ANALISIS PROPAGASI GELOMBANG RADIO PADA
TRANSCEIVER VHF DENGAN MENAMBAH KETINGGIAN
ANTENA UNTUK MENINGKATKAN JARAK JANGKAU
PANCARAN
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Institusion
INSTITUT TEKNOLOGI DIRGANTARA ADISUTJIPTO
Author
DARMAWAN, HARI
Subject
T Technology (General)
Datestamp
2024-05-30 01:47:56
Abstract :
Radio communication (HT) is a form of modern communication that utilizes radio wave propagation as a means to carry information signals to the recipient. But in the process of transmission there are various kinds of interference due to environmental conditions that can affect the distance of the radiating and the quality of communication between Tx and Rx. Based on this, an antenna height was added to one of the transceivers (HT) by connecting it using a RG-58 coaxial cable to increase the range of the radiating and measure the damping parameters caused by the surrounding environment. The test results on transceiver 1 where when the position of the antenna is directly connected to the device and operates at a frequency of 137 MHz it can reach 720 meters and by using the Okumura-Hatta model the propagation attenuation value on the transmission line is 96.5 dB, at the height of the transceiver antenna 1 is at a height of 4 meters can reach 1680 meters with a propagation attenuation value of 108.05 dB and when the position of the antenna is at an altitude of 8 meters it can reach 2260 meters with a propagation attenuation value of 108.96 dB.
Radio communication (HT) is a form of modern communication that utilizes radio wave propagation as a means to carry information signals to the recipient. But in the process of transmission there are various kinds of interference due to environmental conditions that can affect the distance of the radiating and the quality of communication between Tx and Rx. Based on this, an antenna height was added to one of the transceivers (HT) by connecting it using a RG-58 coaxial cable to increase the range of the radiating and measure the damping parameters caused by the surrounding environment. The test results on transceiver 1 where when the position of the antenna is directly connected to the device and operates at a frequency of 137 MHz it can reach 720 meters and by using the Okumura-Hatta model the propagation attenuation value on the transmission line is 96.5 dB, at the height of the transceiver antenna 1 is at a height of 4 meters can reach 1680 meters with a propagation attenuation value of 108.05 dB and when the position of the antenna is at an altitude of 8 meters it can reach 2260 meters with a propagation attenuation value of 108.96 dB.
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