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

Agilent 70903A Users Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Figures

Tables

Overview