Synthsizer Audio Generator Analysist (Saga) DVOR Maru 220 Menggunakan Arduino Uno

Abstract

This study aims to design and implement a portable device based on the Arduino Uno ATmega328P microcontroller
that is able to read and analyze the output signal from the DVOR Maru 220 Modulation Signal Generator (MSG)
MODULE. This tool was developed to detect three main types of frequency signals, namely 30 Hz (reference signal),
720 Hz (blending signal), and 1020 Hz (ident signal), which play an important role in DVOR navigation systems. Data
acquisition is done via an Arduino analog input and displayed in real-time via a desktop-based PyQt5 interface. The
research method used is Research and Development (R&D) with the ADDIE (Analysis, Design, Development,
Implementation, and Evaluation) model approach. The test results showed that the SAGA system was able to display
frequency data with a fairly good level of accuracy, with the lowest deviation of 0.3973% at the frequency of 720 Hz.
This system was considered effective in assisting technicians in the process of diagnosis, maintenance, and calibration
of MSG Modules without having to use conventional equipment that was not portable. This innovation provides an
efficient and economical solution in supporting DVOR-based navigation device maintenance activities.