BK PRECISION 2652_manua 电路图.pdf

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1、Instruction Manual 3.3GHz (Model 2650/2652) and 8.5GHz (Model 2658) Handheld Spectrum Analyzer series 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,

2、abnormal smell and smoke were confirmed, remove the battery and AC adapter and stop the use. 2) Never use with hands that got wet, because doing so may cause damage, fire and electric shock to the unit. 3) Never use it under the thunder. There is a possibility of receiving a thunderbolt. 4) Never us

3、e 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 specified

4、, 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 sufficient

5、 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 it will repair any failure free of charge if it occurs

6、 because of our responsibility within one year after delivery. 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 it while moving it after purchasing. 3) is caused by

7、 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 damage caused by use of this product or by a failur

8、e 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. The LCD may flicker on conditions of the low temperature and the dark backlight. In that case, adjust the LCD backlight control BLCTR

9、to be bright. However, do not be bright too much in order to keep battery operation time longer. Precautions for storage 1) Strictly observe the storage conditions specified for this unit, such as avoiding direct sunlight and dust. 2) Store this unit in a place where -20C to 60C, less than 60C/70%RH

10、, 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” OUTPUT 40 INPUT #1 A$ ”OK” READ 50 CLOSE #1 67 25. PC Software (optional) This is the software AK 2650 that controls 26

11、50/2652/2658 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 2650/2652/2658,1001 points of trace data are taken per sweep. When this software is used, all of these 1001 points data are transformed to a PC an

12、d 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 size 1024x768 or more computers. Operating system Windows 95/98/2000/Me/NT 4.0/XP Communication method Bidirectional co

13、mmunication 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 screen will appear. 3. Follow the instructions on the screen. * If the setup does not start, 1. Double-click on the My Computer

14、 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 software can be updated. Please contact to our company for details. 68 26. Basis Performance Test To keep the quality of the un

15、it, regular performance testing is recommended. This section describes a method and specification of basic performance testing. If a problem is found in the results of basic performance testing, or formal testing is needed, please contact the dealership where you purchased the product, or contact us

16、. Connection diagram 26.1 Frequency characteristics Adjust the output level of the spectrum analyzer calibration unit (thereafter, “calibration unit”) so that the displayed power value is -15dBm at each frequency for this unit, and measure the absolute value with a receiver for calibration (microwav

17、e power meter, etc.). Setting of 2650/2652/2658 Center frequency Frequency span RBW *1 Specifications Measurement value Judgment 50kHz 200kHz 10kHz Within Reference2.6dB1dot 100kHz 200kHz 30kHz Within Reference2.6dB1dot 1MHz 2MHz 100kHz Within Reference1.6dB1dot 10MHz 10MHz 3MHz Within Reference1.0d

18、B1dot 100MHz 10MHz 3MHz Reference 1GHz 10MHz 3MHz Within Reference1.0dB1dot 2GHz 10MHz 3MHz Within Reference1.0dB1dot 3.3GHz 10MHz 3MHz Within Reference1.0dB1dot 6.2GHz *2 10MHz 3MHz Within Reference1.0dB1dot 8.5GHz *2 10MHz 3MHz Within Reference1.0dB1dot *1 RBW switching error is included at RBW ot

19、her than 3MHz. *2 2658 only Setting of 2650/2652/2658 Setting of calibration unit Reference level : -15dBm Frequency : Same as a center frequency of VBW : 1MHz 2650/2652/2658. Sweep time : 1s Detection mode : SMPL Output power : Display scale : 2dB/div Adjust the power indication of 2650/2652/2658 t

20、o -15dBm. Spectrum analyzer calibration unit 2650/2652/2658 Receiver for calibration 69 26.2 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 calibr

21、ation (microwave power meter, etc.). Setting of 2650/2652/2658 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 attenu

22、ator switching error is included at the reference level other than -15dBm. Setting of 2650/2652/2658 Setting of calibration unit Center frequency : 100MHz Frequency : 100MHz Frequency span : 10MHz Output power : Adjust it so that the indicated RBW : 3MHz value of 2650/2652/2658 VBW : 1MHz is at the

23、0th div from the top. Sweep time : 1s Detection mode : SMPL Display scale : 2dB/div 26.3 The display accuracy of the center frequency Measure the frequency with the peak search function of 2650/2652/2658. Setting of 2650/2652/2658 Center frequency Frequency span RBW Specifications Measurement value

24、Judgment 100MHz 200kHz 3kHz 100MHz 10MHz 30kHz within 50kHz1dot RBW6% 100MHz 20MHz 100kHz 100MHz 200MHz 100kHz 1GHz 20MHz 100kHz 2GHz 20MHz 100kHz 3.3GHz *1 20MHz 100kHz within 800kHz1dot RBW30%2650 within 360kHz1dot RBW30%2658 6.1GHz *2 20MHz 100kHz 8.5GHz *2 20MHz 100kHz within 360kHz1dot RBW30%26

25、58 *1 2650 only *2 2658 only Setting of 2650/2652/2658 Setting of calibration unit Reference level : -15dBm VBW : AUTO Frequency : Same as a center frequency of 2650/2652/2658. Sweep time : 1s Output power : -15dBm Detection mode : SMPL Display scale : 10dB/div * However, calibrate the signal genera

26、tor in advance. 70 26.4 The display accuracy of the frequency span Adjust the frequency of the calibration equipment so that the peaks 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. *1 2650/2652 *2 265

27、8 only Setting of 2650/2652/2658 Setting of calibration unit Reference level : -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 26.5 Linearity of the amplitude axis Adjust the level of the calib

28、ration unit so that the peak is at the top of the amplitude axis (0th div), 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 2650/2652/2658. Setting of 2650/2652/2658 Display scales Output of calibrati

29、on unit Specifications Measurement value Judgment XdBm (adjust it to the 0th div) Reference(-15dBm) (-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 -25dBm0.8d

30、B1dot Setting of 2650/2652/2658 Setting of calibration unit Center frequency : 100MHz Frequency : 100MHz Reference level : -15dBm Frequency span : 10MHZ RBW : 3MHz VBW : 1MHz Sweep time : 1s Detection mode SMPL Setting of 2650/2652/2658 Frequency span Center Frequency RBW Specifications f1 Measureme

31、nt value f9 Measurement value (f9 - f1) 1.25 Judgment 200kHz 100MHz 3kHz within 26kHz 1dot 10MHz 100MHz 100kHz within 320kHz 1dot 20MHz 100MHz 300kHz within 0.8MHz 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 1.65GH

32、z 3MHz within 99.2MHz 1dot 2GHz *2 4.8GHz within 60.2MHz 1dot 2GHz *2 7.4GHz within 60.2MHz 1dot FULL(8.5GHz)*2 4.25GHz within 255.2MHz 1dot * f1: 1st div from the left on the trace screen f9: 9th div from the left on the trace screen Limited Two-Year Warranty B&K Precision Corp. warrants to the ori

33、ginal purchaser that its 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 pro

34、duct must be accompanied 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 (

35、15) days from proof of purchase. 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 conseque

36、ntial damages, including 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 fro

37、m state-to- state. Model 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 l

38、eads, connectors and accessories 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. Customer

39、s not on open account must 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 l

40、ocations in North America. 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 OM-040055EB Rev. 07/10 Printed in Japan 2007 B&K Precision Corp.