Marconi 2023manual 电路图.pdf

AM/FM SIGNAL GENERATORS 2023A, 2023B, 2025 Operating Manual Document part no. 46892/373 RadioFans.CN 收音机爱 好者资料库 i AM/FM SIGNAL GENERATOR 2023A 2023B 9 kHz 1.2 GHz 9 kHz 2.05 GHz 2025 9 kHz 2.51 GHz Includes information on: Option 1: No attenuator Option 2: DC operation Option 3: High power Option 4: High stability frequency standard Option 5: Rear panel connectors Option 7: Fast pulse modulation Option 9: Internal pulse generator Option 10: 1 V peak mod input Option 11: Fast pulse and high power Option 12: SINAD measurement This manual applies to instruments with software issues of 1.01 and higher. 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). Printed in the UK Manual part no. 46882/373 Issue 12 24 February 2009 RadioFans.CN 收音机爱 好者资料库 ii About this manual This manual explains how to use the 2023A, 2023B and 2025 AM/FM Signal Generators. Intended audience Persons engaged on work relating to equipment who have a need for accurately-generated signals in the VHF and UHF spectrum. Structure Chapter 1 Main features and specifications. Chapter 2 Installation details. Chapter 3 Operation for the experienced user. Chapter 4 Detailed operation including first time usage. Chapter 5 GPIB operation with keywords and sample programs. Chapter 6 Brief technical description. Chapter 7 Instructions for doing acceptance testing. Annex A Option 7 Fast pulse modulation. Annex B Option 11 Fast pulse and high power. Annex C Option 100 Internal fixed pulse generator. Document conventions The following conventions apply throughout this manual: RF OUTPUT Titles marked on the instruments front panel are shown in capital letters MENU Key titles are as shown on the key-caps in square brackets Carr Freq Messages on the display are shown in italic letters. Associated publications Other publications covering specific aspects of this equipment are: Maintenance Manual (46882/377) Covers maintenance and repair of the equipment. Service Manual (46880/088) Consists of Operating Manual (this document) plus Maintenance Manual. RadioFans.CN 收音机爱 好者资料库 iii CONTENTS Preface Precautions Chapter 1 GENERAL INFORMATION Chapter 2 INSTALLATION Chapter 3 PRINCIPLES OF OPERATION Chapter 4 LOCAL OPERATION Chapter 5 REMOTE OPERATION Chapter 6 TECHNICAL DESCRIPTION Chapter 7 ACCEPTANCE TESTING Annex A OPTION 7 FAST PULSE MODULATION Annex B OPTION 11 FAST PULSE AND HIGH POWER Annex C OPTION 100 INTERNAL FIXED PULSE GENERATOR Index Note: OPTION 9 (INTERNAL PULSE GENERATOR) and OPTION 12 (SINAD MEASUREMENT) are included in Chapter 4. iv Preface Patent protection The 2023A, 2023B and 2025 Signal Generators are protected by the following patents: EP 0322139 GB 2214012 US 4870384 EP 0125790 GB 2140232 US 4609881 v Precautions These terms have specific meanings in this manual: WARNING information to prevent personal injury. information to prevent damage to the equipment. important general information. Hazard symbols 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 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 I and 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 Performance data 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. WARNING Electrical hazards (AC supply voltage) 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 user- serviceable parts inside. Refer all servicing to qualified personnel. See list of Service Centers at . PRECAUTIONS vi Fuses Note that the internal supply fuse is in series with the live conductor of the supply lead. If connection is made to a 2-pin unpolarized supply socket, it is possible for the fuse to become transposed to the neutral conductor, in which case, parts of the equipment could remain at supply potential even after the fuse has ruptured. WARNING Fire hazard 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. See under Performance data in Chapter 1 for power requirements. WARNING 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 Beryllia Beryllia (beryllium oxide) is used in the construction of some of the components in this equipment. This material, when in the form of fine dust or vapor and inhaled into the lungs, can cause a respiratory disease. In its solid form, as used here, it can be handled quite safely although it is prudent to avoid handling conditions which promote dust formation by surface abrasion. Because of this hazard, you are advised to be very careful in removing and disposing of these components. Do not put them in the general industrial or domestic waste or dispatch them by post. They should be separately and securely packed and clearly identified to show the nature of the hazard and then disposed of in a safe manner by an authorized toxic waste contractor. WARNING Beryllium copper 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. WARNING Tilt facility When the instrument is in the tilt position, it is advisable, for stability reasons, not to stack other instruments on top of it. Static sensitive components This equipment contains static sensitive components which may be damaged by handling - refer to the Maintenance Manual for handling precautions. PRECAUTIONS vii Suitability for use This equipment has been designed and manufactured by Aeroflex to generate low-power RF signals for testing radio communications apparatus. 