Anritsu ANRITSU_MS2601B 电路图.pdf

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1、SPECTRUM ANALYZERS For product ordering information, see pages 4-7. GPIB High-Speed Measurement of Various Devices SPECTRUM ANALYZER MS2601B/K 9 kHz to 2.2 GHz The MS2601B/K is a wide-band spectrum analyzer which covers the video to VHF/UHF bands. The synthesized local oscillator and auto- matic cal

2、ibration, which uses a highly accurate signal source, enable accurate frequency and level measurement. In addition, the MS2601B/K has new and original functions such as the zone marker and scroll function, that shorten measurement time. Furthermore, plug-in mem- ory cards (PMCs) for storing measurem

3、ent conditions and waveform data offer excellent operability. Advanced functions High-level built-in automatic calibration The MS2601B/K automatically calibrates itself using the calibration signal from the built-in signal source each time the CAL key is pressed. The calibration data is processed at

4、 high speed by a 16-bit micro- processor and the compensation value is added to the displayed measured value. The reliability of measurements has been greatly improved and the measurement error has been reduced to about one-third of conventional models, resulting in a general level mea- surement acc

5、uracy of 1 dB. Furthermore, when the working temperature changes drastically, an accurate measurement can be made just by pressing the CAL key. Digital technology supports high-accuracy measurement Digital technology, including a synthesized local signal, has been used to greatly improve the level m

6、easurement accuracy. Also, the signal peak-level frequency can be measured with 1 Hz resolution even at a 2.2 GHz full sweep. Furthermore, in addition to having a QP detec- tor, three resolution bandwidths, and time constants based on CIS- PR standards, the antenna calibration coefficients are autom

7、atically calculated to facilitate the best EMI measurement. IC cards for spectrum analyzers The age of spectrum analyzers operated by IC cards has now arrived. The MS2601B/K uses IC memory cards called PMCs to store mea- surement conditions and waveform data. For example, once the test procedures ar

8、e stored in the PMCs, measurements can be made un- der the same conditions at any time. You can keep your hard-earned measurement conditions as your personal know-how. Also, if these PMCs are used with the Personal Test Automation (PTA) program memory, automatic measurement can be packaged in a card

9、. PTA widens realm of automatic measurements The PTA function is a high-level language for measurement and a computer integrated in a spectrum analyzer. Programs for measure- ments, operation, and display, etc. can be input to the MS2601B/K via the keyboard or a personal computer. Thus, the spectrum

10、 analyzer can be configured quickly into automatic test equipment. PTA supports complicated measurements as well as preparation of final test results. The MS2601B/K can be used as a frequency counter, power meter, and real-time computer for measurement operations, or as ATE com- bining these functio

11、ns, as well as a spectrum analyzer. Also, various support software is available to enable connection to factory au- tomation LANs (local area networks). Main applications Measuring transmission quality such as spurious emissions from radio communication equipment Measuring electromagnetic interferen

12、ce (EMI) Testing high-frequency parts such as RF converters and tuners Measuring various devices such as filters and ICs Measurement examples Correct frequency count even at 2.2 GHz-span sweep The zone markers can be aligned with the desired signal even while observing the entire signal at full span

13、 sweep. A 2.2 GHz signal fre- quency can be measured at 1 Hz resolution (see below). RadioFans.CN 收音机爱 好者资料库 For product ordering information, see pages 4-165 SPECTRUM ANALYZERS 2 Model Overall level accuracy of 1 dB Reproducible high-accuracy level measurements are ensured through internal signal c

14、alibration, initiated simply by pressing the CAL key on the MS2601B/K (see below). In addition, there is little cumulative LOG linearity error so that measurements of transmission characteristics are carried out with the same high accuracy achieved by network ana- lyzers. Zone marker easily locates

15、signals. This zone marker function (patent pending) has been developed to reduce the measurement time. Simply enter zone markers around the signal frequency and the peak value within that zone will be measured with 0.03 dB resolution and displayed, even if the exact frequency varies. This eliminates

