BK 2650_manual 电路图.pdf

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1、Instruction Manual Model 2650 3.3GHz/Model 2658 8.5GHz Spectrum Analyzer RadioFans.CN 收音机爱 好者资料库 I Before Starting to Use the Unit When you use the unit, please observe the following notes listed on the rear of the body. For you to use it safely 1) When abnormal sounds, abnormal smell and smoke are

2、emitting from the unit, remove the battery and AC adapter and stop the use. 2) Never use with hands that are wet, because doing so may cause damage to the unit and/or cause electric shock to the user. 3) Never use it under the lightning. There is a possibility of receiving a lightning bolt. 4) Never

3、 use an AC adapter other than the one specified, because doing so may cause damage to the unit. For static electricity protection, ground the unit by connecting the three cores if possible. Not grounding the unit can damage it and the object measured. 5) Never use a battery other than the one specif

4、ied, because doing so may cause damage to the unit. When removing or installing the battery, be sure to do it after you turn off the unit and disconnect the AC adapter. 6) When replacing the fuse, disconnect the AC adapter, open the battery cover on the back and remove battery, and then take suffici

5、ent care to perform the replacement. Use 5A/250V fuse (IEC127-2 sheet 3, slow-blow type). Never use a fuse not specified because doing so may cause damage to the unit. RadioFans.CN 收音机爱 好者资料库 II Guarantee of quality Guarantee period Guarantees that the unit will be repaired for any failure free of c

6、harge if the failure occurs because of our responsibility within one year after original owners date of purchase. However, the above guarantee does not apply to such a failure that: 1) is caused by a fire, natural disasters, etc. 2) is caused by inappropriate handling of the unit, such as dropping i

7、t while moving it after purchasing. 3) is caused by handling counter to the instructions or precautions listed in the operating manual. 4) is caused by modifying the unit or by being considered to be your responsibility because of inappropriate use. We will not be responsible for direct or indirect

8、damage caused by use of this product or by a failure of this product. Warm-up time In order to stabilize the electric performance at the time of turning on the unit, please perform warming-up for at least 10 minutes. Precautions for storage 1) Strictly observe the storage conditions specified for th

9、is unit, such as avoiding direct sunlight and dust. 2) Store this unit in a place where -20C to 60C, less than 60C/70%RH, variations in temperature and humidity are small. After service If you have any question about the contents of this product or how to operate it, please contact us at: B ”FREQ1G”

10、 OUTPUT 40 INPUT #1 A$ ”OK” READ 50 CLOSE #1 2005/05/25 62 24. PC Software (optional) This is the software AK 2650 that controls 2650/2658 by RS-232C. All setting can be performed from PC. Although the 251 points of trace data is displayed on horizontal axis in the screen of the 2650/2658,1001 point

11、s of trace data are taken per sweep. When this software is used, all of these 1001 points dataare transformed to a PC and trace is displayed at high resolution. Corresponding OS Hardware Requirements Computer that is able to act normally Windows, and able to use the COM port and CD-ROM drive. Screen

12、 size 1024x768 or more computers. Operating system Windows 95/98/2000/Me/NT 4.0 * XP Communication method Bidirectional communication by RS-232C. Installation procedure 1. Start windows. 2. Insert the AK 2650 software CD into the CD-ROM drive. The setup will start automatically and the initial scree

13、n will appear. 3. Follow the instructions on the screen. * If the setup does not start, 1. Double-click on the My Computer icon. 2. Double-click on the CD-ROM icon. 3. Double-click on “setup.exe”. 4. Follow the instructions on the screen. Refer to the “README” in the AK 2650 for details. * The softw

14、are can be updated. Please contact to our company for details. 63 25. Basis Performance Test (2650 only) To keep the quality of the unit, regular performance testing is recommended. This section describes a method and specification of basic performance testing. If a problem is found in the results o

15、f basic performance testing, or formal testing is needed, please contact the dealership where you purchased the product, or contact us. Connection diagram 25.1 Frequency characteristics Adjust the output level of the spectrum analyzer calibration unit (thereafter, “calibration unit”) so that the dis

16、played power value is -15dBm at each frequency for this unit, and measure the absolute value with a receiver for calibration (microwave power meter, etc.). Setting of 2650 Center frequency Frequency span RBW Specifications Measurement value Judgment 50kHz 200kHz 10kHz Within Reference2.6dB1dot 100kH

17、z 200kHz 30kHz Within Reference2.6dB1dot 1MHz 2MHz 100kHz Within Reference1.6dB1dot 10MHz 10MHz 3MHz Within Reference1.0dB1dot 100MHz 10MHz 3MHz Reference 1GHz 10MHz 3MHz Within Reference1.0dB1dot 2GHz 10MHz 3MHz Within Reference1.0dB1dot 3.3GHz 10MHz 3MHz Within Reference1.0dB1dot * RBW switching e

18、rror is included at RBW other than 3MHz. Setting of 2650 Setting of calibration unit Reference level : -15dBm Frequency : Same as a center frequency of VBW : 1MHz 2650. Sweep time : 1s Detection mode : SMPL Output power : Display scale : 2dB/div Adjust the power indication of 2650 to -15dBm. Spectru

19、m analyzer calibration unit (MICRONIX MFG206) 2650 Receiver for calibration 64 25.2 Accuracy of reference level Adjust the output level of the calibration unit so that the displayed value of this unit is the 0th div from the top, and calibrate the absolute value with the receiver for calibration (mi

20、crowave power meter, etc.). Setting of 2650 Reference level Specifications Measurement value Judgment +10dBm within 1.4dB1dot 0dBm within 1.4dB1dot -10dBm within 1.4dB1dot -15dBm within 0.8dBdot -20dBm within 1.4dB1dot -30dBm within 1.4dB1dot -40dBm within 1.4dB1dot * Input attenuator switching erro

