Aeroflex 3251/00 3250 Series Users Manual

Contents

SPECTRUM ANALYZERS

3250 Series

Operating Manual

Document part no. 46892/974

SPECTRUM ANALYZERS

3250 SERIES

Operating Manual

3251 1 kHz–3.0 GHz
3252 1 kHz–8.0 GHz
3253 1 kHz–13.2 GHz
3254 1 kHz–26.5 GHz

Somel of the features detailed in this manual may not be available in every model.

© Aeroflex International Ltd. 2009

No part of this document may be reproduced or transmitted in any form

or by any means, electronic or mechanical, including photocopying,

or recorded by any information storage or retrieval system,
without permission in writing by Aeroflex International Ltd.

(hereafter referred to throughout the document as ‘Aeroflex’).

Manual part no. 46892/974 (PDF version)

Based on Issue 1 of the printed manual

20 April 2009

This manual explains how to use the 3250 Series Spectrum Analyzers.

Intended audience

People carrying out work relating to the design and manufacture of RF and microwave
sub-systems and modules, or the installation and maintenance of those systems.

Familiarity with the terms used in RF and microwave measurements is assumed.

Structure

Chapter 1

Provides an introduction to the 3250 Series instruments. Also includes complete

performance data and lists the versions, options and accessories available.

Chapter 2

Installation details, including location and safety observations.

Chapter 3

Describes connections to the front and rear panels of the instrument.

About this manual

Chapter 4

Description of all the menus available on the instrument.

Chapter 5

Describes operation of the instrument.

Chapter 6

Performance test procedures to verify that the instrument is functioning correctly.

Chapter 7

Describes cleaning, storage and transportation of the instrument.

Chapter 8

Restoring the operating system.

Appendix A

Measurement guide, with details of how to perform measurements such as noise,

low-level signals, and distortion products.

Document conventions

The following conventions apply throughout this manual:

CAPS Capitals are used to identify names of controls and panel markings.
[CAPS]

[Italics] Italics in square brackets indicate soft key titles.

Capitals in square brackets indicate hard key titles.

Associated publications

• 3250 Series Programming Manual

(Printed version 46882/975, PDF version 46892/975)

ii

Contents

Precautions........................................................................................................................................................iv

Précautions...................................................................................................................................................... vii

Vorsichtsmaßnahmen........................................................................................................................................x

Precauzioni..................................................................................................................................................... xiii

Precauciones....................................................................................................................................................xvi

Chapter 1 GENERAL INFORMATION .................................................................................................. 1-1

Chapter 2 PREPARING FOR USE........................................................................................................... 2-1

Chapter 3 PANEL DESCRIPTION........................................................................................................... 3-1

Chapter 4 MENU TREE............................................................................................................................. 4-1

Chapter 5 OPERATING PROCEDURES................................................................................................5-1

Instrument in spectrum analysis measurement mode............................................................ 5-8

Instrument in phase noise measurement mode..................................................................... 5-69

Chapter 6 PERFORMANCE TESTS........................................................................................................ 6-1

Chapter 7 STORAGE AND TRANSPORTATION................................................................................. 7-1

Chapter 8 SYSTEM RESTORATION...................................................................................................... 8-1

Appendix A MEASUREMENT GUIDE................................................................................................... A-1

iii

WARNING

Symbols

PRECAUTIONS

Precautions

These terms have specific meanings in this manual:

information to prevent personal injury.
information to prevent damage to the equipment.
important general information.

The meaning of hazard symbols appearing on the equipment and in the documentation is as
follows:

Symbol Description

Refer to the operating manual when this symbol is marked on
the instrument. Familiarize yourself with the nature of the
hazard and the actions that may have to be taken.

Dangerous voltage

Toxic hazard

Static sensitive components

General conditions of use

This product is designed and tested to comply with the requirements of IEC/EN61010-1 ‘Safety
requirements for electrical equipment for measurement, control and laboratory use’, for Class I
portable equipment and is for use in a pollution degree 2 environment. The equipment is designed
to operate from an installation category II supply.

Equipment should be protected from the ingress of liquids and precipitation such as rain, snow,
etc. When moving the equipment from a cold to a hot environment, it is important to allow the
temperature of the equipment to stabilize before it is connected to the supply to avoid
condensation forming. The equipment must only be operated within the environmental conditions
specified in Chapter 1 in the Operating Manual, otherwise the protection provided by the
equipment may be impaired.

This product is not approved for use in hazardous atmospheres or medical applications. If the
equipment is to be used in a safety-related application, e.g. avionics or military applications, the
suitability of the product must be assessed and approved for use by a competent person.

iv

PRECAUTIONS

WARNING

Electrical hazards (AC supply voltage)

WARNING

Fire hazard

WARNING

This equipment conforms with IEC Safety Class I, meaning that it is provided with a protective
grounding lead. To maintain this protection the supply lead must always be connected to the
source of supply via a socket with a grounded contact.

Be aware that the supply filter contains capacitors that may remain charged after the equipment is
disconnected from the supply. Although the stored energy is within the approved safety
requirements, a slight shock may be felt if the plug pins are touched immediately after removal.

Do not remove instrument covers as this may result in personal injury. There are no user­serviceable parts inside.

Refer all servicing to qualified personnel. See list of Service Centers at rear of manual.

Make sure that only fuses of the correct rating and type are used for replacement.
If an integrally fused plug is used on the supply lead, ensure that the fuse rating is commensurate

with the current requirements of this equipment.

Toxic hazards

Some of the components used in this equipment may include resins and other materials which give
off toxic fumes if incinerated. Take appropriate precautions, therefore, in the disposal of these
items.

WARNING

Beryllium copper

WARNING

Some mechanical components within this instrument are manufactured from beryllium copper.
This is an alloy with a beryllium content of approximately 5%. It represents no risk in normal use.

The material should not be machined, welded or subjected to any process where heat is involved.
It must be disposed of as “special waste”.
It must NOT be disposed of by incineration.

Lithium

A Lithium battery (or a Lithium battery contained within an IC) is used in this equipment.
As Lithium is a toxic substance, the battery should in no circumstances be crushed, incinerated or

disposed of in normal waste.
Do not attempt to recharge this type of battery. Do not short circuit or force discharge since this

might cause the battery to vent, overheat or explode.

v

PRECAUTIONS

WARNING

Tilt facility

When the equipment is in the tilt position, it is advisable, for stab ility reasons, not to stack other
equipment on top of it.

Static sensitive components

This equipment contains static sensitive components which may be damaged by handling — refer
to the Service Manual for handling precautions.

Precision connector

The precision microwave connectors fitted to this equipment may be damaged by mating with a
non-precision type. Damage to the connector may also occur if the connector interface parameters
are not within specification. The connector should be checked with the appropriate gauging tool.

Suitability for use

This equipment has been designed and manufactured by Aeroflex to perform measurements on RF
and microwave components and systems.

If the equipment is not used in a manner specified by Aeroflex, the protection provided by the
equipment may be impaired.

Aeroflex has no control over the use of this equipment and cannot be held responsible for events
arising from its use other than for its intended purpose.

vi

PRECAUTIONS

Précautions

Les termes suivants ont, dans ce manuel, des significations particulières:

WARNING

contient des informations pour éviter toute blessure au personnel.

contient des informations pour éviter les dommages aux équipements.

contient d’importantes informations d’ordre général.

Symboles signalant un risque

La signification des symboles de danger apparaissant sur l'équipement et dans la documentation
est la suivante:

Symbole Nature du risque

Reportez-vous au manuel d'utilisation quand ce symbole
apparaît sur l'instrument. Familiarisez-vous avec la nature du
danger et la conduite à tenir.

Tension dangereuse

Danger produits toxiques

Conditions générales d’utilisation

Ce produit a été conçu et testé pour être conforme aux exigences des normes CEI/EN61010-1
“Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire”, pour
des équipements Classe I portables et pour une utilisation dans un environnement de pollution de
niveau 2. Cet équipement est conçu pour fonctionner à partir d’une alimentation de catégorie II.

Cet équipement doit être protégé de l’introduction de liquides ainsi que des précipitations d’eau,
de neige, etc... Lorsqu’on transporte cet équipement d’un environnement chaud vers un
environnement froid, il est important de laisser l’équipement se stabiliser en température avant de
le connecter à une alimentation afin d’éviter toute formation de condensation. L'appareil doit être
utilisé uniquement dans le cadre des conditions d'environnement spécifiées au chapitre 1
‘Performance data’ du manuel d'utilisation, toute autre utilisation peut endommager les systèmes
de protection.

Ce produit n’est pas garanti pour fonctionner dans des atmosphères dangereuses ou pour un usage
médical. Si l'équipement doit être utilisé pour des applications en relation avec la sécurité, par
exemple des applications militaires ou aéronautiques, la compatibilité du produit doit être établie
et approuvée par une personne compétente.

vii

PRECAUTIONS

WARNING

Sécurité électrique (tension d’alimentation alternative)

WARNING

Cet appareil est protégé conformément à la norme CEI de sécurité Classe 1, c’est-à-dire que sa
prise secteur comporte un fil de protection à la terre. Pour maintenir cette protection, le câble
d’alimentation doit toujours être branché à la source d’alimentation par l’intermédiaire d’une prise
comportant une borne de terre.

Notez que les filtres d’alimentation contiennent des condensateurs qui peuvent encore être chargés
lorsque l’appareil est débranché. Bien que l’énergie contenue soit conforme aux exigences de
sécurité, il est possible de ressentir un léger choc si l’on touche les bornes sitôt après
débranchement.

Ne démontez pas le capot de l'instrument, car ceci peut provoquer des blessures. Il n'y a pas de
pièces remplaçables par l'utilisateur à l'intérieur.

Faites effectuer toute réparation par du personnel qualifié. Contacter un des Centres de
Maintenance Internationaux dans la liste jointe à la fin du manuel.

Risque lié au feu

Lors du remplacement des fusibles vérifiez l’exactitude de leur type et de leur valeur.
Si le câble d’alimentation comporte une prise avec fusible intégré, assurez vous que sa valeur est
compatible avec les besoins en courant de l’appareil.

WARNING

Danger produits toxiques

WARNING

Bronze au béryllium

WARNING

Lithium

Certains composants utilisés dans cet appareil peuvent contenir des résines et d’autres matières qui
dégagent des fumées toxiques lors de leur incinération. Les précautions d’usages doivent donc
être prises lorsqu’on se débarrasse de ce type de composant.

Dans cet équipement,certaines pièces mécaniques sont à base de bronze au béryllium. Il s'agit d'un
alliage dans lequel le pourcentage de béryllium ne dépasse pas 5%. Il ne présente aucun danger en
utilisation normale.
Toutefois, cet alliage ne doit pas être travaillé, soudé ou soumis à un processus qui implique
l'utilisation d'une source de chaleur.
En cas de destruction, il sera entreposé dans un container spécial. IL ne devra pas être détruit par
incinération

Une pile au Lithium ou un CI contenant une pile au Lithium est utilisé dans cet équipement.
Le Lithium étant une substance toxique, il ne faut en aucun cas l’écraser, l’incinérer ou le jeter
avec des déchets normaux.
N’essayez pas de recharger ce type de pile. Ne court-circuitez pas ou ne forcez pas la décharge de
la pile car cela pourrait causer une fuite, une surchauffe ou une explosion.

WARNING

Position inclinée

Lorsque l’appareil est dans une position inclinée, il est recommandé, pour des raisons de stabilité,
de ne pas y empiler d’autres appareils.

viii

Utilisation

PRECAUTIONS

Cet équipement a été conçu et fabriqué par Aeroflex pour effectuer des mesures sur des
composants et des systèmes RF et hyperfréquences

La protection de l'équipement peut être altérée s'il n'est pas utilisé dans les conditions spécifiées
par Aeroflex.
Aeroflex n'a aucun contrôle sur l'usage de l'instrument, et ne pourra être tenu pour responsable en
cas d'événement survenant suite à une utilisation différente de celle prévue.

ix

PRECAUTIONS

Vorsichtsmaßnahmen

Diese Hinweise haben eine bestimmte Bedeutung in diesem Handbuch:

WARNING

dienen zur Vermeidung von Verletzungsrisiken.
dienen dem Schutz der Geräte.
enthalten wichtige Informationen.

Gefahrensymbole

Die Bedeutung der Gefahrensymbole auf den Geräten und in der Dokumentation ist wie folgt:

Symbol Gefahrenart

Beziehen Sie sich auf die Bedienungsanleitung wenn das
Messgerät mit diesem Symbol markiert ist. Machen Sie sich
mit der Art der Gefahr und den Aktionen die getroffen
werden müssen bekannt.

Gefährliche Spannung

Warnung vor giftigen Substanzen

Allgemeine Hinweise zur Verwendung

Dieses Produkt wurde entsprechend den Anforderungen von IEC/EN61010-1
“Sicherheitsanforderungen für elektrische Ausrüstung für Meßaufgaben, Steuerung und
Laborbedarf”, Klasse I transportabel zur Verwendung in einer Grad 2 verunreinigten Umgebung,
entwickelt und getestet. Dieses Gerät ist für Netzversorgung Klasse II zugelassen.

