RF & Communication Trainer GRF-1300A STUDENT BOOK USER MANUAL and TEXT BOOK GW INSTEK PART NO. 82RF-1300AM01 ISO-9001 CERTIFIED MANUFACTURE
GRF-1300A User Manual and Teaching Materials Package Contents This package contains the GRF-1300A unit, RF cable – 3 * 10cm, 1*20cm,RF cab
GRF-1300A User Manual and Teaching Materials diagram below. Up conversionDown conversionLωcLωω+Lcωω− We can see from the spectrum shift in
RF Communication and Signals Experiments Substituting U 011 1 2 2 3 322 221 1 2 2 3 333 331 1 2 2 3 331 3231231 2312(cos cos cos )( c
GRF-1300A User Manual and Teaching Materials 10lgIcRPGP= In the formula, both the RF input power RPand IF output power IP use dBm as the uni
RF Communication and Signals Experiments non-linear distortion as shown in Figure 10-3 The figure shows that the conversion compressio
GRF-1300A User Manual and Teaching Materials Experiment contents 1. Observe frequency shift. 2. Measure port isolation and conversion gai
RF Communication and Signals Experiments table 10-1. Step5 5. Adjust the frequency of the RF output in the RF Synthesizer/FM modul
GRF-1300A User Manual and Teaching Materials 11. Maintain the same connections as used in step 10. Connect the output port in the Base Band
RF Communication and Signals Experiments shifting result 880MHz Amplitude of each frequency point: 890MHz Amplitude of each frequen
GRF-1300A User Manual and Teaching Materials Conversion gain Gain: IF In port isolation Isolation: Table 10 -2 Calculation of gain and iso
RF Communication and Signals Experiments FM modulated signal AM modulated signal 1. What are the characteristics of a bandpass filt
Introduction to the GRF-1300A LO-IF ≥-35dBm Mixer+modulation ≥-60dBm Bandpass Filter Frequency Centre:
GRF-1300A User Manual and Teaching Materials TEST for LEARNING OUTCOMES In the previous experiments, we introduced the concepts behind phase
Test for Learning Outcomes Fault 2 Fault description Hypothesis: Verification: 2: FM F
GRF-1300A User Manual and Teaching Materials Fault description Hypothesis: Verification: Fault 3 Fault description: Hypothesi
Test for Learning Outcomes Verification: 3:AM Fault Simulation Fault 1 Fault description: H
GRF-1300A User Manual and Teaching Materials Fault 3 Fault description Hypothesis: Verification: Fault 4 Fault description:
Test for Learning Outcomes NOTES 113
GRF-1300A User Manual and Teaching Materials NOTES 114
Test for Learning Outcomes NOTES 115
GRF-1300A User Manual and Teaching Materials 116 NOTES
Appendix APPENDIX We have included some commonly-used conversion
GRF-1300A User Manual and Teaching Materials used to adjust the frequency of the baseband signal. The baseband module is adjustable in 10kHz
GRF-1300A User Manual and Teaching Materials The relationship between dB and dBc The figures in the table above are based on a 50Ω load.
Appendix Resistor Values in π-type Resistance Attenuators 50
GRF-1300A User Manual and Teaching Materials Resistor Values in T-type Resistance Attenuators 50Ω50ΩR1 R2R3 dB R1 R2 R3 1 2.88 433.
Appendix Modulation Index and Sideband Amplitude Comparison Tabl
GRF-1300A User Manual and Teaching Materials Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. No. 7-1, Jhongsing Rd, Tucheng Dis
Introduction to the GRF-1300A • The Four-digit display is used to display the frequency of the carrier s
GRF-1300A User Manual and Teaching Materials 7. There are five test points (Tp1, Tp2, Tp3, Tp4, Tp5) on the panel. These five test points
Introduction to the GRF-1300A Figure A-8. Software installation • Next, click on the “Continue Anywa
GRF-1300A User Manual and Teaching Materials Figure A-10. Operation interface for HyperTerminal 14
Introduction to the GRF-1300A 15 9. Below is a table listing each instruction and a description of each fu
GRF-1300A User Manual and Teaching Materials OVERVIEW of the TIME and FREQUENCY DOMAIN Observation from a different perspective When a sig
Overview of the Time and Frequency Domain from an oscilloscope and power (dBm) from a spectrum analyzer. Voltage and power can be converte
This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied,
GRF-1300A User Manual and Teaching Materials Time domain Frequency domain 18
Overview of the Time and Frequency Domain NOTES 19
GRF-1300A User Manual and Teaching Materials NOTES 20
Overview of the Time and Frequency Domain NOTES 21
GRF-1300A User Manual and Teaching Materials NOTES 22
Overview of the Time and Frequency Domain 23 NOTES
GRF-1300A User Manual and Teaching Materials AN INTRODUCTION to SPECTRUM ANALYZERS Spectrum analyzers are one of the most important instrume
An Introduction to Spectrum Analyzers Figure B-1. The basic structure of a broadband receiver Tunable LOsRF Input Detec
GRF-1300A User Manual and Teaching Materials Figure B-3. Basic structure of a resolution bandwidth filter Mixers AttenuatorsTunable LOs
An Introduction to Spectrum Analyzers Figure B-5. The effect of different RBWs (2) Signal under testRBW ResultsRBW1RBW2
Table of Contents Table of Contents SAFETY INSTRUCTIONS ...
