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All Journal ELKHA : Jurnal Teknik Elektro Teknik dan Ilmu Komputer Sinergi ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING JTERA (Jurnal Teknologi Rekayasa) Techne : Jurnal Ilmiah Elektroteknika Jurnal Telematika Jurnal Teknik Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Teknologi Terapan SULUH: Jurnal Abdimas Jurnal Pengabdian Masyarakat Teknik Abdimasku : Jurnal Pengabdian Masyarakat Reswara: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Computing, Engineering, and Design Jurnal Industri Pariwisata JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Enrichment: Journal of Multidisciplinary Research and Development Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering)
Syah Alam
Universitas 17 Agustus 1945 Jakarta
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Realisasi dan Pengujian Antena Mikrostrip Array 4 Elemen dengan Polarisasi Melingkar untuk Aplikasi 4G/LTE WIYANTO, EDDY; ALAM, SYAH; HARSONO, BUDI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 6, No 2: Published May 2018
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v6i2.244

Abstract

ABSTRAKPenelitian ini mengusulkan desain antena mikrostrip array empat elemen dengan polarisasi melingkar pada frekuensi kerja 2300 MHz untuk aplikasi 4G/LTE. Antena telah dirancang dan dipabrikasi menggunakan substrat jenis FR-4 Epoxy dengan nilai konstanta dielektrik (Ɛr) = 4.3, ketebalan substrat (h) = 1.6 mm dan loss tangen (tan δ) = 0.0265 dengan pencatu microstrip line. Polarisasi melingkar dengan axial ratio ≤ 3 dB dihasilkan dengan menggunakan metode truncated corner sedangkan untuk meningkatkan nilai gain digunakan metode array empat elemen. Dari hasil proses pengukuran diperoleh nilai koefisien refleksi sebesar -16.52 dB, VSWR sebesar 1.37 pada frekuensi kerja 2300 MHz dengan bandwidth yang diperoleh dari hasil pengukuran adalah 400 MHz (2050 MHz - 2450 MHz). Metode truncated corner berhasil menghasilkan polarisasi melingkar dengan nilai axial ratio 1.745 dB dan berhasil menghasilkan nilai gain sebesar 9.04 dB pada frekuensi kerja 2300 MHz untuk aplikasi LTE.Kata kunci: Antena, mikrostrip, koefisien refleksi, array, truncated corner ABSTRACTThis research proposed a four-element microstrip array antenna design withcircular polarization at a working frequency of 2300 MHz for 4G / LTEapplications. The antenna has been designed and fabricated using a FR-4 Epoxy substrate with a dielectric constant value (Ɛr) = 4.3, substrate thickness (h) = 1.6 mm and tangent loss (tan δ) = 0.0265 with microstrip line feeding. The circular polarization with axial ratio ≤3 dB was generated using the truncated corner method while for increasing the gain value used the four element array method. From the result of the measurement process, the reflection coefficient value is obtained -16.52 dB, VSWR of 1.37 at 2300 MHz working frequency with bandwidth obtained from the measurement result is 400 MHz (2050 MHz - 2450 MHz). The truncated corner method succeeded in generating a circular polarization with the axial ratio of 1.745 dB and succeeded to obtain the gain of 9.04 dB at work frequency of 2300 MHz for LTE application. Keywords: Antena, microstrip, reflection coefficient, array, truncated corner
Analisis Interferensi White Space Device terhadap Sistem Radio Navigasi Penerbangan pada Frekuensi 960 MHz SARI, LYDIA; ALAM, SYAH; SURJATI, INDRA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 7, No 2: Published May 2019
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v7i2.351