Das Gerät sollte vor dem Eindringen von Flüssigkeiten sowie vor Regen, Schnee etc. geschützt
werden. Bei Standortänderung von kalter in wärmere Umgebung sollte das Gerät wegen der
Kondensation erst nach Anpassung an die wärmere Umgebung mit dem Netz verbunden werden.
Das Gerät darf nur in Umgebungsbedingungen wie im Kapitel 1 ‘Lesitungstdaten (Performance
data)’ der Bedienungsanleitung beschrieben, betrieben werden; ansonsten wird der vom Gerät
vorgesehene Schutz des Anwenders beeinträchtigt.

Dieses Produkt ist nicht für den Einsatz in gefährlicher Umgebung (z.B. Ex-Bereich) und für
medizinische Anwendungen geprüft. Sollte das Gerät für den Einsatz in sicherheitsrelevanten
Anwendungen wie z.B. im Flugverkehr oder bei militaerischen Anwendungen vorgesehen sein, so
ist dieser von einer für diesen Bereich zuständigen Person zu beurteilen und genehmigen.

x

PRECAUTIONS

WARNING

Elektrische Schläge (Wechselspannungsversorgung)

WARNING

Das Gerät entspricht IEC Sicherheitsklasse 1 mit einem Schutzleiter nach Erde. Das Netzkabel
muß stets an eine Steckdose mit Erdkontakt angeschlossen werden.

Filterkondensatoren in der internen Spannungsversorgung können auch nach Unterbrechung der
Spannungszuführung noch geladen sein. Obwohl die darin gespeicherte Energie innerhalb der
Sicherheitsmargen liegt, kann ein leichter Spannungsschlag bei Berührung kurz nach der
Unterbrechung erfolgen.

Öffnen Sie niemals das Gehäuse der Geräte das dies zu ernsthaften Verletzungen führen kann. Es
gibt keine vom Anwender austauschbare Teile in diesem Gerät.

Lassen Sie alle Reparaturen durch qualifiziertes Personal durchführen. Eine Liste der
Servicestellen finden Sie auf der Rückseite des Handbuches.

Feuergefahr

Es dürfen nur Ersatzsicherungen vom gleichen Typ mit den korrekten Spezifikationen
entsprechend der Stromaufnahme des Gerätes verwendet werden.

WARNING

Warnung vor giftigen Substanzen

In einigen Bauelementen dieses Geräts können Epoxyharze oder andere Materialien enthalten sein,
die im Brandfall giftige Gase erzeugen. Bei der Entsorgung müssen deshalb entsprechende
Vorsichtsmaßnahmen getroffen werden.

WARNING

Beryllium Kupfer

WARNING

Lithium

In diesem Gerät sind einige mechanische Komponenten aus Berylium Kupfer gefertigt. Dies ist
eine Verbindung welche aus einem Berylliumanteil von ca. 5 % besteht. Bei normaler
Verwendung besteht kein Gesundheitsrisiko.

Das Metall darf nicht bearbeitet, geschweißt oder sonstiger Wärmebehandlung ausgesetzt werden.
Es muß als Sondermüll entsorgt werden.

Es darf nicht durch Verbrennung entsorgt werden.

Eine Lithium Batterie oder eine Lithium Batterie innerhalb eines IC ist in diesem Gerät eingebaut.
Da Lithium ein giftiges Material ist, sollte es als Sondermüll entsorgt werden.
Diese Batterie darf auf keinen Fall geladen werden. Nicht kurzschließen, da sie dabei überhitzt

werden und explodieren kann.

WARNING

Schrägstellung

Bei Schrägstellung des Geräts sollten aus Stabilitätsgründen keine anderen Geräte darauf gestellt
werden.

xi

Eignung für Gebrauch

Dieses Gerät wurde von Aeroflex entwickelt und hergestellt um Messungen an HF- und
Mikrowellenkomponenten und -Systemen durchzuführen

Sollte das Gerät nicht auf die von Aeroflex vorgesehene Art und Weise verwendet werden, kann
die Schutzfunktion des Gerätes beeinträchtigt werden.

Aeroflex hat keinen Einfluß auf die Art der Verwendung und übernimmt keinerlei Verantwortung
bei unsachgemässer Handhabung.

PRECAUTIONS

xii

PRECAUTIONS

Precauzioni

Questi termini vengono utilizzati in questo manuale con significati specifici:

WARNING

riportano informazioni atte ad evitare possibili pericoli alla persona.
riportano informazioni per evitare possibili pericoli all'apparecchiatura.
riportano importanti informazioni di carattere generale.

Simboli di pericolo

Il significato del simbolo di pericolo riportato sugli strumenti e nella documentazione è il
seguente:

Simbolo

Tipo di pericolo

Fare riferimento al manuale operativo quando questo
simbolo è riportato sullo strumento. Rendervi conto della
natura del pericolo e delle precauzioni che dovrete prendere.

Tensione pericolosa

Pericolo sostanze tossiche

Condizioni generali d’uso

Questo prodotto è stato progettato e collaudato per rispondere ai requisiti della direttiva
IEC/EN61010-1 ‘Safety requirements for electrical equipment for measurement, control and
laboratory use’ per apparati di classe I portatili e per l’uso in un ambiente inquinato di grado 2.
L’apparato è stato progettato per essere alimentato da un alimentatore di categoria II.

Lo strumento deve essere protetto dal possibile ingresso di liquidi quali, ad es., acqua, pioggia,
neve, ecc. Qualora lo strumento venga portato da un ambiente freddo ad uno caldo, è importante
lasciare che la temperatura all’interno dello strumento si stabilizzi prima di alimentarlo per evitare
formazione di condense. Lo strumento deve essere utilizzato esclusivamente nelle condizioni
ambientali descritte nel capitolo 1 ‘Performance data’ del manuale operativo, in caso contrario le
protezioni previste nello strumento potrebbero risultare non sufficienti.

Questo prodotto non è stato approvato per essere usato in ambienti pericolosi o applicazioni
medicali. Se lo strumento deve essere usato per applicazioni particolari collegate alla sicurezza
(per esempio applicazioni militari o avioniche), occorre che una persona o un istituto competente
ne certifichi l'uso.

xiii

PRECAUTIONS

WARNING

Pericoli da elettricità (alimentazione c.a.)

WARNING

Quest ’apparato è provvisto del collegamento di protezione di terra e rispetta le norme di sicurezza
IEC, classe 1. Per mantenere questa protezione è necessario che il cavo, la spina e la presa
d’alimentazione siano tutti provvisti di terra.

Il circuito d’alimentazione contiene dei filtri i cui condensatori possono restare carichi anche dopo
aver rimosso l’alimentazione. Sebbene l’energia immagazzinata è entro i limiti di sicurezza,
purtuttavia una leggera scossa può essere avvertita toccando i capi della spina subito dopo averla
rimossa.

Non rimuovete mai le coperture perché così potreste provocare danni a voi stessi. Non vi sono
all’interno parti di interesse all’utilizzatore.

Tutte gli interventi sono di competenza del personale qualificato. Vedi elenco internazionale dei
Centri di Assistenza in fondo al manuale.

Pericolo d’incendio

Assicurarsi che, in caso di sostituzione, vengano utilizzati solo fusibili della portata e del tipo
prescritti.
Se viene usata una spina con fusibili, assicurarsi che questi siano di portata adeguata ai requisiti di
alimentazione richiesti dallo strumento.

WARNING

Pericolo sostanze tossiche

WARNING

WARNING

Litio

Alcuni dei componenti usati in questo strumento possono contenere resine o altri materiali che, se
bruciati, possono emettere fumi tossici. Prendere quindi le opportune precauzioni nell’uso di tali
parti.

Rame berillio

Alcuni componenti meccanici in questo strumento sono realizzati in rame berillio. Si tratta di una
lega con contenuto di berillio di circa il 5%, che non presenta alcun rischio in usi normali.

Questo materiale non deve essere lavorato, saldato o subire qualsiasi processo che coinvolge alte
temperature.

Deve essere eliminato come "rifiuto speciale". Non deve essere eliminato tramite "inceneritore".

Quest ’apparato incorpora una batteria al litio o un circu ito integrato contenente una batteria al
litio.

Poiché il litio è una sostanza tossica, la batteria non deve essere mai né rotta, né incenerita, né
gettata tra i normali rifiuti.

Questo tipo di batteria non può essere sottoposto né a ricarica né a corto-circuito o scarica forzata.
Queste azioni possono provocare surriscaldamento, fuoriuscita di gas o esplosione della batteria.

xiv

PRECAUTIONS

WARNING

Posizionamento inclinato

Quando lo strumento è in posizione inclinata è raccomandato, per motivi di stabilità, non
sovrapporre altri strumenti.

Caratteristiche d’uso

Questo strumento è stato progettato e prodotto da Aeroflex eseguire misure su componenti o
sistemi RF e microonde

Se lo strumento non è utilizzato nel modo specificato da Aeroflex, le protezioni previste sullo
strumento potrebbero risultare inefficaci.

Aeroflex non può avere il controllo sull’uso di questo strumento e non può essere ritenuta
responsabile per eventi risultanti da un uso diverso dallo scopo prefisso.

xv

PRECAUTIONS

Precauciones

Estos términos tienen significados específicos en este manual:

WARNING

contienen información referente a prevención de daños personales.
contienen información referente a prevención de daños en equipos.
contienen información general importante.

Símbolos de peligro

El significado de los símbolos de peligro en el equipo y en la documentación es el siguiente:

Símbolo

Naturaleza del peligro

Vea el manual de funcionamiento cuando este símbolo
aparezca en el instrumento. Familiarícese con la naturaleza
del riesgo y con las acciones que deban de tomarse.

Voltaje peligroso

Aviso de toxicidad

Condiciones generales de uso

Este producto ha sido diseñado y probado para cumplir los requerimientos de la normativa
IEC/EN61010-1 “Requerimientos de la normativa para equipos eléctricos de medida, control y uso
en laboratorio”, para equipos clase I portátiles y para uso en un ambiente con un grado de
contaminación 2. El equipo ha sido diseñado para funcionar sobre una instalación de alimentación
de categorías II.

Debe protegerse el equipo de la entrada de líquidos y precipitaciones como nieve, lluvia, etc.
Cuando se traslada el equipo de entorno frío a un entorno caliente, es importante aguardar la
estabilización el equipo para evitar la condensación. Solamente debe utilizarse el equipo bajo las
condiciones ambientales especificadas en el capítulo 1 “Especificaciones” o “Performance data”
del Manual de Instrucciones, en caso contrario la propia protección del equipo puede resultar
dañada.

Este producto no ha sido aprobado para su utilización en entornos peligrosos o en aplicaciones
médicas. Si se va a utilizar el equipo en una aplicación con implicaciones en cuanto a seguridad,
como por ejemplo aplicaciones de aviónica o militares, es preciso que un experto competente en
materia de seguridad apruebe su uso.

xvi

PRECAUTIONS

WARNING

Nivel peligroso de electricidad (tensión de red)

Este equipo cumple las normas IEC Seguridad Clase 1, lo que significa que va provisto de un
cable de protección de masa. Para mantener esta protección, el cable de alimentación de red debe
de conectarse siempre a una clavija con terminal de masa.

Tenga en cuenta que el filtro de red contiene condensadores que pueden almacenar carga una vez
desconectado el equipo. Aunque la energía almacenada está dentro de los requisitos de seguridad,
pudiera sentirse una ligera descarga al tocar la clavija de alimentación inmediatamente después de
su desconexión de red.

No retire las cubiertas del chasis del instrumento, ya que pudiera resultar dañado personalmente.
No existen partes que puedan ser reparadas en su interior.

Deje todas las tareas relativas a reparación a un servicio técnico cualificado. Vea la lista de
Centros de Servicios Internacionales en la parte trasera del manual.

Fusibles

Se hace notar que el Equipo está dotado de fusibles tanto en el activo como el neutro de
alimentación. Si sólo uno de estos fusibles fundiera, existen partes del equipo que pudieran
permanecer a tensión de red.

WARNING

Peligro de incendio

Asegúrese de utilizar sólo fusibles del tipo y valores especificados como repuesto.
Si se utiliza una clavija con fusible incorporado, aseg úrese de que los valores del fusible

corresponden a los requeridos por el equipo. Consulte la Hoja Técnica (tras el Capítulo 1) para
comprobar los requisitos de alimentación.

WARNING

Aviso de toxicidad

WARNING

Berilio-cobre

Alguno de los componentes utilizados en este equipo pudieran incluir resinas u otro tipo de
materiales que al arder produjeran sustancias tóxicas, Por tanto, tome las debidas precauciones en
la manipulación de esas piezas.

Algunos componentes mecánicos contenidos en este instrumento incorporan berilio-cobre en su
proceso de fabricación. Se trata de una aleación con un contenido aproximado de berilio del 5%, lo
que no representa ningún riesgo durante su uso normal.

El material no debe ser manipulado, soldado, ni sometido a ningún proceso que implique la
aplicación de calor.

Para su eliminación debe tratarse como un "residuo especial". El material NO DEBE eliminarse
mediante incineración.

xvii

PRECAUTIONS

WARNING

Litio

WARNING

Tener en cuenta con el equipo inclinado

En este equipo se utiliza una batería de litio (o contenida dentro de un CI).
Dada que el litio es una substancia tóxica las baterías de este material no deben ser aplastadas,

quemadas o arrojadas junto a basuras ordinarias.
No trate de recargar este tipo de baterías. No las cortocircuite o fuerce su descarga ya que puede

dar lugar a que la esta emita gases, se recaliente o explote.

Si utiliza el equipo en posición inclinada, se recomienda, por razones de estabilidad, no apilar
otros equipos encima de él.

