNNNNNNNNNNNNNNNN

LINES

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

(for limit lines)

TITLE/ACTIVE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ANNOTATION

NNNNNNNNNNNNNNNNNNNN

ADVISE

(for advisory messages)

NNNNNNNNNNNNNNNNNNNN

ERRORS

(error messages)

1-26 Overview

N

NNNNNNNNNNNNNNNNN

MARKERS

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

KEY LABELS

The

above

N

NNNNNNNNNNNNNN

N

HSL/RGB

N

NNNNNNN

HUE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SATURATION

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LUMINOSITY

N

NNN

RED

NNNNNNNNNNNNNN

BLUE

NNNNNNNNNNNNNNNNN

GREEN

softkeys

.

The

access the following color-editing softkeys, depending on the setting of

HP

70004A

Color

Display User's Guide

describes their operation.

Overview 1-27

A

ccessing

Custom,

User-Dened

Functions

Unique

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ENTER COMMAND

functions

can

be

stored

in

internal

memory

with computer programs or

. Functions and personalities can also be loaded from the memory card into

internal memory.To view functions stored in internal memory, press

N

NNNNNNNNNNN

MENU

NNNNNNNNNNNNNN

Misc

NNNNNNNNNNNNNN

MORE

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

execute

DLP

(execute \down-loadable" program)

Stored functions are listed along the right side of the display. Press the softkeys to execute

each function.

1-28 Overview

A

ccessing

the

Memory

Card

Memory

HP

Insert

cards

70004A

the

color

card

are

display

with

available

or

the

arrow

for

external

connected

facing

memory

to

it

up

into the slot. When correctly installed, a portion of

when

via HP-MSIB.

the analyzer is installed in the

the card (2 cm) is exposed. Improper insertion can produce error messages.

Figure 1-12. Inserting the Memory Card

The memory card requires power. Items stored in the memory card remain as long as the

card has sucient power. The HP 70004A color display provides power to the card when it

is installed. The HP 70004A color display supplies power to the memory card only when the

display is turned on. When the card is removed or the display is turned o, power is supplied

by a battery within the memory card.

Change the memory-card battery every two years. On new cards, the time of installation is

engraved on the side of the card. The rst digit refers

refer to the month, and the last digit refers to the week. F

to the year. The next two characters

or example, 3OC3 indicates the

battery was installed during the third week of October in 1993.

To change the battery

, follow this procedure:

1. Install the memory card into the HP 70004A color display.

2. Locate the groove of the battery clip at the front edge of the card.

3. Gently pry the battery clip out of the card. The battery ts inside the clip.

4. Replace the battery, making sure the plus (+) sign on the battery is on the same side as the

plus sign on the clip.

5. Insert the battery clip into the memory card, holding the clip as oriented in the following

gure.(Face the open edge of the clip toward the write-protect switch on the memory

card.)

Overview 1-29

6. Write the date that the battery was replaced on the memory-card label, to remind you when

the battery should be replaced.

CAUTION

Memory

battery

all

before

cards

must

be

is

removed.

installed

Be

sure

in an HP 70004A color display when the

the display is turned on before removing the

. If the battery is removed while the card is not installed in the display,

data in the memory card is lost. Store memory-card les on another device

changing the battery, when extra care is appropriate.

Formatting a Memory Card

New

memory

cards

need

to

be formatted before use. Use the

cards

with the logical-interchange-le (LIF) format.

format used memory cards, but note that the

FORMAT

N

NNNNNNNNNNNNNNNN

FORMAT

formatting process destroys all stored data

softkey

can

also be used to

to

format

new

.

N

NNNNNNNNNNNN

N

Follow this procedure:

1. Insert the memory card.

2. Specify the location of the memory card. If the card is in the HP 70004A color display, press

NNNNNNNNNNNNNN

Misc

N

HP-MSIB

2

3.

Press

CA

UTION

,

N

NNNNNNNNNNNNNNNNNNNNNNNNNNN

32).

N

FORMAT

NNNNNNNNNNNNNN

MORE

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

HP-MSIB

,

CARD

,

N

NNNNN

N

FORMAT

then

N

NNNNNNNN

CARD

enter

erases

.

If

the

card

its

HP-MSIB address (that is, the column address + row address

the

contents

of

select the desired memory before executing

is

the

in

another

currently

HP-MSIB

selected memory. Be sure to

NNNNNNNNNNNNNNNNNNNN

FORMAT

device

,

. Internal memory is

press

NNNNNNNNNNNNNN

Misc

NNNNNNNNNNNNNN

MORE

,

selected automatically when power is applied.

,

1-30 Overview

Softkey Menu Maps

2

The following softkey menus are accessed by pressing the

softkeys located along the left side of the display. The menu softkeys are displayed as separate

menu pages. Press the

NNNNNNNNNNNNNN

MORE

softkeys to access additional menu pages.

Table 2-1 summarizes the functions accessed by each of the top-level

4

MENU

5

key and then pressing the

4

5

MENU

keys.

Table 2-1. Function Categories Accessed by Top-Level Keys

Top-Level

Instrument Function Categories

Menu

Softkeys

NNNNNNNNNNNNNN

Freq

Frequency

selection,

Preselector

,

Signal

identication

NNNNNNNNNNNNNNNNN

Amptd

N

Marker

N

NNNNNNNNNN

BW,Swp

N

Traces

N

NNNNNNNNNNNNNNN

State

N

NNNNNN

NNNNN

Amplitude

meter

Lightwave

Measurement

Bandwidth

selection,

markers

range

selection,

Calibration,

,

Marker

adjustment,

Sweep

Lightwave

annotation,

Marker

and

trigger

Marker

utility

selection,

processing

Instrument

state

,

Memory

,

Signal

detection,

processing

External mixer, Instrument state,Memory, Preamplier,

mode

positioning,

Trace

,

P

ower

Trace

Preselector, Signal path selection, Tracking generator and

NNNNNNNNNNNNN

N

Misc

source

Amplitude correction, Display, Limit lines, Memory,

Programming, Service, User denition

The

softkey

menu

illustrations

in

this chapter are arranged in the same sequence as the

softkeys on the left side of the display, reading from the top softkey to the bottom softkey.

Softkey Menu Maps 2-1

aaaaaaaaaaaaaaaaaaaaaa

Freq

Softkey

Menu

* Softkey is absent when a lightwave signal path (L

menu. See the

y

Softkey is present only if the system includes a module with preselector capabilities.

z

Softkey is present only if an HP 70908A RF section is installed in the system.

2-2 Softkey Menu Maps

??????????

State softkey menu map.

Figure 2-1.

W) for an HP 70810B lightwave section is selected from the select input softkey

NNNNNNNNNNNNNN

Freq

Softkey Menu Map

aaaaaaaaaaaaaaaaaaaaaaaaaa

Amptd

Softkey

Menu

N

Amptd

NNNNNNN

Softkey

Menu

????

?????????????????????????????

?

*

LINEAR Vlt Pwr is replaced by the

????????????????????????????????????

?

the

LW MODE OptElec softkey.

y

Softkey is deleted when the optical mode for a lightwave signal path (L

z

Softkey is present only if the system includes a module with power meter capabilities, such as the HP 70810B lightwave section.

x

Softkey is present when a lightwave signal path (LW) is selected from the select input softkey menu. See the

menu map.

k

Softkey is absent when a lightwave signal path (LW) is selected from the select input softkey menu. See the

map.

# Softkey is present when the electrical mode for a lightwave signal path (LW) is selected with the

????

???????????

?

LINEAR softkey when the optical mode for a lightwave signal path (L

????????????????????????????????????

?

W) is selected with the

LW MODE OptElec softkey

?????????????????????????????????????

LW MODE OptElec softkey.

W) is selected with

??????????

State softkey

??????????

State softkey menu

NNNNNNNNNNNNNNNNN

Figure 2-2.

Amptd

Softkey Menu Map

Softkey Menu Maps 2-3

.

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Marker

Softkey

Menu

?????????????????????????????????

?

SIG TRK On O is replaced by

*

softkey menu. See the

?????????????????????????????????

y

MINIMUM POINT is replaced by

softkey menu. See the

2-4 Softkey Menu Maps

?????????????????????????????????

?

??????????

State softkey menu map.

??????????

State softkey menu map.

RIN SYS On O when a lightwave signal

????????????????????????????????????

REL PWR On O when a lightwave signal path (L

Figure 2-3.