Abstract

ABSTRAKPemerintah Indonesia mengalokasikan spektrum frekuensi 960-1164 MHZ untuk sistem komunikasi bergerak maupun untuk radio navigasi penerbangan. Penggunaan White Space Device (WSD) merupakan solusi keterbatasan spektrum, karena mampu mengidentifikasi dan memanfaatkan frekuensi yang tidak terpakai. Penelitian ini menyelidiki potensi interferensi yang terjadi pada koeksistensi sistem radio navigasi penerbangan serta perangkat WSD di pita 960 MHz. Penelitian menggunakan pendekatan matematis Minimum Coupling Loss (MCL) serta simulasi dengan Spectrum Engineering Advanced Monte Carlo Analysis Tool (SEAMCAT). Hasil penelitian menunjukkan bahwa level interferensi yang masih diperbolehkan berada di kisaran -81,589 dBm. Level ini tercapai dengan penggunaan jarak proteksi antar sistem sejauh 36 km. Penurunan daya pemancar WSD atau peningkatan gain RSBN sebesar 1 dBm dapat memperkecil jarak proteksi menjadi 30 km untuk mencapai probabilitas interferensi berturutturut 3,55% dan 3,6%.Kata kunci: white space devices, interferensi, radio navigasi penerbangan ABSTRACTThe Indonesian Government allocates the 960-1164 MHz spectrum for mobile communications and aeronautical radio navigation services. Cognitive radio is a technology which will enable the use of a limited spectrum optimally. Devices implemented with cognitive radio capability is referred as White Space Device (WSD) as they can identify and utilize idle channels. This paper investigates the interference potential between aeronautical radio navigation services and WSD as they co-exist in the 960 MHz spectrum using Minimum Coupling Loss (MCL) formulae and simulations using Spectrum Engineering Advanced Monte Carlo Analysis Tool (SEAMCAT). Results show that the permissible interference level is -81,589 dBm which is achievable if the two systems are separated by 36 km. Decreasing the WSD power level or increasing the RSBN gain by 1 dBm can decrease the protection distance between the two systems to 30 km to achieve an interference probability of 3,55% and 3,6%, respectively.Keywords: white space devices, interference, aeronautical radio navigation
Analisis kelayakan performansi optical distribution point (ODP) pada optical network terminal (ONT) berdasarkan splitter 1:8 Wayoi, Cahya Muzaki; Alam, Syah; Surjati, Indra
JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Vol. 4 No. 3: September 2024
Publisher : Jurusan Teknik Elektro, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/jitel.v4.i3.2024.209-220

Abstract

Teknologi yang semakin canggih menyebabkan kebutuhan manusia akan kecepatan data sangat tinggi untuk memberikan keseimbangan terhadap teknologi. Upaya untuk menunjang teknologi tersebut menggunakan teknologi Fiber to The Home (FTTH) sebagai transmisinya. Lokasi wilayah yang menggunakan teknologi FTTH tersebut berada di daerah Padalarang, Bandung Barat. Penelitian ini menganalisa serat optik dengan penggunaan splitter 1:8 melalui metode perhitungan Power Link Budget, pengukuran alat menggunakan Optical Power Meter (OPM), serta digunakan aplikasi simulasi Optisystem dan Google Earth. Hasil penelitian didapatkan receive sensitivity Power Link Budget sebesar -16,78 dBm untuk ODP dan -18,79 dBm untuk ONT. Terdapat selisih sebesar 9,18% antara hasil pengukuran dan perhitungan menggunakan metode Power Link Budget pada ODP, sebesar 7,5% antara pengukuran dan perhitungan menggunakan metode Power Link Budget pada ONT, sebesar 3,78% antara pengukuran dengan hasil simulasi Optisystem pada ODP, sebesar 1,97% antara pengukuran menggunakan OPM dengan hasil simulasi Optisystem pada ONT. Berdasarkan pemantauan kelayakan performansi jaringan yang dilakukan selama 2 minggu, didapatkan nilai rata-rata receive sensitivity untuk ODP sebesar -18,32 dBm. Pada ONT dilakukan pengukuran pada port 4,6, dan 8 di perangkat ODP menghasilkan nilai receive sensivity sebesar -19,35 dBm, -20,26 dBm, dan -20,95 dBm. Hal ini menunjukkan bahwa nilai telah memenuhi standar ITU-T G.984, yakni Pr lebih dari -27 dBm. Performansi jaringan Fiber to The Home yang dilakukan di daerah Padalarang, Bandung Barat sesuai PT. Telkom berdasarkan pengukuran yang dilakukan.
ANALISIS IMPLEMENTASI ECOLOGICAL GREEN MARKETING DI WORK COFFEE INDONESIA Shalsabilla, Meylinda Rossiana; Alam, Syah; Candella, Yokkeu Hanna; Andari, Rini
Jurnal Industri Parawisata Vol 5 No 2 (2023): Jurnal Industri Pariwisata JANUARY 2023
Publisher : Universitas Sahid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36441/pariwisata.v5i2.1427