Idoneidad de uso

Este equipo ha sido diseñado y fabricado por Aeroflex para realizar medidas en RF y microondas
en componentes y sistemas

Si el equipo fuese utilizado de forma diferente a la especificada por Aeroflex, la protección
ofrecida por el equipo pudiera quedar reducida.

Aeroflex no tiene control sobre el uso de este equipo y no puede, por tanto, exigirsele
responsabilidades derivadas de una utilización distinta de aquellas para las que ha sido diseñado.

xviii

Contents

General

Chapter 1

GENERAL INFORMATION

General ........................................................................................................................................ 1-1

Product outline............................................................................................................................. 1-1

Applications................................................................................................................................. 1-1

Instrument configuration............................................................................................................. 1-2

Specifications .............................................................................................................................. 1-3

Frequency............................................................................................................................. 1-3

Amplitude............................................................................................................................. 1-4

Inputs and outputs ................................................................................................................ 1-5

General specifications ..........................................................................................................1-6

Digitizer specification .......................................................................................................... 1-7

Tracking generator option.................................................................................................... 1-7

Versions and accessories............................................................................................................. 1-8

This section outlines the 3250 Series spectrum analyzer (the ‘instrument’) and details the optional
accessories and the instrument’s specifications.

Product outline

The instrument is a portable spectrum analyzer suited for signal analysis of high-frequency digital
radio equipment.

The instrument uses a synthesized local oscillator to cover the following frequencies:
1 kHz to 3 GHz 3251

1 kHz to 8 GHz 3252
1 kHz to 13.2 GHz 3253
1 kHz to 26.5 GHz 3254

The spectrum analyzer provides excellent distortion and frequency/level accuracy performance,
and easy operation, using the soft-key menu screen.

It provides excellent cost performance with a choice of options for various applications.
It is equipped with highly accurate calibration signals and attenuator, so that it can accurately

calibrate switching errors of LOG/LIN scales, various resolution bandwidths, variable reference
levels, etc. As frequency response data is corrected by built-in calibration data, the instrument
provides accurate level measurement over a wide range.

The MEASURE function performs measurements of various applications without requiring the use
of an external controller. In this way, the performance of radio equipment can be easily evaluated
in terms of frequency, noise, occupied frequency bandwidth and other important paramters.

Applications

This instrument is designed for use in the production and maintenance of the following:

• AM/FM radio equipment

• Digital cellular telephones/cordless telephones

• Satellite broadcasting and TV equipment

• Small capacity microwave equipment

• Wireless LAN equipment.

1-1

Instrument configuration

Various options are available to increase the range of functions. These options (page 1-8) are sold
separately.

Please specify the model number, name, and quantity when ordering.

GENERAL

1-2

Specifications

Note : Allow a thirty-minute warm-up time.

Frequency

GENERAL

Frequency range

DC coupled

AC coupled

Resolution 1 Hz

Frequency reference

Temperature drift ± 1 ppm (± 0.01 ppm, option)

Aging per year ± 1 ppm (± 0.01 ppm, option)

Frequency readout

Marker resolution depending on span and measurement points (1 Hz minimum)

Accuracy ± (marker frequency X reference error + 3% span + 5% RBW)

Frequency counter

Resolution 1 Hz / 10 Hz / 100 Hz / 1 kHz

Accuracy ± ((reference frequency accuracy X marker frequency) ± (counter

Sensitivity

Frequency span

Range 0 Hz (Zero Span), 10 Hz–3 GHz, 6.2 GHz, 13.2 GHz, 26.5 GHz

Resolution 1 Hz

Accuracy ±1%

—

1 kHz–3 GHz / 8 GHz / 13.2 GHz / 26.5 GHz

resolution ± 1 LSB))

<−45 dBm @13.2 GHz for frequencies >2 MHz, span <3 GHz

<−40 dBm @26.5 GHz for frequencies >13.2 GHz, span <3 GHz

Sweep

Zero span

Span ≥10 Hz

Sweep points 3 to 8192 (Span = 0 Hz)

Trigger

Span ≥10 Hz

Span = 0 Hz Source external, video, free run, burst

Spectral purity (dBc/Hz)

1 kHz offset

10 kHz offset

100 kHz offset

1 MHz offset

10 MHz offset

Residual FM

1 μs to 2000 s, ± 0.5 %

10 ms to 2000 s, ± 0.5 % nominal

101 to 8192 (Span ≥10 Hz)

Source external, video, free run, burst

Offset 1 µs to 500 ms

Offset −150 ms to +500 ms

−92 (−95 typical) @ f = 1 GHz

−112 (−115 typical)

−112 (−115 typical)

−136

−144

<10 X N Hz p-p in 1 s

1-3

GENERAL

Resolution bandwidth (RBW)

3 dB bandwidths 30 Hz to 5 MHz in a 1-2-3-5 sequence

Bandwidth accuracy:

500 Hz to 500 kHz filters ± 3 %

1 MHz to 5 MHz filters ± 10 %

Shape factor −60 dB/ −3 dB

Bandwidth switching uncertainty ± 0.05 dB nominal at 100 MHz CF reference to 5 kHz RBW

Video bandwidth (VBW)

3 dB bandwidths 1 Hz to 3 MHz, none in a 1-2-3-5 sequence

FFT filters

3 dB bandwidths 1 Hz to 300 Hz, in a 1-2-3-5 sequence

Bandwidth accuracy < 1 %, nominal

Shape factor (−60 dB: −3 dB)

Amplitude

Display range

Maximum input level

DC (AC coupled) ±50 V DC (Option)

DC (DC coupled) —

CW RF power +30 dBm

Peak power +50 dBm, 5 μs pulse width, 0.5% duty cycle

Preamp on +20 dBm

RF input attenuator

Range 0 dB to 55 dB

Steps 5 dB

Switching accuracy ± 0.5 dB at 100 MHz (3251, 3252)

± 0.5 dB at <13.2 GHz (3253, 3254)

± 0.8 dB from 13.2 GHz to 26.5 GHz (3254)

< 5 (@ 500 Hz to 5 MHz)

< 4.5, nominal

DANL to +30 dBm

1 dB compression point

0 dB RF attenuation

Preamp on

Third−order intermodulation distortion (TOI) For two tones of −30 dBm at the input mixer with a tone separation

+8 dBm at 10 MHz to 200 MHz

Second harmonic intercept (SHI)

+40 dBm typical up to 1.5 GHz

+80 dBm for frequencies 1.5 GHz to 26.5 GHz

Displayed average noise level (DANL)

−10 dBm up to 3 GHz
0 dBm at 3 GHz to 26.5 GHz

−32 dBm at 1 GHz

of >100 kHz:

+12 dBm, 15 dBm typical at 200 MHz to 26.5 GHz

with −30 dBm at the input

RBW 1 Hz, VBW 1 Hz, 50 ohm termination

−135 dBm/Hz

−143 (−145 typ) dBm / Hz

−141 (−145 typ) dBm / Hz

−138 (−142 typ) dBm / Hz

−133 (−138 typ) dBm / Hz

from 100 kHz to 10 MHz

from 10 MHz to 2 GHz

from 2 GHz to 13.2 GHz

from 13.2 GHz to 18 GHz

from 18 GHz to 26.5 GHz

1-4

GENERAL

Immunity to interference

Residual responses (input terminated, 0 dB
attenuation)

Other input-related spurii

Display range

Log scale 0.1 to 1 dB /div in 0.1 dB steps

Linear scale: 10 divisions

Units of level axis dBm, dBmV, dBµV, V, W (log level display)

Reference level

Logarithmic range

Linear range 7.07 nV to 7.07 V in 1 % steps

Accuracy 0 dB

Traces

Number of traces 3

Trace detectors Normal, peak, sample, negative peak, log power average, RMS,

Trace functions Clear / Write, Max Hold, Min Hold, View, Blank, Average

Frequency response

±0.5 dB from 1 MHz to 3.0 GHz

Preamp on ±1.0 dB from 1 MHz to 3.0 GHz

Display non−linearity

Linear and log switching error 0 dB

Log scale switching error 0 dB

Linearity

−90 dBm

−55 dBc with −30 dBm input

1 to 20 dB / div in 1 dB steps

mV, µV, dBmV (linear level display)

−170 dBm to +30 dBm, 0.1 dB steps

average, voltage average

with 10 dB input attenuation, preselector centering applied

±1.0 dB from 3.0 GHz to 8 GHz
±1.5 dB from 8 GHz to 13.2 GHz
±2.0 dB from 13.2 GHz to 22 GHz
±2.5 dB from 22 GHz to 26.5 GHz

± 0.1 dB total for an input mixer level of ≤−20 dBm
± 0.13 dB total at −20 dBm < mixer level ≤−10 dBm

Demodulation

AM demodulation depth up to 100%

FM deviation range: up to 100 kHz

Audio output port Loudspeaker, phone jack

Inputs and outputs

RF input

Type

VSWR

<1.5 nominal, 10 MHz to 3 GHz

<1.8 nominal, 3 GHz to 13.2 GHz

<2.0 nominal, 13.2 GHz to 26.5 GHz

3rd IF output

Type

Frequency 21.4 MHz

Bandwidth 16 MHz max, different as prefilter

Level +2 dBm nominal, top of screen

Front: N female, 50 Ω

APC 2.92 mm, 50 Ω (26.5 GHz)

with ≥10 dB input attenuation

Rear: BNC female, Ri = 50 Ω

1-5

GENERAL

Audio output

Type Front panel phone jack

External trigger input

Type

Trigger level TTL nominal

Sweep gate output

Type Rear: BNC female

Trigger level TTL nominal

Reference frequency output

Type Rear: BNC female, same as reference input port

Frequency 10 MHz

Level +5 dBm nominal

Reference frequency input

Type Rear: BNC female, same as reference output port

Frequency 10 MHz

Level

GPIB

Type Rear: IEEE 488.2, 24-pin female

Command set SCPI 1997.0

Interface functions SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, E2, LE0, TE0

Rear: BNC female, 10 kΩ nominal

BNC female

BNC female

−5 to +15 dBm nominal

Serial interface

LAN interface

USB

Printer interface

Monitor output (VGA)

Rear: 15-pin min D-SUB

Cal output

Frequency Front: 40 MHz

Level

General specifications

Display

Size 17.7 cm (7 inch) color TFT LCD (touch screen)

Resolution 800 x 480 pixel

Mass memory

Environmental conditions

Temperature

Operating 0ºC to +50ºC

Permissible 0ºC to +55ºC

Storage

Humidity 5 to 95%

Altitude Up to 4600 m (15 000 feet)

Rear: RS-232-C (COM) 9-pin D−sub connector, female

Rear: 10/100/1000 Base T, connector RJ45

Front: two USB 2.0 connectors
Rear: two USB 2.0 connectors

Rear: —

−20 dBm ±1.0 dB

Hard disk, removable, 80 Gbyte

MIL-PRF-28800F, Class 3

−40ºC to +71ºC

5 to 75% above 30ºC
5 to 45% above 40ºC

1-6

GENERAL

Mechanical resistance

Vibration, random 5 Hz to 500 Hz

Vibration, sinusoidal 5 Hz to 55 Hz

Shock 30 G half-sine shock pulse

Electromagnetic compatibility

Safety

Power supply

Steady state voltage 100 VAC to 240 VAC

Frequency 50/60 Hz

Power consumption 120 W maximum (3254)

Dimensions and weight

Dimensions (W x H x D) 373 mm x 194 mm x 401 mm (without handles, feet not extended)

Weight 11 kg (3251)

Recommended calibration interval

Standard warranty

MIL-PRF-28800F, Class 3

IEC/EN 61326, 2006
RFI suppression (EMC) EN 55011: 2001 Group 1 Class A
Immunity Table 1 and Performance Criterion B

IEC/EN 61010-1, 2001 + C1 : 2002 + C2 : 2003

384 mm x 203 mm x 437 mm (with handles, feet extended)

12.8 kg (3252)

13.0 kg (3253)

13.4 kg (3254)

1 year

2 years

Digitizer specification

Maximum analysis bandwidth

ADC resolution

Dynamic range

Residual FM

Capture memory

Tracking generator option

Frequency range

Frequency resolution

Output level range

Output level resolution

Absolute level accuracy

Frequency flatness

Spurious output levels

30 MHz

14 bit

85 dB

<1% (nominal)

128 Mbyte (32 Msample)

9 kHz to 3.0 GHz

1 Hz

−30 dBm to 0 dBm

0.1 dB

±2.0 dB

±4.0 dB at −10 dBm (9 kHz to 100 kHz) before normalization
±2.5 dB at −10 dBm (100 kHz to 3 GHz) before normalization
±1.0 dB at −10 dBm (9 kHz to 3 GHz) after normalization

−15 dBc, harmonic level

−30 dBc, non-harmonic level

Leakage

VSWR

Connector

−90 dBm

1.5 at 0 dBm output level

Type N female, 50 Ω

1-7

Versions and accessories

When ordering, please quote the full ordering number information.

