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All Journal Jurnal Teknik Elektro dan Komputer TRIAC Jambura Journal of Electrical and Electronics Engineering Signal and Image Processing Letters
MS, Achmad Ubaidillah
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Sistem Informasi Pencatatan SK Dosen Prodi Teknik Elektro Universitas Trunojoyo Madura rahmanda, syukur; MS, Achmad Ubaidillah; Sukri, Hanifuddin; H, Abdul Wahib
Jurnal Teknik Elektro dan Komputer TRIAC Vol 8, No 1 (2021): Mei 2021
Publisher : Jurusan Teknik Elektro Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/triac.v8i1.9945

Abstract

Perkembangan teknologi disegala bidang sangat berpengaruh pada maju dan berkembangnya suatu organisasi. Maju disini bisa berarti adalah perubahan paradigma dalam masalah efisien dan efektifitas waktu dan tenaga. Aktivitas yang terjadi di dalam Prodi Teknik Elektro Universitas Trunojoyo Madura terutama dalam beban kerja dosen disetiap semesternya membutuhkan waktu yang lama dan melelahkan. Maka dari itu, dosen Prodi Teknik Elektro memerlukan sistem informasi yang dapat membantu mempermudah penyajian laporan beban kerja dosen dan dapat mengunduh pencatatan SK dalam waktu yang singkat dan lebih efisien. Oleh karena itu, pembuatan sistem informasi pencatatan SK dosen ini nantinya akan dibuat berbasis website dengan membutuhkan sebuah PC serta menggunakan bahasa pemograman XAMPP, MySQL, HTML, CSS dan PHP.
Design of Rectangular Microstrip Antenna Using Inset Feed and DGS Methods for Digital Television at 598 MHz Frequency Hardiwansyah, Muttaqin; Purnamasari, Dian Neipa; Ms, Achmad Ubaidillah; Haryanto, Haryanto; Ulum, Miftachul
Signal and Image Processing Letters Vol 7, No 1 (2025)
Publisher : Association for Scientific Computing Electrical and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/simple.v7i1.102

Abstract

The development of a microstrip antenna for digital TV applications at the center frequency of 598 MHz has been carried out to meet the needs for optimal signal reception in urban areas such as Surabaya. In this research, a microstrip antenna is designed, simulated, and fabricated to verify its performance. The simulation results show that the antenna has a return loss of -12.27 dB, VSWR 1.639, bandwidth 359 MHz, gain 2.26 dBi, and an omnidirectional radiation pattern. After the fabrication process, antenna performance measurements show a return loss of -25.78 dB, VSWR 1.849, and bandwidth 154 MHz. Discrepancies between simulation and fabrication results are mainly due to manufacturing tolerances and material variations. Nevertheless, the results obtained show that the developed microstrip antenna has good performance and is suitable for digital TV applications at the targeted frequency, with the ability to receive signals omnidirectionally which is very important in dense urban environments.
Evaluation of Latency, Range, and Path Redundancy in Multihop Communication Using the NRF24L01 Module Purnamasari, Dian Neipa; Saputro, Adi Kurniawan; Barqi, Moch. Roziqul; Ma’rifah, Puteri Nurul; Ms, Achmad Ubaidillah; Hardiwansyah, Muttaqin
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 1 (2026): Januari - Juni 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i1.33470

Abstract

This research focuses on evaluating the performance of NRF24L01 module-based multihop wireless communication networks, specifically on latency, range, and path redundancy resilience. The network was designed with 8 nodes (1 sender and 7 router/receiver nodes) for data transmission. Response time (latency) is explicitly measured using synchronized timestamps from a Real Time Clock (RTC) DS3231 across all nodes. This performance-oriented study involved three main scenarios: 1) Line of Sight (LoS) to measure maximum range and baseline latency, 2) Non-Line of Sight (NLoS) to test the impact of physical obstacles, and 3) Automatic Routing and Path Redundancy testing to evaluate the failover capability. In the LoS scenario, effective communication reached 310 meters with an average latency of 1,046 ms. Conversely, in the NLoS scenario, communication remained effective up to 33 meters with an average latency of 763 ms. The path redundancy analysis demonstrates that the system successfully performed a failover when an intermediate node was shut down, though it caused a net latency increase of more than 800 ms on the alternative path. These results confirm that NRF24L01 can provide reliable multihop connectivity suitable for long-distance monitoring applications.
Co-Authors Adi Kurniawan Saputro Barqi, Moch. Roziqul Dian Neipa Purnamasari H, Abdul Wahib Hardiwansyah, Muttaqin Haryanto Haryanto Ma’rifah, Puteri Nurul Miftachul Ulum, Miftachul rahmanda, syukur Sukri, Hanifuddin