GRF-1300A User Manual and Teaching Materials Figure B-8 shows how the VBW affects the displayed output. If the signal under test passes thr
An Introduction to Spectrum Analyzers NOTES 29
GRF-1300A User Manual and Teaching Materials NOTES 30
An Introduction to Spectrum Analyzers RF COMMUNICATION and SIGNALS EXPERIMENTS In this chapter we will explain the basic ope
GRF-1300A User Manual and Teaching Materials Experiment 1: Basic Operation of a Spectrum Analyzer Relevant information In addition to the s
RF Communication and Signals Experiments 33 The figure above is a screen shot from a typical spectrum analyzer display. The horizonta
GRF-1300A User Manual and Teaching Materials Step3 F1 30 Step4 BWF1 3. Now we should see some signals on the spectrum analyzer screen.
RF Communication and Signals Experiments Frequency: _____Amplitude:_____ Frequency: _____Amplitude:_____ Table 1-1. Frequency and
GRF-1300A User Manual and Teaching Materials Experiment 2: Measuring a Baseband Waveform Relevant information Relative to oscilloscopes, sp
RF Communication and Signals Experiments Step2 UP Step3 3. Connect the baseband signal from the output port of the GRF-1300A to the
GRF-1300A User Manual and Teaching Materials SAFETY INSTRUCTIONS This chapter contains important safety instructions that should be followed
GRF-1300A User Manual and Teaching Materials After step 6 is done, make sure the "Delta" marker is used for the next steps and no
RF Communication and Signals Experiments The 2nd harmonic ratio is: The 3rd harmonic ratio is: Table 2-1. 1MHz sine wave spectr
GRF-1300A User Manual and Teaching Materials Experiment 3: Different Baseband Waveforms and their Harmonic Measurement Relevant information
RF Communication and Signals Experiments Experiment principles Set the waveform on the GRF-1300A and measure the harmonic spectrum. S
GRF-1300A User Manual and Teaching Materials • Reference level: 0dBm • RBW: Auto Step1 F10 Step2 F15 Step3 AmplitudeF1 Step4 F1 5.
RF Communication and Signals Experiments Step9 Marker After the spectrogram on table 3-3 is drawn, measure the harmonic ratio of e
GRF-1300A User Manual and Teaching Materials Table 3-2. Time domain waveform of the 1MHz triangle wave. Table 3-3. 1MHz square wave spec
RF Communication and Signals Experiments 2. For the triangle waveform, measure the harmonic ratio of the 3rd and 5th harmonic. For t
GRF-1300A User Manual and Teaching Materials Harmonic ratio of the 2nd harmonic (square wave) Harmonic ratio of the 3rd harmonic (square
RF Communication and Signals Experiments Experiment 4: Measurement of the RF Carrier Relevant information In communication systems, R
Safety Instructions (Measurement categories) EN 61010-1:2010 specifies the measure
GRF-1300A User Manual and Teaching Materials Figure 4-1. PLL circuit structure Above: PD is the phase-locked loop phase detector, LF is
RF Communication and Signals Experiments Experiment contents 1. Measure the RF signal spectrum. 2. Measure the harmonic distortion o
GRF-1300A User Manual and Teaching Materials For the last two steps, the span is quite large, and may produce some errors. To find the seco
RF Communication and Signals Experiments marker function on the spectrum analyzer to measure the value. Step6 Marker1 0 Record the
GRF-1300A User Manual and Teaching Materials Step12 F11 0 Step13 Record the carrier power. Set the deviation carrier frequency fm to a
RF Communication and Signals Experiments Table 4-2. RF Signal Spectrum 2nd Harmonic measurement 3rd Harmonic measurement 53
GRF-1300A User Manual and Teaching Materials 3. Phase noise measurement results Carrier Frequency Experiment results 875MHz Carrier frequ
RF Communication and Signals Experiments Questions 1. A PLL circuit is formed by which parts? Explain the function of each part. 2.
GRF-1300A User Manual and Teaching Materials NOTES 56
RF Communication and Signals Experiments NOTES 57
GRF-1300A User Manual and Teaching Materials Disposal Do not dispose this device as unsorted municipal waste. Please use a separate collect
GRF-1300A User Manual and Teaching Materials NOTES 58
RF Communication and Signals Experiments NOTES 59
GRF-1300A User Manual and Teaching Materials Experiment 5: AM Signal Measurement Relevant information Message signals are usually of a low
RF Communication and Signals Experiments This experiment begins with AM to learn some modulation theory. AM uses the modulating signal
GRF-1300A User Manual and Teaching Materials (unmodulated state) to an AM wave (modulated state). Figure 5-1. A diagram showing how an unmod
RF Communication and Signals Experiments Figure 5-3. Spectrum of an AM wave Ucm1/2maUcm1/2maUcmc −ωΩcω+Ωcω From the above analy
GRF-1300A User Manual and Teaching Materials 4. Set up the GSP-730 as follows: • Center frequency:880MHz • Span: 5MHz • Reference level
RF Communication and Signals Experiments 8. Turn the potentiometer clockwise to the maximum. Adjust the UP button on the Baseband modu
GRF-1300A User Manual and Teaching Materials Experiment results 1. Changing modulating voltage Modulating voltage Experiment results Vpp:
RF Communication and Signals Experiments Carrier power: :_____ Modulation index: :_____Lower sideband power: :_____ Conclusion: 2.