Ordering numbers Version

3251/0 1 kHz to 3 GHz spectrum analyzer

3251/1 1 kHz to 3 GHz spectrum analyzer with tracking generator

3252/0 1 kHz to 8 GHz spectrum analyzer

3252/1 1 kHz to 8 GHz spectrum analyzer with tracking generator

3253/0 1 kHz to 13.2 GHz spectrum analyzer

3253/1 1 kHz to 13.2 GHz spectrum analyzer with tracking generator

3254/0 1 kHz to 26.5 GHz spectrum analyzer

3254/1 1 kHz to 26.5 GHz spectrum analyzer with tracking generator

80028 Option 01 3 GHz tracking generator

80029 Option 03 High stability oscillator

80030 Option 05 External pre-selector (A, B band)

80025 Option 06 AC/DC power supply

80031 Option 08 GSM/EDGE measurement suite

80032 Option 09 UMTS UL measurement suite

80033 Option 10 CDMA measurement suite

80034 Option 11 WLAN measurement suite

80035 Option 12 WiMAX measurement suite

80036 Option 13 EMI measurement suite

80037 Option 14 LTE measurement suite

GENERAL

Options

Supplied accessories

−

46886/070 CD-ROM containing operating and programming manuals

80027 Soft carrying case

80040 Hard carrying case

80026 DC battery pack

80038 RF probe (3 GHz)

80039 Connector and cable assembly

46882/974 3250 Series Operating Manual (paper version)

46882/975 3250 Series Programming Manual (paper version)

AC supply lead

Optional accessories

1-8

Contents

Chapter 2

PREPARING FOR USE

Introduction ................................................................................................................................. 2-1

Installation site and environmental conditions............................................................................ 2-2

Locations to be avoided........................................................................................................ 2-2

Safety measures........................................................................................................................... 2-3

Preparations before power-on .............................................................................................. 2-3

Protective grounding with frame ground terminal ............................................................... 2-4

Before power-on................................................................................................................... 2-4

Use a proper power source................................................................................................... 2-4

Do not operate with suspected damage................................................................................ 2-4

Object and liquid entry.........................................................................................................2-4

Flammable and explosive substances................................................................................... 2-4

Unstable location.................................................................................................................. 2-4

Cleaning ............................................................................................................................... 2-5

Replacing memory backup battery....................................................................................... 2-5

Data storage.......................................................................................................................... 2-5

Altering or deleting important files...................................................................................... 2-5

Input level to RF input.......................................................................................................... 2-5

Front panel power switch ............................................................................................................ 2-6

Power-on .............................................................................................................................. 2-6

Supply interruption............................................................................................................... 2-6

Detection mode............................................................................................................................ 2-7

Introduction

This section explains the preparations and safety procedures that you should perform before using
the instrument. The safety procedures are to prevent injury to you and others, and damage to the
instrument.

Read these together with the safety precautions in the Preface.
Ensure that you understand the contents of the pre-operation preparations before using the

instrument.
For connecting a GPIB cable and setting the GPIB address, refer to the Programming Manual

(document no. 46892/975).

2-1

PREPARING FOR USE

Installation site and environmental conditions

Locations to be avoided

The instrument operates correctly at temperatures from 0 to 50ºC. However, for best performance,
avoid the following situations:

• where there is severe vibration

• where the humidity is high

• where the instrument is exposed to direct sunlight

• where the instrument is exposed to active gases.

In addition to the above, to ensure long-term trouble-free operation, use the instrument at room
temperature and in a location where the power supply voltage does not fluctuate greatly.

There is a risk of a short-circuit caused by condensation if the instrument is brought into a warm
environment after it has been used or stored for a long time at a low temperature. To prevent this,
do not turn the instrument on until it has been allowed to dry out completely.

The instrument has a fan on the rear panel to maintain a steady internal temperature. Leave a gap
of at least 10 cm between the rear panel and wall, nearby equipment or any obstructions so that fan
ventilation is not blocked, as shown in the diag ram below.

10 cm

FAN

WALL

2-2

Safety measures

This paragraph explains safety procedures that you must follow in all circumstances, to prevent the
risk of an accidental electric shock, damage to the instrument or a major interruption to operation.

Preparations before power-on

The instrument operates normally when it is connected to a 100 VAC to 250 VAC 50/60 Hz
power supply (voltage selected automatically). To prevent:

• Accidental electric shock

• Damage caused by abnormal voltage

• Ground current problems.

follow the procedures described on the next pages before applying power.
To protect you, the following WARNING and CAUTION notices appear on the rear panel of the

instrument.

PREPARING FOR USE

WARNING

TO AVOID ELECTRIC SHOCK,
THE PROTECTIVE GROUNDING CONDUCTOR
MUST BE CONNECTED TO GROUND.
DO NOT REMOVE COVERS.
REFER SERVICING TO QUALIFIED PERSONNEL.

CAUTION

FOR CONTINUED FIRE PROTECTION
REPLACE ONLY WITH SPECIFIED
TYPE AND RATED FUSE.

Disassembly, adjustment, maintenance, or other access inside this equipment is to be performed by
qualified personnel only. Only trained service personnel who are familiar with the risk involved of fire
and electric shock should perform maintenance of this equipment. Potentially lethal voltages existing
inside this equipment, if contacted accidentally, may result in personal injury or death, or in the
possibility of damage to precision components.

WARNING

2-3

PREPARING FOR USE

WARNING

Protective grounding with frame ground terminal

When there is no grounded AC power-supply outlet, connect the protective frame ground (FG)
terminal on the rear panel directly to ground potential.

If power is applied without protective
grounding, there is a risk of accidental
electric shock. The protective frame ground
(FG) terminal on the rear frame, or the
ground pin of the supplied power cord,
must be connected to ground potential
before power is supplied to the equipment.

FG

WARNING

WARNING

Before power-on

• Connect the instrument to protective ground. If power is switched on without taking this
precaution, there is a risk of receiving an accidental electric shock.

• Check the power source voltage. If an abnormal voltage that exceeds the specified value is
input, there is risk of damage to the instrument, and fire.

Use a proper power source

Do not operate this instrument from a power source that supplies more than the specified voltage.
Use a stable supply.

Do not operate with suspected damage

If you suspect there is damage to the instrument, protection may be impaired, so do not attempt to
operate the instrument under these conditions. Have it inspected by qualified service personnel.

Object and liquid entry

Do not push any kind of object through openings into the instrument, as it may touch dangerous
voltage points or short out parts that could result in electric shock or a fire. Avoid spilling liquid
of any kind on the instrument. If liquid enters the instrument, return it to an agent for checking.

Do not use the instrument near water. Keep the instrument in a dry, dust-free environment.

Flammable and explosive substances

Avoid using the instrument where there are flammable or explosive substances, including gases, in
the immediate vicinity.

Unstable location

Do not place the instrument on an unstable cart, stand or table. If the instrument were to fall, it
could cause serious personal injury, and serious damage to the instrument. Do not subject the
instrument to vibration.

2-4

PREPARING FOR USE

Cleaning

Keep the power supply and cooling fan free of dust.
Clean the power inlet regularly. If dust accumulates around the power pins, there is a risk of fire.
Keep the cooling fan clean so that the ventilation ho les are not obstructed. If the ventilation is

obstructed, the cabinet may overheat and catch fire.

Replacing memory backup battery

A primary lithium battery supplies power for CMOS backup. Replace this battery with one of the
same type (Maxell CR2032H). Only an approved technician can replace the battery, so please
contact your local service representative when replacement is necessary.

Battery life is about seven years. Replace the battery early to avoid loss of stored information.
Dispose of the battery according to local environmental requirements.

Data storage

The instrument stores data using a hard disk. The hard disk may be damaged by strong vibration
or electrical shock.

If you need to exchange a damaged hard disk, connect your local service representative.

Altering or deleting important files

The instrument uses the Windows operating system on the hard disk (C:\Program Files). Altering
or deleting contents of the Windows folder may cause improper system operation.

Input level to RF input

Frequency range: 1 kHz to 3 GHz (3251)
1 kHz to 8 GHz (3252)
1 kHz to 13.2 GHz (3253)
1 kHz to 26.5 GHz (3254)
Measurement level: the maximum signal level that can be applied to the RF input connector is

+30 dBm.

The RF input circuit is not protected against excessive power:
If you apply a signal exceeding +30 dBm, the input attenuator and internal circuit will be

damaged.
Do not input over 0 VDC to the RF input connector.

2-5

Front panel power switch

Power-on

When the instrument is in the standby state, a momentary press of the front power switch turns on
the power.

The instrument uses the Windows operating system. Windows starts up first, before the
instrument boots up.

Note: if the instrument does not automatically start correctly, click the Aero flex icon on the
display twice.

Supply interruption

If, while the instrument is in the power-on state, the power plug is removed from the outlet and
then reinserted, the power is not turned on again. Also, if power is disconnected due to a
momentary supply interruption or failure, the instrument is not turned on again when power is
restored. This prevents incorrect data being acquired when line power is disconnected and
reconnected.

For example, if the sweep is 1.000 s and data acquisition requires a long time, a momentary power
supply interruption (power failure) might occur during measurement and the instrument would
then recover automatically to the power-on state. In such a case, the instrument might mistake
incorrect data for correct data without recognizing the momentary power supply interruption.

If the instrument enters the standby state due to a momentary power supply interruption or power
failure, check the state of the measuring system and press the front power switch to restore power
to the instrument.

PREPARING FOR USE

An incorrect power-down may damage the hard disk. We recommend that you use a stable power
supply.

2-6

Detection mode

This instrument is a spectrum analyzer that uses a digital storage system. The instrument makes
level measurements in frequency steps obtained by dividing the frequency span by the number of
measurement data points (551–8192). Optimal results are obtained by using the following
detector modes for the associated measurements.

Normal spectrum POS PEAK
Random noise SAMPLE OR AVERAGE
Pulsed noise NORMAL
Occupied frequency bandwidth SAMPLE
(for analog communication systems)
Occupied frequency bandwidth POS PEAK or SAMPLE
(for digital communication systems)

PREPARING FOR USE

Measurement Detector mode

2-7

Contents

Introduction ................................................................................................................................. 3-1

Front and rear panel features....................................................................................................... 3-2

I/O connectors .............................................................................................................................3-6

GPIB connector........................................................................................................................... 3-7

RS-232C connector .....................................................................................................................3-8

Ext VGA connector.............................................................................................................. ....... 3-8

USB connector............................................................................................................................. 3-9

Ethernet connector ..................................................................................................................... 3-10

Introduction

This chapter describes the front (Fig. 3-1) and rear (Fig. 3-2) panels.
The following conventions apply throughout this manual:

CAPS Capitals are used to identify names of controls and panel markings.
[CAPS]

[Italics] Italics in square brackets indicate soft-key titles (F1–F8).

Example: [FREQ]

[Center]

Chapter 3

PANEL DESCRIPTION

Capitals in square brackets indicate hard-key titles.

3-1

FRONT AND REAR PANELS

Front and rear panel features

Table 3-1 Front and rear panel features

1 LCD The liquid crystal display. Displays waveforms, the parameter

2 F1–F8, NEXT These are the soft keys for selecting the soft key menus linked to

3 [FREQ] The frequency parameter data input section.

[SPAN] The span parameter data input section.

[AMPL] The amplitude parameter data input section.

[MEAS] Sets the selected measurement functions.

4 [MARKER] Sets the marker.

[MKR →] Sets the marker value to a specified parameter.

[PEAK] Related to the peak search function.

[FUNC] Sets the function related to a marker.

[COUPLE] Sets the detection mode.

[BW] Sets the RBW and VBW.

[CONTROL] Sets the measurement functions.

[SWEEP] Sets the sweep time and the number of data.

5 [SYSTEM] Sets the configuration of the system.

[SOURCE] Selects the signal source.

[MODE] Selects the measurement mode.

[SETUP] Sets the measurement mode.

[LIMIT] Sets the limit line functions.

[DISPLAY] Sets the display functions.

[AUX] Sets the auxiliary functions, such as FM/AM demodulation.

[TRACE] Selects the trace waveform and video average mode.

6 NUMERIC Used for setting the numeric data and moving the cursor.

settings, the value of marker, the soft menu keys, etc.

the panel key operation.

[↵] (backspace-key) corrects wrongly input data.

[0…9, ‘.’, ‘+/-‘] are numeric data setting keys.

7 (SCROLL KNOB) Used for scrolling through parameters.

8 (STEP KEY) Used for stepping parameters up or down.

9 RF INPUT RF input connector.

10 CAL. OUT Output connector for the calibration signal.

11 PHONE Output of audio signal.

12 TG Out Output of tracking generator (Option).

13 Front USB USB connector for external equipment/mouse.

14 STBY/ON Power switch. Functional when the rear-panel power switch is

on. The instrument goes to power-on from the STBY condition
when the key is pressed momentarily. The instrument returns to
the STBY condition from the power-on condition when the key is
pressed again.

3-2

FRONT AND REAR PANELS

15

[File] Manages the file.

[Save] Used for saving the waveforms’ status and limit lines.

[Print] Used for printing.

[Preset] Sets the measurement parameters to the default values.

[Tune] Used for the auto tuning function.

[Trig] Sets the trigger functions.

[Single] One sweep is executed by pressing this key.

16 SWEEP GATE Output connector for a sweep gate signal.

17 EXT TRIG Input connector for an external trigger.

18 3rd IF OUT Output connector for the 3rd IF signal.

19 RS-232C The RS-232C connector: connects to an external system

20 Removable HDD Removable storage. Remove only when instrument is powered

21 EXT VGA VGA output for an external monitor.

22 ETHERNET Ethernet connector for network connection.

23 REF OUT 10MHz Output connector for a reference frequency. When other

24 (AC inlet) The fused AC power inlet to which the supplied power cord is

25 REF IN 10MHz Input connector for a reference frequency. When an external

26 Rear USB Connector for USB equipment.

27 GPIB For use with the GPIB interface: connects to an external system

28 (FG) Frame ground terminal.