NNNNNNNNNNNNNNNNNNNN

Marker

path (LW) is selected from the select input

W) is selected from the select input

Softkey Menu Map

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

BW,Swp

Softkey

Menu

N

NNNNNNNNNN

BW,Swp

Softkey

Menu

Figure 2-4.

NNNNNNNNNNNNNNNNNNNN

BW,Swp

Softkey Menu Map

Softkey Menu Maps 2-5

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Traces

Softkey

Menu

??????????????????????????????????????

* If the

y

z

?

VIEW A BLANK A softkey is present, press

??????????????????

?

STORE A softkey is replaced by

These softkeys are only available after pressing

2-6 Softkey Menu Maps

?

??????????????????????????????????????

?

VIEW A BLANK A when

CLEAR WRT A to return the

????????????????????????????????

?

3-DIMEN On O .

NNNNNNNNNNNNNNNNNNNN

Figure 2-5.

Traces

??????????????????????????????

??????????????????

?

STORE A is pressed.

Softkey Menu Map

??????????????????

?

STORE A softkey.

aaaaaaaaaaaaaaaaaaaaaaaaaa

State

Softkey

Menu

N

State

NNNNNNN

Softkey

Menu

* The softkey is present only if there are multiple input signal paths available. The number of signal path inputs displayed after

pressing the softkey is dependent on the number of RF and lightwave modules installed in the system.

y

The model number for each module is displayed below the input signal designation. The menu illustrates the input signal

modules from a HP 71400C lightwave signal analyzer.

z

Two inputs are displayed for each HP 70810B lightwave section that is installed in the system. TheW input is displayed below

the lightwave (L

???????????????????????????????????

IN 2W 70810B are replaced by

x

Softkey is present only if the system includes a module with preselector capabilities

k

Softkey is present only if the system includes a module with tracking generator capabilities.

W) input. When an HP 70910A RF section is in the system, the softkeys

??????????????????????????????????

IN 1 RF 70910A and

???????????????????????????????????

IN 2 EM 70910A .

???????????????????????????????????

IN 1 L

.

W 70810B and

NNNNNNNNNNNNNNNNN

Figure 2-6.

State

Softkey Menu Map (1 of 5)

Softkey Menu Maps 2-7

N

NNNNNNN

State

Softkey

Menu

* The softkey is present only if there are multiple input signal paths available. The number of signal path inputs displayed after

pressing

the

softkey

is

dependent on the number of RF and lightwave modules installed in the system.

x

Softkey is present only if the system includes a module with preselector capabilities.

k

Softkey is present only if the system includes a module with tracking generator capabilities.

Figure 2-7.

2-8 Softkey Menu Maps

NNNNNNNNNNNNNNNNN

State

Softkey Menu Map (2 of 5)

N

State

NNNNNNN

Softkey

Menu

* The softkey is present only if there are multiple input signal paths available. The number of signal path inputs displayed after

pressing the softkey is dependent on the number of RF and lightwave modules installed in the system.

x

Softkey is present only if the system includes a module with preselector capabilities.

k

Softkey is present only if the system includes a module with tracking generator capabilities.

# Softkey is present only if the system includes a tracking generator module with modulation capabilities.

Figure 2-8.

NNNNNNNNNNNNNNNNN

State

Softkey Menu Map (3 of 5)

Softkey Menu Maps 2-9

N

NNNNNNN

State

Softkey

Menu

* The softkey is present only if there are multiple input signal paths available. The number of signal path inputs displayed after

pressing

the

softkey

is

dependent

y

The model number for each module is displayed below the input signal designation. The menu illustrates the input signal

on

the number of RF and lightwave modules installed in the system.

modules from a HP 71400C lightwave signal analyzer system.

z

Two inputs are displayed for each HP 70810B lightwave section that is installed in the system. TheW input is displayed below

the lightwave (L

???????????????????????????????????

IN 2W 70810B are replaced by

x

Softkey is present only if the system includes a module with preselector capabilities

k

Softkey is present only if the system includes a module with tracking generator capabilities.

** Softkey is present only if the system includes a preamplier module

yy

Softkey is present only if the system includes an HP 70700A digitizer.

zz

Softkey is present only if an HP 70908A RF section is installed in the system.

W) input. When an HP 70910A RF

??????????????????????????????????

IN 1 RF 70910A and

section is in the system, the softkeys

???????????????????????????????????

IN 2 EM 70910A .

.

???????????????????????????????????

IN 1 L

.

W 70810B and

NNNNNNNNNNNNNNNNN

Figure 2-9.

State

Softkey Menu Map (4 of 5)

2-10 Softkey Menu Maps

N

State

NNNNNNN

Softkey

Menu

zz

Softkey

is present only if an HP 70908A RF section is installed in the system.

xx

Pressing this softkey causes all display links to be broken. To establish new display links, press

NNNNNNNNNNNNNNNNN

Figure

2-10.

State

Softkey

Menu

Map

(5

of 5)

4

DISPLA

5

and

4

INSTR

5

.

Softkey Menu Maps 2-11

aaaaaaaaaaaaaaaaaaaaaa

Misc

Softkey

Menu

?????????????????????????

* When

y

?

DELETE or

Pressing softkey provides a sequence of three editing functions. Press

?????????????????????????

Press

INSERT or

... softkey is present,

... to access the delete editing function. Press

????????????????????????????

?

SELECT CHAR is replaced by

NNNNNNNNNNNNNN

Figure 2-11.

Misc

2-12 Softkey Menu Maps

?????????????????????????????

?

DELETE CHAR .

????????????????????????????

REPLACE or... to access the insert editing function.

??????????????????????????

DELETE or

... to access the replacement editing function.

Softkey Menu Map (1 of 2)

N

Misc

N

NNNN

Softkey

Menu

z

If a limit value is entered,

x

???????????????????????????

Press

DELETE ALL to return to the

?????????????????????

enter limit is replaced by

?????????????????????

enter limit softkey.

NNNNNNNNNNNNNN

Figure 2-12.

Misc

???????????????????

edit limit .

Softkey Menu Map (2 of 2)

Softkey Menu Maps 2-13

3

SoftKey Quick Reference

The following tables show the softkeys that can be accessed by each of the seven top-level

softkeys that appear on the left side of the display when

Generally, a softkey that is displayed in inverse video indicates that the function is enabled.

When an active function is enabled, it is always displayed in inverse video. The use of an

underline within a softkey display indicates that a specic functional state for the softkey is

selected.

Refer to \Functional Grouping Denitions" for detailed descriptions of each functional grouping

in the following tables.

4

MENU

5

is pressed.

SoftKey Quick Reference 3-1

Table 3-1. SoftKey Quick Reference, Organized by Function

Menu

K

ey

A

ctive-Trace

Processing Functions

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

3-DIMEN On Off

NNNNNNNNNNNNNNNNNNNNNNN

A

XCH

NNNNNNNNNNNNNNNNNNNNNN

N

B

A XCH C

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A6(A0B)0C+DL

N

NNNNNNNNNNNNNNNNNNNNNNNNNN

A

6

(A0B)0C

NNNNNNNNNNNNNNNNNNNNNNNNNN

A6A0B+DL

N

NNNNNNNNNN

A

6

A

0

B

NNNNNNNNNNNNNNNNNNNNNNNNNN

A6A0C+DL

NNNNNNNNNNNNNNNNN

A6A0C

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A

6

A*DL/(A+B)

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A6A*DL/(A+B+C)

N

NNNNNNNNNNNNNNNNNNNNNNNNNN

A6A*DL/B)

N

NNNNNNNNNNNNNNNNNNNNNNNNNN

N

A6A*DL/C)

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A

6

DL*(A+B)/C)

N

NNNNNNNNNNNNNNNNNNNNNNNNNNN

A-B+DL

On

Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A-B->A On Off

N

NNNNNNNNNNNNNNNN

A<-A+B

NNNNNNNNNNNNNNNNNNNNNN

N

B

XCH

C

NNNNNNNNNNNNNNNNNNNNNNN

B<-B-DL

N

NNNNNNNNNNNNN

C<-B

NNN

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CLEAR WRT A

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CLEAR WRT B

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

CLEAR WRT C

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

HORZ OFFSET

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LINES On Off

Denition

Turn on or o the three-dimensional trace display capability.

Exchanges

the

contents

of

the

trace

A

and

B

registers.

Exchanges the contents of the trace A and C registers.

