A Radio Device for Educational Purposes
Khanal, Prabhat (2016)
Khanal, Prabhat
Metropolia Ammattikorkeakoulu
2016
All rights reserved
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201605117292
https://urn.fi/URN:NBN:fi:amk-201605117292
Tiivistelmä
The goal of this project was to study front end of a simple radio. In this project a basic transmitter-receiver system at 735 MHz was built. Then information signal of 50 MHz was sent through transmitter and received by receiver. Information signal was analysed and studied as it goes through various components of the radio.
Before the start of this project, it was decided not to manufacture all the components which would be needed in this project by author himself because manufacturing all the components would take more time than the time allocated for final year project and need vast knowledge and research. Therefore Metropolia’s inventory was searched for the components needed for this project, and depending on those components and their working frequency range, a transmitting frequency was selected. Components which were not found, like filters and antennas, were manufactured. After all components were available, they were tested. Their various performance parameters were studied and it was examined if these components would be suitable for this project or not. After studying all parameters, components were connected together and signal of 50 MHz was sent and received through 20 cm space wirelessly. The project have achieved its goal and was successful.
If this project would be continued, bandpass filter designed in this project should be tuned more or a new bandpass filter with well-tuned frequency response should be designed. How well this transmitter-receiver system would work with real life information signals, instead of using information signal from signal generator as done in this project, should be studied.
Before the start of this project, it was decided not to manufacture all the components which would be needed in this project by author himself because manufacturing all the components would take more time than the time allocated for final year project and need vast knowledge and research. Therefore Metropolia’s inventory was searched for the components needed for this project, and depending on those components and their working frequency range, a transmitting frequency was selected. Components which were not found, like filters and antennas, were manufactured. After all components were available, they were tested. Their various performance parameters were studied and it was examined if these components would be suitable for this project or not. After studying all parameters, components were connected together and signal of 50 MHz was sent and received through 20 cm space wirelessly. The project have achieved its goal and was successful.
If this project would be continued, bandpass filter designed in this project should be tuned more or a new bandpass filter with well-tuned frequency response should be designed. How well this transmitter-receiver system would work with real life information signals, instead of using information signal from signal generator as done in this project, should be studied.