29 (FAN) Cooling fan, ventilating internally-generated heat. Leave a

Enters the Windows menu.

Calibration menus are also included under this key.

controller.

down.

equipment is used with this instrument, the output of this
connector can be used as a reference.

connected.

reference signal is applied to this connector, the present
condition is displayed on the upper right side of the display.

controller.

clearance of 10 cm between the fan and any nearby surface.

3-3

FRONT AND REAR PANELS

5

4

3

2

6

7

8

C6335

9

10

1112131415

1

Fig. 3-1 Front panel

3-4

22

21

FRONT AND REAR PANELS

23

C6336

24

19 20

18

17

16

25

26

27

28

Fig. 3-2 Rear panel

3-5

29

I/O connectors

Connector Type In/out Signal Location

AC INPUT IEC 320 socket Input AC power Rear 25

RF INPUT Type N (2.92 mm

CAL. OUT BNC female Output

EXT TRIG BNC female Input TTL level Rear 17

SWP GATE BNC female Output TTL level Rear 16

3rd IF OUT BNC female Output 21.4 MHz, 2 dBm Rear 18

REF IN BNC female Input 10 MHz Rear 25

REF OUT BNC female Output 10 MHz Rear 23

GPIB 24-pin champ In/Out Refer to pin

RS-232C 9-pin, D-sub male In/Out Refer to pin

ETHERNET 10/100/1000 Base-T In/Out Refer to pin

USB USB 2.0 support In/Out Refer to pin

EXT VGA 15-Pin, D-sub

FRONT AND REAR PANELS

Table 3-2 I/O connectors

Input 1 kHz–

female)

Output Refer to pin

female

3.0/8/13.2/26.5 GHz

40 MHz, −20 dBm

specification
(Table 3-3)

specification
(Table 3-4)

specification
(Table 3-7)

specification
(Table 3-6)

specification
(Table 3-5)

Front 9

Front 10

Rear 27

Rear 19

Rear 22

F

ront 13

Rear 26

Rear 21

3-6

GPIB connector

The IEEE-488 GPIB connector complies with ANSI/IEEE Standard 488.2-1987.

Pin number Signal Pin number Signal

1 DIO 1 13 DIO 5

2 DIO 2 DIO 6

3 DIO 3 15 DIO 7

4 DIO 4 16 DIO 8

5 EQI 17 REN

6 DAV 18 Ground

7 NRFD 19 Ground

FRONT AND REAR PANELS

Table 3-3 Pin-out for IEEE-488 GPIB connector

8 NDAC 20 Ground

9 IFC 21 Ground

10 SRQ 22 Ground

11 ATN 23 Ground

12 Ground 24 Ground

Fig. 3-3 IEEE-488 GPIB connector

3-7

RS-232C connector

FRONT AND REAR PANELS

Table 3-4 Pin-out for RS-232C connector

Pin number

1 DCD

2 RXD

3 TXD

4 DTR

5 Ground

6 DSR

7 RTS

8 CTS

9 RI (NC)

Signal

Ext VGA connector

Fig. 3-4 RS-232C connector

Table 3-5 Pin-out for EXT VGA connector

Pin number Signal

1 RED

2 GREEN

3 BLUE

4 NC

5 Digital GND

6 RGND

7 GGND

8 BGND

3-8

FRONT AND REAR PANELS

9 Vcc

10 Digital GND

11 NC

12 DDC data

13 HSYNC

14 VSYNC

15 DDC clock

USB connector

Fig. 3-5 EXT VGA connector

Table 3-6 Pin-out for USB

Pin number

1 USB Vcc

2

3 DATA+

4 USB GND

DATA−

Signal

Fig. 3-6 USB connector

3-9

Ethernet connector

FRONT AND REAR PANELS

Table 3-7 Pin-out for ETHERNET

Pin number

1 TX+

2

3 RX+

4 NC

5 NC

6

7 NC

8 NC

TX−

RX−

Signal

Fig. 3-7 ETHERNET connector

3-10

Introduction

In this section, soft menu functions and their hierarchy in the system are described using a menu
tree.

Note the following general operational points about the menu tree:

• Panel Key represents a hard key on the front panel.

• Soft Menu 1 is displayed on the screen when the panel key is pressed. Soft Menu 2 indicates

• Pressing [Prev..] on Soft Menu 2 takes you back to Soft Menu 1.

Chapter 4

MENU TREE

that there is another menu below Soft Menu 1.

4-1

MENU TREE

Menu tree

Panel key Soft menu 1 S oft menu 2

FREQ

SPAN

Center Freq

Start Freq
Stop Freq

CF Step [Auto/Manl]

Freq Offset

Signal Track [OFF/ON]

10MH z Ref. [Intern a l/E xt e rn a l]

Span Width

Full Spa n

Zero Span

Last Span

Zoom In

Zoom Out

Units

Corrections

AMPL

Ref. Level

Attenuation [Auto/Manl]

Scale / Div

Scale Type [Log/Lin]
MW Int. Amp [OFF/ON]
Internal Amp [O F F/ON]

Ref. Offset

Units..

More 1 of 2

Correction Factors

Input Z [50 ohm/75 ohm]

More 2 of 2

4-2

MENU TREE

Soft menu 1 Soft menu 2

Units

Correction

dBm

dBmV

dBuV

dBmA

dBuA

Volts
Watts
Amps

Previous

Correction Apply [No/Yes]

Correction [OFF/ON]

Antenna [OFF]

Cable [OFF]
Other [OFF]

User [OFF]

Delete All

Previous

Point

Frequency

Amplitude

Delete Point

Find Freq.

Save

Delete Corr.

Previous

4-3

MENU TREE

So ft m e n u 1 So ft men u 2Panel key

MEAS

[Xd B Down]

CONTROL

Meas. Off

XdB Down

Adj. Channel Pwr

Channel Power

Occupied BW

Intermodulation

(TOI)

Total Power

More 1 of 2

Point A X[dB]
Point B X[dB]

Shape Factor [OFF/ON]

Meas. Off

CCDF

Harm. Distortion

Spec. Emi. Mask

Sp u r io u s Emiss ions

Average Power

(Burs t Pow e r)

Multi-C h a nne l Pw r

More 2 of 2

Meas. Average [OFF/ON]

Meas. Avg. Mode [EXP/REP]

Meas. Avg. Reset
Meas. Avg. Count

[Ad j. C P]

CONTROL

Meas. Avg. Reset

Meas. Avg..

Previous

Span

Ma in Ch. BW
Adj. Ch1. BW

Adj. Ch1. Spacing

Adj. Ch1. State [OFF/ON]

Active Adj. Ch.

Meas. Avg. Reset

Meas. Avg..

4-4

MENU TREE

Soft menu 1 Soft menu 1Panel key

[Channel Pwr]

CONTROL

[Occupied

BW]

CONTROL

Span

Integ. BW

Max Hold [O FF /ON ]

Trc Average [OFF/ON]

Meas. Avg. Reset

Meas. Avg..

Span

Percentage

Ma x Hold [OFF/O N]

Trc Average [OFF/ON]

Meas. Average [OFF/ON]

Meas. Avg. Mode [EXP/REP]

Meas. Avg. Reset
Meas. Avg. Count

Previous

[HD ]

CONTROL

Meas. Avg. Reset

Meas. Avg..

Harmonics

Restart

Stop

4-5

MENU TREE

Soft menu 1 Soft menu 1Panel key

[CC D F]

CONTROL

[TO I]

CONTROL

Counts

Span

Ma x Hold [O F F /ON ]

Trc Average [OFF/ON]

Meas. Average [OFF/ON]

Meas. Avg. Mode [EXP/REP]

Meas. Avg. Reset
Meas. Avg. Count

[Total Pwr]

CONTROL

Meas. Avg. Reset

Meas. Avg..

Previous

Span

Max Ho ld [OF F/O N]

Trc Average [OFF/ON]

Meas. Avg. Reset

Meas. Avg..

4-6

MENU TREE

So ft m e n u 1 S o ft men u 1Panel key

[SE M ]

CONTROL

Meas. Type

[PS D R e f /T o ta l P wr R e f]

Ref Channel..
Offset Table..

Radio Std.

Meas. Avg. Reset

Meas. Avg..

Meas. Average [OFF/ON]

Meas. Avg. Mode [EXP/REP]

Meas. Avg. Reset
Meas. Avg. Count

Integ. BW

Span

Sweep Time

RBW

Previous

Offse t [A /B /C /D /E /F ]

Offs e t Activ e [ OFF/ON]

Start Freq
Stop Freq

Sweep Time

RBW

Previous

More 1 of 2

Offse t [A /B /C /D /E /F ]

Abs. Start
Abs. Stop

Rel. Start

Rel. Stop

Fail Mask

More 2 of 2

4-7

MENU TREE

So ft men u 1 So ft men u 1Panel key

[SE ]

CONTROL

Restart

Stop

Range Table..

Meas. Avg. Reset

Meas. Avg..

Range

Range Active [OFF/ON]

Start Freq
Stop Freq

Res BW

Video BW

Sweep Time

Points

More 1 of 2

Range
Start Limit
Stop Limit

Pk Excursion
Pk Threshold

Ref Level

[AP ]

CONTROL

Meas. Method [Meas/Threshold]

Rel. Threshold

Sweep Time

Meas. Avg. Reset

Meas. Avg..

Attenuation

Detector

More 2 of 2

Meas. Average [OFF/ON]

Meas. Avg. Mode [EXP/REP]

Meas. Avg. Reset
Meas. Avg. Count

Previous

4-8

MENU TREE

Panel key Soft menu 1 Soft menu 2

[MCP]

CONTROL

DISPLAY

Active Channel

Channel State [OFF/ON]

Channel Center

Channel BW

Span

Meas. Avg. Reset

Meas. Avg..

Full Screen

Display Value

Display Line [OFF/ON]

Threshold Value

Meas. Average [OFF/ON]

Meas. Avg. Mode [EXP/REP]

Meas. Avg. Reset
Meas. Avg. Count

Previous

Screen Title..

White Mode [OFF/ON]

Graticule [OFF/Full/Center]

Annotation [OFF/ON]

Threshold Line [OFF/ON]

Zoom Center

Zoom Span

Zoom Display [OFF/ON]

More 1 of 3

Screen Note 1
Screen Note 2

Screen Note 3
Screen Note 4
Screen Note 5
Screen Note 6
Screen Note 7
Screen Note 8

Dual Windows [OFF/ON]

Select Window [Top/Bottom]

Text Position [Top/Center/Bottom]

Grid Text [OFF/ON]

More 2 of 3

Character Box

More 3 of 3

4-9

MENU TREE

Panel key Soft menu 1 Soft menu 2

TRACE

Select Trace [A/B/C]

Clear&Write

Max Hold

Min Hold

View

Blank

More 1 of 2

TraceA First
TraceB First

TraceC First

Avg/VBW Type[Auto/Manl]

Trc Average [OFF/ON]

Trc Avg. Mode [Exp/Rep]

Trc Avg. Reset
Trc Avg. Count

More 2 of 2

Avg/VBW Type

TRIG

Free Run

Video

External

RF Burst

Trig Slop [Pos/Neg]

Trig Delay [OFF/ON]

4-10

MENU TREE

Panel key Soft menu 1 Soft menu 2

LIMIT

COUPLE

Up Pass Check [OFF/ON]

Low Pass Check [OFF/ON]

Make Up Line..

Make Low Line..

All Clear

Alarm [OFF/ON]

All Auto

Detector [Auto/Manl]

Avg/VBW Type [Auto/Manl]

Select [Freq/Ampl]

Insert Line

Delete Line

Clear

Previous

Auto

Normal

Average

FFT & Sweep [FFT/Sweep]

Positive Peak

Sample

Negative Peak

Avg/VBW

4-11

MENU TREE

Panel key Soft menu 1 Soft menu 2

Avg/VBW

BW

Auto

Log-Pwr Avg

Pwr Avg

Voltage Avg

All Auto

RBW [Auto/Manl]

VBW [Auto/Manl]

VBW/RBW

Span/RBW [Auto/Manl]

4-12

MENU TREE

Panel key Soft menu 1 Soft menu 2

AUX

SOURCE

Am Demod. [OFF/ON]
FM Demod. [OFF/ON]

Audio Sound [OFF/ON]

Audio Level

Spectrum View [OFF/ON]

Window Type

AM Scale

FM Scale

TG
SG

Tracker [OFF/ON]

Output Lvl

Normal [OFF/ON]

Power Swp [OFF/ ON]

4-13

MENU TREE

Panel key Soft menu 1 Soft menu 2

SWEEP

SYSTEM

Sweep Time [Auto/Manl]

Continuous

Single

Swp Time Acc. [Norm/Accy]

X-scale Inter. [Auto/LIN/B-Spline]

Points

Printer Setup..

GPIB Setup..

Version Info..

Factory Config..

Software Config..

RS232c Setup..

TCP/IP Setup..

Option Info..

System Info..

S/N Info..

More 1 of 2

Option

TCP/IP

RS232C

GPIB

KeyPad Beep [OFF/ON]

Keyboard [Keypad/

Command]

Make System Info.

