USER'S INSTRUCTIONS: The project work you are about to view is on "desgn and construction of an rf signal detector" Please, sit back and study the below research material carefully. This project topic "desgn and construction of an rf signal detector" have complete 5(five) Chapters. The complete Project Material/writeup include: Abstract + Introduction + etc + Literature Review + methodology + etc + Conclusion + Recommendation + References/Bibliography.Our aim of providing this "desgn and construction of an rf signal detector" project research material is to reduce the stress of moving from one school library to another all in the name of searching for "desgn and construction of an rf signal detector" research materials. We are not encouraging any form of plagiarism. This service is legal because, all institutions permit their students to read previous projects, books, articles or papers while developing their own works.
TITLE PAGE
DESGN AND CONSTRUCTION OF AN RF SIGNAL DETECTOR
BY
---
EE/H2013/01430
DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING
SCHOOL OF ENGINEERING
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "desgn and construction of an rf signal detector" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on Electrical and Electronics Engineering has been approved.
By
Engr. --- Engr. ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
Engr. ---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
PROJECT DESCRIPTION: This work “desgn and construction of an rf signal detector” research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of “desgn and construction of an rf signal detector” visible for everyone, then the complete material on “desgn and construction of an rf signal detector” is to be ordered for. Happy viewing!!!
This work is an RF signal detector circuit which can be used to trace the presence of RF signals and electromagnetic noise in your residential area, office or shop. It can be a useful tool while testing or designing RF circuits. It can also be used to detect electrical noise in your premises.
Electromagnetic noises can be produced by sparking in electrical installations or other sources. To detect the presence of RF signal or noise, you need a wide-band receiver that can capture these signals, this device is used.
TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
1.2 AIM OF THE PROJECT
1.3 OBJECTIVE OF THE PROJECT
1.4 SIGNIFICANCE OF THE PROJECT
1.5 PURPOSE OF THE PROJECT
1.6 APPLICATION OF THE PROJECT
1.7 ADVANTAGES OF THE PROJECT
1.8 PROBLEM/LIMITATION OF THE PROJECT
1.9 PROJECT ORGANISATION
CHAPTER TWO
2.0 LITERATURE REVIEW
2.1 REVIEW OF RELATED STUDIES
2.2 REVIEW OF RELATED TERMS
2.3 REVIEW OF RF SIGNALS
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 SYSTEM CIRCUIT DIAGRAM
3.2 SYSTEM OPERATION
3.3 CIRCUIT DESCRIPTION
3.4 SYSTEM CIRCUIT DIAGRAM
3.5 CIRCUIT OPERATION
3.6 IMPORTANCE AND FUNCTION OF THE MAJOR COMPONENTS USED IN THIS CIRCUIT
3.7 POWER SUPPLY UNIT
CHAPTER FOUR
RESULT ANALYSIS
4.0 CONSTRUCTION PROCEDURE AND TESTING
4.1 CASING AND PACKAGING
4.2 ASSEMBLING OF SECTIONS
4.3 TESTING
4.4.1 PRE-IMPLEMENTATION TESTING
4.4.2 POST-IMPLEMENTATION TESTING
4.5 RESULT
4.6 COST ANALYSIS
4.7 PROBLEM ENCOUNTERED
CHAPTER FIVE
5.1 CONCLUSION
5.2 RECOMMENDATION
5.3 REFERENCES
Fig. 1: Circuit of RF signal detector
Circuit and working
Fig. 1 shows the circuit of RF signal detector. It consists of a telescopic antenna, input protection resistor (R1), two diodes (D1 and D2), selector switch (S1), pre-amplifier with a low-noise and high-gain transistor (T1), and audio amplifier IC LM386 (IC1).
Switch S1 is used to select between high and low sensitivities of the circuit. When high sensitivity is selected, gain of the transistor stage with T1 is added to gain of IC LM386. When low sensitivity is selected, gain of only IC LM386 is used, which is around 20. In order to keep the circuit simple and compact, no volume control is included.
