Design Indoor FM Communication Based on SDR and GNU Radio Using Validated Spectrum Analyzer
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Abstract
Abstract The number of software in the telecommunications world allows us to make an FM simulation, one of the software is GNU Radio. This paper will explain FM communication simulations that use a guide between GNU Radio and RTL-SDR and are validated using a spectrum analyzer. The simulation is carried out twice, the first simulation tests the SDR transmit which will be tested in the simulation to be carried out in the GNU Radio worksheet. The second simulation tests an SDR receiver that uses a frequency of 100.3 MHz. Validation is done at a distance of ± 1 meter using a spectrum analyzer connected to the antenna and will receive frequencies of 60,65,70,75 and 80 MHz which will be compared with GNU Radio readings. The parameters to be used are signal to noise ratio (SNR) and beam power. From the results of the first simulation study using GNU Radio worksheets obtained the value of the emission power of -12.4 dBm and the second simulation obtained a value of -12.87. While the validation results show that the value obtained is the accuracy of 99.5% on the measurement of the transmitter’s power value while the signal to noise ratio of 99.78%.
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