RCI Echo [OFF/ON]

More 2 of 2

4-14

MENU TREE

Panel key Soft menu 1 Soft menu 2

RS232C

GPIB

Baud Rate

Data L e n g th

Stop Bit
Parity Bit

Previous

Set Address

OPTION

Previous

Option Activate

Display Option

Previous

4-15

MENU TREE

Panel key Soft menu 1 Soft menu 2

FILE

Character Box

Load
Save

Delete

Rename

Auto Naming

File Type..

All Delete

Close

More 1 of 2

All

Bitmap (s)
JPEG (s)

Sort key

Sort Direction [Ascend/Descend]

Attribute [Normal/ReadOnly]

Copy to SA

Copy to USB

Default Folder

Folder UP

Folder Down

More 2 of 2

Status (*.sts)

Trace (*.trc)

Limit (*.lim)

Spur (*.spe)

PNG (s)

Bitmap (F)

JPEG (F)

PNG (F)

More 1 of 3

SEMask (*.sem)

CSV (*.csv)

Macro (*.mac)

More 2 of 3

Config (*.emc)

Limit (*.emt)

Antenna (*.ant)

Cable (*.cbl)
Other (*.oth)

User (*.usr)

4-16

More 3 of 3

MENU TREE

Panel key Soft menu 1 Soft menu 2

MARKER

MKR >

Select Marker

Normal

Delta

Band Pair [Start/Stop]

Span Pair [Span/Center]

OFF

Marker Trace [A/B/C]

All OFF

More 1 of 2

Marker->CF

Marker->CFStep

Readout

Marker Table [OFF/ON]

Edit Mkr Name..

Defaurt Mkr Name

Mkr Average [OFF/ON]

Mkr Avg. Mode [Exp/Rep]

Mkr Avg. Reset

Mkr Avg. Count

More 2 of 2

Character Box

Marker->Start
Marker->Stop

Marker->Ref

dMarker->Span

dMarker->CF

dMarker->CFStep

4-17

MENU TREE

Panel key Soft menu 1 Soft menu 2

PEAK

Next Peak

Next Pk Left

Next Pk Right

Min Search

Pk-Pk Search

Signal Track [OFF/ON]

Continuous [OFF/ON]

Marker->CF

More 1 of 2

Run Multi Peak

Multi Peak Number

Multi Pk Trace [A/B/C]

Pk Excursion
Pk Threshold

Pk Method [Param/Max]

More 2 of 2

FUNC

Marker Noise

Freq. Counter

Meas. OFF

4-18

Contents

Chapter 5

OPERATING PROCEDURES

Screen layout ................................................................................................................................. 5-5

Selecting parameters with touch screen......................................................................................... 5-6

Toggling values ............................................................................................................................. 5-6

Control using keyboard and mouse ............................................................................................... 5-6

Keyboard ................................................................................................................................ 5-6

Mouse ..................................................................................................................................... 5-6

Selecting spectrum analysis or phase noise measurement mode ................................................... 5-7

Instrument in spectrum analysis measurement mode.............................................................. 5-8

Freq/span functions........................................................................................................................ 5-8

Center-span mode frequency data entry ................................................................................. 5-9

Start-stop mode frequency data entry................................................................................... 5-10

Setting center frequency step................................................................................................ 5-11

Setting frequency offset........................................................................................................5-11

Setting 10 MHz reference frequency.................................................................................... 5-11

Setting signal tracking .......................................................................................................... 5-12

Setting full span.................................................................................................................... 5-12

Setting zero span .................................................................................................................. 5-12

Return to the previous span .................................................................................................. 5-12

Zoom in/zoom out ................................................................................................................5-13

Amplitude function...................................................................................................................... 5-14

Setting reference level .......................................................................................................... 5-14

Setting input attenuation.......................................................................................................5-14

Setting amplitude scale.........................................................................................................5-15

Selecting log/linear detector mode ....................................................................................... 5-15

Setting internal amp.............................................................................................................. 5-16

Setting MW amp ..................................................................................................................5-16

Setting the reference level offset .......................................................................................... 5-16

Setting amplitude units.........................................................................................................5-17

Setting amplitude correction................................................................................................. 5-18

Selecting input impedance.................................................................................................... 5-19

Input attenuator..................................................................................................................... 5-19

Measurement function ................................................................................................................. 5-21

X db Down measurement ..................................................................................................... 5-21

Adjacent channel power measurement................................................................................. 5-22

Channel power measurement................................................................................................ 5-23

Occupied bandwidth measurement....................................................................................... 5-24

Intermodulation (TOI) measurement.................................................................................... 5-25

Total power measurement .................................................................................................... 5-26

CCDF measurement ............................................................................................................. 5-27

Harmonic distortion measurement........................................................................................ 5-27

Spectrum emission mask measurement ................................................................................ 5-28

Spurious emissions measurement......................................................................................... 5-29

Average power measurement ............................................................................................... 5-30

Closing the window..............................................................................................................5-30

Averaging measurement....................................................................................................... 5-31

Display function .......................................................................................................................... 5-32

Full Screen............................................................................................................................ 5-32

Display Line ......................................................................................................................... 5-32

Threshold Line ..................................................................................................................... 5-33

Zoom Display....................................................................................................................... 5-33

Screen Title........................................................................................................................... 5-34

White mode .......................................................................................................................... 5-34

Graticule ............................................................................................................................... 5-34

5-1

OPERATING PROCEDURES

Annotation............................................................................................................................ 5-35

Dual Window ....................................................................................................................... 5-35

Text Position......................................................................................................................... 5-35

Auxiliary Level Display ....................................................................................................... 5-35

Screen Note Display.............................................................................................................5-35

Trace function.............................................................................................................................. 5-36

Select trace ........................................................................................................................... 5-36

Clear & Write ....................................................................................................................... 5-36

Max Hold.............................................................................................................................. 5-36

Min Hold .............................................................................................................................. 5-36

View ..................................................................................................................................... 5-37

Blank .................................................................................................................................... 5-37

Trace Array........................................................................................................................... 5-37

Averaging function............................................................................................................... 5-38

Limit line function....................................................................................................................... 5-39

Drawing a limit line.............................................................................................................. 5-39

Setting the PASS/FAIL mode............................................................................................... 5-40

Turn off the Limit Line function .......................................................................................... 5-40

Trigger function........................................................................................................................... 5-41

Trigger source....................................................................................................................... 5-41

Video trigger......................................................................................................................... 5-41

External trigger..................................................................................................................... 5-41

Selecting trigger edge........................................................................................................... 5-42

Trigger delay ........................................................................................................................ 5-42

Coupled function ......................................................................................................................... 5-43

All Auto................................................................................................................................ 5-43

Detector mode ...................................................................................................................... 5-43

Setting averaging method..................................................................................................... 5-44

Setting FFT & Sweep ........................................................................................................... 5-45

BW (bandwidth) function............................................................................................................ 5-46

Auto bandwidth function...................................................................................................... 5-46

Setting the Resolution Bandwidth ........................................................................................ 5-47

Setting the Video Bandwidth................................................................................................ 5-48

Setting the ratio of VBW and RBW ..................................................................................... 5-48

Setting the ratio of Span and RBW ...................................................................................... 5-48

Aux function................................................................................................................................ 5-49

AM demodulation.................................................................................................................5-49

FM demodulation .................................................................................................................5-49

Audio monitor ...................................................................................................................... 5-50

Spectrum display .................................................................................................................. 5-50

Auto Tune............................................................................................................................. 5-50

Sweep function ............................................................................................................................ 5-51

Setting the sweep time..........................................................................................................5-51

Continuous sweep mode....................................................................................................... 5-51

Single sweep mode...............................................................................................................5-52

Setting sweep time accuracy................................................................................................. 5-52

Setting the data points .......................................................................................................... 5-52

System configuration................................................................................................................... 5-53

Setting GPIB address............................................................................................................5-53

RS-232C configuration......................................................................................................... 5-53

TCP/IP configuration............................................................................................................5-54

System information ..............................................................................................................5-54

Preset function ............................................................................................................................. 5-55

Preset .................................................................................................................................... 5-55

Last State .............................................................................................................................. 5-55

Save/Load User State ........................................................................................................... 5-56

Boot On ................................................................................................................................ 5-56

Calibration mode .................................................................................................................. 5-56

File and save function.................................................................................................................. 5-57

Internal memory ................................................................................................................... 5-57

5-2

OPERATING PROCEDURES

Save parameters and waveform............................................................................................ 5-57

File management .................................................................................................................. 5-57

Start key................................................................................................................................ 5-58

Marker function ........................................................................................................................... 5-59

Selecting and changing marker position............................................................................... 5-59

Normal marker ..................................................................................................................... 5-60

Delta marker......................................................................................................................... 5-60

Band Pair .............................................................................................................................. 5-60

Span Pair............................................................................................................................... 5-61

Marker off in reverse order................................................................................................... 5-61

Setting the marker trace........................................................................................................5-61

Delete all markers................................................................................................................. 5-61

Setting the marker readout mode.......................................................................................... 5-62

Setting the marker table........................................................................................................5-62

Setting the marker name....................................................................................................... 5-62

Default marker name............................................................................................................ 5-62

Marker averaging function ................................................................................................... 5-62

Setting parameters using marker values ...................................................................................... 5-63

Marker-> CF/Marker-> Ref.................................................................................................. 5-63

Marker-> Start/Marker-> Stop.............................................................................................. 5-63

Marker-> CFStep/dMarker-> CFStep .................................................................................. 5-63

Dmarker-> Span ................................................................................................................... 5-64

Setting marker function ........................................................................................................ 5-64

Peak search function.................................................................................................................... 5-65

Peak search........................................................................................................................... 5-65

Next Peak search .................................................................................................................. 5-65

Peak Left search/Peak Right search...................................................................................... 5-65

Peak to Peak search .............................................................................................................. 5-66

Continuous Peak search........................................................................................................ 5-66

Setting the Peak Search parameters...................................................................................... 5-66

Tracking generator (option)......................................................................................................... 5-68

Instrument in phase noise measurement mode....................................................................... 5-69

Freq/span function ....................................................................................................................... 5-69

FREQ function ..................................................................................................................... 5-69

SPAN menu.......................................................................................................................... 5-70

AMPL function............................................................................................................................ 5-71

Ref.Value.............................................................................................................................. 5-71

Scale/Div .............................................................................................................................. 5-71

Measurement function ................................................................................................................. 5-72

MEASURE menu................................................................................................................. 5-72

MEASURE Control menu.................................................................................................... 5-72

Marker function ........................................................................................................................... 5-74

Select Marker ....................................................................................................................... 5-74

Normal.................................................................................................................................. 5-74

Delta ..................................................................................................................................... 5-74

RMS Noise ........................................................................................................................... 5-74

Residual FM ......................................................................................................................... 5-75

Marker Trace ........................................................................................................................ 5-75

OFF....................................................................................................................................... 5-75

Marker Table ........................................................................................................................ 5-75

All OFF ................................................................................................................................ 5-75

Display function .......................................................................................................................... 5-76

Full Screen............................................................................................................................ 5-76

Graticule ............................................................................................................................... 5-76

Annotation............................................................................................................................ 5-76

White Mode.......................................................................................................................... 5-76

Sweep function ............................................................................................................................ 5-77

Single.................................................................................................................................... 5-77

Continuous............................................................................................................................ 5-77

Preset function ............................................................................................................................. 5-78

5-3

OPERATING PROCEDURES

Preset .................................................................................................................................... 5-78

5-4

Screen layout

This is the initial screen that you see at start-up.

1

2

3

OPERATING PROCEDURES

8

10

4

5

6

7

9

1 Title window Manufacturer, display model

2 Upper display window Displays screen subject, reference level, scale, attenuation and

marker parameter

3 Parameter window Displays current active menu parameter

4 Wave display window Displays current active waveform

5 Left display window Displays information about trigger and operating mode

6 Lower display window Displays Freq. Info, RBW, VBW, Sweep time, number of points

7 Status display window Displays current job processing status and waveform status

8 Menu name Displays the current soft menu name

9 Soft key menu Displays the available auxiliary function associated with the selected

hard key

10 Effective data / average

number display

Displays the number of signal waveform averages. Displays
confirmation of frequency input.

5-5

OPERATING PROCEDURES

Selecting parameters with touch screen

Because this instrument has a touch-sensitive screen, you can select parameters by pressing either
a soft key (F1–F8, NEXT) or touching the associated screen area.

Toggling values

To toggle between values (for example, [Max Hold] OFF/ON), either press the soft key repeatedly

to toggle, or touch the [OFF] or [ON] box on the associated screen area.

Control using keyboard and mouse

Keyboard

You can control the equipment with an externally connected keyboard by setting the instrument to

Keypad mode i

Keys on the keyboard then corresponds to the instrument as below:

F1–F9 Soft keys (F1–F8) and NEXT (F9) key

0–9 / - / . (period) / Í (backspace)

Left/right cursor keys (← →) Scroll knob

Up/down cursor keys (↑↓) Step key

A–Z Hard keys (refer to the table below)

n the System menu (page 5-54).

Keyboard Instrument

Number keys on the keypad and hard keys

Table 5-1 Hard key equivalents on external keyboard

Hard key Keyboard Hard key Keyboard Hard key Keyboard

FREQ FR DISPLAY DI BW BW

SPAN SP TRACE TRA AUX AU

AMPL AM TRIG TRI SOURCE SO

MEAS ME LIMIT LI SWEEP SW

CONTROL CON COUPLE COU SYSTEM SY

PRESET PRE FUNC FU

FILE FI SAVE SA PRINT PRI

MARKER MA SINGLE SI PEAK PE

MKR > MK

START

ST

Mouse

Soft-key operation can be simulated using a mouse. If the mouse has a wheel, wheel operation
corresponds to the instrument’s scroll knob.

