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Leonardus Sandy Ade Putra
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telectrical@untan.ac.id
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Jl. Prof. Dr. Hadari Nawawi, Pontianak 78124, Indonesia
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INDONESIA
Telecommunications, Computers, and Electricals Engineering Journal
Published by Universitas Tanjungpura
ISSN : -     EISSN : 30260744     DOI : https://dx.doi.org/10.26418/telectrical.v1i2
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Signal Processing; Communication Networks; Artificial Intelligence, Computer Technology; Power Systems; Image Processing
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 5 Documents
 1 
Search results for , issue "Vol 3, No 1: June 2025" : 5 Documents clear
IMPLEMENTATION OF LoRa SIGNAL DISTRIBUTION IN TRAFFIC LIGHTS Ruslan, Ruslan
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.93982

Abstract

The development of wireless communication technology based on the Internet of Things (IoT) encourages the modernization of various urban infrastructures, including traffic light systems. This research discusses the implementation of Long Range (LoRa) technology as a wireless communication medium to control traffic lights in the four intersection area. LoRa was chosen because it has a wide transmission range, low power consumption, and ease of integration in smart city systems. The designed system consists of one ESP32 microcontroller-based transmitter and four receivers using NodeMCU ESP8266, which are connected through LoRa SX1278 module with frequency 433 MHz. Tests were conducted under Line of Sight (LOS) conditions with a distance variation of 25 meters to 125 meters. The performance parameters measured include Received Signal Strength Indicator (RSSI), Signal to Noise Ratio (SNR), and delay time. The test results show that as the distance increases, the RSSI and SNR values tend to decrease, but the system is still able to run three traffic light operation modes, namely normal, flash, and all-red operations, in real-time without significant interference up to a distance of 125 meters. This implementation proves that LoRa can be an effective and efficient solution for wireless communication-based traffic light systems, with the advantages of flexibility, low installation costs, and easy integration into modern traffic management systems.
DESIGN AND IMPLEMENTATION OF AN 11-ELEMENT YAGI ANTENNA AS AN INTERNET SIGNAL BOOSTER IN MENYABO VILLAGE Setiawan, Geri; Kusumawardhani, Eka; Suryadi, Dedy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.92536

Abstract

The Yagi antenna is a type of directional antenna designed to enhance signal reception and transmission in a specific direction. In this study, the MMANA-GAL software was utilized to design and simulate the antenna with a high level of accuracy. The aim of this research is to design and implement an 11-element Yagi antenna capable of capturing signals from a Base Transceiver Station (BTS) to improve weak signal quality in Menyabo Village. Antenna testing was conducted using the MMANA-GAL application for simulation, along with SpeedTest and GNetTrack (GNet-WiFi) applications for measuring signal performance. Based on the results of the design, simulation, and testing phases, it can be concluded that the designed antenna meets the desired specifications. Simulation results indicate that the 11-element Yagi antenna has an impedance of 50 Ohms, a VSWR value of 1:1.00, and a gain of 12.8 dBi. Field testing results demonstrated improved signal performance. Prior to connecting the antenna, SpeedTest results showed a ping of 61 ms, download speed of 0.40 Mbps, and upload speed of 1.70 Mbps. After connecting the antenna at a height of 10 meters, the values improved to a ping of 39 ms, download speed of 1.06 Mbps, and upload speed of 1.46 Mbps. At 12 meters, the results further improved to a ping of 38 ms, download speed of 2.67 Mbps, and upload speed of 1.58 Mbps. Regarding RSSI measurements, before connection, the signal strength was -77 dBm. After connecting the antenna, the RSSI improved to -51 dBm at 10 meters and -41 dBm at 12 meters. Based on these findings, it can be concluded that the designed 11-element Yagi antenna successfully enhances signal quality and meets the targeted specifications.
PERFORMANCE ANALYSIS OF LORA COMMUNICATION ON AIR QUALITY MONITORING QUADCOPTER Darmawan, Alif
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.93205

Abstract

In wireless communication, the quality and success of information exchange are crucial factors to consider. This study aims to analyze the performance of LoRa communication on a quadcopter designed to monitor air quality. The quality and success of information exchange on this air quality monitoring quadcopter are evaluated based on parameters such as RSSI, SNR, Packet Delivery Ratio, and Packet Loss. The research methodology involves field testing using a quadcopter equipped with a LoRa RFM95 module, ESP32 microcontroller, and air quality monitoring sensors, such as DHT22, MQ-7, MQ-131, and GP2Y1010AU0F. Data collected by the quadcopter were transmitted to a receiver station via LoRa communication. Analysis was conducted at various communication distances to understand their impact on system performance. The results indicate that the LoRa communication transmission on the air quality monitoring quadcopter successfully transmitted data from the transmitter to the receiver at distances ranging from 100 meters to 500 meters and all data collection variations showed a Packet Delivery Ratio of 100% and a Packet Loss of 0%.
SIBI INTRODUCTION USING YOLOv8 AS ANDROID-BASED LEARNING MEDIA Septiana, Septiana
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.93519

Abstract

SIBI (Indonesian Sign Language System) is a visual communication system used by the deaf and hard-of-hearing community for interaction. Learning SIBI requires interactive media to enable users to achieve precise gesture mastery. A key challenge in self-directed learning is the lack of real-time feedback to evaluate gesture accuracy, particulary in the absence of instructors or companions. To address this, integrating technology becomes essential for developing an independent and effective SIBI learning framework. This study designed a SIBI letter recognition system using the YOLOv8 model, implemented on the Android platform. The system employs a smartphone camera to detect users hand movements on real-time. Captured hand gestures are processed via the YOLOv8 object detection algorithm, with identification results displayed as bounding box and corresponding text labels in the application interface. The system was tested at three different distances, namely 0.5 meters, 1 meter, and 1.5 meters. The experimental results demonstrated high accuracy rates, achieving 98.72% at a distance of 0.5 meters, 96.15% at 1 meter, and 91.02% at 1.5 meters. These results confirm that the SIBI recognition system based on YOLOv8 is an accurate and effective educational tool, well suited to support the learning process for novice users.
STUDY OF ELECTRICAL INSTALLATION PLANNING AT RACHAEL HOTEL PONTIANAK Nurhalimah, Nurhalimah
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.96935

Abstract

Rachael Hotel Pontianak is a new hotel planned for 8 floors with a building area of 8,998.2 m2. In the early stages of development, this hotel relies heavily on electrical installations, especially lighting and air conditioning installations to support the needs of guests and provide comfort to the facilities that have been provided. This study aims to calculate the need for the number of light points, Air Conditioner capacity, cable cross-sectional area, safety current rating, total power requirements, and cost budget plan (RAB). This research uses literature study, observation and analytical descriptive methods to obtain accurate data and information. In this electrical installation planning, the need for electrical energy to serve the load must be in accordance with the General Requirements for Electrical Installation (PUIL) in 2020, SNI 6197-2020 concerning energy conversion in lighting systems, and SNI 6390-2020 concerning energy conversion of air conditioning systems in buildings. Based on the calculations and analysis that have been carried out, the total electrical load requirement is 286750 Watts with a total lamp requirement of 1577 pieces and a total air conditioning requirement of 167 pieces. From the results of this calculation it is also known that the electric current safety at SDP and MDP uses MCCB components with a panel capacity of 141109.41 VA for SDP 1, and 196243.53 VA for SDP 2, and 337352.94 VA for MDP. The total cost of all electrical installation work is IDR 3,579,439,000.00. This research is expected to provide efficient and effective electrical installation planning for Rachael Hotel, so that it can support the needs of guests and provide comfortable facilities at an optimal cost.

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