Jurnal Mosfet

Perancangan Simulator Modulasi Analog dan Digital Berbasis App Designer Matlab untuk Media Pembelajaran Sistem Telekomunikasi

Naufal Arif Ardiansyah — 2026-01-23

This paper proposes an application that was designed using MATLAB App Designer in the form of an analog and digital modulation simulator that can be used as a learning tools in telecommunications systems courses. Studying the modulation process is one of the core areas of knowledge in the telecommunications field. Modulation is the process of superimposing an information signal on a carrier signal to produce a modulated signal. Modulation can be divided into analog modulation and digital modulation. Analog modulation is modulation with an input signal in the form of an analog signal, while digital modulation has an input signal in the form of a binary or digital signal. The results of designing analog and digital modulation simulators can display simulations of AM, FM, PM, ASK, FSK, and PSK modulation in the form of information signals, carrier signals, and modulation signals, as well as BER and SNR results for digital modulation. The simulator can work properly and in accordance with the theoretical analysis of analog and digital modulation. The greater the SNR level, the more the modulation system performance increases, because the BER (Bit Error Rate) value becomes lower.

Karakteristik Parameter Prototipe Pembangkit Listrik Tenaga Sampah (PLTSa) Menggunakan Peltier

Fatmawati Azis — 2026-01-25

This research aims to design and build a power generation system that utilizes heat from waste combustion using a Peltier thermoelectric module, test the effectiveness of converting heat energy into electricity, and analyze the effect of fuel type and cooling system on device performance. The prototype system uses 12 Peltier modules. In the initial test, the configuration of 2 modules was connected in parallel and 10 modules were connected in series using leaf fuel. Then the Peltier modules were arranged in a full series configuration. The initial test only produced a voltage of 8.1 V at a temperature difference of 80°C. This voltage is considered suboptimal, the system managed to produce a voltage of up to 30 V at a temperature difference of 104°C. This high voltage is then stabilized to 15 V using a linear regulator circuit IC 7815 assisted by a transistor and a 2N3055 capacitor, to maintain output stability before entering the solar charge controller (SCC). The SCC regulates the charging of a 12 V battery, which is then used to supply power to a 500 W inverter to power a 40 W AC lamp. The system is also equipped with an ESP32 microcontroller as a control center, as well as various sensors (current, voltage, temperature) and a 16x2 LCD to display data in real-time. This research shows that the system can efficiently generate electricity from waste incineration and has the potential to be implemented as a small-scale alternative energy solution at Politeknik Bosowa.

Sistem Monitoring Kinerja Panel Surya Secara Real Time Berbasis Web

Sulfikar Sulfikar — 2026-02-03

The use of solar energy is increasingly important in addressing climate change. This study designed a real-time web-based solar panel performance monitoring system by monitoring voltage, temperature, and light intensity using Arduino Uno and ESP32 connected to Firebase. Testing was conducted for one day from 08.00-17.00 WITA. In the morning at 09.00, Panel 1 reached a maximum voltage of 22.43 V with a light intensity of 54,612.5 lux and a temperature of 38.4 ℃, while Panel 2 reached 21.67 V with an intensity of 54,612.5 lux and a temperature of 39 ℃, Entering the afternoon at 11.30, Panel 2 recorded the highest voltage of 22.82 V at an intensity of 54,612.5 lux and a temperature of 41 ℃, while Panel 1 showed a voltage of 22.6 V with the same light conditions and a temperature of 39.7 ℃. In the afternoon at 5:00 PM, both panels experienced a significant decrease, where Panel 1 dropped to 8.33 V with an intensity of 13,865 lux and a temperature of 28 ℃, while Panel 2 dropped to 8.45 V with an intensity of 10,918.3 lux and a temperature of 28 ℃. It can be concluded that high light is indeed important in producing electrical energy in solar panels but is not enough if it is not balanced with a relatively low temperature. Optimal conditions are achieved when maximum light is accompanied by a temperature that is not too high, with panel 2 showing slightly more stable performance than panel 1.

Sistem Monitoring Indeks Pencemaran Air Berbasis Internet of Things

Asharullah Asharullah — 2026-02-18

The coastal waters of Parepare City are surrounded by numerous food stalls whose wastewater and food residues are often discharged directly into the marine environment, leading to seawater pollution. Continuous monitoring is therefore required to assess water quality and support effective environmental management. This study aims to develop an Internet of Things (IoT)-based web server system for monitoring the seawater pollution index in the coastal waters of Parepare City. The research adopts a quantitative Research and Development (R&D) approach by integrating pH, turbidity, and Total Dissolved Solids (TDS) sensors to collect real-time water quality data. Sensor readings are transmitted to an IoT-based web server and processed to calculate the Water Pollution Index (WPI). Experimental results demonstrate that the system operates effectively under field conditions. Morning measurements produced a pH value of 6.9, turbidity of 2443 NTU, and TDS of 1179.1 ppm, resulting in a pollution index of 1.91, classified as lightly polluted. Afternoon measurements indicated a pollution index of 2.04 with increased turbidity, which also falls within the lightly polluted category. The proposed system provides a reliable solution for real-time monitoring of seawater quality in the coastal waters of Parepare City.

Sistem Monitoring Kualitas Air Secara Real Time pada Tambak Udang Vaname (Litopenaeus vannamei)

Muhammad Rizaldy — 2026-02-18

The continuous activity of Vanname shrimp farming can lead to environmental degradation, marked by a decline in water quality. The location of the pond must be close to a water source that has good quality and is free from pollution. This research aims to create a design tool for the water quality of shrimp ponds. The design for the water quality of Vannamei shrimp ponds forms the basis of the qualitative research method, which draws from relevant literature. Using the Visual Studio programming language. The implementation of the research was conducted at a shrimp farm location in the city of Parepare. The results of the prototype design and construction can monitor pH values ranging from the lowest to the highest, which are 7.06–8.13, and salinity values from 15710–4905 ppm. Through the application, the water quality in the pond is monitored as normal, with a pH of 7.5–8.5 and salinity of 15–25 ppt. The device that has been created is functioning well.