When there is a strong electromagnetic signal near the antenna, e.g., from a mobile phone, telephone or electrical motor, you can hear audible sound from the speaker (LS1). As you bring this detector closer to the RF or noise-transmitting source, the sound from the speaker becomes louder. Thus you can trace the exact location of the source. You can use an antenna of appropriate shape and length to increase the range of reception and sensitivity.
Construction and testing
Normally, the circuit does not need any adjustment. But it is preferable to keep the collector-emitter voltage of T1 around half the power supply voltage and the collector current at least 1 mA. The preferred power supply range is 9-15 V DC. If the circuit produces motor boating noise with AC mains adapter, use a battery instead to reduce the noise. The circuit works well with a single 9V PP3 or 6F22 type battery.
Fig. 2: A single-side PCB for RF signal detector 
Fig. 3: Component layout for the PCB
Download PCB component PDFs: click here
Download component layout PDFs: click here
A single-side PCB for the RF signal detector is shown in Fig. 2 and its component layout in Fig. 3. Assemble the circuit on a PCB to minimize time and assembly errors. Carefully assemble the components and double-check for any overlooked error. Use IC base for IC LM386. Before inserting the IC, check the supply voltage.
To test the circuit for proper functioning, using test points TP0 and TP1 on the PCB, first check whether power supply to the circuit is correct. Place some RF source near the antenna and through oscilloscope verify whether the signals are being received at TP2.
You can use your mobile phone as the RF source. Dial any number and place the phone near the antenna. Using switch S1 select high sensitivity for the circuit and check the amplified signal at TP3. The final output can be checked at TP4. Make sure that the RF source is continuously radiating while you check all the test points.
CHAPTER TWO: The complete chapter two of “desgn and construction of an rf signal detector” is available. Order full work to download. Chapter two of “desgn and construction of an rf signal detector” consists of the literature review. In this chapter all the related work on “desgn and construction of an rf signal detector” was reviewed.
CHAPTER THREE: The complete chapter three of “desgn and construction of an rf signal detector” is available. Order full work to download. Chapter three of “desgn and construction of an rf signal detector” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of “desgn and construction of an rf signal detector” is available. Order full work to download. Chapter four of “desgn and construction of an rf signal detector” consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a “desgn and construction of an rf signal detector” is available. Order full work to download. Chapter five of “desgn and construction of an rf signal detector” consist of conclusion, recommendation and references.
To "DOWNLOAD" the complete material on this particular topic above click "HERE"
Do you want our Bank Accounts? please click HERE
To view other related topics click HERE
To "SUMMIT" new topic(s), develop a new topic OR you did not see your topic on our site but want to confirm the availiability of your topic click HERE
Do you want us to research your new topic? if yes, click "HERE"
Do you have any question concerning our post/services? click HERE for answers to your questions
You can also visit our facebook Page at fb.me/hyclas to view our related construction (or design) picture.
For more information contact us through Any of the following means:
Mobile No :+2348146561114 or +2347015391124 [Mr. Innocent]
Email address :engr4project@gmail.com
Watsapp No :+2348146561114
To View Our Design Pix: You can also visit our facebook Page at fb.me/hyclas for our design photos/pics.
COUNTRIES THAT FOUND OUR SERVICES USEFUL
Australia, Botswana, Canada, Europe, Ghana, Ireland, India, Kenya, Liberia, Malaysia, Namibia, New Zealand, Nigeria, Pakistan, Philippines, Singapore, Sierra Leone, South Africa, Uganda, United States, United Kindom, Zambia, Zimbabwe, etc
Support: +234 8146561114 or +2347015391124
Watsapp No :+2348146561114
Email Address :engr4project@gmail.com
IF YOU ARE SATISFIED WITH OUR SERVICES, PLEASE DO NOT FORGET TO INVITE YOUR FRIENDS AND COURSEMATES TO OUR PAGE.