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1、INSTRUCTION BOOK OPERATING INSTRUCTIONS SERIES 4201 MULTI-CHANNEL RF DIRECTIONAL THRULINEWATTMETER Copyright 1997 by Bird Electronic Corporation Instruction Book Part Number 920-4201S Revision A Thrulineis a Registered Trademark of Bird Electronic Corporation Electronic Corporation Cleveland (Solon)
2、 Ohio USA RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 Safety Precautions General Safety Precautions The following are general safety precautions that are not necessarily related to any specific part or procedure, and do not necessarily appear elsewhere in this publication. These precautions must
3、 be thoroughly understood, and apply to all phases of operation and maintenance. Keep Away From Live Circuits Operating personnel must at all times observe general safety precautions. Do not replace components inside equipment with the high voltage supply turned on. To avoid casualties, always remov
4、e power. Shock Hazard Do not attempt to disconnect an RF transmission line while RF power is present. Radiated RF power is a potential health hazard. Resuscitation Personnel working with or near high voltages should be familiar with modern methods of resuscitation. Safety Symbols WARNING Warning not
5、es call attention to a procedure, which if not performed correctly, could result in personal injury. CAUTION Caution notes call attention to a procedure, which if not performed correctly, could result in damage to the equipment. This symbol appears on the equipment indicating there is important info
6、rmation in the instruction manual regarding that particular area. +Note: Calls attention to supplemental information. Series 4201 Warning Statements The following safety warnings appear in the text where there is danger to operating and maintenance personnel, and are repeated here for emphasis. WARN
7、ING Leaking RF energy is a potential health hazard. Never attempt to connect or disconnect equipment from the transmission line while RF power is being applied. Severe burns, electrical shock, or death can occur. Series 4201 Caution Statements The following equipment cautions appear in the text when
8、ever the equipment is in danger of damage and are repeated here for emphasis. CAUTION Do not drop the instrument or Plug-In elements. The meter may be damaged, or the accuracy of the elements could be affected. CAUTION Do not attempt to check the microammeters with an ohmmeter. Damage to the movemen
9、t or pointer will result. i RadioFans.CN 收音机爱 好者资料库 USAGE ANY USE OF THIS INSTRUMENT IN A MANNER NOT SPECIFIED BY THE MANUFACTURER MAY IMPAIR THE INSTRUMENTS SAFETY PROTECTION. USO EL USO DE ESTE INSTRUMENTO DE MANERA NO ESPECIFICADA POR EL FABRICANTE, PUEDE ANULAR LA PROTECCIN DE SEGURIDAD DEL IN-
10、STRUMENTO. BENUTZUNG WIRD DAS GERT AUF ANDERE WEISE VERWENDET ALS VOM HERSTELLER BESCHRIEBEN, KANN DIE GERTESICHERHEIT BEEINTRCHTIGT WER- DEN. UTILISATION TOUTE UTILISATION DE CET INSTRUMENT QUI NEST PAS EXPLICITEMENT PRVUE PAR LE FABRICANTPEUT ENDOMMAGER LE DISPOSITIF DE PROTECTION DE LINSTRUMENT.
