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Summary of Contents for Ceyear 4957D
- Page 1 4957D/E/F Microwave Analyzer Quick Start Guide China Electronics Technology Instruments Co., Ltd.
- Page 3 Foreword The contents of this manual are Thank you for choosing and subject to change without notice. Warning ！ using 4957D/E/F microwave The final right to interpret the Analyzers developed contents and terms used in this produced by China Electronics...
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Page 4: Table Of Contents
Contents Chapter I Manual Navigation ................1 Chapter II Getting Prepared .................. 2 2.1 Preparation before operation ................2 2.2 Power-on ........................4 2.3 Front Panel ....................... 4 2.4 Operator Interface ....................6 2.5 Top Interfaces ......................6 2.6 Battery ........................ -
Page 5: Chapter I Manual Navigation
This chapter introduces the calibration of 4957D/E/F in detail and, through DTF test and other test examples, details the operation steps for the basic measurement format of 4957D/E/F, and briefly introduces the skills used in the tests. After reading this chapter, you can independently use 4957D/E/F to complete the testing of some typical tested pieces. -
Page 6: Chapter Ii Getting Prepared
2.1.1 Environmental Requirements In order to ensure the service life of 4957D/E/F and the validity and accuracy of measurement, please carry out the tests under the following environmental conditions: 1. Temperature range: Storage temperature range: -40℃... - Page 7 Current: 4 A (min.) 3. Built-in battery power supply 4957D/E/F can be powered by rechargeable li-ion batteries. If the battery is left unused for a long time, it will be discharged by itself, so it must be charged before being used again.
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Page 8: Power-On
[XXX], with XXX being the name of the key; The menu keys on the right are represented by [XXX], with XXX being the menu name. 2.3 Front Panel This section details the front panel of 4957D/E/F, which is shown in Figure 2.1. Rotary knob 8.4’’Touch Speaker... - Page 9 4957D/E/F Microwave Analyzer Quick Start Guide parameters such as reference, scale, max and min values, relative measurement switch state, offset, etc.. In the Power Monitor mode, it can also turns on / off the preamplifier. [BW]: It is used to set such parameters as Average, Smooth and MF BW, etc., in the CAT mode and the Network Analyzer mode.
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Page 10: Operator Interface
Speaker: Please keep the opening clean, so as to guarantee the sound effect. 2.4 Operator Interface 4957D/E/F is equipped with a 8.4” touch screen LCD, which can offer good visibility under direct sunshine. The operation interface is shown in Figure 2.2. Adhering to the concept of energy conservation and environmental protection, 4957D/E/F also features the sleep and automatic shutdown functions. - Page 11 4957D/E/F Microwave Analyzer Quick Start Guide The top panel of the 4957D/E/F can be divided into three parts: Power interface, digital interfaces and test ports. Network port 2 10 MHz in / out port Network port 1 GPS antenna interface...
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Page 12: Battery
For a long-term field test, it is recommended to purchase a battery of the same model as the enclosed battery for backup. The 4957D/E/F battery is easy to install or replace. First, open the battery cover, then put the battery into the battery compartment, push the battery in, and finally close the battery cover. -
Page 13: Chapter Iii Typical Applications
4957D/E/F Microwave Analyzer Quick Start Guide Chapter III Typical Applications 4957D/E/F offers a variety of measurement modes. This chapter will provide a detailed introduction to commonly used test cases in each mode. 3.1 Calibration in the VNA Mode In order to ensure the accuracy of the measurement results, the instrument must be calibrated before testing to eliminate the systematic error of the analyzer. - Page 14 4957D/E/F Microwave Analyzer Quick Start Guide For S response For S response Short Load Open Short Load Open Microwave Analyzer Figure 3.1 Standard piece connection of reflection measurement response correction Response error correction of transmission measurement In the VNA mode, select the desired type of measurement: ...
- Page 15 4957D/E/F Microwave Analyzer Quick Start Guide Cables Microwave analyzer Figure 3.2 Standard piece connection of transmission measurement response error correction Correction of transmission measurement response and isolation In the VNA mode, select the desired type of measurement: If transmission measurement is required in the positive direction (S21), press 【Measure】...
- Page 16 4957D/E/F Microwave Analyzer Quick Start Guide For response For isolation Load Load Adapter Microwave analyzer Microwave analyzer Figure 3.3 Standard piece connection of transmission measurement response and isolation error correction 2. Single port error correction The directional error of the assembly of the DUT is eliminated ...
- Page 17 4957D/E/F Microwave Analyzer Quick Start Guide piece, and after completing the measurement and calculating the error coefficient, it will display the prompt "Connect SHORT in P1, then press corresp. menu button to start!" And the software menu will be underlined to indicate that the project has been tested, such as [OPEN].
- Page 18 4957D/E/F Microwave Analyzer Quick Start Guide 3. Full 2 ports error correction Full 2 ports error correction allows for correction of 12 error terms such as positive and reverse directivity, source matching, load matching, frequency response and isolation, etc.. This is the accurate error correction process. The analyzer performs...