5-6

OPERATING PROCEDURES

Selecting spectrum analysis or phase noise measurement mode

By default, the instrument starts up in spectrum analysis mode.

To toggle between spectrum analysis and phase noise measurement modes, do the following:

MODE

Select the [MODE] hard key on the front panel of the signal analyzer, and then press the

[Spectrum Mode] or [Phase Noise] soft key to select the appropriate operating mode.

Then go to:

page 5-8 for spectrum analysis operation

5-69 for phase noise op

page

eration.

Spectrum Mode

Phase Noise

5-7

Instrument in spectrum analysis measurement mode

Freq/span functions

Frequency is set in either of two modes:

• Center-span mode

• Start-stop mode

The lower and upper span limits are 1 kHz to 3 GHz (3251) / 8 GHz (3252) / 13.2 GHz (3253) /

26.5 GHz (3254).

Use [FREQ] for setting frequency.

Use [SPAN] for setting frequency span.

5-8

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Center-span mode frequency data entry

Setting the center frequency

To set the center frequency, do the following:

FREQ

Center Freq

The step size of the step up/down key is 1/10 of the current frequency span (CF Step mode set to

MANL, page

5-11).

The step size of the scroll knob is 1/500 of the current frequency span.

The span can be changed if the center moves too near the boundary.

Setting the frequency span

To set the frequency span, do the following:

SPAN

Span Width

Press number and ENTER
key. To correct, press

Numeric key

Step key

Scroll knob

←

key.

Numeric key

Step key

Scroll knob

Span range is 10 Hz–3 GHz/6.2 GHz/13.2 GHz/26.5 GHz. It changes in a 1, 2, 5-step sequence:
1 k, 2 k, 5 k, ……, 100 k, 200 k, 500 k, …

The step size of the scroll knob is 1/100 of the current frequency span.

5-9

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Start-stop mode frequency data entry

Setting the start frequency

To set the start frequency, do the following:

FREQ

The step size of the step up/down key is 1/10 of the current frequency span.

The step size of the scroll knob is 1/500 of the current frequency span.

Setting the stop frequency

To set the stop frequency, do the following:

FREQ

Start Freq

Numeric key

Step key

Scroll knob

Stop Freq

Numeric key

Step key

Scroll knob

The step size of the step up/down key is 1/10 of the current frequency span.

The step size of the scroll knob is 1/500 of the current frequency span.

Note: the start and stop frequencies are also determined by setting the center and the span
frequency. For example, if the center frequency is 40 MHz and the span frequency is 20 MHz, the
start and the stop frequency are determined as 30 MHz and 50 MHz respectively.

5-10

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Setting center frequency step

To set the start frequency, do the following:

FREQ

Change the CF Step mode from AUTO to MANL mode by pressing [CF Step].

In CF Step MANL (Manual) mode, the step size can be set by the data entry section (numeric
keys, step keys or scroll knob).

If CF Step [AUTO/MANL] ‘AUTO’ is selected, the CF Step size is 1/10 of the current span.

Setting frequency offset

To set frequency offset, do the following:

FREQ

CF Step
[Auto/Manl]

Freq. Offset

Numeric key

Step key

Scroll knob

Change the Freq. Offset mode from OFF to ON mode by pressing [Freq. Offset]. In Freq. Offset

[ON] mode, the frequency-offset size can be set by the numeric key.

Setting 10 MHz reference frequency

You can choose to synchronize to an external 10 MHz reference frequency:

FREQ 10MHz Ref. [Internal/External]

If you use an external reference frequency, set the 10 MHz Ref to External.

Numeric key

5-11

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Setting signal tracking

The maximum level point always moves to the center position of the horizontal axis when signal
tracking is on.

Signal tracking is ON or OFF.

Note: the span changes to minimum span in the following cases:

1) if the center frequency is less than the minimum frequency (0 Hz) or is greater than the
maximum frequency (3/8/13.2/26.5 GHz)

2) if the start frequency is greater than the stop frequency

3) if the stop frequency is less than the start frequency.

Setting full span

To set full span without affecting other parameters, do the following.

FREQ

Signal Track [OFF / ON]

Set the start frequency to 0 Hz and the stop frequency to 3 GHz/8 GHz/13.2 GHz/26.5 GHz.

Setting zero span

This instrument can operate as a selective level meter in which the horizontal axis is changed to a
time axis by setting the frequency span to 0 Hz.

The rising and falling edges of the signal burst wave can also be observed and measured.

Do either of the following operations to allow the instrument to operate in the zero span
(span = 0 Hz) mode.

SPAN

SPAN

Return to the previous span

The previous span is returned by the following key operation:

SPAN

Zero Span

Span Width Hz

Full Span

0

SPAN

Last Span

5-12

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Zoom in/zoom out

The Zoom In function changes the span from the current span to 1/2 of the current span.

The Zoom Out function changes the span from the current span to 2 times the current span.

The center frequency does not change.

SPAN

Zoom In

Zoom Out

5-13

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

A

A

Amplitude function

The [AMPL] hard key displays soft keys for setting the amplitude.

Setting reference level

Set the reference level (top graticule) by doing the following:

MPL

Ref. Level

Numeric key

Step key

Scroll knob

The step size is one division of the current scale (see Setting Amplitude Scale on

The step size of the scroll knob is 1 dB.

Setting input attenuation

Do the following to set the input attenuator level:

MPL

Change the Atten. mode [AUTO or MANL] by pressing [Attenuation [Auto/Manl]]. In

Atten MANL (manual) mode, the step size of the input attenuator can be set by the numeric keys,

step keys, and scroll knob (range 0 to 55 dB) (see Input Attenuator on

If Atten ‘AUTO’ is selected, the input attenuator is automatically coupled to the current reference
level.

page 5-15).

ttenuation

[Auto/Manl]

Numeric key

Step key

Scroll knob

page 5-19).

5-14

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

A

A

Setting amplitude scale

In log scale, this instrument provides 0.1 to 20 dB/div scales.

In linear scale, the instrument uses the full scale.

To set the amplitude scale, do the following:

• Log Scale Mode

MPL

Scale / Div

Numeric key

Step key

Scroll knob

The amplitude scale is changed into a 1, 2, 5 step sequence by pressing the step key.

The step size of the scroll knob is 0.1 (at 0.1–1.0 dB/div) and 1 (at 1.0–20.0 dB/div).

Selecting log/linear detector mode

To set the amplitude scale to log scale or linear scale, do the following:

Setting log detector

MPL

Setting linear detector

MPL

If the mode is changed between log and linear detector modes, the reference level remains
constant.

Log detector mode uses the dBm reference unit, Linear detector mode uses the Volt reference unit.

Log

Lin

5-15

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

Setting internal amp

Set the internal amp to operate by doing the following:

This function is usable from 1 MHz to 3 GHz.

An input signal level greater than −20 dBm will damage the instrument.

Setting MW amp

Set the MW amp to operate by doing the following:

This function is usable from 30 MHz to 26.5 GHz.

An input signal level greater than −20 dBm will damage the instrument.

AMPL

AMPL

Internal Amp [OFF / ON]

MW Int. Amp [OFF / ON]

Setting the reference level offset

Set the reference level offset by doing the following:

MPL

The reference level offset size is from −300 dB to 300 dB.

Ref. Offset

Numeric key

5-16

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

μ

μ

A

Setting amplitude units

In log scale, this instrument provides eight reference level units: dBm (dBmW), dBmV, dBμV,
dBmA, dBμA, Volts, Watts, Amps.

In linear scale, the only reference level unit is V.

To select one of the reference level units, do the following:

MPL

Units..

dBm

dBmV

V

dB

dBmA

A

dB

Volts

Watts

mps

5-17

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

A

A

Setting amplitude correction

Setting an amplitude correction allows you to specify a correction to the measurement
environment.

The instrument provides four types of amplitude correction.

• Antenna correction

• Cable correction

• Other correction

• User correction

Amplitude correction can perform the four types of correction at the same time or individually.

To set amplitude correction, do the following:

MPL

Correction [OFF/ON]:

Point:

Frequency:

mplitude:

Delete Point:

Find Freq.:

Save:

Delete Corr:

More 1 of 2

select using calibration OFF/ON

select index of calibration data
Range: 1–(present data number +1)

set frequency of calibration

set amplitude calibration value

delete selected calibration data

move to data of frequency calibrated data

save calibrated data into file

delete all calibrated data

To apply corrections individually, do the following:

AMPL

More 1 of 2

Correction
Factors

Correction
Factors

Cable

Other

User

ntenna

Correction Apply [No / Yes]

5-18

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Selecting input impedance

To select the input impedance, do the following:

AMPL

The [Input Z [50/75]] soft key sets input impedance to 50 or 75 ohm.

Input attenuator

To set the input attenuator, do the following:

Input Z [50 ohm / 75 ohm]

Auto mode

When a signal is input with the same level as the reference level, the input attenuator value in the
AUTO mode is controlled so that high accuracy measurements can be made without being
influenced by gain compression, and the noise level can be reduced.

While Auto is selected, the input attenuator is automatically set to the optimum value according to
the reference level:

AMPL

Reference level range Attenuation Auto

25.1 dBm to 30.0 dBm 40

20.1 dBm to 25.0 dBm 35

15.1 dBm to 20.0 dBm 30

10.1 dBm to 15.0 dBm 25

5.1 dBm to 10.0 dBm 20

0.1 dBm to 5.0 dBm 15

Less than 0 dBm 10

Attenuation [AUTO/MANL]

5-19

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Manual setting

When you want to measure a low-level signal by raising the sensitivity, set the input attenuator
manually as shown in the table below:

Reference level range Attenuation Manual

+30 dBm to −170 dBm

+30 dBm to −170 dBm

+30 dBm to −170 dBm

+30 dBm to −170 dBm

+25 dBm to −170 dBm

+20 dBm to −170 dBm

+15 dBm to −170 dBm

+10 dBm to −170 dBm

+5 dBm to −170 dBm

0 dBm to −170 dBm

−5 dBm to −170 dBm

−10 dBm to −170 dBm

55

50

45

40

35

30

25

20

15

10

5

0

Note: you can change values in steps of 5 dB and 10 dB only.

5-20

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Measurement function

The instrument provides the following measurements:

• X dB Down

• Adjacent Channel Power

• Channel Power

• Occupied Bandwidth

• Harmonic Distortion

• CCDF

• Intermodulation (TOI)

• Total Power

• Spectrum Emission Mask

• Spurious Emissions

• Average Power (Burst Power)

• Multi-channel Power

Make the measurement in single or continuous sweep mode by pressing [SWEEP], [Continuous]
or [SWEEP], [Single]. Close each measurement by pressing the [Meas. Off] soft key.

X db Down measurement

The X dB Down function displays the frequency difference between a reference marker (◊) and
another marker (

The relative dB range that can be specified for X from the screen dynamic range is selected using
the step key or scroll knob. The default values are 3 dB and 60 dB. If the measurement of point A
and point B is done at the same time, the shape factor of the signal can be measured.

To use the X dB Down measurement function, do the following:

MEAS

→ ←) that is X dB down from the reference marker.

PointA/B X[dB]

Shape Factor [OFF/ON]:

Meas. Avg. Reset:

Meas. Avg..

XdB Down

(A/B):

CONTROL

set dB difference from marker to readout point

set shape coefficient between two measurement points

reset average number

Meas. Average [OFF/ON]:

set average on or off

Meas. Avg. Mode [EXP/REP]:

Meas. Avg. Reset:

Meas. Avg. Count:

5-21

set average mode

reset average number

set average number

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

A

A

Adjacent channel power measurement

The ACP measurement function measures the center of the signal (designated by three marker
lines) and the power of adjacent channels.

MEAS

dj. Channel Pwr

Span:

Main Ch. BW:

dj. Ch. BW:

Ch. Spacing:

Max Hold [OFF/ON]:

Trc Average [OFF/ON:

dj. Ch. Num:

Meas. Avg..

CONTROL

set basic span bandwidth

set basic channel bandwidth

set adjacent channel bandwidth

set distance between basic and adjacent channels

set active trace to max. hold mode

initiate averaging routine to smooth trace

set between 1 and 6 adjacent channels

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

set average on or off

set average mode

Meas. Avg. Reset:

Meas. Avg. Count:

reset average number

set average number

Measurement configuration is done by using the data entry section (numeric keys, step keys or

scroll knob) after each soft key [Main C h. BW ], [ Adj. Ch. BW ], [ Ch. Spacing ] is pressed. Adjust

the BW and spacing by observing the messages at the bottom of the result window.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

5-22

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Channel power measurement

Measures the power and power spectral density in the channel bandwidth specified.

MEAS

Channel Power

Span:

Integ. BW:

Max Hold [OFF/ON]:

Trc Average [OFF/ON:

Meas. Avg..

CONTROL

set reference span

set measurement bandwidth

set Max Hold on or off

initiate averaging routine to smooth trace

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

set average on or off

set average mode

reset average number

set average number

Configure the measurement by using the data entry section (numeric keys, step keys or scroll
knob) after each soft key is pressed. The BW and spacing can be adjusted by observing the
message at the bottom of the result window.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

You must set the center frequency, reference level, and channel bandwidth.

5-23

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Occupied bandwidth measurement

Measures the occupied bandwidth of the signal being displayed on the screen.