11、IMPIEGO QUALORA QUESTO STRUMENTO VENISSE UTILIZZATO IN MODO DIVERSO DA COME SPECIFICATO DAL PRODUTTORE LA PROZIONE DI SICUREZZA POTREBBE VENIRNE COMPROMESSA. SERVICE SERVICING INSTRUCTIONS ARE FOR USE BY SERVICE -TRAINED PERSON- NEL ONLY. TO AVOID DANGEROUS ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICI
12、NG UNLESS QUALIFIED TO DO SO. SERVICIO LAS INSTRUCCIONES DE SERVICIO SON PARA USO EXCLUSIVO DEL PER- SONAL DE SERVICIO CAPACITADO. PARA EVITAR EL PELIGRO DE DESCAR- GAS ELCTRICAS, NO REALICE NINGN SERVICIO A MENOS QUE EST CAPACITADO PARA HACERIO. WARTUNG ANWEISUNGEN FR DIE WARTUNG DES GERTES GELTEN
13、NUR FR GESCHULTES FACHPERSONAL. ZUR VERMEIDUNG GEFHRLICHE, ELEKTRISCHE SCHOCKS, SIND WAR- TUNGSARBEITEN AUSSCHLIELICH VON QUALIFIZIERTEM SERVICEPER- SONAL DURCHZUFHREN. ENTRENTIEN LEMPLOI DES INSTRUCTIONS DENTRETIEN DOIT TRE RSERV AU PER- SONNEL FORM AUX OPRATIONS DENTRETIEN. POUR PRVENIR UN CHOC LE
14、CTRIQUE DANGEREUX, NE PAS EFFECTUER DENTRETIEN SI LON NA PAS T QUALIFI POUR CE FAIRE. Bird Series 4201 Multi-Channel RF Directional Wattmeter ii ASSISTENZA TECNICA LE ISTRUZIONI RELATIVE ALLASSISTENZA SONO PREVISTE ESCLUSI- VAMENTE PER IL PERSONALE OPPORTUNAMENTE ADDESTRATO. PER EVI- TARE PERICOLOSE
15、 SCOSSE ELETTRICHE NON EFFETTUARRE ALCUNA RIPARAZIONE A MENO CHE QUALIFICATI A FARLA. RF VOLTAGE MAY BE PRESENT IN RF ELEMENT SOCKET - KEEP ELEMENT IN SOCKET DURING OPERATION. DE LA TENSION H.F. PEAT TRE PRSENTE DANS LA PRISE DE LLMENT H.F. - CONSERVER LLMENT DANS LA PRISE LORS DE LEMPLOI. HF-SPANNU
16、NG KANN IN DER HF-ELEMENT-BUCHSE ANSTEHEN - ELE- MENT WHREND DES BETRIEBS EINGESTPSELT LASSEN. PUEDE HABER VOLTAJE RF EN EL ENCHUFE DEL ELEMENTO RF - MAN- TENGA EL ELEMENTO EN EL ENCHUFE DURANTE LA OPERACION. IL PORTAELEMENTO RF PU PRESENTARE VOLTAGGIO RF - TENERE LELE- MENTO NELLA PRESA DURANTE IL
17、FUNZIONAMENTO. iii Bird Series 4201 Multi-Channel RF Directional Wattmeter iv About This Manual This instruction book covers the Series 4201 Multi-Channel RF Directional Wattmeters. Specifically, the Models 4201A501, 4201A502, 4201A503, and 4201A504. This instruction book is arranged so that essenti
18、al information on safety appears in the front of the book. Reading the Safety Precautions section before operating the equipment is strongly advised. The remainder of this instruction book is divided into Chapters. At the beginning of each chapter, a general overview describes the contents of that c
19、hapter. Operation First time users should read Chapter 1 - Introduction, and Chapter 2 - Installation. to get an overview of equipment capabilities and installation. An experienced operator can refer to Chapter 3 - Operating Instructions. All instructions necessary to operate the equipment appear in
20、 this chapter. Maintenance All personnel should be familiar with preventative maintenance found in Chapter 4 - Maintenance. If a failure should occur, the troubleshooting section will aid in isolating and repairing the failure. Parts For location of major assemblies or parts, refer to the parts list
21、s and associated drawings in Chapter 4 - Maintenance. Changes To This Manual We have made every effort to ensure this manual is accurate. If you should discover any errors or if you have suggestions for improving this manual, please send your comments to our factory. This manual may be periodically
22、updated. When inquiring about updates to this manual refer to the part number and revision level on the title page. v Bird Series 4201 Multi-Channel RF Directional Wattmeter vi Table Of Contents Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Warning Stateme
23、nts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Caution Statements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii About This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v Introduction. . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . .1 Wattmeter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Purpose and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . .1 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Models: 4201A501, 4201A502. . . . . . . . . . . . . . . . . . . . . . . . . . .2 Models: 4201A503, 4201A504. . . . . . . . . . . . . . . . . . . . . . . . . . .2 Items Required But Not Supplied. .