Performs trace math (A0B)0C+DL7A with each sweep.

P

erforms

trace math (A0B)0C7A with each sweep.

Performs trace math A0B+DL7A with each sweep.

P

erforms

trace

math

A

0B7

A with each sweep.

Performs trace math (A0C)+DL7A with each sweep.

Performs trace math A0C7A with each sweep.

P

erforms

trace

math

A*DL/(A+B)

7

A

with

each

sweep

.

Performs trace math A*DL/(A+B+C)7A with each sweep.

Performs trace math A*DL/B7A with each sweep.

Performs trace math A*DL/C7A with each sweep.

P

erforms

Subtracts

the

display

trace

line

math

DL*(A+B)/C7A with each sweep.

B

from

trace

A

point

by

point,

,

and

then

stores

the

results

adds

in

trace A.

the value of

Subtracts trace B from trace A point by point, then stores the

results in trace A.

Adds traces A and B point by point, then stores the results in trace

A.

Exchanges

the

contents

of

the

trace

B

and

C registers.

Subtracts the value of the display line from trace B, then stores the

result in trace B.

Stores the results of trace B in trace C.

Continuously displays any signals detected at the spectrum

analyzer input for the related trace.

Continuously displays any signals detected at the spectrum

analyzer input for the related trace

.

Continuously displays any signals detected at the spectrum

analyzer input for the related trace.

Select the horizontal oset of the three-dimensional trace display.

Changes the appearance of displayed trace information.

3-2 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Active-Trace Processing Functions | Continued

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

MAX

HOLD A

N

NNNNNNNNNNNNNNNNNNNNNNNN

N

MIN

HOLD

A

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

PERSIST

On

Off

Compares

each

then

Compares

each

then

Simulates

trace

the current amplitude value of each point on a trace to

corresponding value detected during the previous sweep,

retains the maximum values.

the

current

corresponding

retains

the

analog

amplitude

value

minimum

displays

detected

by

information.

NNNNNNNNNNNNNNNNNNNNNNN

STORE A

Stops the updating of the Trace A, stores the trace data in reserved

memory, then activates the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

TRACE LENGTH

Varies the number of points in a trace from 3 to 1024.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VERT OFFSET

Select the vertical oset of the three-dimensional trace display.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VID

AVG

On

Off

Executes

level,

but

analog

characteristic

a

digital-averaging

does

not

aect

of

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VIEW A BLANK A

Selects two functions. When set to view, stored trace data is

displayed. When set to blank, stored trace data is blanked from

the display, but remains in reserved memory. Trace B and Trace C

have a corresponding view and blank softkey function.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

oneshot

N

NNNNNNNNNNNNNNNNNNNNNN

trace

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

trace

math

A

B

C

linmath

A

ccesses

Selects

A

ccesses

oneshot math active-trace processing function softkeys.

the

active

linear

trace

math

for

active-trace

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

trace logmath

Accesses log math active-trace processing function softkeys.

value

of each point on a trace to

during

values.

changing

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VIEW A/BLANK A

routine

sweep

analyzer

the

that

reduces

time

,

.

trace-processing

processing

the previous sweep,

appearance

of

displayed

softkey.

the

noise-oor

bandwidth,

function

or

functions

softkeys.

any

.

other

SoftKey Quick Reference 3-3

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Amplitude Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

A

METER On Off

Enables

readout of currently updated trace point.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A UNITS AutoMan

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AMP

REF

OFFSET

Selects default amplitude units.

Allows

relative-amplitude

the

displayed

oset

power

value

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AMPCOR On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ATTEN

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

AutoMan

CPL AVG On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNN

INPUT

IMPED

Applies amplitude correction at specied frequencies.

V

aries

either RF input attenuation or optical input attenuation.

Controls the coupling between VAVG and PWRAVG.

Species

the

value

of

input

port.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LINEAR

Vlt

Pwr

Places

units

the

analyzer in linear mode, scaling the graticule in linear

proportional

to the input voltage or input power.

NNNNNNNNNNNNNNNNNNNN

LINEAR

N

NNNNNNNNNNNNNNNNNNNNNNNNN

LOG

dB/DIV

Places the analyzer in linear power mode, scaling the graticule in

linear

units

Scales

the

graticule

proportional

to

in logarithmic units from 0.01 to 20 dB per

division.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MAX

IN

AutoMan

Species

analyzer

the

input

maximum

during

expected

a

given

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MAX MXR LEVEL

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

REF LVL POSN

Species the maximum signal level at the mixer input.

Repositions the reference level on any of the major graticule lines

during logarithmic mode.

NNNNNNNNNNNNNNNNNNNNNNN

REF

LVL

Species

the

absolute-amplitude

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

STP GAIN AutoMan

NNNNNNNNNNNNN

N

VOLT

Controls the rst step gain in the signal path.

Allows the amplitude readout annotation for the reference level,

marker, display line, and threshold to be changed to volts.

NNNNNNNNNNNNNN

WATT

Allows the amplitude readout annotation for the reference level,

marker, display line, and threshold to be changed to WATTs.

NNNNNNNNNNNNNN

dBV

Allows the amplitude readout annotation for the reference level,

marker, display line

, and threshold to be changed to dB

NNNNNNNNNNNNNN

dBmV

Allows the amplitude readout annotation for the reference level,

marker, display line, and threshold to be changed to dBmV.

NNNNNNNNNNN

dBm

Allows the amplitude readout annotation for the reference level,

marker, display line, and threshold to be changed to dBm.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

units menu

Provides an amplitude readout selection menu.

level

to

be

,

specied

adjusted,

by

the

using a

user

.

impedance expected at the active input

the

input

power

.

signal

measurement

value

level

of

the

to

the

spectrum

procedure

graticule

.



V.

3-4 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Amplitude-Correction Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

AMPCOR

-> LOWER

Stores

amplitude correction values as a lower limit line.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AMPCOR -> UPPER

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LOWER->

AMPCOR

Stores amplitude correction values as a upper limit line.

Stores

specic

a

lower-limit

frequency

line

range

as

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

UPPER-> AMPCOR

Stores an upper limit-line as amplitude correction values for a

specic frequency range.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

lim <-> ampcor

Accesses the softkeys that allow modication of user-dened

amplitude-correction values, using the limit-line functions.

amplitude

correction

values

for a

Bandwidth

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Functions

RB/SPAN RATIO

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RES BW AutoMan

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

TRIGGER

DELAY

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VBW

CPL

Rx

SA

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VBW/RBW RATIO

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VID

BW AutoMan

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

VID

LIN

On

Off

Species the ratio between the resolution bandwidth and span

settings.

Species the width of the resolution bandwidth lter and controls

the coupling between the resolution bandwidth and span settings.

Controls

the

trigger

delay

or pre-trigger for the currently selected

ADC.

Controls

the

value

of

the

receiver

mode

ag.

Species the ratio between the video and resolution bandwidths

that is maintained when their settings are coupled.

Species

coupling

the width of the video-bandwidth lter and controls the

between the resolution bandwidth and video-bandwidth

lter settings.

Controls

the

video

trigger

display

lines

.

SoftKey Quick Reference 3-5

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Calibration Functions

N

NNNNNNNNNNNNNNNNNNN

N

CAL

ALL

Executes

a calibration routine that applies all correction factors.

NNNNNNNNNNNNNNNNNNNNNNNNNN

CAL GAIN

Corrects errors in the step gain ampliers in the IF section and the

attenuator in the RF or preselector section.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CAL LOGAMP

Corrects errors in the logarithmic ampliers in the IF section.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CAL RES BW

Corrects amplitude and frequency anomalies in the resolution

bandwidth lters in the IF section.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CAL SRC INT EXT

N

NNNNNNNNNNNNNNNNNNNNNNNN

CAL

VID

BW

Switches between an internal or external calibration reference.

Corrects

bandwidth

amplitude

lters

and

in

frequency

the

IF

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FLATCAL On Off

Disables the correction factors that compensate for

frequency-dependent gain variations in the RF section.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FREQ

FOR

CAL

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

GAINCAL On Off

Species

the

frequency

of

Disables the correction factors that compensate for errors in the

attenuator.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LOG

CAL

N

POWER

NNNNNNNNNNNNNNNNNNNNNNNN

FOR

On

Off

CAL

Disables

the

correction

logarithm-amplier

Species

the

power

factors

errors

of

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RBW AMP On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RBW FREQ On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SYS

COR

N

VBW

N

AutoOff

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AMP

On

Off

Disables the amplitude-correction factors to the local oscillator.

