Rohde & Schwarz R&S SMR20 Service Manual
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Rohde & Schwarz R&S SMR20 Service Manual

Rohde & Schwarz R&S SMR20 Service Manual

Mikrowellen-signalgenerator
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Printed in the Federal
Republic of Germany
1104.3430.82
www.valuetronics.com
Service Manual Instrument
MIKROWELLEN-SIGNALGENERATOR
R&S SMR20
1104.0002.20
R&S SMR27
1104.0002.27
R&S SMR30
1104.0002.30
R&S SMR40
1104.0002.40
R&S SMR50
1104.0002.50
R&S SMR60
1104.0002.60
Test and Measurement
Division
1
E-2

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Summary of Contents for Rohde & Schwarz R&S SMR20

  • Page 1 Test and Measurement Division Service Manual Instrument MIKROWELLEN-SIGNALGENERATOR R&S SMR20 1104.0002.20 R&S SMR27 1104.0002.27 R&S SMR30 1104.0002.30 R&S SMR40 1104.0002.40 R&S SMR50 1104.0002.50 R&S SMR60 1104.0002.60 Printed in the Federal Republic of Germany 1104.3430.82 www.valuetronics.com...
  • Page 2 www.valuetronics.com...

  • Page 3: Table Of Contents

    Contents Contents 1 Performance Test ....................1.1 Preliminary............................1.1 Measuring Equipment and Accessories..................1.1 Test Setups for Measuring Modulation Characteristics .............. 1.3 Standard Test Setup........................ 1.3 Test Setup for Measuring Pulse Modulation................1.3 Test Procedure..........................1.4 Display and Keyboard......................1.4 Frequency Setting........................
  • Page 4 Before putting the product into operation for the first time, make sure to read the following S a f e t y I n s t r u c t i o n s Rohde & Schwarz makes every effort to keep the safety standard of its products up to date and to offer its customers the highest possible degree of safety.
  • Page 5 Safety Instructions Observing the safety instructions will help prevent personal injury or damage of any kind caused by dangerous situations. Therefore, carefully read through and adhere to the following safety instructions before putting the product into operation. It is also absolutely essential to observe the additional safety instructions on personal safety that appear in other parts of the documentation.
  • Page 6 Safety Instructions 4. If products/components are mechanically 10. Intentionally breaking the protective earth and/or thermically processed in a manner connection either in the feed line or in the that goes beyond their intended use, product itself is not permitted. Doing so can hazardous substances (heavy-metal dust result in the danger of an electric shock such as lead, beryllium, nickel) may be...
  • Page 7 Safety Instructions 19. If a product is to be permanently installed, matching Rohde & Schwarz type (see the connection between the PE terminal on spare parts list). Batteries and storage site and the product's PE conductor must batteries are hazardous waste. Dispose of be made first before any other connection them only in specially marked containers.

  • Page 8: Informaciones De Seguridad

    Por favor lea imprescindiblemente antes de la primera puesta en funcionamiento las siguientes informaciones de seguridad Informaciones de seguridad Es el principio de Rohde & Schwarz de tener a sus productos siempre al día con los estandards de seguridad y de ofrecer a sus clientes el máximo grado de seguridad. Nuestros productos y todos los equipos adicionales son siempre fabricados y examinados según las normas de seguridad vigentes.
  • Page 9 Informaciones de seguridad Tener en cuenta las informaciones de seguridad sirve para tratar de evitar daños y peligros de toda clase. Es necesario de que se lean las siguientes informaciones de seguridad concienzudamente y se tengan en cuenta debidamente antes de la puesta en funcionamiento del producto. También deberán ser tenidas en cuenta las informaciones para la protección de personas que encontrarán en otro capítulo de esta documentación y que también son obligatorias de seguir.
  • Page 10 Informaciones de seguridad seguridad (control a primera vista, control de peligro a causa de la radiación conductor protector, medición de resistencia electromagnética. El empresario está de aislamiento, medición de medición de la comprometido a valorar y señalar areas de corriente conductora, control trabajo en las que se corra un riesgo de...
  • Page 11 Informaciones de seguridad 12. No utilice nunca el producto si está dañado el 20. En caso de que los productos que son cable eléctrico. Asegure a través de las instalados fijamente en un lugar sean sin medidas de protección y de instalación protector implementado, autointerruptor o adecuadas de que el cable de eléctrico no similares objetos de protección, deberá...
  • Page 12 Informaciones de seguridad 27. Baterías y acumuladores no deben de ser 31. Las asas instaladas en los productos sirven expuestos a temperaturas altas o al fuego. solamente de ayuda para el manejo que Guardar baterías y acumuladores fuera del solamente está previsto para personas. Por alcance de los niños.
  • Page 13 Certified Quality System DIN EN ISO 9001 : 2000 DIN EN 9100 : 2003 DIN EN ISO 14001 : 1996 DQS REG. NO 001954 QM/ST UM QUALITÄTSZERTIFIKAT CERTIFICATE OF QUALITY CERTIFICAT DE QUALITÉ Sehr geehrter Kunde, Dear Customer, Cher Client, Sie haben sich für den Kauf eines you have decided to buy a Rohde &...

