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1、RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . 432 Measuring Receiver . . . . . . . . . . . . . . . . . . . . . . . . 433 Radio Communication Analyzer . . . . . . . . . . . . . . 435 Frequency Converter . . . . . . . . . . .
2、 . . . . . . . . . . . . 435 Interference/Field Strength Meters . . . . . . . . . 435, 436 Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436, 437 EMI Measuring Systems . . . . . . . . . . . . . . . . . . . . 438 EMI Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3、 . 440 EMI Probe Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . 440 431 RadioFans.CN 收音机爱 好者资料库 RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS 432For product ordering information, see pages 4 10 Spectrum analyz
4、ers MS2651B, MS2661B/C9 kHz to 3 GHz MS2663C9 kHz to 8.1 GHz Pre-amplifierMH648A100 kHz to 1200 MHz Pulse limiterESH3-Z29 kHz to 30 MHz Absorption clamp KT-1030 to 1000 MHz KT-2030 to 1000 MHz Dipole antennaMP534A25 to 520 MHz TripodMB9A Dipole antennaMP651A470 to 1700 MHz TripodMB9A Log-periodic an
5、tennaMP666A200 to 2000 MHz TripodMB9A PoleMB18B Biconical antennaBBA910630 to 300 MHz Line probe3701450 kHz to 30 MHz EMI probeMA2601B/C5 MHz to 1 GHz/1 to 50 MHz Fixed attenuatorMP721B6 dB Programmable attenuatorMN63A0 to 100 dB PrinterVP-870 PlotterMP5300-11 System software MX264001A (for MS2651B,
6、 MS2661B/C, MS2663C) Models and names Frequency range or attenuation Simplified EMI measurement system Noise measures Conducted interface Interference power Radiation noise All items EMI measuring instruments selection guide MS555B MG3641A MG3642A MG3633A 68000C, 69000B ML2437A/2438A ML2407A/2408A M
7、F2400B series ML524B S331B 54100A series MS4630B 37200C series MS2651B, MS2661B/C, MS2663C, MS2665C, MS2667C, MS2668C MS2683A Radio communica- tion analyzer Time-domain- capable spectrum analyzer Power meter Frequency counter Measuring receiver Site master Network analyzer Signal generator Anritsu m
8、odel Construction, maintenance Service areas TransmitterTransmitterReceiver Maintenance, troubleshoot- ing Receiver Parts Entrance circuitry Mobile equipmentBase station Equipment to be measured Selection guide (example of an application; various other types of measurement equipment are also availab
9、le) Type of measurement equipment RadioFans.CN 收音机爱 好者资料库 433 RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS 10 GPIB OPTION For Measuring Service Area Direct readout of field strength High precision level display (indication in 0.1 dB steps) Applications For field strength measurement Investig
10、ation to determine service areas Radio wave propagation test Measurement of spurious radiation from transmitter For other than field strength measurement Radio monitoring Measuring receiver High-sensitivity signal demodulation MEASURING RECEIVER ML524B 25 to 1000 MHz The ML524B have a full range of
11、features and functions plus de- modulation functions for various signals. Their compact, lightweight construction makes them suitable for a variety of measurement appli- cations. Use of the GPIB interface option allows easy configuration of an automatic test system controlled by a personal computer.