Disables the frequency-correction factors to the local oscillator.

Enables

Disables

system

the

specic

amplitude-correction

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

cal enable

Accesses softkeys that control the usage of the system correction

factors.

NNNNNNNNNNNNNNNNNNNNNNNNNN

cal menu

Accesses the system calibration softkeys.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

cal

src values

A

ccesses the internal or external calibration source softkeys.

anomalies

section.

the

calibration

that compensate for

in

the

IF section.

calibration

reference

factors

in

the video

reference

.

factors

to

the local oscillator.

.

3-6 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Display Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

ANOTATN

On Off

Turns

the displayed annotation on and o.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DSP LIN On Off

Positions a horizontal line, called a display line, anywhere on the

graticule.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ENTER LINE

Enters the text created by the user in the \TITLE" entry window

into the title display line at the top of the display.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

GRAT

On

Off

Turns

the

graticule

on and o.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

GRATSCR On Off

N

NNNNNN

HOLD

Controls the positioning of the displayed horizontal graticule lines.

Blanks

keypad,

the

knob

active

,

and

function

step

keys

activated.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LABEL Y On Off

Controls the display of annotation for the horizontal graticule.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LOCKOUT

ANOTATN

Turns

the

displayed

annotation

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

THRESHD

N

NNNNNNNNNN

TITLE

On

Off

Blanks

all

threshold

A

ccesses

displayed

level

a

set of editing-function softkeys that display a message

trace

without

altering

in the title line.

N

NNNNNNNNNNNNNNNNNNNNNNN

grat

control

A

ccesses

the

graticule

control

readout

and

disables the numeric

until another analyzer function is

o.

information

softkey

stored

below

trace

an

data.

functions

amplitude

.

SoftKey Quick Reference 3-7

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

External-Mixer Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

BIAS

ADJUST

A

ctivates a bias current that is specied with the numeric keypad.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BIAS On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNN

BIAS

PK

MAX

Activates the softkey functions that control the bias current.

Sets

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

highest

BIAS PK START

possible

softkey.

bias

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BIAS PK MIN

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

BIAS PK RES

Sets the lowest possible bias current available to the

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BIAS PK START

softkey.

Determines the number of possible bias currents that are available

within a specied range.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BIAS PK START

Peaks the conversion gain for the signal marked by the active

marker.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CONV LOSS

Osets the reference level to compensate for amplitude losses at

the

active

input

port.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LOCK H# On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LOCK HARMNC#

Turns the lock harmonic number function on and o.

Limits the frequency range to the frequency band that corresponds

to the harmonic number, as shown in Table 4-3 .

N

NNN

bias

A

ccesses

bias

adjustment

softkeys

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ext

mixer

A

ccesses

the

external-mixer

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

fulband

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

fulband

KAQUVE

WFDGYJ

Species

external

Species

the

frequency

mixers

.

the

frequency range for measurements made with

range

external mixers.

current

for

softkey

for

measurements

available

an

external mixer.

functions

.

to

made

the

with

3-8 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Frequency Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

BNKSTRT

On Off

Blanks

all displayed trace information for frequencies prior to a

calculated

frequency point.

NNNNNNNNNNNNNNNNNNNN

CENTER

Species

the

center

frequency

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CF STEP AutoMan

Is used with the

485

and

495

frequency by increments called steps.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FREQ

OFFSET

Osets

the

value

of absolute frequency annotation.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FRQ LIM On Off

N

NNNNNNNNNNNNNNNNNNNNN

FULL

SPAN

Enables measurements beyond 22 GHz.

Sets

the

measurement

system.

range

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LIMIT START

Disables the blank start function and sets the start frequency to

either a value eight times the resolution bandwidth or 100 kHz,

whichever

is

greater

.

NNNNNNNNNNNNNN

SPAN

N

NNNNNNNNNNNNNNNN

START

N

NNNNNN

STOP

Changes

center

the

analyzer

frequency

measurement

.

Sets the start frequency.

Sets

the

stop

frequency

.

step keys to change the center

to

the

maximum frequency range of

range

symmetrically

about

the

Instrument-State

NNNNNNNNNNNNNNNNNNNN

CONFIG

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

EXTEND STATE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NO. OF STATES

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

P STATE On Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

POWERON IP LAST

NNNNNNNNNNNNN

NNNNNNNNNNNNNNNNNNNNNNNNN

RECALL STATE

NNNNNNNNNNNNNNNNN

STATE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

TRACE PRESET

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

preset adc

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

preset input

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

show states

Functions

Describes the placement of each module in the system by column

and row number.

Lists module-level parameters and current values for each module

of the instrument.

Provides

view

of

information.

Adds or deletes state-register les and their contents from user

memory.

Protects the contents of all state-register les.

Species the instrument state when the instrument is turned on.

Recongures the analyzer into a state that has been saved in a

state-register le

.

Lists the current state of system-level parameters under operator

control.

Resets the trace functions to a known state without aecting the

analyzer measurement range.

Species whether internal or external analog-to-digital processing

is active after instrument preset is executed.

Determines which input port is active after instrument preset is

executed.

Accesses the softkeys that provide the current instrument-state

information.

SoftKey Quick Reference 3-9

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Lightwave Functions

N

NNNNNNNNNNNNNNNN

N

LAMBDA

Selects

a calibrated wavelength for a lightwave signal analyzer.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LW MODE OptElec

Selects either optical units or electrical units for the signal trace

when a lightwave signal path is selected.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RSPSVTY AutoMan

Allows manual entry of a responsivity value for the lightwave

section.

Limit-Line Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNN

AMPTD

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

VALUE

BEEPER On Off

Moves

the

entry

window

in

Compares the amplitude values of the active trace to the

parameters listed in the limit-line table.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BLANK TRACES

Stops the display of any active trace (trace A, B, or C).

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CONFIRM DELETE

Erases the contents of the limit-line table after

been

pressed.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DELETE ALL

Erases the contents of the limit-line table and prepares it for new

data entry.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DELETE

N

FREQ

SEGMENT

N

NNNNNNNNNNNNNNNNN

VALUE

Erases

table

.

Moves

the

specied segment of the limit-line from the limit-line

the

entry

window

in

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LAST SEGMENT

Moves the entry window to the next row in the limit-line table,

and species that the parameters in that row constitute the last

line segment in the limit line.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LIMITS On Off

Compares the amplitude values of the active trace to the

parameters listed in the limit-line table.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Moves

the

entry

window

to

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RELATIV On Off

Species whether the parameters in the limit-line table represent

absolute amplitude and frequency values or are values relative to

the reference-level and center-frequency settings.

NNNNNNNNNNNNNN

TYPE

Moves the entry window in the limit-line table.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

UPPER/LOWER

Species whether the parameters in the limit-line table are for the

upper or lower limit-line.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

edit limit

Displays the limit-line table

allows the displayed limit-line parameters to be edited.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

enter limit

Allows a set of limit-line parameters to be dened by the user.

the

limit-line table.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DELETE ALL

the

limit-line

the

next row in the limit-line table.

table

.

has

, which lists limit-line parameters, and

3-10 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Marker Functions

N

NNNNNNNNNNNNNNNNNNN

N

1

-> SP

Sets

the start and stop frequencies equal to the frequencies of the

reference

and active markers.

NNNNNNNNNNN

1/T

Describes

sweep-time

the

marker

position.

position

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

-> CF STEP

Sets the center-frequency step size equal to the frequency

dierence between the reference and active markers.

NNNNNNNNNNNNNNNNN

-> CF

Sets the center frequency equal to the marker frequency.

NNNNNNNNNNNNNNNNNNNN

->

REF

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

ACTIVE MARKER

Sets

the

reference

level

equal

Selects a number from 1 to 5 for the active marker.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CLOSE PIT

Repositions the

active

marker on the trace and selects the closest

pit.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CLOSEST

N

NNNNNNNN

DELTA

PEAK

Repositions

signal

peak.

P

ositions

a

the

active

second

marker

active marker, called the reference marker.

NNNNNNNNNNNNNN

FREQ

N

HIGHEST

N

NNNNNNNNNNNNNNNNNNNNN

PEAK

Describes

Moves

the

marker

position

to

the

peak

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LEFT PEAK

N

NNNNNNNNNNNNNNNNNNNNNN

LEFT PIT

Moves the marker to the closest signal peak of lower frequency.