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. PRECAUTIONS viii Prcautions Les termes suivants ont, dans ce manuel, des significations particulires: WARNING contient des informations pour viter toute blessure au personnel. contient des informations pour viter les dommages aux quipements. contient dimportantes informations dordre gnral. Symboles signalant un risque La signification des symboles de danger apparaissant sur lquipement et dans la documentation est la suivante: Symbole Nature du risque Reportez-vous au manuel dutilisation quand ce symbole apparat sur linstrument. Familiarisez-vous avec la nature du danger et la conduite tenir. Tension dangereuse Danger produits toxiques Conditions gnrales dutilisation Ce produit a t conu et test pour tre conforme aux exigences des normes CEI/EN61010-1 “Rgles de scurit pour appareils lectriques de mesurage, de rgulation et de laboratoire”, pour des quipements Classe I, portables et pour une utilisation dans un environnement de pollution de niveau 2. Cet quipement est conu pour fonctionner partir dune alimentation de catgorie I et II. Cet quipement doit tre protg de lintroduction de liquides ainsi que des prcipitations deau, de neige, etc. Lorsquon transporte cet quipement dun environnement chaud vers un environnement froid, il est important de laisser lquipement se stabiliser en temprature avant de le connecter une alimentation afin dviter toute formation de condensation. Lappareil doit tre utilis uniquement dans le cadre des conditions denvironnement spcifies dans Performance data dans le chapitre 1 du manuel dutilisation, toute autre utilisation peut endommager les systmes de protection. Ce produit nest pas garanti pour fonctionner dans des atmosphres dangereuses ou pour un usage mdical. Si lquipement doit tre utilis pour des applications en relation avec la scurit, par exemple des applications militaires ou aronautiques, la compatibilit du produit doit tre tablie et approuve par une personne comptente. WARNING Scurit lectrique (tension dalimentation alternative) Cet appareil est protg conformment la norme CEI de scurit Classe 1, cest-dire que sa prise secteur comporte un fil de protection la terre. Pour maintenir cette protection, le cble dalimentation doit toujours tre branch la source dalimentation par lintermdiaire dune prise comportant une borne de terre. Notez que les filtres dalimentation contiennent des condensateurs qui peuvent encore tre chargs lorsque lappareil est dbranch. Bien que lnergie contenue soit conforme aux exigences de scurit, il est possible de ressentir un lger choc si lon touche les bornes sitt aprs dbranchement. PRECAUTIONS ix Ne dmontez pas le capot de linstrument, car ceci peut provoquer des blessures. Il ny a pas de pices remplaables par lutilisateur lintrieur. Faites effectuer toute rparation par du personnel qualifi. Contacter un des Centres de Maintenance Internationaux . Fusibles Notez que le fusible dalimentation interne est en srie avec la phase du cble dalimentation. Si la prise dalimentation comporte deux bornes non polarises, il est possible de connecter le fusible au neutre. Dans ce cas, certaines parties de lappareil peuvent rester un certain potentiel mme aprs coupure du fusible. WARNING ! Risque lie au feu Lors du remplacement des fusibles vrifiez lexactitude de leur type et de leur valeur. Si le cable dalimentation comporte une prise avec fusible intgr, assurez vous que sa valeur est compatible avec les besoins en courant de lappareil. Pour la consommation, reportez vous au chapitre 1 Performance data. WARNING Danger produits toxiques Certains composants utiliss dans cet appareil peuvent contenir des rsines et dautres matires qui dgagent des fumes toxiques lors de leur incinration. Les prcautions dusages doivent donc tre prises lorsquon se dbarrasse de ce type de composant. WARNING Le Beryllia Le Bryllia (oxyde de Bryllium) entre dans la composition de certains composants de cet appareil. Cette matire peut, lorsquelle est inhale sous forme de vapeur ou de fine poussire, tre la cause de maladies respiratoires. Sous sa forme solide, comme cest le cas ici, cette matire peut tre manipule sans risque, bien quil soit conseill dviter toute manipulation pouvant entraner la formation de poussire par abrasion de la surface. Il est donc conseill, pour viter ce risque, de prendre les prcautions requises pour retirer ces composants et sen dbarrasser. Ne les jetez pas avec les dchets industriels ou domestiques ou ne les envoyez pas par la poste. Il faut les emballer sparment et solidement et bien indiquer la nature du risque avant de les cder, avec prcautions, une entreprise spcialise dans le traitement de dchets toxiques. WARNING Bronze au bryllium Dans cet quipement,certaines pices mcaniques sont base de bronze au bryllium. Il sagit dun alliage dans lequel le pourcentage de bryllium ne dpasse pas 5%. Il ne prsente aucun danger en utilisation normale. Toutefois, cet alliage ne doit pas tre travaill, soud ou soumis un processus qui implique lutilisation dune source de chaleur. En cas de destruction, il sera entrepos dans un container spcial. IL ne devra pas tre dtruit par incinration. PRECAUTIONS x WARNING Position incline Lorsque lappareil est dans une position incline, il est recommand, pour des raisons des stabilit, de ne pas y empiler dautres appareils. Utilisation Cet quipement a t conu et fabriqu par Aeroflex pour gnrer des signaux RF de faible puissance pour le test dappareils de radio communications. La protection de lquipement peut tre altre sil nest pas utilis dans les conditions spcifies par Aeroflex. Aeroflex na aucun contrle sur lusage de linstrument, et ne pourra tre tenu pour responsable en cas dvnement survenant suite une utilisation diffrente de celle prvue. PRECAUTIONS xi Vorsichtsmanahmen Diese Hinweise haben eine bestimmte Bedeutung in diesem Handbuch: WARNING dienen zur Vermeidung von Verletzungsrisiken. dienen dem Schutz der Gerte. enthalten wichtige Informationen. Gefahrensymbole Die Bedeutung der Gefahrensymbole auf den Gerten und in der Dokumentation ist wie folgt: Symbol Gefahrenart Beziehen Sie sich auf die Bedienungsanleitung wenn das Messgert mit diesem Symbol markiert ist. Machen Sie sich mit der Art der Gefahr und den Aktionen die getroffen werden mssen bekannt. Gefhrliche Spannung Warnung vor giftigen Substanzen Allgemeine Hinweise zur Verwendung Dieses Produkt wurde entsprechend den Anforderungen von IEC/EN61010-1