16、 troublesome marker adjustment to the signal peak each time you want to read the frequency and level(see below). The frequency- adjustment capability for an oscillator under test has been increased remarkably, and the frequency display remains visible during adjustment. Frequency axis scroll functio

17、n Sometimes the signal on the left or right of the displayed portion must be examined in detail during a slow sweep (see below). Just press the scroll key to move the display two divisions left or right on the screen. This permits areas beyond the edge of the screen to be displayed without waiting f

18、or a new sweep to display the entire waveform. EMI measurement In addition to providing a QP detector and three resolution band- widths and time constants based on CISPR standards, antenna cal- ibration coefficients are automatically calculated to facilitate easy EMI measurement. Application softwar

19、e MX4102B Transmitter Test System Software The MX4102B software can be used for efficient testing of mobile transmitter equipment that uses PTA (optional). This software can be used to measure frequency, high-order harmonic spurious compo- nents (second to fifth order harmonics), occupied bandwidths

20、, and the adjacent channel power. Specifications MS2601B 9 kHz to 2.2 GHz 0 to 2210 MHz (stop frequency: 1 kHz) 20 Hz CENTER/SPAN, START/SPAN, START/STOP Set frequency span (stop freq. start freq.) to 2 digit value (10 to 98) (100 Hz + freq. span x 2% + display freq. x reference freq. accuracy) For

21、CENTER/SPAN or START/SPAN mode, after auto-calibration, provided that freq. span is 10 kHz and sweep time is 100 s Setting range: 1 kHz to 2200 MHz for horizontal 10 divisions, 2-digit (10 to 98) variable, and 0 Hz (fixed tuning) 1 kHz to 2000 MHz, 1-2-5 sequence at step keys Readout accuracy: 2% (s

22、weep time 100 s) Resolution bandwidth: 30 Hz to 1 MHz (3 dB bandwidth), variable in 1-3 sequence, can be selected manually or automatically coupled to frequency span Resolution bandwidth accuracy: 20% Selectivity: 15 : 1 (ratio of 60 dB and 3 dB bandwidth) Residual FM: 20 Hz p-p/0.1 s (frequency spa

23、n; 500 kHz) Drift: 300 Hz/min (frequency span; 500 kHz, sweep time; 100 s, after 1-hour warm-up at constant ambient temperature) 80 dBc (at 100 Hz resolution bandwidth, 1 Hz video bandwidth, 10 kHz from signal) MS2601K Measurement frequency range Frequency setting Display resolution Setting mode Fre

24、quency display accuracy Frequency span Resolution Stability Sideband noise Frequency Continued on next page RadioFans.CN 收音机爱 好者资料库 SPECTRUM ANALYZERS For product ordering information, see pages 4-7. Continued on next page ModelMS2601BMS2601K Reference oscillator Frequency: 10 MHz Stability Starting

25、 characteristic: Within 5 x 108(after 20-minute warm-up, referred to frequency after 1-hour warm-up) Aging rate: Within 2 x 108/day, 1 x 107/year (referred to frequency after 24-hour warm-up) Temperature characteristic: Within 5 x 108(referred to frequency at 25C) External reference input Frequency:

26、 10 MHz, Level: 2 to 5 Vp-p Function: Displays frequency at tunable marker Display accuracy: Same as center frequency display accuracy Function: Displays frequency difference between reference marker and tunable marker Display accuracy: Same as frequency span display accuracy Function: Displays rece

27、ived signal frequency at marker Resolution: 1 Hz, 10 Hz, 100 Hz selectable Accuracy: Display frequency x reference frequency accuracy (2 counts or 20 Hz, whichever is greater) 130 to +20 dBm Divisions: 8 divisions on vertical axis when top line is reference level and scale is 10 dB/div 10 divisions

28、on vertical axis for other scales LOG (referred to reference level): 0 to 70 dB (10 dB/div), 0 to 50 dB (5 dB/div), 0 to 20 dB (2 dB/div), 0 to 10 dB (1 dB/div) LIN: 10%/div of reference level (calibrated in voltage, unit: V) Linearity LOG: 0.2 dB/0 to 10 dB, 0.3 dB/0 to 20 dB, 0.5 dB/0 to 50 dB (re