  • Page 14: Customer Support

    Customer Support Technical support – where and when you need it For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde &...
  • Page 15 Adressen/Addresses (Tel) Phone Rohde & Schwarz-Österreich Ges.m.b.H. (Tel) +43 (1) 602 61 41-0 FIRMENSITZ/HEADQUARTERS Austria (Fax) Fax Am Europlatz 3 (Fax) +43 (1) 602 61 41-14 E-mail Gebäude B rs-austria@rsoe.rohde-schwarz.com 1120 Wien Rohde & Schwarz GmbH & Co. KG (Tel) +49 (89) 41 29-0 Mühldorfstraße 15 ·...
  • Page 16 Adressen/Addresses Rohde & Schwarz China Ltd. (Tel) +86 (28) 86 52 76 06 Zweigniederlassung Büro Bonn (Tel) +49 (228) 918 90-0 China Germany Representative Office Chengdu (Fax) +86 (28) 86 52 76 10 Josef-Wirmer-Straße 1-3 · D-53123 Bonn (Fax) +49 (228) 25 50 87 Unit G, 28/F, First City Plaza sophia.chen@rsbp.rohde- Postfach 140264 ·...
  • Page 17 Adressen/Addresses Rohde & Schwarz Kazakhstan (Tel) +7 (32) 72 67 23 54 Rohde & Schwarz India Pvt. Ltd. (Tel) +91 (22) 26 30 18 10 Kazakhstan India Representative Office Almaty (Fax) +7 (32) 72 67 23 46 Mumbai Office (Fax) +91 (22) 26 73 20 81 Pl.
  • Page 18 Adressen/Addresses Rohde & Schwarz Nederland B.V. (Tel) +31 (30) 600 17 00 Gentec (Tel) +966 (1) 293 20 35 Netherlands Saudi Arabia Perkinsbaan 1 (Fax) +31 (30) 600 17 99 Haji Abdullah Alireza & Co. Ltd. (Fax) +966 (1) 466 16 57 3439 ND Nieuwegein info@rsn.rohde-schwarz.com P.O.Box 43054...
  • Page 19 Adressen/Addresses Rohde & Schwarz UK Ltd. (Tel) +44 (870) 735 16 42 Rohde & Schwarz Taiwan (Pvt.) Ltd. (Tel) +886 (2) 28 93 10 88 Taiwan United 3000 Manchester Business Park (Fax) +44 (1252) 81 14 77 Floor 14, No. 13, Sec. 2, Pei-Tou Road (Fax) +886 (2) 28 91 72 60 Kingdom Aviator Way...
  • Page 20 www.valuetronics.com...
  • Page 21 www.valuetronics.com...

  • Page 22: Performance Test

    Preliminary 1 Performance Test Preliminary • The performance test of SMR is to be carried out after a warmup period of 30 minutes. • The values stated hereinafter are not guaranteed values. Only the data sheet specifications are binding. • The values specified in the data sheet are guaranteed limits. To these limits, the tolerances of the instruments used in the performance test must be added because of their measurement uncertainty.
  • Page 23 Measuring Equipment and Accessories Item Instrument type Recommended Recommended R&S characteristics equipment Order No. Modulation analyzer 10 Hz to 5 MHz Standard test setup for modulation characteristics Audio/LF analyzer 10 Hz to 5 MHz Standard test setup for LF generator and level meter modulation characteristics up to 5 MHz, LF generator:...