12、 Features Very compact and lightweight High frequency stability (A synthesizer local is used. Its reference oscillator has a high frequency stability of 1 x 106.) Wide dynamic range (80 dB without switching) Automatic gain calibration RF inputNominal impedance 50 , N-type connector Range25.0000 to 9
13、99.9999 MHz Display Liquid crystal display, 6 digits Minimum digit: 1 kHz (0.5 kHz is displayed using a symbol of .) FrequencyResolution12.5 kHz (120 kHz bandwidth), 1 kHz (15 kHz bandwidth) SettingKeyboard and FINE dial MemoryUp to 100 frequencies can be stored and recalled. Reference frequency sta
14、bility1 x 106 Minimum value5 dBV (25 to 300 MHz), 5 dBV (300 to 999.999 MHz) Voltage Maximum value100 dBV (25 to 999.999 MHz) measurementSettingC/N: 6 dB (at minimum value), Bandwidth: 15 kHz (E.M.F.) Accuracy (digital display)2 dB (minimum value +6 dB) Comparison oscillatorPulse generator Minimum v
15、alue5 to 19 dBV/m (25 to 300 MHz), 19 to 32 dBV/m (300 to 999.999 MHz) Field strength Maximum value0 to 114 dBV/m (25 to 300 MHz), 114 to 120 dBV/m (300 to 999.999 MHz) measurement SettingC/N: 6 dB (at minimum value), Bandwidth: 15 kHz Type of antennaHalf-wave dipole 6 dB bandwidth15 2 kHz (15 kHz b
16、andwidth), 120 20 kHz (120 kHz bandwidth) Selectivity Detuning characteristics15 kHz bandwidth50 dB (20 kHz off center) Image ratio60 dB (at 25.000 to 299.999 MHz), 45 dB (at 300 to 999.999 MHz) Residual spurious10 dBV (typical near 50, 130, 600, 1000 MHz) Detection systemAverage value Specification
17、s Continued on next page Custom-made product RadioFans.CN 收音机爱 好者资料库 RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS 434For product ordering information, see pages 4 10 Ordering information Please specify model/order number, name, and quantity when ordering. Model/Order No.Name Main frame ML524
18、BMeasuring Receiver Standard accessories J0231Connecting cord for recorder (3.5 plug alligator clips), 1.5 m:1 pc J0144DC power cord (RM12BPG-5S 2CC7 arrow tips), 1.5 m:1 pc A0002Earphone:1 pc MZ114AAC Power Pack:1 pc B0259Carrying case:1 pc W0285AEML524A/B/C operation manual:1 copy Options ML524B-0
19、1GPIB ML524B-05Terminated voltage indication Model/Order No.Name Optional accessories MP612ARF Fuse Holder MP613ARF Fuse Element (5 pcs/set) A0004Headphone MZ110BBattery Pack (with six Ni-Cd batteries) MZ115BBattery Charger MZ114AAC Power Pack MP635ALog-periodic Antenna MZ137ABattery Pack MB19A Trip
20、od (for MP635A) J0006 GPIB cable, 0.5 m J0007 GPIB cable, 1 m J0008 GPIB cable, 2 m J0009 GPIB cable, 4 m MP663ADipole Antenna (with pole and tripod) MP651BDipole Antenna MP18APole (for MP651B) MB9A Tripod (for MP651B) MP520BCM Directional Coupler (25 to 1000 MHz, 75 , NC-type connector) MP520DCM Di
21、rectional Coupler (100 to 1700 MHz, 50 , N-type connector) Power supply selection guide Type of power supplyModelWhen used with ML524BRemarks MZ137A Battery Pack Operates continuously for about 2.5 toTwelve alkaline dry cells (LR20) Dry cell 5 hours1 Does not permit GPIB operation Sold separately MZ
22、110B Battery Pack Six Ni-Cd batteries with the same dimensions Operates continuously for about 30 to as R14 battery, chargeable 200 to 300 times Ni-Cd battery60 minutes1 Fits inside the receiver Sold separately Does not permit GPIB operation MZ114A AC Power Pack DC power is fed to the EXT +12 V term
23、inal AC supplyPermits operation at 100/220 Vac of the receiver. One of accessories suppliedPermits GPIB operation EMC, safety External DC supply The receiver can be operated directly One DC power cord is supplied. from an external 12 Vdc supply. Permits GPIB operation Two MZ110B can be charged simul
24、taneously. Battery chargerMZ115B Battery Charger Sold separately EMC, safety 1: For continuous reception after power on, with calibration performed once only (more calibrations reduce the operating time). Operating is also affected by how the battery has been stored, and operating temperature. Displ