Abstract

Marketing tidak hanya diperlakukan sebagai penjahat utama karena peran nya dalam merangsang permintaan dan konsumsi yang tidak berkelanjutan, tetapi juga sebagai penyelamat lingkungan yang potensial melalui penerapan mekanisme pasar yang mengatasi masalah lingkungan yang dikenal sebagai “Green Marketing”. Work Coffee Indonesia adalah sebuah Coffee shop yang sudah terkenal di Kota Bandung dan merupakan salah satu pelopor Coffee shop yang melaksanakan Green Marketing. Untuk itu peneliti ingin mengetahui lebih lanjut mengenai bagaimana implementasi green marketing yang dilaksanakan pada Work Coffee Indonesia di Kota Bandung. Dengan menggunakan metode penelitian kualitatif dengan pendekatan wawancara kepada pengelola dari Work Coffee Indonesia. Hingga akhirnya didapati bahwa Work Coffee Indonesia menerapkan konsep green marketing sejak pertama kali berdiri. Dengan slogan “Less Waste, More Coffee” serta ”Zero Plastic” yang diimplementasikan dengan mengganti semua alat makan dan minum yang terbuat dari plastik sekali pakai, menajdi bahan yang bisa digunakan kembali. Selain itu, mereka juga mengolah sampah organik menjadi pupuk. Hal ini membuktikan bahwa mereka serius terhadap penerapan green marketing dan tentunya peduli terhadap lingkungan.
PELATIHAN PEMBUATAN ALAT DETEKSI DINI BENCANA BANJIR UNTUK DI WILAYAH JATIBENING, BEKASI Alam, Syah; Surjati, Indra; Sari, Lydia; Ningsih, Yuli Kurnia; Astuti, Pudji; Saragi, Simon Jansen; Ilham, Muhammad
Reswara: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 1 (2024)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v5i1.3405

Abstract

Banjir adalah bencana alam yang sering terjadi di wilayah Jakarta dan sekitarnya. Salah satu permasalahan yang menyebabkan bencana banjir adalah adanya sumbatan pada saluran air yang menyebabkan air meluap dan menimbulkan genangan. Kegiatan pengabdian kepada masyarakat ini memberikan solusi dengan memberilkan kegiatan pelatihan pembuatan deteksi dini bencana banjir menggunakan deteksi ketinggian air yang diletakkan pada saluran pembuangan air di wilayah Perumahan Jatibening, Bekasi yang mengalami bencana banji diawal tahun 2021. Alat yang dirancang menerapkan teknologi tepat guna dengan memanfaatkan pelampung water level control yang dikoneksikan dengan power supply dan relay sebagai sakelar otomatis. Informasi ketinggian air direpresentasikan menggunakan indicator lampu LED dan jika air sudah meluap maka sirine akan berbunyi untuk memberikan informasi kepada warga sekitar agar dapat segera mengevakuasi barang-barang berharga dan lainnya. Hasil dari kegiatan ini didapatkan bahwa pemahaman masyarakat terhadap deteksi bencana banjir meningkat menjadi 98% dan alat deteksi ketinggian air berhasil diterapkan dan ditempatkan di saluran pembuangan air di wilayah perumahan jatibening, bekasi.
Training for Designing Automatic Temperature Detector Based on Arduino Uno using Tinkercad to Improve Teacher Competence at MTS Tarbiyatul Falah Alam, Syah; Surjati, Indra; Sari, Lydia; Iznih; Alga Maulana, Gusti
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 8 No. 2 (2025): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/abdimas.v8i2.6454