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Page 19: Dtf Measurement In The Cat Mode
DTF (Distance to Fault) measurement, namely, fault locating measurement, is a performance verification and fault analysis tool used in the maintenance and repair of antennas and transmission lines. The DTF function of 4957D/E/F is realized by frequency domain reflectometer measurement technology. In engineering applications, DTF measurement usually adopts the connection method shown in Figure 3.6 to measure the... -
Page 20: Signal Measurement In The Sa Mode
This section will briefly introduce the measurement functions and methods of the spectrum analysis mode of 4957D/E/F microwave analyzer so that users who are using this instrument for the first time can have a general understanding of the test operation processes and can perform basic measurement. - Page 21 Press [Span Pre] to set the value of the previous sweep span. 5. Activating marker 4957D/E/F microwave analyzer provides up to eight independent markers for reading out the measurement results. Press [Mkr] → [Sel Mkr] → [Mkr 1], [[Mkr 2]…[[Mkr 7], [[Mkr 8] to select the currently displayed marker.
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Page 22: Measuring Signal Power In The Power Monitor (Pm) Mode
3.4 Measuring Signal Power in the Power Monitor (PM) Mode The PM mode is an optional test function of the 4957D/E/F microwave analyzer, with the measured frequency range covering 100 kHz – 18 GHz (4957D), 100 kHz - 26.5 GHz (4957E), 100 kHz –... -
Page 23: Measuring The Electrical Length Of Cables Or Other Duts In The Vvm Mode
3.5 Measuring the Electrical Length of Cables or Other DUTs in the VVM Mode The VVM mode of 4957D/E/F is a very convenient tool to ensure the phase matching of RF cables. It is mainly used to measure the electrical lengths of cables or other DUTs. - Page 24 CW Freq signal. The frequency ranges of 4957D/E/F microwave analyzers in the VVM mode are is 30 kHz – 18 GHz (4957D), 30 kHz - 26.5 GHz (4957E), 50 MHz - 40 kHz (4957F), respectively, and the corresponding key operations are as follows: Press [Freq] and enter the frequency value, select corresponding frequency unit from the touch screen to complete center frequency setting.
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Page 25: Measuring Average Power In The Ubs-Pm Mode
+20 dBm. The measurement reading is displayed on the display interface of the USB Power Meter mode of 4957D/E/F. The test block diagram is shown in Figure 3.11, and attenuators can be added as required. - Page 26 4957D/E/F Microwave Analyzer Quick Start Guide value. A typical test connection is shown in Figure 3.12 (an attenuator or gain to be added as necessary). Device under test Attenuator (optional) 8723x Attenuator AV87 (optional) Microwave Analyzer Figure 3.12 Measuring structure of UBS power measurement mode 4.
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Page 27: Testingskills
4957D/E/F Microwave Analyzer Quick Start Guide press [OK] to complete the input. Press [Amplitude] → [Min Scale], enter the min value with the numeric keys, and press [OK] to complete the input. Auto Scale With auto scale function of this mode, the display range of the measured power can be automatically adjusted in the following steps: Press [Amplitude] →... - Page 28 1. Limit Line: In batch tests, users have their own standards of qualification. In response, 4957D/E/F provides the [Limit] function of [Trace] in the Spectrum Analyzer mode to set the limit lines, which can facilitate product inspection. During batch testing, it is possible to judge whether a product is qualified by replacing the DUTs.
- Page 29 The more points, the longer the maximum distance of measurement. In terms of cable loss, the effective directivity indicator of 4957D/E/F is ≥ 30 dB. If the energy of the reflected signal is less than the effective directivity, the effective test result cannot be obtained.
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Page 30: Chapter Iv Getting Help
4.1 Basic Inspection In case of any problem with the 4957D/E/F you are using, you can check it by yourself according to the following tips. If the problem cannot be solved, please contact us. -
Page 31: Repair
！ 4.3 Repair In case of any failure to the 4957D/E/F that is difficult to be eliminated, contact us by phone or fax. If it is confirmed that the instrument needs to be repaired, please package the instrument according to the following steps: Write a paper document describing the instrument failure and put it in the package together with the analyzer;... -
Page 32: Annex 1: Technical Indicators
4957D/E/F Microwave Analyzer Quick Start Guide Annex 1: Technical indicators The technical indicators of 4957D/E/F have been strictly tested at the factory. Users can also test and verify them according to the technical indicators provided in this manual, which are shown in the following schedule. - Page 33 4957D/E/F Microwave Analyzer Quick Start Guide Noise ≤ -102 dBc / Hz@30 kHz; ≤ -99 dBc / Hz@100 kHz; ≤ -110 dBc / Hz@1 sideband (CF=1 GHz) Residual ≤ -80 dBm ≤ -70 dBm response Maximum safe input +27 dBm...
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Page 34: Annex 2: List Of Accessories / Options
4957D/E/F Microwave Analyzer Quick Start Guide Annex 2: List of Accessories / Options Schedule 2: List of Accessories / Options of 4957D/E/F Microwave Analyzer Accessory / Category Accessory / Option Option No. Power cord assembly AC-DC adapter Rechargeable li-ion battery 1... - Page 35 4957D/E/F Microwave Analyzer Quick Start Guide GORE-OSZKUZKU0240 N-type female-male calibration cable 4957D-H09 GORE-OSZKUZKV0240 3.5 mm female-female calibration cable 4957D-H10 GORE-0RD02D02024.0 3.5 mm female-male calibration cable 4957D-H11 GORE-0RD01D02024.0 2.4 mm female-female calibration cable 4957D-H12 GORE-0K0CK0CK024.0 2.4 mm female-male calibration cable 4957D-H13 GORE-0K0CJ0CK024.0...
- Page 36 4957D/E/F Microwave Analyzer Quick Start Guide 4957D-H32 Soft backpack 4957D-H33 Aluminum alloy carrying case 4957D-H34 Waterproof case...
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