29、solution bandwidth of 100 Hz to 1 MHz), 1 dB/0 to 70 dB (resolution bandwidth of 100 Hz to 100 kHz), after automatic calibration LIN: 3% of reference level (fullscale) 0.5 dB (100 kHz to 2.0 GHz), 1.5 dB (9 kHz to 2.2 GHz), input ATT at 20 dB LOG: +20 to 100 dBm (setting resolution 0.1 dB), 2240 mV

30、to 2.20 V LIN: 2240 mV to 70.8 V 0.3 dB (0 to 50 dBm), 0.75 dB (+20 to 70 dBm) after automatic calibration at frequency of 50 MHz and fre- quency span 2 MHz (resolution bandwidth, video bandwidth, sweep time, and input ATT settings at AUTO) 0.3 dB (after automatic calibration) 120 dBm (frequency 1 M

31、Hz to 2 GHz) with 0 dB input ATT, 300 Hz resolution bandwidth, 1 Hz video bandwidth 75 dB (frequency 5 to 800 MHz) when 0 dB input ATT and 30 dBm input level 95 dBm (frequency 500 kHz) when 0 dB input ATT and 75 input termination 100 dBm (frequency 500 kHz) when 0 dB input ATT and 50 input terminati

32、on Normal: Displays the level at settable marker Delta: Displays the difference in levels between the settable marker and the reference marker Noise measurement: Both the power of noise per 1 Hz bandwidth (dBm/Hz, dBc/Hz), and the adjacent channel power (dBm/ch, dBc/ch) can be measured. 1 Hz, 10 Hz,

33、 100 Hz, 1 kHz, 10 kHz, 100 kHz, OFF (selected manually or automatically coupled to resolution bandwidth) dBm, dBV, dBmV, dBV (emf), dBV/m 1 dB (after calibration at room temperature) 6 dB bandwidth: 200 Hz, 9 kHz 120 kHz 30% (at room temperature) Time constants for quasi-peak detection Charge-time

34、constant: 45 ms (for 6 dB bandwidth at 200 Hz), or 1 ms (for 6 dB bandwidth at 9 kHz and 120 kHz) Discharge-time constant: 500 ms (for 6 dB bandwidth at 200 Hz), 160 ms (for 6 dB bandwidth at 9 kHz), or 550 ms (for 6 dB bandwidth at 120 kHz) Display time constant: 160 ms (for 6 dB bandwidth at 200 H

35、z and 9 kHz), or 100 ms (for 6 dB bandwidth at 120 kHz) Display: LOG scale; 5 dB/div (10 div) Linearity: 1 dB (for 40 to 0 dB carrier wave signal, at room temperature) Antenna correction coefficients for correct display and measurement of field strengths (dBV/m) can be se- lected for certain antenna

36、s. Antenna correction coeffi- cients have been stored in memory for the following antennas: MP534A/651A, MP635A/666A, MP414B The user may define and store antenna coefficients (for one antenna) via the GPIB interface. 50 , VSWR 1.5 (input ATT; 10 dB, frequency; 30 kHz), N-type connector +25 dBm (inp

37、ut ATT; 10 dB), DC: 50 V Attenuation: 0 to 50 dB, in 10 dB steps (selected manually or automatically coupled to reference level) Switching accuracy: 1 dB (100 kHz to 1.5 GHz), 2.0 dB (9 kHz to 2.2 GHz) Setting range: 50 ms to 1000 s variable in 1-1.5-2-3-5-7 sequence. Range can be selected manually

38、or automatically ac- cording to frequency span, resolution bandwidth, and video bandwidth. It can also be set from 50 ms to 1000 s (according to the most significant 2-digits) via the GPIB interface. Accuracy: 15% (for 50 ms to 100 s range) or 30% (for 100 to 1000 s range) at room temperature FREE R