  • Page 24: Test Setups For Measuring Modulation Characteristics

    Test Setups for Measuring Modulation Characteristics Test Setups for Measuring Modulation Characteristics Standard Test Setup Test equipment Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Modulation analyzer (Table "Measuring Equipment and Accessories", item 6) Audio/LF analyzer (Table "Measuring Equipment and Accessories", item 7) Test setup Spectrum EXT1...

  • Page 25: Test Procedure

    Test Procedure Test Procedure Display and Keyboard Testing Display ½ Switch the unit on. A menu should be displayed after a few seconds. Keyboard ½ Press keys and check the response on the display. Frequency Setting Measuring equipment Frequency counter (Table "Measuring Equipment and Accessories", item 2) Test method The frequency of the output signal is measured with a frequency counter...

  • Page 26: Reference Frequency

    Test Procedure Reference Frequency Measuring equipment Frequency counter (Table "Measuring Equipment and Accessories", item 2) Test setup Connect calibrated frequency counter to the REF output (SMR rear panel). Measurement Measure frequency. ½ Standard ............. < 30 Hz per year of operation With option SMR-B1 ..<...
  • Page 27 Test Procedure Model RF frequencies SMR50 without option SMR-B11 1 GHz to 25 GHz (in steps of 50 MHz) for 2nd harmonic 1 GHz to 16.6 GHz (in steps of 50 MHz) for 3rd harmonic with option SMR-B11 10 MHz to <1 GHz (in steps of 20 MHz) 1 GHz to 25 GHz (in steps of 50 MHz) for 2nd harmonic 1 GHz to 16.6 GHz (in steps of 50 MHz) for 3rd harmonic SMR60...

  • Page 28: Subharmonics

    Test Procedure Subharmonics Measuring equipment Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect spectrum analyzer to RF output of SMR. Measurement ½ Measure subharmonics (fundamental x 0.5 or x 1.5) for each RF frequency. Subharmonics outside the nominal frequency range of the SMR model under test need not be measured.

  • Page 29: Nonharmonics

    Test Procedure Nonharmonics Measuring equipment Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect spectrum analyzer to RF output of SMR. Measurement For each RF frequency, measure all nonharmonics over the entire frequency range of your SMR model. Exception: <± 50 kHz from carrier. ½...

  • Page 30: Ssb Phase Noise

    Test Procedure SSB Phase Noise Measuring equipment Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect spectrum analyzer to RF output of SMR. Measurement Measure SSB phase noise at 10 kHz from carrier at each RF frequency. ½...

  • Page 31: Maximum Rf Level

    Test Procedure Maximum RF Level Important: Measure maximum RF level at room temperature (23 °C ± 5 °C). Measuring equipment RF power meter (Table "Measuring Equipment and Accessories", item 4/5) Test setup Connect RF power meter to RF output of SMR. Measurement ½...
  • Page 32 Test Procedure Table 1-11 Maximum RF level without options SMR-B23/-B24 SMR20 SMR27/30/40 SMR50/60 RF frequency without with option without withoption without with option option SMR-B15 option SMR-B15/- option SMR-B18 SMR-B15 SMR-B15/- SMR-B18 10 MHz to <1 GHz >+13 dBm >+12 dBm >+11 dBm 1 GHz to <18 GHz >+11 dBm...

  • Page 33: Rf Level Accuracy

    Test Procedure RF Level Accuracy Important: Measure level accuracy at room temperature (23 °C ± 5 °C). Measuring equipment RF power meter (Table "Measuring Equipment and Accessories", item 4/5) Test setup Connect RF power meter to RF output of SMR. Measurement ½...

  • Page 34: Setting Of Am Modulation Depth (Option Smr-B5)

    Test Procedure Setting of AM Modulation Depth (Option SMR-B5) Measuring equipment Standard test setup (see "Measuring Equipment and Accessories“) Measurement ½ Settings on SMR: - Press PRESET - Select Modulation \ AM \ AM Source \ LFgen - Modulation frequency: 1 kHz - For RF frequencies see Table 1-14 - Level: -2.9 dBm (f >...