25、ay: Liquid crystal display, 4 digits, Minimum digit 0.1 dB (on digital display), Up to 80 dB (on analog display) Measured level indication Unit: dBV, dBV/m (on digital display) Monitor outputAM and FM can be heard from a loudspeaker, and earphone output terminal is also provided. IF outputLevel: 85
26、dBV at 80 dBV input, Impedance: 50 (nominal), Connector: BNC-type Level: 1 V 20% (modulation frequency: 2 kHz, frequency deviation: 3.5 kHz, into 100 kHz load) Discriminator outputImpedance: 150 Connector: BNC-type Output for recorderLevel: 1 V 10% (at 80 dB on digital display, into 100 k load), Imp
27、edance: 150 , Connector: 3.5 jack Ambient temperature0 to 50C (operate), 20 to 60C (storage) 12 Vdc: 1 A Power100 Vac, 50/60 Hz, 35 VA (using MZ114A AC Power Pack supplied) Ni-Cd battery (optional MZ110B Battery Pack) Dimensions and mass210 (W) x 60 (H) x 175 (D) mm, 4 kg 435 RADIO COMMUNICATIONS, E
28、MI MEASURING TEST INSTRUMENTS 10 Expandable to 3 GHz using ML524B RADIO COMMUNICATION ANALYZER MS555B 25 to 1000 MHz FREQUENCY CONVERTER MH669B 1 to 3 GHz INTERFERENCE/FIELD STRENGTH METER ML518A, MH650A, MH649A 25 to 1700 MHz GPIB For 400/800/900-MHz Narrow Band FM The measurable frequency range ca
29、n be expanded to 3 GHz by us- ing the MH669B in conjunction with the ML524B Measuring Receiver. Applications Quasi-microwave propagation test Investigation to determine service areas The MS555B is a versatile, compact, and portable test instrument with a frequency range of 25 to 1000 MHz. It include
30、s all the necessary in- struments for both transmitter and receiver testing, and can measure such fundamental characteristics as output power, frequency, FM de- viation, sensitivity, signal-to-noise ratio, distortion, etc. The MS555B has a host of features that make many discrete instruments obsolet
31、e. For example, with its excellent frequency stability and low residual noise, the built-in signal generator is ideally suited to the production and maintenance of narrow-band 400 MHz transceivers and 800/900 MHz band radiotelephone systems. Moreover, thanks to an internal microprocessor, the MS555B
32、 can make automatic measurements via the GPIB when connected to an external computer controller. The built-in printer also provides convenient hard copies. Features This instrument includes a power meter, frequency counter, FM de- viation meter, AF level meter, SINAD meter, AF oscillator, synthe- si
33、zed signal generator, and DC voltmeter, all in a single cabinet. Additional options include a tone generator, signalling unit for per- sonal radio, and weighting filter. : ITU-T, C-MESSAGE The ML518A is a universal multi-purpose field strength meter with many functions and excellent performance in t
34、he frequency range from 25 to 1700 MHz. It can be used for investigating the service area of broad- cast waves, radio transmission tests, measurement of spurious emis- sions of transmitters, measurement of antenna characteristics, and for measuring interference waves in conformity with the CISPR spe
35、c- ifications. Features A desired frequency can be precisely captured because a tuning fre- quency can be set up to 1700 MHz with an accuracy of 1 kHz. Quick response of the recorder output permits faithful recording of extreme field variations. Efficient measurement of interference waves in conform
36、ity with the CISPR specifications The average value, quasi-peak value, and peak value detection modes allow measurement of radio signals (TV, noise, etc.) which cannot be evaluated by the average value alone. For Measuring Noise Field Strength (in Conformance with CISPR Specifications) ML518A Interf
37、erence/Field Strength Meter MH650A Frequency Converter MH649A Preselector RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS 436For product ordering information, see pages 4 10 The gain remains roughly constant over a wide range so the element length does not require adjustment. Compared with dipo