Moves the displayed, active marker to the next signal peak (to the

left).

NNNNNNNNNNNNNNNNNNNNNNN

MIN

PIT

Selects

using

the

MKPIT

lowest

pit.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MIN POINT

Moves the displayed marker to lowest signal level in trace.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MINIMUM PEAK

Moves the marker to the lowest detected peak level on the trace.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MINIMUM POINT

Moves the marker to the lowest detected level on the trace.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MK STOP On Off

Provides a sweep-to-marker function.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MKNOISE On Off

Displays the rms noise level at the marker position.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MKPAUSE On Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

MKR BW On Off

Stops the sweep at the marker position from 0 to 1000 seconds.

Displays the frequency dierence between markers #3 and #2.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MKR NRM On Off

Places the active marker on a trace at the specied frequency

during zero span mode

, at the specied unit of time.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MRK TRA A B C

Species whether the active marker is positioned on trace A, B,or

C.

in

terms

of

the

to

on

the

marker amplitude.

the

trace

and

inverse

selects

of the marker

the

closest

on a trace relative to the position of the

in

terms

of

This

of

would

frequency

the

highest-level

be used to move up after

.

signal

detected.

,or

SoftKey Quick Reference 3-11

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Marker Functions | Continued

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

Moves

trace

the marker to the next lowest detected peak level on the

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Moves

less

than

the

marker

the

to

current

the

signal

marker

NNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT PIT

Moves the marker to the signal peak of greatest amplitude that is

greater than the current marker amplitude.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PEAK EXCURSN

Is used in conjunction with the marker-peaking functions when

measuring low level signals.

NNNNNNNNNNNNNNNNNNNN

PERIOD

Describes the position of the marker in terms of the period, where

period equals 1/frequency.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

PIT EXCURSN

Controls the excursion value for marker pit operations.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

READ AutoMan

N

NNNNNNNNNNNNNNNNNNNNNNN

REL LEFT

Is set to manual whenever the

softkeys

are

pressed.

Activates marker #2 and positions it on a trace in the current

amplitude terms, relative to the position of marker #1.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

REL

PWR

On

Off

Is

a

signal

marker

amplitude

function

at

that

the

calculates

marker

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

REL

RIGHT

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

RIGHT PEAK

N

NNNNNNNNNNNNNNNNNNNNNN

RIGHT

PIT

A

ctivates

amplitude

marker

terms

#3

,

relative

and

positions

to

Moves the marker to the closest signal peak of higher frequency.

Selects

the

next right pit.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RIN SYS On Off

Turns the RIN marker function on and o.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SIG TRK LIMIT

Use the tracking-limit function when tracking a signal that is close

to another signal of similar amplitude.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SIG TRK On Off

Keeps the marker and the trace point it marks at the center of the

display.

NNNNNNNNNNNNNNNNNNNNNNN

SWPTIME

Describes the marker position in terms of sweep time.

NNNNNNNNNNNNNNNNNNNNNNN

WAVELEN

Converts the displayed frequency to its related wavelength.

NNNNN

X

Used to specify the marker position in terms of a ratio after

making a numeric entry

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ZOOM TO RES BW

Reduces the span to 0 Hz, then adjusts the resolution bandwidth to

a value of your choosing.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

marker excursn

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

marker readout

Accesses marker peak and pit excursion softkey menu.

Selects marker readout annotation.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

mkr bw/zoom bw

Accesses the marker bandwidth and zoom bandwidth softkeys.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

pit,min markers

Accessesthe marker pit operations softkey menu.

peak

amplitude.

NNNNNNNNNNNNNN

FREQ

the dierence between the

and

the average optical power.

it

the

position

of

greatest

NNNNNNNNNNNNNNNNNNNN

,

PERIOD

on

a

trace

of

amplitude that is

NNNNNNNNNNNNNNNNNNNNNNN

,

SWPTIME

in

the

marker

#1.

,or

current

NNNNNNNNNNN

1/T

3-12 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Memory-Related Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

CHANGE

PREFIX

Allows

memory

the user to change the le prex for les that are stored in

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CONFIRM

ERASE

Erases

memory

when

pressed.

NNNNNNNNNNNNNNNNNNNN

FORMAT

Erases, then initializes the currently selected memory.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

HP-MSIB CARD

Accesses various types of external memory that are available

through an HP-MSIB device.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

HPIB DISK

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

INTRNL

MEMORY

Selects external memory that is accessed on an HP-IB device.

Selects

HP

internal

70900B

local

memory

oscillator

in

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LOAD FILE

Recalls any le stored in user memory, duplicating the operation of

the recall softkeys.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PARTIAL

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ERASE

PURGE FILE

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RECALL

N

RECALL

N

NNNNNNNNNNNNNNNNNNNNNNNNNN

LIMIT

MEMORY

Erases

all

unprotected

internal

Erases les from internal or external memory.

Loads

over-writing

Loads

reserved

the

memory

contents

any

contents

.

of a limit-line le into the limit-line table,

existing

of

a

program

table entries.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RECALL TRACE A

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RECALL USERKEY

Loads the contents of a trace le into trace A.

Clears the current menu of user-dened softkeys, then loads the

contents of a user-key le into the user-key menu.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SAVE

LIMIT

Stores

the

contents

of

the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SAVE MEMORY

Stores all non-ASCII, internal-memory entries in a program le into

external memory only.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SAVE STATE

Saves the current instrument state in a state-register le.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SAVE TRACE A

Stores trace A in a trace le.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SAVE USERKEY

Stores the current menu of user-dened softkeys in a user-key le.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

recall from...

Accesses the softkey functions that select a memory device or

modify existing les

.

NNNNNNNNNNNNNNNNNNNN

recall

Accesses the memory-retrieval softkey functions.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

save to...

Accesses the softkey functions that select a memory device or

modify existing les

.

NNNNNNNNNNNNNN

save

Accesses the memory-storage softkey functions.

the

analyzer

source

.

memory

le

limit-line

, specically in the

contents

into

internal

table

in a limit-line le.

.

memory

or

SoftKey Quick Reference 3-13

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Power-Meter Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

AUTZERO

On Off

Selects

the

automatic zeroing of osets in the internal power meter of

lightwave section.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NOISE

ON

OFF

Provides

an

external-noise-source

measurements

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PREAMP N On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PWR

AVG

On

Off

Turns on a preamplier.

Controls

video

averaging

of the power meter value.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PWR BAR On Off

Turns on and o the display of the power bar at the left-hand side

of the display screen and the average-power readout annotation.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

PWR MTR OptElec

Selects either optical units or electrical units for power meter

annotation.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

USR PWR On Off

N

NNNNNNNNNNN

ZERO

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

power meter

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

preamp

control

Allows the displayed optical power level for the trace and power

meter

to

be

specied

adjusted,

by

the

user

using

.

Zeroes osets in the internal average power meter.

Accesses the power meter softkey functions.

A

ccesses

the

preamplier

control softkeys.

a

known

drive

optical

voltage

for

noise

input power level,

gure

Preselector

Functions

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

C6DAC SEARCH

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CENTER DELTA

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESEL CENTER

N

NNNNNNNNNNNNNNNNNNNNNNNNN

PRESEL

DAC

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESEL HYS

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESEL On Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESEL PARTIAL

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESEL PEAK

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

pre-select

Places the DAC search values into trace C.

Adjusts the delta value for performing preselector centering.

Performs preselector centering.

Enters

corresponding

a

value

into the preselector DAC for the frequency range

to

the

frequency at the marker.

Compensates for hysteresis in the preselector lter.

Bypasses the preselector and low-pass lter.

Adjusts the tracking of the preselector lter.

Adjusts the tracking of the preselector lter to yield maximum

amplitude accuracy at the active marker position.

Accesses the softkeys that control the preselector functions.

3-14 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Programming-Related Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

66

Mode On Off

Enables

use of HP 8566B spectrum analyzer programming

commands

.

NNNNNNNNNNNNNNNNNNNNNNN

ANY

CHR

Enters

an

ASCII

character

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CLEAR TO END

Deletes characters on the data line from the entry window to end

of data line.

N

NNNNNNNNNNNNNNNNNN

COMMAND

A

ccesses

a

set of editing functions which may be used to compose

and execute short programming routines.

NNNNNNNNNNNNNN

CONT

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

DEBUG FAST

Resumes

program

operation.