The instrument has an OBW (occupied bandwidth) measurement function that uses the
measurement data displayed on the screen. It calculates the frequency band that contains a
specified percentage of the total power. The default value is 99%, and a measurement range
between 0.01% and 100% can be specified.

The results of the OBW and the occupied bandwidth channel power (OBW CHP) are shown in the
result display area.

OBW measurement procedure

1 Set the center frequency and normal marker to the known carrier frequency and set the

frequency, span, resolution bandwidth (RBW), and sweep time to AUTO mode.

2 Calculate the occupied bandwidth by doing the following:

MEAS

Span:

Percentage:

Max Hold [OFF/ON]:

Trc Average [OFF/ON:

Meas. Avg. Reset:

Meas. Avg..

Occupied BW

CONTROL

set reference span

set percentage of occupied bandwidth

set Max Hold on or off

initiate averaging routine to smooth trace

reset average number

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

set average on or off

set average mode

reset average number

set average number

3 To change the percentage of occupied bandwidth, use the numeric keys to set a new

percentage. The measurement lines adjust automatically.

5-24

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Intermodulation (TOI) measurement

Measures the IP3 in the span specified.

MEAS

Span:

Max Hold [OFF/ON]:

Trc Avg [OFF/ON]:

Meas. Avg. Reset:

Meas. Avg..

Intermodulation

set reference span

set Max Hold on or off

initiate averaging routine to smooth trace

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

CONTROL

reset average number

set average on or off

set average mode

reset average number

set average number

Choose the measurement configuration by using the data entry section (numeric keys, step keys or

scroll knob) after each soft key [Span] is pressed. Adjust the BW and spacing by noting the

warning or error message at the bottom of the results window.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

5-25

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Total power measurement

Measures the power and power spectral density in the span specified..

MEAS

Span:

Max Hold [OFF/ON]:

Trc Avg [OFF/ON]:

Meas. Avg. Reset:

Meas. Avg..

Total Power

CONTROL

set reference span

set Max Hold on or off

initiate averaging routine to smooth trace

reset average number

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

set average on or off

set average mode

reset average number

set average number

Choose the measurement configuration by using the data entry section (numeric keys, step keys or

scroll knob) after each soft key [Span] is pressed. Adjust the BW and spacing by noting the

warning or error message at the bottom of the results window.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

5-26

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

CCDF measurement

This function measures the CCDF (complementary cumulative distribution function) of the present
center frequency at a span of 5 MHz.

The horizontal axis shows the dB value above average power and the vertical axis shows the time
percentage value above the assigned value.

• The green line shows the Gaussian wave in the CCDF measurement display.

• The yellow line shows the current measured wave.

• Press [DISPLAY], [Ref. Trace [ON]] to show the reference wave as a purple line. Press

[DISPLAY], [Store Ref. Trace] to save the present wave as the reference wave.

• Press [CONTROL], [Counts], then set the point number of the accumulated data. Input

range is from 1 kpt to 4000 kpt.

• Use [BW], [RBW] in CCDF measurement mode to set the 3 dB bandwidth between 10 kHz

and 5 MHz.

• Change the measured bandwidth using [SPAN], [Scale/Div].

For CCDF measurement and setting the display, use the following keys:

MEAS CCDF Counts CONTROL

DISPLAY

Harmonic distortion measurement

This function measures the harmonics of a single carrier signal and computes the total harmonic
distortion. The carrier signal becomes the maximum peak on the display and the total harmonic
distortion is calculated from the measured harmonics.

When measuring the nth harmonic, the analyzer chooses the optimum resolution bandwidth
(RBW) to capture the best harmonic signal.

MEAS

Harmonics [n]:

Restart:

Harm. Distortion

Store Ref. Trace

Ref. Trace [OFF, ON]

Gaussian Trace [OFF, ON]

CONTROL

set number of harmonics

restart measurement

Stop:

stop measurement

‘Harmonics number’ means the number of nth harmonics. The harmonics number can be set
between 2 and 5; the default is 5. The recommended SPAN value is less than 4 MHz for an
accurate measurement.

5-27

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Spectrum emission mask measurement

Measures the pass/fail state according to the reference channel mask.

MEAS

Spec. Emi. Mask

CONTROL

Meas. Type

Ref. Channel..

Radio Std.

Meas. Avg..

set measurement type

set the value of reference channel, mask

set the value of reference channel, mask Offset Table..

set radio standard

reset average number Meas. Avg. Reset:

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

set average on or off

set average mode

reset average number

set average number

The measurement type is either Total Pwr Ref method using Total Power or PSD Ref method
using Power Spectral Density.

This equipment supports the following four standards for SEM.

• WLAN 802.11a/g

• WLAN 802.11b/T

• W-CDMA (3GPP) Base

• W-CDMA (3GPP) Mobile

Using the offset table, you can set six regions (A to F), sweep range, RBW, Absolute / Relative
Mask Region, and Fail application.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

5-28

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Spurious emissions measurement

Measures the pass/fail state of spurii according to the Range Table.

MEAS

Spurious Emissions

CONTROL

Restart:

Range Table:

Meas. Avg..

restart search for spurious emissions

stop measurement Stop:

set values in Range Table

reset average number Meas. Avg. Reset:

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

set average on or off

set average mode

reset average number

set average number

Using the range table, you can distinguish a total of 200 ranges (range setting duplicates allowed)
and set ranges such as RBW, VBW, sweep time, input attenuation and peak parameters.

The measured spurii are displayed by amplitude, with 10 numbers for each range in the bottom
table. Spurii that exceed the limits are displayed in red.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

5-29

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

A

Average power measurement

Measures the average power of the burst signals at the frequency specified.

MEAS

verage Power

CONTROL

Meas Method:

Rel. Threshold:

Sweep Time:

Meas. Avg. Reset:

Meas. Avg..

set measure method to meas or threshold

set relative threshold level

set sweep time for displayed span

reset average number

Meas. Average [OFF/ON]:

Meas. Avg. Mode [Exp/Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

set average on or off

set average mode

reset average number

set average number

To measure Average Power, set the span to zero span at the current center frequency. You need to
have set the center frequency and reference previously.

This mode measurement operates only when the input is a burst signal.

For a more stable measurement value, find the average measurement value (p

age 5-31) by setting

[Meas. Average] ON.

Closing the window

The present measuring window is closed and measurement mode is ended.

MEAS

Meas. Off

5-30

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Averaging measurement

A measurement is averaged the designated number of times and then a stable measurement result
is displayed. To set the averaging measurement, do the following:

CONTROL

Meas. Average [OFF / ON]:

Meas. Avg. Mode [Exp / Rep]:

Meas. Avg. Reset:

Meas. Avg. Count:

sets Average on or off.

sets Average Mode.

resets Average Number.

sets Average Number

Meas. Avg. Repeat Mode: if the specified averaging number is exceeded, all existing data is reset
and then averaging restarts.

Meas. Avg. Exponential Mode: if the specified averaging number is exceeded, only the first data
obtained is deleted, and then averaging restarts, including the newly entered data.

5-31

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Display function

The instrument provides the following functions related to the screen display:

Full Screen Displays the maximum enlarged graticule

Display Line Displays the horizontal line at the top of the graticule

Threshold Line Displays the horizontal line at the bottom of the graticule

Zoom Display Displays the enlarged part of the signal waveform under the screen

Screen Title Edits the title of the screen

White Mode Economy mode for screen save and printing

Graticule Displays a graticule behind the signal waveform.

Annotation Displays information about the waveform in the annotation window at

Dual Windows Divides the display into two screens. Freezes the signal waveform on

Text Position Sets the position of the parameter window on the screen

Level Display Displays the value of the level corresponding to the graticule at the left

bottom left of the screen

one screen and displays its progress on the other.

of the display.

Full Screen

Full Screen enlarges the graticule to fill the screen. The left and bottom display windows and the
soft keys are not displayed.

To return to normal screen status, press any key.

Display Line

The display line is a horizontal cursor line that runs across the screen for making level

comparisons. [Display Value] allows you to set it between the reference level and the lowest

level, using the numeric keys, step keys or scroll knob.

[Display Line [OFF]] removes the display line from the screen.

DISPLAY

DISPLAY

Display Value

Display Line [OFF/ON]

Full Screen

Numeric key

Step key

The step size of the step up/down key is one division of the vertical range.

The step size of the scroll knob is 0.1 dB.

5-32

Scroll knob

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Threshold Line

The threshold line is a horizontal line above which the waveform is displayed. [Threshold Value]

allows you to set it between the reference level and the lowest level, using the numeric keys, step

keys or scroll knob. [Threshold Line [OFF]] removes the threshold line from the screen.

DISPLAY

The step size of the step/up down keys is one division of the vertical range.

The step size of the scroll knob is 0.1 dB.

Threshold Value

Threshold Line [OFF/ON]

Numeric key

Step key

Scroll knob

Zoom Display

You can expand part of the display in order to view it more clearly. The expanded part displays in
a separate window.

Zoom Center: DISPLAY

Zoom Span:

Zoom Display [OFF/ON]:

set Zoom center frequency

set Zoom span

set Zoom display on or off

5-33

Screen Title

You can label the current screen displaying the spectrum, or the waveform, with this function.
You can use the screen title as a filename for a printer and file function (see Filename on
page

hen you press [Screen Title], the screen title part changes to the edit window, and an edit menu

W
appears in the soft menu area. Use this menu to edit the screen title.

If you only want to correct a screen title, use the step key to move the cursor to the correction
position. Any key operation except for the step key initializes the character bar.

Use the scroll knob to select the character for input. The character bar appears in the status
window at the bottom of the graticule, and the character can be selected using the scroll knob.

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

5-58).

White mode

In this mode, the screen background color changes to white to save ink or toner.

DISPLAY

Insert:

DISPLAY

Done:

Delete:

Back Space:

→

←

More 1 of 3

back to the former menu. If any letter string is selected, it is
set to Default name.

delete the letter after the cursor

delete the letter before the cursor

add the selected character at the cursor position

move the cursor to the right

move the cursor to the left

Screen Title

White Mode

More 1 of 3

[OFF/ON]

Graticule

This menu selects a full graticule, a pair of orthogonal lines that define the center of the display, or
OFF.

DISPLAY

More 1 of 3

Graticule

[OFF/Full/Center]

5-34

Annotation

A

This key selects removes or displays all on-screen annotation. When annotation is OFF, the
display is enlarged.

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Dual Window

This key divides the display into two. It fixes the signal waveform on the lower screen and
displays the progress of the signal waveform on the other screen.

To select which window shows the changing waveform, do the following:

Text Position

This changes the position of the signal parameter text that appears on the graticule.

DISPLAY

DISPLAY

DISPLAY

More 1 of 3

More 1 of 3

More 1 of 3

nnotation

[OFF/ON]

Dual Windows

[OFF/ON]

Select Window

[Top/Bottom]

DISPLAY

Auxiliary Level Display

This displays the auxiliary value of level on the left of the display.

DISPLAY

Screen Note Display

This displays text that you can insert as required.

DISPLAY

More 1 of 3

More 1 of 3

More 2 of 3

Text Position

[Top/Center/Bottom]

Grid Test [ON/OFF]

Screen Note

Use the same text insertion procedure as for Screen Title (page 5-34).

5-35

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Trace function

The [TRACE] hard key displays the menu for the trace function.

Select trace

The instrument provides three trace memories, A, B and C.

Clear & Write

To change the waveform to Clear & Write status in the selected trace memory, select the following
menu:

Press [Clear & Write] to overwrite the existing trace memory data with new data.

Max Hold

New data for each trace point is compared with the previous data, and the level with the higher
value is stored and displayed. The signal waveform accumulates the maximum values for each
point.

TRACE

TRACE

TRACE

Select Trace [A / B / C]

Clear&Write

Max Hold

Min Hold

Max Hold is displayed in the status display window.

The new data for each trace point is compared with previous data, and the level with the lower
value is stored and displayed. The signal waveform accumulates the minimum values for each
point.

TRACE

Min Hold is displayed in the status display window.

Min Hold

5-36

View

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

When [View] is pressed, it saves the current trace signal waveform and displays the stored trace on

the screen. The signal waveform is fixed.

View is displayed in the status display window.
To return to the normal write mode, press [Clear & Write].

Blank

When this key is pressed, trace data is erased from the screen, but the contents of the memory still
remain.

If you press [View], Blank is redisplayed.

Blank is displayed in the status display window.

Trace Array

Trace Array selects which trace to display in front when several traces are superimposed.

TRACE

TRACE

TRACE

View

Blank

More 1 of 2 TraceA First

TraceB First

TraceC First

5-37

OPERATING PROCEDURES — SPECTRUM ANALYSIS MODE

Averaging function

The averaging function calculates the average data at each vertical axis point for each sweep, and
displays the results. It improves the S/N ratio, depending on the averaging rate and the number of
sweep repetitions.

TRACE

More 1 of 2

Trc Average [OFF/ON]

Trc Avg. Mode [Exp/Rep]

Trc Avg. Reset

Trc Avg. Count

See Setting ave
[Trc Average [OFF/ON]] activates an averaging function that smoothes the trace display by

averaging the digital data after analog to digital conversion at each sweep, without narrowing the
video bandwidth (VBW).

Averaging by video filter has the disadvantage that the sweep time becomes longer when the video
bandwidth is narrowed to improve the averaging effect.

raging method on page 5-44 to learn more about averaging methods.

5-38