Abstract

MTS Tarbiyatul Falah is a junior high school educational institution that organizes a madrasah-level education program that follows the curriculum set by the Ministry of Education and Culture of the Republic of Indonesia where one of its extracurricular activities is the introduction of basic electronics to students. For that, the urgency of this community service activity is to provide training to teachers at MTS Tarbiyatul Falah to be able to design and realize a temperature control circuit based on Arduino Uno. The purpose of this community service activity is to provide training in the use of tinkercad for basic Arduino programming in order to improve teachers' knowledge in providing materials, especially in the field of electronics. From this activity, the ability and understanding of the training participants increased from 56 to 90 based on the pre-test and post-test. In addition, the satisfaction of the training participants was also very high as shown based on the results of the questionnaire where the average satisfaction was 95%. Therefore, this activity is very useful especially for improving the ability of MTS teachers in designing electronic circuits using Arduino Uno.
User Capacity Optimization Using The Mobility Load Balancing Algorithm For Downlink Data Long Term Evolution Miranti, Miranti; Sari, Lydia; Doris, Muhamad; Alam, Syah; Surjati, Indra
Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Vol 12 No 1 (2025): Jurnal Ecotipe, April 2025
Publisher : Jurusan Teknik Elektro, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jurnalecotipe.v12i1.4532

Abstract

The increasing number of users in a Long Term Evolution (LTE) network often decreases network performance. A cell that has high traffic experiences a decline in network performance due to unavailable resources for certain users, while in cells with low traffic, the use of resources in these cells is inefficient. The mobility load balancing (MLB) algorithm balances the intercellular loads in an LTE network and improves the performance by distributing part of the load in a high traffic cell to neighboring cells that have low loads. An activated MLB will detect the network load and calculate the available resource for each cell to determine which cells are overloaded. The MLB will consider the candidate cell where the load could be distributed. MLB simulation results show that the application of MLB has succeeded in reducing the percentage of unsatisfied users by 9.4% and increasing throughput system to 5.617 Mbps.
Design of Solar Electric Bicycle Based on Pulse Width Modulation on Throttle as DC Motor Speed Regulator Fadly, Singgi; Irianto, Chairul Gagarin; Alam, Syah
Enrichment: Journal of Multidisciplinary Research and Development Vol. 2 No. 6 (2024): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v2i6.147

Abstract

Electric bicycles are designed to use renewable energy to support the government's efforts to reduce carbon emission consumption. Problems in every region or city regarding fueled vehicles certainly increase air pollution. Generally, electric bicycles are designed to be a solution and are used in daily life to carry out daily activities by requiring a bicycle gas throttle control that can assist the driver or person in controlling the speed of the electric bicycle. In this study, designing a solar electric bicycle as environmentally friendly energy based on PWM signals to determine the duty cycle value or duty cycle with an optimized PWM value can affect the speed system (km / h) in Revolutions Per Minute (RPM) to determine the performance of the DC motor. The electric bicycle uses 30Wp solar power, two 12V 7.5 Ah batteries assembled in series, and a 24V 250W DC brushless motor. Based on the design results with a total weight of 37kg electric bicycle plus the weight of 55kg, 65kg, 75kg, and 85kg driver variations, the total controller power value is 163.44 watts. The results of duty cycle testing (duty cycle) were 25%, 50%, 75%, and 98%, with 249.9 as the maximum value of PWM and 9.8 Vout generated against the maximum speed of the electric bicycle of 2648 RPM or the equivalent of an electric bicycle speed of 18-28 km/hour. In this case, the electric bicycle is in a condition suitable for use to carry out daily activities by utilizing clean, cheap and appropriate energy
Interference Analysis Between 5G System and Fixed Satellite Service in the 28 GHz Band Ghifari, Rafli; Sari, Lydia; Mardian W, R. Deiny; Alam, Syah; Surjati, Indra
ELKHA : Jurnal Teknik Elektro Vol. 15 No.2 October 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v15i2.51040