Activates a fast debugging routine that executes the program

quickly and is useful for trapping errors.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEBUG On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DEBUG SLOW

Activates debugging of user-dened functions that have been

stored

in

internal

memory

.

Activates a slow debugging routine that executes the program

slowly to allow monitoring of each command execution, much like

N

NNNNNNNNNNNNNNNNNNNNNNNNN

DELETE

CHAR

stepping

Deletes

data

through

individual

line

.

a

program

characters

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DELETE

or...

Selects

on

the

replacement-editing

data

line

at

the

bottom

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ENTER COMMAND

Executes the contents of the data line when it contains properly

constructed programming-command statements.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

INSERT

or...

Selects

data

line

the

delete-editing

at

the bottom of the display.

function for the programming text on the

NNNNNNNNNNNNNNNNN

PAUSE

Suspends program operation.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

REPLACE or...

Selects the insert-editing function for the programming text on the

data line at the bottom of the display.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT CHAR

Enters into the data line any character listed in the character list,

which appears at the left side of the display when

pressed.

NNNNNNNNNNNNNNNNN

SPACE

Inserts a space into the programming text on the data line

NNNNNNNNNNNNNN

STEP

Executes each successive program command, one at a time.

NNNNNNNNNNNNNNNNN

debug

Accesses the program-debugging softkey functions.

into

on

the

a

computer

at

the

function

of

the

data

entry

display

line

.

window position on the

for

the

programming

.

NNNNNNNNNNNNNNNNNNNNNNN

COMMAND

.

text

is

SoftKey Quick Reference 3-15

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Service-Related Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

ANALYZR

TEST

Initiates

a self-test routine.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BLOB On Off

Executes a function that draws a blob that moves around the

display.

NNNNNNNNNNNNNNNNNNNN

CANCEL

Cancels the various memory-erase operations.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CONFIRM RESTART

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DETECTR

NNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

GND

AUT

ERASE ALL

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LCL

OSC

START

Conrms that you really want to perform a restart.

Grounds

internal

ADC input for troubleshooting.

Erases all user memory.

Sets

the

start

oscillator

frequency

source

.

of

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

LCL

OSC

STOP

Sets

the

oscillator

stop frequency of the sweep for an HP 70900B local

source

.

NNNNNNNNNNNNNNNNNNNNNNN

RESTART

Breaks all links and does a system reconguration.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ROM VERSION

Displays the date code of the local oscillator read-only memory

(ROM) chip.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

SERVICE

REQUEST

Enables

the

status-byte

service request mode by setting the message bit in the

register

true.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

WARNING On Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

ERASE/RESTART

Enables or disables warning messages from being displayed on the

display

.

Accesses erase/restart softkey functions.

the sweep for an HP 70900B local

Signal-Detection Functions

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CPL DET On Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

DET SEL LOG V

Control the coupling between LG, LN, and DETSEL.

Selects the hardware detector used for trace data (LOG or V).

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DETECTR AutoMan

N

NNNNNNNNNNNNNNNNN

GROUND

Activates normal detection.

Grounds the video detector.

NNNNNNNNNNNNNNNNNNNN

NEG PK

Displays the minimum signal level detected during each sample

interval.

NNNNNNNNNNNNNNNNNNNN

NORMAL

Chooses between positive- and negative-peak values, according to

the Rosenfell algorithm, which tests to see if a response rises and

falls in the sampling interval.

NNNNNNNNNNNNNNNNNNNN

POS PK

Displays the maximum signal level detected during each sample

interval.

NNNNNNNNNNNNNNNNNNNN

SAMPLE

Displays the instantaneous signal level detected at the beginning of

the sample period.

NNNNNNNNNNNNNNNNNNNNNNN

detectr

Accesses the signal-detection mode softkeys.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

log/lin detectr

Accesses additional signal-detection mode softkeys.

3-16 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Signal-Identication Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

IMAGE

N

IMAGE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

IMAGE

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N START

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

STOP

SHIFT

SIG ID -> CF

Determines

responses

harmonic

Determines

responses

harmonic

Selects

the frequency range for possible image or harmonic

by selecting the lowest and highest local oscillator

used for mixing, according to the tuning equation below.

the

frequency

by

selecting

used

for

the

shift-identication

the

mixing,

Places the active marker on the identied real signal and centers it

on the display.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SIG

ID

AMPTD

1

Species

signals

the

tested

amplitude

as

its image or harmonic.

dierence between the marked signal and

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SIG ID MAN OFF

Selects automatic or manual mode. Its preset state is automatic

mode

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SIGNAL IDENT

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

sig id options

Executes a signal-identication routine using either the image or

shift

method.

Accesses the signal-identication softkey functions.

range

for

possible image or harmonic

lowest

and highest local oscillator

according to the tuning equation below.

or

image-identication

methods

.

Its

Signal-P

ath

Functions

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

COUPLNG

AC

DC

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

EXT IF On Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

EXT VID FM IQ

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PATHLOK On Off

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

select

N

select

adc

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

input

A

ctivates

ac

or

dc

coupling

for

the

spectrum

analyzer

Switches the IF signal path.

Controls the external video switch (if present).

Species the signal path through the spectrum analyzer.

Switches

A

ccesses

between

a

softkey

the

internal

and

external video-processing paths.

menu that lists the available input ports.

input.

SoftKey Quick Reference 3-17

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Sweep and Trigger Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

CONT

SWEEP

Sweeps

the measurement range when the trigger conditions are

met.

NNNNNNNNNNN

EXT

Synchronizes

the

sweep

with

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

HYS LEVEL

Denes the change in video-signal level required for video

triggering.

N

NNNNNNNNN

LINE

Synchronizes

the

sweep

with the power-line frequency.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

OVERSWP On Off

Allows faster sweep times (up to ve times faster) when specied

accuracy is not required and the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

SINGLE SWEEP

Initiates one sweep if the trigger conditions are met.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SWPTIME AutoMan

Species the rate that the analyzer sweeps the current

measurement range.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

TRIGGER

N

NNNNNNNNNNNNNNNNNNNNNNNNNN

VIDEO

N

NNNNNNNNN

VIDEO

FREE

LEVEL

Triggers

circuitry

Species

Triggers

the

.

the

sweep

trigger

sweep

with

the

level

for

with

the detected, ltered, input signal (video).

an

external

UNCAL

spectrum

signal.

indicator is undesirable.

analyzer

,

internal-triggering

the video softkey function.

3-18 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Tracking Generator Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

A-C

->A On Off

Subtracted

stored

in trace A.

trace C from trace A, point by point, and the result is

NNNNNNNNNNNNNNNNNNNNNNN

ALC

ALT

Connects

internal

the

automatic

detector

level

.

NNNNNNNNNNNNNNNNNNNNNNN

ALC EXT

Connects the automatic level control of the source to an external

negative detector (0 to 100 millivolts).

NNNNNNNNNNNNNNNNNNNNNNN

ALC NRM

Connects the automatic level control of the source to the normal

internal detector of the tracking generator.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AM % On Off

Sets and controls the amplitude-modulation percentage (depth) of

the source.

N

NNNNNNNNNNNNNNNNNNNNN

N

AM FREQ

Selects the internal amplitude-modulation frequency of the source.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AM INT EXT

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AVERAGE SHRT->C

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

BLANKNG

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PWR

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PWR

STP

SWP

On

Off

AutoMan

On

Off

Selects the amplitude modulation input.

Works in conjunction with the

mismatches

Turns

Sets

the

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PWR SWP On Off

W

orks

and

o

blank

power

in

conjunction

directivity

source

.

step-size

, and

with the

for the

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC PWR OFFSET

the amplitude level of the source output.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC

ATN

AutoMan

Allows

RF

tracking

the

source

attenuator

generator to be automatically or manually changed.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC OSC INT EXT

Selects the 21.4 MHz oscillator that mixes with the spectrum

analyzer local oscillator to produce the source output at the RF

OUTPUT port on the tracking generator.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC PWR OFFSET

Allows a user-determined value to be added to the requested

source-power output-level readout, which enables the user to

calibrate the source output.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC PWR On Off

Sets the source power level at the RF OUTPUT

panel of the tracking generator

control

N

of

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

STORE OPEN->C

eects

for

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC

PWR

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SRC

PWR

level

of

an

.

the

source

reection

On

Off

softkeys.