Introduction to the GRF-1300A ABOUT THIS BOOK This textbook was developed in conjunction with the GRF-1300A
GRF-1300A User Manual and Teaching Materials 600kHz Carrier power: :_____ Lower sideband power: :_____ Conclusion: 3. Changing the carr
RF Communication and Signals Experiments 878MHz Conclusion: Questions 1. If we change the frequency of the modulating wave but k
GRF-1300A User Manual and Teaching Materials Experiment 6: FM signal measurement Relevant information Since frequency modulation is a commo
RF Communication and Signals Experiments And the carrier signal is uc(t) = Ucm cosωc t = Ucmcos2πfc t An FM signal varying to change
GRF-1300A User Manual and Teaching Materials is the offset of the angular frequency determined by the modulating signal UΩ The general expre
RF Communication and Signals Experiments carrier frequency. The amplitude of each component depends on the Bessel functions. Theoretic
GRF-1300A User Manual and Teaching Materials low-pass filter passband to achieve a phase-locked FM wave. When the center frequency of the VC
RF Communication and Signals Experiments Step1 F18 0 Step2 F15 Step3 F10 Step4 F1 4. Use the Marker function on the spectrum a
GRF-1300A User Manual and Teaching Materials Step10 UP 10.Change the modulating signal frequency to 1MHz. Observe the change in the spectru
RF Communication and Signals Experiments Experiment results 1. Changing the amplitude of the modulating signal. Modulating voltage E
GRF-1300A User Manual and Teaching Materials INTRODUCTION to the GRF-1300A The GRF-1300A is a well designed training kit capable of producin
GRF-1300A User Manual and Teaching Materials Frequency deviation: FM index: Conclusion 2. Changing the frequency of an FM signal. Modula
RF Communication and Signals Experiments 1MHz Conclusion 3. Changing the carrier frequency Carrier frequency Experimental res
GRF-1300A User Manual and Teaching Materials 890MHz Conclusion 4. Draw a table to record the time domain waveform of the AM wave that is
RF Communication and Signals Experiments Experiment 7: Using a Spectrum Analyzer in Communication Systems Relevant information ACPR a
GRF-1300A User Manual and Teaching Materials Experiment principles 1. ACPR Measurement ACPR (Adjacent Channel Power Ratio) is the ratio of
RF Communication and Signals Experiments In accordance with the definition of ACPR (Figure 7-2), we know that ACPR =10 log (Padj /Pca
GRF-1300A User Manual and Teaching Materials 3. Set up the GSP-730 as follows: • Center frequency:880MHz • Span: 10MHz • Reference leve
RF Communication and Signals Experiments Set the bandwidth of the main channel to 2MHz. Step3 F2 Set the main channel space to 5MHz.
GRF-1300A User Manual and Teaching Materials 1MHz frequency deviation results 2MHz frequency deviation results Table 7-1. ACPR measureme
RF Communication and Signals Experiments 1MHz frequency deviation results 2MHz frequency deviation results Table 7-2. OCBW measur
Introduction to the GRF-1300A functions. This allows students to see in detail how the theory relates to th
GRF-1300A User Manual and Teaching Materials Experiment 8: Measurement of communication products Relevant information The computer mouse ha
RF Communication and Signals Experiments Experiment principles In this experiment we will use a 2.4G wireless mouse. It uses the so-ca
GRF-1300A User Manual and Teaching Materials 4. A connection diagram is shown below. 5. A blue tooth device or wireless network card
RF Communication and Signals Experiments Experiment 9: Production Line Applications Relevant information A spectrum analyzer can be u
GRF-1300A User Manual and Teaching Materials Set the amplitude and frequency of each point. Use the arrow keys to move the cursor to each
RF Communication and Signals Experiments Limit line Commands meas:lmtline:on Turns the limit lines on. Parameters: 0(low limit lin
GRF-1300A User Manual and Teaching Materials Step5 F3 Step6 F1 F2 Below the display, you can set the magnitude and frequency of each point
RF Communication and Signals Experiments 10MHz frequency deviation test results. 95
GRF-1300A User Manual and Teaching Materials Experiment 10: Mixer Relevant information In experiment 5 and 6 we introduced how the signal i
RF Communication and Signals Experiments modulated signal constant, only to increase (up-conversion) odecrease (down conversion) the c
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