21、r is included at the reference level other than -15dBm. Setting of 2650 Setting of calibration unit Center frequency : 100MHz Frequency : 100MHz Frequency span : 10MHz Output power : Adjust it so that the indicated RBW : 3MHz value of 2650 is at the 0th VBW : 1MHz div from the top. Sweep time : 1s D

22、etection mode : SMPL Display scale : 2dB/div 25.3 The display accuracy of the center frequency Measure the frequency with the peak search function of 2650. Setting of 2650 Center frequency Frequency span RBW Specifications Measurement value Judgment 100MHz 200kHz 3kHz within 130kHz1dot 100MHz 10MHz

23、30kHz within 130kHz1dot 100MHz 20MHz 100kHz within 800kHz1dot 100MHz 200MHz 100kHz within 800kHz1dot 1GHz 500MHz 100kHz within 800kHz1dot 1GHz 2GHz 3MHz within 800kHz1dot 1.65GHz FULL(3.3GHz) 3MHz within 800kHz1dot Setting of 2650 Setting of calibration unit Reference level : -15dBm VBW : AUTO Frequ

24、ency : Same as a center frequency of 2650. Sweep time : 1s Output power : -15dBm Detection mode : SMPL Display scale : 10dB/div * However, calibrate the signal generator in advance. 65 25.4 The display accuracy of the frequency span Adjust the frequency of the calibration equipment so that the peaks

25、 are at the positions of f1 and f9, and measure the frequencies of f1 and f9. Calculate from f1 and f9 the display accuracy of the frequency span. * f1: 1st div from the left on the trace screen f9: 9th div from the left on the trace screen Setting of 2650 Setting of calibration unit Reference level

26、 : -15dBm Frequency : Adjust it to the positions of f1 VBW : AUTO and f9. Sweep time : 1s Output power : Detection mode : SMPL -15dBm Display scale : 2dB/div 25.5 Linearity of the amplitude axis Adjust the level of the calibration unit so that the peak is at the top of the amplitude axis (0th div),

27、and regard the point set at that time as the reference. Gradually lower the output, starting from the reference, and measure the amplitude value of 2650. Setting of 2650 Display scales Output of calibration unit Specifications Measurement valueJudgment XdBm (adjust it to the 0th div) Reference(-15dB

28、m) (-15dBm) X-10dBm Within -25dBm0.8dB1dot 10dB/div X-70dBm Within -85dBm1.6dB1dot XdBm (adjust it to the 0th div) Reference(-15dBm) (-15dBm) X-2dB Within -17dBm0.2dB1dot 2dB/div X-10dB Within -25dBm0.8dB1dot Setting of 2650 Setting of calibration unit Center frequency : 100MHz Frequency : 100MHz Re

29、ference level : -15dBm Frequency span : 10MHZ RBW : 3MHz VBW : 1MHz Sweep time : 1s Detection mode SMPL Setting of 2650 Frequency span Center Frequency RBW Specifications f1 Measurement value f9 Measurement value (f9 - f1) 1.25 Judgment 200kHz 100MHz 3kHz within 26kHz 1dot 10MHz 100MHz 100kHz within

30、 320kHz 1dot 20MHz 100MHz 300kHz within 0.8NHz 1dot 200MHz 100MHz 3MHz within 6.2MHz 1dot 500MHz 1GHz 3MHz within 15.2MHz 1dot 2GHz 1GHz 3MHz within 60.2MHz 1dot FULL(3.3GHz) 1.65GHz 3MHz within 99.2MHz 1dot 66 Limited Two-Year Warranty B&K Precision Corp. warrants to the original purchaser that its

31、 product and the component parts thereof, will be free from defects in workmanship and materials for a period of two years from the data of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied

32、 by proof of the purchase date in the form a sales receipt. To obtain warranty coverage in the U.S.A., this product must be registered by completing and mailing the enclosed warranty card to B&K Precision Corp., 22820 Savi Ranch Parkway, Yorba Linda, CA 92887 within fifteen (15) days from proof of p

33、urchase. Exclusions: This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alternations or repairs. It is void if the serial number is alternated, defaced or removed. B&K Precision Corp. shall not be liable for any consequential damages, including

34、 without limitation damages resulting from loss of use. Some states do not allow limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific rights and you may have other rights, which vary from state-to- state. Model

35、 Number: _ Date Purchased: _ 22820 Savi Ranch Parkway Yorba Linda, CA 92887 Service Information Warranty Service: Please return the product in the original packaging with proof of purchase to the below address. Clearly state in writing the performance problem and return any leads, connectors and acc

36、essories that you are using with the device. Non-Warranty Service: Return the product in the original packaging to the below address. Clearly state in writing the performance problem and return any leads, connectors and accessories that you are using with the device. Customers not on open account mu

37、st include payment in the form of a money order or credit card. For the most current repair charges contact the factory before shipping the product. Return all merchandise to B&K Precision Corp. with pre-paid shipping. The flat-rate repair charge includes return shipping to locations in North Americ

38、a. For overnight shipments and non- North America shipping fees contact B&K Precision Corp. B&K Precision Corp. 22820 Savi Ranch Parkway Yorba Linda, CA 92887 Email: Include with the instrument your complete return shipping address, contact name, phone number and description of problem. 22820 Savi Ranch Parkway Yorba Linda, CA 92887 USA TEL: 714-921-9095 FAX: 714-921-6422 PN: 481-416-9-001 Rev. 08/03 Printed in Japan 2003 B&K Precision Corp.