26、 . . . . . . . . . . . . . . . . . . . . . . . . .2 Models: 4201A501, 4201A502. . . . . . . . . . . . . . . . . . . . . . . . . . .2 Models: 4201A503, 4201A504. . . . . . . . . . . . . . . . . . . . . . . . . . .2 Power Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、 .4 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Site and Shelter Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Unpacking and Inspection. .
28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Power Sensor or Line Section. . . . . . . . . . . . . . . . . . . . . . . . . . .5 Installation of Meter. . . . . . . . . . . . . . . . . . . . . . . . . .
29、. . . . . . . .6 Phono Plugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Operating Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Description of Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Models 4201A501
30、and 4201A503. . . . . . . . . . . . . . . . . . . . . . . . .9 Models 4201A502 and 4201A504. . . . . . . . . . . . . . . . . . . . . . . . .9 Zeroing Meters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Using The Wattmeter. . . . . . . . . . . . . . . . . . . . . . . .
31、. . . . . . . . . . . 10 vii Models 4201A501 and 4201A502. . . . . . . . . . . . . . . . . . . . . . . . . .10 Models 4201A503 and 4201A504. . . . . . . . . . . . . . . . . . . . . . . . . .10 VSWR Conversion Nomograph. . . . . . . . . . . . . . . . . . . . . . . . . . .11 Maintenance. . . . . . . .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Customer Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Sales/Repair Facility. . . . . . . . . . . . . . . . . .
33、 . . . . . . . . . . . . . . .13 Sales Facilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 C
34、leaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Meter Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Cable Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 4201A003. . . . . . . . . . . . .
35、 . . . . . . . . . . . . . . . . . . . . . . . . . .15 4201A004. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Bird Series 4201 Multi-Channel RF Directional Wattmeter viii Chapter 1 Introduction Wattmeter Purpose and Function The 4201 Series Multi-Channel RF Direction
36、al Wattmeter is used in conjunction with Bird Power Sensors, or rigid line sections and elements. Together these components build a RF power measurement system capable of displaying RF power of up to 24 transmitters, depending on the model used. Dual meters simultaneously display forward and reflect
37、ed power in a 50 ohm transmission line. Theory of OperationThe Series 4201 Multi-Channel Wattmeter accepts dc inputs from remotely located Bird Power Sensors, or rigid line sections with elements. Forward and reflected signals are applied to a manual switching network which selects one of 12 or 24 c
38、hannels. The output of the switching network is connected to the meters for direct readout. The meter scaling is in accordance with input requirements and must be the same for all inputs to the wattmeter. Refer to figure 1. The Model 4201 wattmeter is a panel mount type. These units are intended for
39、 fixed installation, generally in rack mounts requiring 19 inch panels. A slotted screw is provided on the lower front face of the meter for zeroing the pointer. The rotary switch (or switches) on the front of the panel, is for selecting the channel to be monitored. The Models 4201A501 and 4201A502