38、le antennas, these antennas have a gain of 5 dB. Specifications ModelMP635AMP666A Frequency range80 to 1000 MHz200 to 2000 MHz Input impedance50 (connector: N-type) VSWR2.5 Average relative again5 dB Maximum input power10 W Front-to-back ratio15 dB Dimensions and mass 200 x 200 x 1750 mm,140 x 900 m
39、m, 7 kg5 kg LOG-PERIODIC ANTENNA MP635A, MP666A 80 to 1000 MHz200 to 2000 MHz The ML428B not only enables measurement of the field strength of general broadcasts and radio communications, but it can also perform measurements of interference waves in accordance with CISPR, VDE, FCC, or other specific
40、ations. The ML428B possesses a local syn- thesizer and high-precision sine-wave comparison oscillator to obtain data with excellent repeatability. In addition, the built-in microproces- sor allows level calibrations and attenuator operation to be automat- ically performed to enable direct reading of
41、 the field strength and ef- ficient measurement. Features Correct interference measurement can be performed in accordance with CISPR specifications. The use of a frequency synthesizer in the local oscillator enables a high degree of frequency stability to be gained. Allows direct reading of the fiel
42、d strength. Up to a maximum of any 100 frequencies can be stored. Prompt measurement is possible through use of the auto-range function. Direct readout of field strength is possible arbitrarily for conventional antenna by memorizing its coefficient via GPIB. Convenient outdoor operation through the
43、use of a DC power source. Those half-wavelength dipole antennas are reference antennas, but the element length must be adjusted for each frequency to be mea- sured. INTERFERENCE/FIELD STRENGTH METER ML428B 9 kHz to 30 MHz DIPOLE ANTENNA MP534A/B, MP651A/B, MP663A 25 to 520 MHz470 to 1700 MHz300 to 1
44、000 MHz GPIB For Measuring Noise Field Strength (in Conformance with CISPR Specifications) MP534AMP663A Tripod sold separately 437 RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS 10 LOOP ANTENNA, ROD ANTENNA MP414B,MP415B The MP414B/415B can be used with the ML428B Interference Field Strength M
45、eter. MP414BMP415B RADIO COMMUNICATIONS, EMI MEASURING TEST INSTRUMENTS 438For product ordering information, see pages 4 10 EMI MEASUREMENT SYSTEMS MS2651B, MS2661B/C, MS2663C SPECTRUM ANALYZER This is an EMI measurement system which uses MS2651B, MS2661B/C and MS2663C Spectrum Analyzers. An externa
46、l con- troller is not required. Install the MX264001A EMI Measurement Software into the PTA function provided with the spectrum analyzer as standard, and then select the initial measurement conditions from the menu to perform the measurement. The measured data can be printed out, and also stored as
47、a bitmap file. Two measurement modes are available: pre-measurement and auto/manual evaluation measurement. The pre-measurement auto- matically registers the frequency point that exceeds the limit line (se- lectable from VDE0871, CISPR Pub, FCC, and USER 1 to 5). If the peak point to be evaluated ca
48、nnot be detected, auto/manual evalua- tion measurement is not performed. QP(quasi peak value) or AVER- AGE(average value) can be selected from the menu in the measure- ment mode. MX264001A EMI Measurement Software Setup entry/edit Screen 1, the entry/edit mode screen, is displayed when EDIT MODE is
49、selected from the measurement mode select menu. Multiple antenna coefficients and limit lines are registered so that the items can be easily selected from the menu. If an antenna coefficient and a limit line other than those registered on the menu are to be used, they should be entered using the panel keys. Five arbitrary data can be registered for each of the above items in the memory area. Screen 1: Entry/edit screen Screen 4: Auto evaluation measurement exit screen Screen 2: Pre-measurement mode set