39、UN, LINE, VIDEO, SINGLE, EXT TRIGGER Normal: Sweeps entire range, Zone marker width setting range: 1 to 501 points (odd numbers) Zone sweep: Sweeps range between zone markers, Zone marker width setting range: 25 to 501 points (odd numbers) +25 dBm (input ATT; 10 dB), DC: 100 V 75 , VSWR 1.5 (input A

40、TT; 10 dB, frequency; 30 kHz to 2 GHz), NC-type connector Any set of user-defined antenna correction can be se- lected for correct display and measurement of field strengths (dBm). The user may define and store an- tenna coefficients (for one antenna) via the GPIB in- terface. 114 dBm (frequency 1 M

41、Hz to 2 GHz) with 0 dB input ATT, 300 Hz resolution bandwidth, 1 Hz video bandwidth LOG: +20 to 100 dBm (setting resolution 0.1 dB), 2750 mV to 2.70 V LIN: 2750 mV to 87.1 V 0.5 dB (100 kHz to 1.5 GHz), 1.5 dB (9 kHz to 2.2 GHz), input ATT at 20 dB 124 to +20 dBm Markers Measurement range Display Fr

42、equency response (20 to 30C) Setting range Accuracy Resolution bandwidth switching deviation Average noise level 2nd and 3rd harmonic distortion Residual response Dynamic range Marker Video bandwidth Level unit LOG/LIN switching loss Quasi-peak detection Field strength measurement RF input Input ATT

43、 Sweep time Trigger Sweep range Impedance Maximum input level Reference level NORMAL Delta COUNT AmplitudeFrequencySweep RadioFans.CN 收音机爱 好者资料库 For product ordering information, see pages 4-167 SPECTRUM ANALYZERS 2 PTA model Communication mode ModelMS2601B Six-inch electromagnetic deflection type (

44、green display color) Graticule (grid), waveform data, setting conditions, menu, title The display screen uses digital storage, 501 points of data for horizontal-axis data, and 2 display channels (A and B): Either channel can be selected for NORMAL, AVERAGE, MAX-HOLD, or MIN-HOLD waveforms, but only

45、chan- nel A can be used for the CUMULATIVE and OVERWRITE mode of displaying stored data. Channels A and B can be displayed simultaneously. PEAK, SAMPLE and DIP can be selected. Screen data can be hard-copied to a plotter or printer via the GPIB interface (RS-232C interface for option 02) Plotter com

46、patibility: HP-GL or GP-GL compatible Printers: EPSONs VP-870 (or compatible models), or Hewlett-Packards 2225 ALL CAL: Calibrates all LEVEL CAL 1, LEVEL CAL 2 and FREQ CAL functions LEVEL CAL 1: Calibrates total gain deflection and log linearity LEVEL CAL 2: Calibrates resolution bandwidth, referen

47、ce level, and LOG/LIN switching deflection FREQ CAL: Calibrates local frequency errors, and the center frequency of the resolution bandwidth QP CAL: Calibrates the on/off switching error apparent in quasi-peak detection Internal memory: Save/recall 6 setting conditions PMC: Save/recall 12 (32 KB) or

48、 48 (128 KB) setting conditions and measurement data GPIB (IEEE488, IEC625-1, 24 pins): All functions except power switch, CRT intensity, PMC control, GPIB address, AM/FM modulator (option 07) and direct plotting controlled. Interface: SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, C0 IF output Frequenc

49、y: 3.6 MHz, Output level: 0 dBm 3 dB (at the reference line on the CRT), Connector: BNC-type 50 MHz output Frequency: 50 MHz, Output level: 2 dBm 3 dB, Connector: BNC-type X, Y and Z outputs X-axis output: From 0 V (left edge) to 10 1 V (right edge), terminated at 100 k, BNC-connector Y-axis output*1: From 0 V (lower edge) to 1 0.3 V (upper edge), terminated at 100 k, BNC-connector Z-axis output: TTL level (level is low while sweep is in progress), BNC-connector Video output Composite: 1 Vp-p 0.3 V, BNC-connector Separate: 8 pins, DIN-connector Probe power supply: +5 V 10%, +15 V 10%, 15