On

Off

HP

70300A

to

an alternate

softkey to reduce

measurements

,

softkey to sweep

>

port on the front

.

SoftKey Quick Reference 3-19

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

Tracking Generator Functions | Continued

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

STM

RSP MIL Cpl

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

STM

RSP

On

Off

Optimizes

but

also allows system gains to change (such as with a reference

level

Optimizes

system operation for stimulus-response measurements,

change).

system

operation

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

STORE OPEN ->C

Works in conjunction with the

reduce

measurements

mismatches

.

and

directivity

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

STORE THRU->B

Is used in the normalization process for transmission

measurements.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

TRACKNG ADJUST

Allows you to adjust the tracking of the tracking generator output

manually with the sweeping of the local oscillator, by centering the

signal response in the IF resolution bandwidth lters.

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

TRACKNG PEAK

Maximizes the amplitude of the active trace at the point indicated

by the active marker.

N

NNNNNNNNNNNNNNNNNN

alc/track

Selects

the

functions

automatic

for

the

level

tracking

NNNNNNNNNNNNNNNNNNNNNNN

modultn

N

NNNNNNNNNNNNNNNN

power

N

NNNNNNNNNNNNNNNNNNNNNNNNN

trace

N

NNNNNNNNNNNNNNNNNNNNNN

N

track

norm

gen

A

ccesses

the

modulation

softkey

Accesses the source power softkey functions.

A

ccesses

A

ccesses

the

trace-normalization softkey functions.

the tracking-generator softkey functions.

for

stimulus-response

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

AVERAGE SHRT->C

eects

control

generator

type

module

functions

measurements.

softkey to

for

reection

and

tracking adjustments

.

3-20 SoftKey Quick Reference

Table 3-1. SoftKey Quick Reference, Organized by Function (continued)

Menu Key Denition

User-Dened Functions

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

DEFINE

USR KEY

Incorporates

be

used to erase softkeys individually from the user-softkey menu.

menu softkeys into the user-softkey menu, and may

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DISPOSE

USER

Erases

a

le

containing

a

menu

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

EDIT FUNCDEF

Displays a user-dened function on the data line for editing.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRESET USER

Restores the default menu for the user softkeys, which consists of

the following softkeys:

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RECALL USER

Clears the current menu of user softkeys, then loads the contents

of a user-softkey le into the user-softkey menu.

NNNNNNNNNNNNNNNNNNNNNNNNNNNN

N

SAVE USER

Stores the current menu of user softkeys in a user-softkey le.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

catalog & MSI

Lists the contents of the currently selected user memory, giving

names of entries, their size and type, and the amount of available

memory

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

execute

DLP

Displays

a

menu

of

softkeys

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

key control

Accesses the user-dened softkey functions.

that

of

user

execute

softkeys

user-dened

from user memory.

functions

.

SoftKey Quick Reference 3-21

Functional

A

denition

functional

of

groupings

Grouping

the

various

are:

Denitions

types

of

functions

are detailed in this section. The various

Amplitude

Functions

Amplitude-Correction Functions

Bandwidth

Calibration

Display

External-Mixer

Frequency

Functions

Instrument-State Functions

Lightwave Functions

Limit-Line Functions

Marker Functions

Memory-Related Functions

Power-Meter Functions

Preamplier

Preselector

Programming-Related

Service-Related

Signal-Detection

Functions

Signal-Identication Functions

Signal-Path Functions

Sweep and Trigger Functions

Trace-Processing Functions

Tracking-Generator Functions

User-Dened

Functions

Note

T

o

locate

pressed,

individual

see

the

softkey

softkeys that are accessible when the

menu maps in Chapter 2.

4

MENU

5

key

is

3-22 SoftKey Quick Reference

Functional

Grouping

Denitions

Amplitude Functions

The amplitude softkeys change the input attenuation and scale of the displayed amplitude

measurement results.

Amplitude-Correction Functions

The amplitude-correction functions enhance amplitude measurement accuracy. The user

can dene amplitude corrections for a specic frequency-measurement range and enter the

corrections through the front panel keyboard. The user-dened corrections do not aect

the system amplitude-correction factors. The user calculates the amplitude corrections for a

specic measurement. The amplitude and related frequency values are entered in a limit-line

table, using the limit-line softkeys. The user then converts the limit-line le into an amplitude

correction, using the softkeys described in this section.

The operation of the limit-line softkeys must be understood before using the softkeys described

in this section.

Bandwidth Functions

The bandwidth softkeys aect how the resolution bandwidths and video-bandwidths are

applied to an input signal.

Calibration Functions

The calibration softkeys are used to congure the system for calibration and perform the

calibration routines. The calibration routines can be selected and run individually.

F

or

a

and

lightwave

does

not

signal

require

analyzer

additional

,

the

lightwave

calibration.

signal

However

path

,

the

has

RF

been

calibrated

or

microwave

at the factory

signal

path

through

the HP 70810B lightwave section is calibrated using the functions provided in this section.

Display Functions

The display softkeys control the display of the graticule, screen annotation, display line, and

blanking of displayed trace information. Other display softkeys are used to display text created

by

the

user

in

the title line at the top of the display.

External-Mixer Functions

The external-mixer softkeys control the measurement range when an external mixer is used to

extend the spectrum analyzer frequency range. The softkeys select the measurement range and

bias the external-mixer gain. They also compensate for conversion loss at the input port of the

external mixer interface module.

The external-mixer softkeys are operational when the input to an external mixer interface

module (for example, an HP 70907A external mixer interface module) is active. Press the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

select input

softkey to access the menu of available input-related softkeys.

SoftKey Quick Reference 3-23

Functional

Grouping

Denitions

Frequency Functions

Instrument-State

The

instrument-state

Functions

softkeys

control

settings

for

specic

analyzer

functions and store the

settings in internal analyzer memory.

Press

a

list

4

INSTR

of

PRESET

the

instrument settings that are aected by instrument preset.

5

or

5

to

4

I-P

set

all

softkey settings to their preset state. See Appendix A for

Lightwave Functions

The lightwave softkeys provide the analyzer functions used for lightwave signal analysis.

The softkeys are present when a lightwave signal path has been selected using the softkeys

accessed by the

CAUTION

Limit-Line

The

limit-line

while

The

testing

the

test

parameters

into

functions

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

select input

softkey.

Inaccurate signal trace measurements can occur if HSWP IN/OUT on the

HP

70810B

70900B

lightwave section is not connected to HSWP IN/OUT on the

local oscillator source.

Functions

softkeys

analyzer

allow

the user to dene amplitude and frequency test parameters. The

compare

is

sweeping the measurement range.

trace

data to a set of amplitude and frequency test parameters

are stored in internal or external memory as limit-line les and recalled for

a

limit-line table.

Marker

The

Functions

marker softkeys allow the user to pinpoint and analyze portions of the signal trace. The

marker itself is a bright diamond- or square-shaped character positioned along the signal trace.

The marker softkeys are data-processing functions that mark areas of Traces A, B, or C for

signal identication, mathematical trace manipulation and data transfer.

3-24 SoftKey Quick Reference

Functional

Grouping

Denitions

Figure

3-1.

Marker-Peak Functions Analyze Trace Data

Memory-Related Functions

Memory

functions

Custom

using

data,

is

an

area

perform

functions

user-dened

variables

and

where

the

can

front

arrays

information

operations

also

be

created

panel

softkeys

of

data

can

be

for

memory

by

the user and stored in memory for later execution

or

an

for

data processing.

stored for future recall. The memory-related

storage

and retrieval.

external computer. Memory can also store trace

Power-Meter Functions

The

power-meter

average-power

signal

analyzer

softkeys

meter

have

control

.

Both

the HP 71400C lightwave signal analyzer and HP 71401C lightwave

an

HP 70810B lightwave section installed that contains an internal

the

adjustment, annotation readout, and calibration of a

average-power meter.

CAUTION

Inaccurate signal trace measurements can occur if HSWP IN/OUT on the

HP 70810B lightwave section is not connected to HSWP IN/OUT on the

HP 70900B local oscillator source

.

Preamplier Functions

The preamplier softkeys control the preamplier modules that are installed in the system.

SoftKey Quick Reference 3-25

Functional

Grouping

Denitions

Preselector Functions

The preselector functions are available when a preselector module or RF section with

preselector capabilities is installed in the system. To make preselected measurements,be

sure the input port on the preselector module is active. Select the active input port with the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

select input

softkey.