  • Page 35: Am Frequency Response (Option Smr-B5)

    Test Procedure Table 1-15 Recommended RF frequencies Model RF frequencies SMR20 without option SMR-B11 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz with option SMR-B11 100 MHz, 999 MHz, 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz SMR27 without option SMR-B11 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz, 27.0 GHz with option SMR-B11 100 MHz, 999 MHz, 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz, 27.0 GHz...
  • Page 36 Test Procedure Table 1-16 Recommended RF frequencies Model RF frequencies SMR20 without option SMR-B11 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz with option SMR-B11 100 MHz, 999 MHz, 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz SMR27 without option SMR-B11 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz, 27.0 GHz with option SMR-B11 100 MHz, 999 MHz, 1.0 GHz, 2.0 GHz, 10.0 GHz, 20.0 GHz, 27.0 GHz...

  • Page 37: Amplitude Shift Keying (Ask) (Option Smr-B5)

    Test Procedure Amplitude Shift Keying (ASK) (Option SMR-B5) Measuring equipment Standard test setup (see "Measuring Equipment and Accessories“) Measurement ½ Settings on SMR: - Press PRESET - Select Digital Mod \ ASK \ Source \ On - Modulation depth: 80 % - For RF frequencies see - Level: -4 dBm (f >...
  • Page 38 Test Procedure Table 1-19 Recommended RF frequencies Model RF frequencies SMR20 without option SMR-B11 20.0 GHz with option SMR-B11 999 MHz, 20.0 GHz SMR27 without option SMR-B11 27.0 GHz with option SMR-B11 999 MHz, 27.0 GHz SMR30 without option SMR-B11 30.0 GHz with option SMR-B11 999 MHz, 30.0 GHz...

  • Page 39: Setting Of Fm Deviation (Option Smr-B5)

    Test Procedure Setting of FM Deviation (Option SMR-B5) Measuring equipment Standard test setup (see "Measuring Equipment and Accessories“) Measurement ½ Settings on SMR: - Press PRESET - Select Modulation \ FM \ FM Source \ Ext1 - Frequency deviation: 100 kHz - RF frequency: 2 GHz - Level: 0 dBm ½...

  • Page 40: Carrier Frequency Offset With Fm (Option Smr-B5)

    Test Procedure Table 1-21 Recommended modulation frequencies Modulation frequencies 20 kHz, 30 kHz, 40 kHz, 50 kHz, 60 kHz, 80 kHz, 100 kHz, 120 kHz, 140 kHz, 160 kHz, 180 kHz, 200 kHz, 400 kHz, ... , 5 MHz (from 200 kHz to 5 MHz in steps of 200 kHz) Carrier Frequency Offset with FM (Option SMR-B5) Measuring equipment Frequency counter (Table "Measuring Equipment and Accessories",...

  • Page 41: Pulse Modulation: Rise/Fall Time

    Test Procedure Pulse Modulation: Rise/Fall Time Measuring equipment Test setup for pulse modulation (see "Measuring Equipment and Accessories“) Measurement ½ Settings on SMR: - Press PRESET - Select Modulation \ Pulse \ Source \ Ext - Polarity: Norm - External impedance: 50 Ω - For RF frequencies see Table 1-22 - Level: -2 dBm (SMR60, f ≥...

  • Page 42: Pulse Modulation: On/Off Ratio

    Test Procedure Pulse Modulation: On/Off Ratio Measuring equipment Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect spectrum analyzer to RF output of SMR. Make sure that no external equipment (eg pulse generator) is connected to PULSE input of SMR.

  • Page 43: Lf Generator (Option Smr-B5): Frequency Error

    Test Procedure LF Generator (Option SMR-B5): Frequency Error Measuring equipment Audio / LF analyzer (Table "Measuring Equipment and Accessories", item 7) Test setup Connect audio / LF analyzer to LF output of SMR. Measurement ½ Settings on SMR: - Press PRESET - Select LfOutput \ State On - Select LfOutput \ LfGen Shape Sin - Voltage: 1V...

  • Page 44: Lf Generator (Option Smr-B5): Distortion

    Test Procedure LF Generator (Option SMR-B5): Distortion Measuring equipment Audio / LF analyzer (Table "Measuring Equipment and Accessories", item 7) Test setup Connect audio / LF analyzer to LF output of SMR. Measurement ½ Settings on SMR: - Press PRESET - Select LfOutput \ State On - Select LfOutput \ LfGen Shape Sin - Voltage: 0.5 V...

