Stability Analysis Of Automatic Antenna Tracker With 21 dBi Antenna On Signal Quality

Abstract

Communication on Unmanned Aerial Vehicles (UAVs) is very important because it affects data transmission to the base station. However, static antennas have limitations in maintaining signal stability over long distances, so an automatic tracking mechanism is needed. This study aims to analyze the stability of an automatic antenna tracker with a 21 dBi antenna on signal quality on UAVs. The main focus of the study is to test the extent to which the automatic tracking mechanism is able to maintain stability at a distance of 20 km. The test method is carried out in a single flight by measuring the values of Received Signal Strength Indicator (RSSI), Signal-to-Noise Ratio (SNR), and Signal Quality at distances of 5 km, 10 km, and 20 km. The results of the study show that the use of an automatic antenna tracker is able to maintain signal stability optimally. At the furthest distance of 20 km with a height of 150 m, the system successfully maintained RSSI values in the range of 104 dBm to 108 dBm with a Signal Quality of 49% and an SNR of -65 dB. The consistency of these values proves the effectiveness of the system in ensuring the reliability of UAV telemetry data transmission up to a distance of 20 km without experiencing a lost link.