The analyzer may require recalibration for measurements made with another input port. Refer

to the \Calibration Functions" section in this chapter for more information.

Programming-Related

The

programming-related

panel,

troubleshooting

Functions

softkeys

programs

provide various functions for programming from the front

, and editing user-dened functions.

Service-Related Functions

The service-related softkeys provide various functions for checking analyzer operation, clearing

all instrument memory, and modifying the sweep range of the local oscillator.

Signal-Detection

Functions

The spectrum analyzer is an analog receiver that translates a detected analog signal into a

series of amplitude values, called elements. An interval of time passes while the analyzer

sweeps and detects the analog signal. If one sweep of trace data is divided into 800 increments

of time, the spectrum analyzer produces 800 trace elements.

The signal-trace detection functions determine how the analyzer chooses one amplitude value

for

each

element

from

the

many

amplitude

values

detected

during

one

of

these

intervals

of

time.

Signal-Identication

The

signal-identication

Two

signal-identication

Functions

functions

methods

distinguish

are

available

real

signals

,

called shift and image. The image and shift

from image or harmonic responses.

methods test a signal that is marked by the active marker. If a marker is not present, they

mark the highest signal peak automatically before beginning the identication process.

Signal-Path Functions

The signal-path functions select

the input port and its type of coupling, ac or dc. They also

control the signal path through and between modules installed in the system.

Sweep and Trigger Functions

The sweep and trigger functions adjust sweep time and signal triggering. Whenever a sweep is

in progress, the \MEASURE" indicator on the front of the HP 70900B local oscillator source is

lit. The indicator is o between sweeps and frequency bands.

3-26 SoftKey Quick Reference

Functional

Grouping

Denitions

Trace-Processing Functions

The trace-processing functions detect, store, and manipulate trace information.

The analyzer records measurement results in any of three traces (Trace A, B, or C) as it sweeps

through the measurement range. These traces may be swept simultaneously or individually.

Tracking-Generator Functions

The tracking-generator softkeys control the functions of a tracking-generator module.

User-Dened

The

user-dened

have

been

created

internal

The

the

or

user

can

softkeys

Functions

functions

external

create

to

the

by

the

memory

provide

user

, activated to perform a user-dened task, or deleted from memory.

le-management

.

User-dened

functions can be placed in user memory from an

softkey functions for unique or specialized measurement tasks and assign

user-softkey menu. The user-dened functions are created using the

softkeys described in \Programming Functions".

capabilities

for

softkey

functions that

SoftKey Quick Reference 3-27

Softkey Descriptions

a

aaaaaaaaaaaaaa

1/T

(inverse sweep-time) describes the marker position in terms of the inverse of the marker

sweep-time position.

Functional Type:

marker

Firmkey Access:

NNNNNNNNNNNNNNNNNNNN

Marker

4

Preset

State:

O

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

a

3-DIMEN On Off

Turn on or o the three-dimensional trace display capability.

The

THREED

three-dimensional

1

and

6

o.

It

is

command

50,

or

when you turn the function on. This value is retained if you turn the function

not

changed until you enter a dierent value.

display

sets

the

function.

number of previous traces to be displayed simultaneously as a

The

function

is activated when you enter a value between

Functional Type:

active-trace processing

Firmkey Access:

NNNNNNNNNNNNNNNNN

BWSwp

Preset State:

O

Softkey Descriptions 4-1

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

66

MODE

On

Off

(8566B

function

spectrum

and

Mode)

sets

remote

enables

several

analyzer

marker

use

of

HP

system

as

closely

8566B

parameters

as

possible

spectrum analyzer programming commands.The

to

emulate

.

For example, the trace length is set to 1001 points,

the remote operation of HP 8566B

and trace queries are switched to HP 8566B spectrum analyzer units.

Functional Type:

programming-related and service-related

Firmkey

Access:

NNNNNNNNNNNNNN

Misc

Preset State:

O, Not aected by

a

aaaaaaaaaaaaaaaaaaaaaaaaaaaa

4IP5

.

A<-A+B

adds traces A and B point by point, then stores the results in trace A.

Functional Type:

active-trace processing

Firmkey Access:

NNNNNNNNNNNNNNNNN

BWSwp

Preset

State:

O

4-2 Softkey Descriptions

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

A-B->A

On

Off

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

A-B+DL

On

Off

subtracts

continuous

trace

and

B

from

occurs

trace

with

Functional Type:

active-trace processing

Firmkey

A

ccess:

NNNNNNNNNNNNNNNNN

BWSwp

Preset State:

O

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

a

A-B+DL

subtracts

stores

the

NNNNNNNNNNNNNN

Press

Misc

See

the

On Off

trace

B

from

results

in

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DSP

,

N

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

DSP

LIN

On

trace

On

Off

A

point

by point, then stores the results in trace A. The process is

each

sweep

.

A

point

by

point,

A.

The process is continuous and occurs with each sweep.

Off

to

position

softkey

description.

the

adds

display

the

value

line

of

the

display line, and then

.

Functional Type:

active-trace processing

Firmkey Access:

NNNNNNNNNNNNNNNNN

BWSwp

Preset State:

O

Softkey Descriptions 4-3

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A-C

(store

and

improves

trace

the

A

->A

Trace

result

is

On

Off

A

minus

is

measurements

stored

Trace

in

by

trace

in clear-write mode when this function is executed, the function is continuous.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

See

the

CLEAR

WRT

A

softkey

Functional Type:

tracking generator

C

into

Trace A) Trace C is subtracted from trace A, point by point,

A. This math function, used in the normalization process,

allowing

errors

to

be

subtracted out before connecting a device.If

description.

Firmkey

A

ccess:

NNNNNNNNNNNNNNNNN

State

Preset State:

O

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ACTIVE

selects

a

MARKER

number

from

1

o.

Functional Type:

marker

Firmkey Access:

N

NNNNNNNNNNNN

Marker

to

5

for the active marker. If zero is selected, the markers are turned

Preset State:

O

4-4 Softkey Descriptions

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ALC

ALT

N

ALC

N

NNNNNNNNNNNNN

EXT

(alternate

alternate

used

The

using

automatic

internal

for

measurements

alternate

NNNNNNNNNNNNNNNNNNNNNNN

ALC

the

detector

ALT

softkey

level

control)

.

The

between

The

automatic

alternate

20

Hz

detector

and

level

at the internal 3.6 GHz amplier is typically

10 MHz.

can be used above 10 MHz, but better output atness can be obtained

for

measurements

above

10

can be made with the alternate detector by normalizing.

NNNNNNNNNNNNNNNNNNNNNNN

Use the

Functional

tracking

ALC ALT

Type:

generator

softkey for wideband applications (for example, 1 kHz to 100 MHz).

Firmkey Access:

NNNNNNNNNNNNNNNNN

State

Preset State:

O

a

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ALC EXT

control of the source is connected to an

MHz

.

However

, accurate measurements

(external

The

(0

to

automatic

100

millivolts). An external detector can be used to level the output of an amplier or

level

control

control)

of the source is connected to an external negative detector

splitter. With external detectors, use the ALC EXT INPUT connector on the front panel of the

tracking generator.

Functional Type:

tracking generator

Firmkey Access:

NNNNNNNNNNNNNNNNN

State

Preset State:

O

Softkey Descriptions 4-5

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ALC

NRM

(normal

normal

generator

Note

automatic

internal

RF

OUTPUT

level

detector

The

frequencies

Functional

tracking

Type:

generator

Firmkey Access:

N

NNNNNNNNNNNNNNNN

State

Preset

State:

On

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alc/track

control)

of

is

normally

the

The

automatic

tracking

used

Output Unleveled

less

than

10 MHz.

level

control of the source is connected to the

generator

for

error message may occur if

. The normal internal detector at the tracking

measurements between 10 MHz and 2.9 GHz.

N

NNNNNNNNNNNNNNNNNNNNNN

ALC NRM

is executed for

(automatic

tracking

level

control

adjustments

Functional Type:

tracking

Firmkey

N

NNNNNNNNNNNNNNNN

generator

A

ccess:

State

Preset State:

Not aected by

5

.

4

IP

and

tracking

functions

for

the

adjustment)

tracking

selects

the

automatic

generator module.

level

control

type

and

4-6 Softkey Descriptions

Agilent 70903A Users Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Figures

Tables

Overview

SoftKey Quick Reference

Softkey Descriptions