40、have an enable/disable push button switch. The Models 4201A503 and 4201A504 have an A/B push button switch. FWDRFL Rigid Line Power Sensor Power Sensor FWD RFL Channel 1 Channel 2 Channel 24 FWD FWD RFL RFL FWD RFL Figure 1 Block Diagram 1 Specifications Models: 4201A501, 4201A502 Models: 4201A503,
41、4201A504 Items Required But Not Supplied Models: 4201A501, 4201A502 Line Section: 4230-053 or 4522-002-5 Elements: Contact bird Electronic Corporation Cables: 10 ft. 4201A008-1, 15 ft. 4201A008-2, 25 ft. 4201A008-3 Models: 4201A503, 4201A504 Power Sensor: Contact Bird Electronic Corporation Cables:
42、10 ft. 4201A007-1, 15 ft. 4201A007-2, 25 ft. 4201A007-3 Power RangePower Sensor Dependent Freq. RangePower Sensor Dependent Accuracy 5% of full scale Meter ScalesFWD and RFL 15/30/60 W Meter Sensitivity 30 A/1400 Front Panel ControlsOne or two rotary channel selector switches, channel A/B push butto
43、n on 24 channel, enable/disable push button on 12 channel. ConnectorsRCA Phono Jacks FinishGrey Powder Coat Nominal Size19 W x 5-7/32 H x 5 D (483 x 133 x 127 mm) Nominal Weight: 4201A503 4201A504 3 lbs. 11 oz. (1.67 kg) 2 lbs. 14 oz. (1.3 kg) ModelChannelsMeter ScaleEach Transmitter Requires 4201A5
44、012425/50/100 WDual Rigid Line Section and Elements 4201A5021225/50/100 WDual Rigid Line Section and Elements 4201A5032415/30/60 WPower Sensor 4201A5041215/30/60 WPower Sensor Power Range10 mW to 10 kW using Bird Plug-In-Elements Freq. Range450 kHz to 2.7 GHz (dependent on elements) Accuracy 5% of f
45、ull scale Meter ScalesFWD and RFL 25/500/100 W Meter Sensitivity 30 A/1400 Front Panel ControlsOne or two rotary channel selector switches, channel A/B push button on the 24 channel unit, enable/disable push button on the 12 channel unit. ConnectorsRCA Phono Jacks FinishGrey Powder Coat Nominal Size
46、19 W x 5-7/32 H x 5 D (483 x 133 x 127 mm) Nominal Weight 4201A501 4201A502 3 lbs., 11 oz. (1.67 kg) 2 lbs. 14 oz. (1.3 kg) Bird Series 4201 Multi-Channel RF Directional Wattmeter 2 + Models 4201A501 and 4201A503 Models 4201A502 and 4201A504 + SENSOR INPUTS 3 2 1 4 5 6 DISABLE 12 CHANNEL RF POWER ME
47、TER ENABLE 11 12 10 8 7 9 MODEL 4201 FWD 15 80 F.S. = 30 UA.PN 2080 - 002 W ELECTRONIC 20 0 BIRD 10 5 30 40 TTA THRULINE 60 S CORP. R 20 10 40 50 100 20 RFL 20 T 40 THRULINE ELECTRONIC PN 2080 - 002 0 20 W BIRD TA 10 5 F.S. = 30 UA. 20 50 30 CORP. 60 S R 40 80 100 10 15 CHANNEL B CHANNEL A 3 2 1 4 5
48、 6 14 13 16 15 17 18 MODEL 4201 24 CHANNEL RF POWER METER 11 12 10 8 7 9 23 24 21 22 B A 20 19 FWD 15 80 F.S. = 30 UA.PN 2080 - 002 W ELECTRONIC 20 0 BIRD 10 5 30 40 TTA THRULINE 60 S CORP. R 20 10 40 50 100 20 RFL 20 T 40 THRULINE ELECTRONIC PN 2080 - 002 0 20 W BIRD TA 10 5 F.S. = 30 UA. 20 50 30
49、CORP. 60 S R 40 80 100 10 15 Series 4201 Outline Drawing Introduction 3 Power Sensors Power Sensors, for use with Models 4201A503 and 4201A504 Series Wattmeters, currently available are listed below. Specifications ModelFWD Max. PowerRFL Max. PowerFrequency Range 4152-220150 W15 W30-88 MHz 4163-240150 W15 W118-250 MHz 4164-240150 W15 W420-512 MHz 4169-30060 W6 W805-960 MHz Insertion VSWR1.1 max. Insertion Loss0.2 dB Directivity25 dB min. Accuracy 5% of full scale Connectors: RF Input RF Output DC Outputs Female N Female N Solder Lugs FinishGrey Powder
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