Abstract

One of the most favorable frequency bands for 5G technology is the 27.5 - 28.5 GHz band which has been used by Fixed Satellite System (FSS) service in the uplink direction. This potentially causes interference between the two systems. This study aims to analyze the interference that occurs between satellite earth stations and 5G access points (AP), and between 5G AP and satellite sky stations. The analysis is carried out based on simulations using the Spectrum Engineering Advanced Monte Carlo Analysis Tool (SEAMCAT) software, with two scenarios. The first scenario is to analyze interference between the 5G AP and the FSS sky station. With the C/I interference criterion of 40.2 dB, the simulation results show that the 5G AP will not interfere with the FSS sky station. The second scenario is the interference simulation between FSS earth station and 5G AP. The simulation is carried out by varying the distance between the earth station and the 5G AP, the height of the earth station, and the height of the 5G AP. Based on the simulations, it is shown that the FSS earth station can interfere with 5G AP with a probability of up to 60%, so it is necessary to adjust the distance between systems and the height of the antenna to minimize the interference. The shortest distance needed to minimize interference is 36 km with an earth station height of 5 meters.
Methods to Increase Microalgae Carbohydrates for Bioethanol Production Ali, Esam Abu Baker; Idris, Muhammad; Irianto, Irianto; Zulkarnain, Muhammad; Alam, Syah; Amanah, Ayu; Firman, La Ode Muhammad; Mustika, Donny
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 4 No. 2 (2022): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v4i2.301

Abstract

Compared to traditional lignocellulose biomass, microalgae contain little or no lignin. Traditionally, bioethanol production from microalgae undergoes three major steps: (i) pretreatment; (ii) polysaccharides hydrolysis into simple sugars; and (iii) sugar conversion into bioethanol by fermentation. Microalgae convert sunlight, water, and CO2 into algal biomass. Diatoms, green algae, bluegreen algae, and golden algae are four main classes of microalgae, whereas the two main species of algae are filamentous and phytoplankton algae. Microalgae convert solar energy efficiently, producing an enormous number of various metabolites. Many studies have been conducted to convert microalgae into various biofuels, such as biodiesel, bioethanol, biohydrogen, and biogas. However, compared to biodiesel, bioethanol production from algae throughfermentation consumes less energy with its simplified process. Considering these advantages, a number of potential applications for microalgae have been proposed and developed. Despite the promising of bioethanol from microalgae, it still has a number of obstacles, such as the low fermentable carbohydrate content of microalgae. This article intends to discuss the methods to increase microalgae carbohydrates thoroughly. To solve this problem, several nutritional starvations/limitations, like nitrogen and phosphorous starvation, are currently being considered in this paper.
Co-Authors A Majid, Huda Alga Maulana, Gusti Ali, Esam Abu Baker Amanah, Ayu Anindito, Atria Budi Harsono Candella, Yokkeu Hanna Chairul Gagarin Irianto Dian Widi Astuti, Budi Irawan Prima Putra, Dian Widi Astuti, Doris, Muhamad Eddy Wiyanto FADLY, SINGGI Firman, La Ode Muhammad Gagarin Irianto, Chairul Ghifari, Rafli Gunawan Tjahjadi Hilyawan, Mohamad Reynaldy Indra Surjati Irianto Irianto Irma Saraswati Iznih Iznih, Iznih Kuswanto, Hery Lydia Sari Mardian W, R. Deiny marlina, Pipit Dewi Miranti Miranti Muhammad Idris Muhammad Ilham Muhammad Zulkarnain Muslim Muslim Mustika, Donny Pratama, Ikbal PUDJI ASTUTI Putranto, Agam Reynaldhy Hilyawan, Muhammad Rini Andari, Rini RIYANDIKA, RIZKY Rizka, Nadia Media Sanaz, Zikra Aulia Saragi, Simon Jansen Sari, Fitri Kurnia Setiawan, Tata Shalsabilla, Meylinda Rossiana Sri Hartanto Supriyanto Supriyanto swasono adi, Tri TANUWIJAYA, JUSTIN Teguh Firmansyah Toto Supriyanto Umaisaroh Umaisaroh Vaswani, Rakesh Wayoi, Cahya Muzaki Wildan, Muh. Yuli Kurnia Ningsih Yuli Kurnia Ningsih, Yuli