  • Page 45: Analog Ramp Sweep (Option Smr-B4)

    Test Procedure Table 1-25 Recommended pulse repetition period / pulse width Pulse repetition period Pulse width 1 µs 100 ns 10 µs 1 µs 100 µs 10 µs Table 1-26 Recommended pulse width / max. permissible error Pulse width Max. permissible error 1 µs 3.01 ns 10 µs...

  • Page 46: If Input (Option Smr-B23/-B24): Measurement Of If Frequency Response

    Test Procedure IF Input (Option SMR-B23/-B24): Measurement of IF Frequency Response Measuring equipment Signal generator (Table "Measuring Equipment and Accessories", item 13) Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect signal generator to IF input of SMR. Connect spectrum analyzer to RF output of SMR.

  • Page 47: If Input (Option Smr-B23/-B24): Measurement Of Rf Frequency Response

    Test Procedure IF Input (Option SMR-B23/-B24): Measurement of RF Frequency Response Measuring equipment Signal generator (Table "Measuring Equipment and Accessories", item 13) Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect signal generator to IF input of SMR. Connect spectrum analyzer to RF output of SMR.
  • Page 48 Test Procedure Table 1-29 Recommended IF frequencies / test frequencies LO frequencies Test frequencies (spectrum analyzer) (RF frequencies of SMR) SMR20 SMR27 SMR30 SMR40 1 GHz 1.01 GHz 2 GHz 2.01 GHz 2.01 GHz 2.01 GHz 2.01 GHz 3 GHz 3.01 GHz 3.01 GHz 3.01 GHz...

  • Page 49: If Input (Option Smr-B25): Measurement Of If Frequency Response

    Test Procedure IF Input (Option SMR-B25): Measurement of IF Frequency Response Measuring equipment Signal generator (Table "Measuring Equipment and Accessories", item 14) Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect signal generator to IF input of SMR (DUT). Connect spectrum analyzer to RF output of SMR.

  • Page 50: If Input (Option Smr-B25): Measurement Of Rf Frequency Response

    Test Procedure IF Input (Option SMR-B25): Measurement of RF Frequency Response Measuring equipment Signal generator (Table "Measuring Equipment and Accessories", item 14) Spectrum analyzer (Table "Measuring Equipment and Accessories", item 3) Test setup Connect signal generator to IF input of SMR (DUT). Connect spectrum analyzer to RF output of SMR.
  • Page 51 Test Procedure LO frequencies Test frequencies (spectrum analyzer) (RF frequencies of SMR (DUT)) SMR (item14) set to 40 SMR (item14) set to 6 14 GHz 14.04 GHz 20 GHz 15 GHz 15.04 GHz 16 GHz 16.04 GHz 17 GHz 17.04 GHz 18 GHz 18.04 GHz 19 GHz...

  • Page 52: Performance Test Report

    Performance Test Report Performance Test Report Table 1-32 Performance Test Report ROHDE & SCHWARZ Performance Test Report Microwave Signal Generator SMR20/27/30/40__Order No.: 1104.0002.__ or SMR50/60__Order No.: 1134.9008.__ Model (SMR20/27/30/40/50/60): Serial number: Tested by: Date: Signature: Parameter tested See page Min. value Actual value Max.
  • Page 53 Performance Test Report Parameter tested See page Min. value Actual value Max. value Unit Tolerance limits Maximum RF level 1.10 0.01 to < 1 GHz ________ ________ 1 to < 18 GHz ________ ________ 18 to 20 GHz ________ ________ >...
  • Page 54 Performance Test Report Parameter tested See page Min. value Actual value Max. value Unit Tolerance limits FM frequency 1.18 ________ response Carrier frequency 1.19 offset with FM ________ Pulse modulation: 1.20 rise/fall time ________ Pulse modulation: 1.21 on/off ratio ________ LF generator: 1.22 frequency error...
  • Page 55 Performance Test Report Parameter tested See page Min. value Actual value Max. value Unit Tolerance limits IF input: 1.25 measurement of IF frequency response 1.28 IF frequency 10 MHz ________ 40 MHz ________ 100 MHz ________ 200 MHz ________ 300 MHz ________ 400 MHz ________...
  • Page 56 Performance Test Report Parameter tested See page Min. value Actual value Max. value Unit Tolerance limits IF input: measurement 1.26 of RF frequency response 1.29 RF frequency ________ 1 GHz ________ 2 GHz ________ 3 GHz ________ 4 GHz ________ 5 GHz ________ 6 GHz...

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