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All Journal ENGINEERING Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Science and Physics Education Journal (SPEJ) IJEBD (International Journal Of Entrepreneurship And Business Development) Techne : Jurnal Ilmiah Elektroteknika SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Elektrika JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Journal of Applied Engineering and Technological Science (JAETS) JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Community Empowerment Journal of Electrical Engineering and Computer (JEECOM) Jurnal Sosial dan Teknologi Jurnal Teknik Elektro (JTE) Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Jurnal Nasional Teknik Elektro dan Teknologi Informasi SmartComp Power Elektronik : Jurnal Orang Elektro Akiratech Emitor: Jurnal Teknik Elektro Journal of Community Empowerment SNTE
Ari Endang Jayati
Program Studi Teknik Elektro, Fakultas Teknik, Universitas Semarang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Analisa Kinerja Multiple Input Multiple Output Jaringan Sensor Nirkabel dengan Demodulasi Terdistribusi Ari Endang Jayati; Sri Heranurweni; M. Sipan
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 3 No 4: November 2014
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (180.384 KB)

Abstract

Wireless Sensor Network has some weaknesses, such as limited power, memory and communication. Sensor is supplied with a very limited power batery. Besides, Wireless Sensor Network should also consider the available bandwidth, range sensor and sensor communication range. The main objective of this study is to analyze the performance of linear demodulation named Zero Forcing (ZF) and Minimum Mean Squared Error (MMSE) in wireless sensor network using Multiple Input and Multiple Output (MIMO) system with Signal to Noise Ratio (SNR) and Bit Error Rate (BER) as the parameter to measure the performance of endurance to noise. The application of ZF and MMSE linear demodulation with MIMO configuration to Wireless Sensor Network is constantly good, the performance of ZF to reach BER 10-3 needed SNR 21 dB, while the performance of MMSE to reach BER 10-3 needed SNR 18 dB.
Pelatihan Pengukuran Menggunakan Alat Ukur Listrik bagi Siswa SMK Walisongo Semarang Erlinasari, Erlinasari; Jayati, Ari Endang; Derman, Derman
JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Vol 5, No 2: Agustus (2024)
Publisher : ICSE (Institute of Computer Science and Engineering)

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Abstract

Abstrak: Kemampuan mengoperasikan alat ukur listrik menjadi esensial bagi siswa SMK jurusan Teknik Listrik untuk menunjang praktik di lapangan. Namun, keterbatasan pengetahuan dan pengalaman praktik di sekolah seringkali menjadi kendala. Pelatihan ini bertujuan untuk meningkatkan keterampilan dan pengetahuan siswa SMK Walisongo Semarang dalam mengoperasikan alat ukur listrik, khususnya multimeter, untuk mengukur besaran tegangan dan arus. Pelatihan dilaksanakan pada 7 Mei 2024 dengan 44 peserta dari kelas X. Kegiatan meliputi persiapan, penyampaian materi, praktik pengukuran, dan evaluasi. Pelatihan menunjukkan peningkatan keterampilan penggunaan alat ukur listrik peserta sebesar 88%. Peserta mampu mengoperasikan multimeter dengan baik dan memahami cara mengukur tegangan dan arus. Diharapkan pelatihan ini dapat meningkatkan kesiapan siswa dalam menghadapi praktik di lapangan dan menunjang pembelajaran di sekolah.Abstract: Operating electrical measuring instruments is essential for vocational school students majoring in electrical engineering to support their field practices. However, limited knowledge and practical experience at school often become an obstacle. This training aims to improve the skills and knowledge of SMK Walisongo Semarang students in operating electrical measuring instruments, especially multimeters, to measure voltage and current quantities. The training was conducted on May 7, 2024, with 44 participants from class X. The activities included preparation, material delivery, measurement practice, and evaluation. The training showed an 88% increase in participants' skills in using electrical measuring instruments. Participants were able to operate the multimeter properly and understand how to measure voltage and current. It is hoped that this training can improve students' readiness to face field practices and support learning at school.
Analisa Teknis Penetapan Kanal Frekuensi Radio Untuk Lembaga Penyiaran Radio Komunitas Wilayah Kabupaten Batang jayati, Ari endang; Minarti, Wahyu; Heranurweni, Sri
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 5 No. 2 (2021)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v5i2.361

Abstract

The radio frequency spectrum constitutes a limited and strategic natural resource with high economic value, so it must be managed effectively and efficiently to obtain optimal benefits by observing national and international legal principles. Radio Community Broadcasting Institution uses limited frequency allocation in three channels, namely, in the frequency channels 202 (107.7 MHz), 203 (107.8 MHz), and 204 (107.9 MHz), with limited transmit power and area coverage. The problem in this research is the frequency overlap with other community radios in an area. The issue raised is whether it is possible to establish a new community radio in the Batang Regency area by paying attention to existing radios that have licenses in districts/cities that are in the area directly adjacent to Batang Regency by considering the limited allocation of radio frequency channels community, without the occurrence of radio frequency interference with other community radios. The purpose of this research is to solve these problems. It is necessary to have a policy in determining radio frequency users to get good quality radio broadcast reception. The method used is to analyze the frequency determination technique based on the interference analysis on other community broadcasters. By using the Radio Mobile Software for frequency repetition simulation, in this research, the results show that Batang FM Community Radio does not allow to get frequency channels for community radio operations. After all, it interferes with the Service Area of ​​Soneta FM Radio in Pekalongan City because it does not meet the requirements for determining the frequency channel = Eu> NF, namely the Nuisance Field (NF) value of 109.7 dB is greater than the Minimum Usable Field strength (Eu) of 66 dB. In comparison, Limpung FM Radio gets radio frequency on channel 203 (frequency 107.8 MHz) because it meets the requirements for determining the frequency channel = Eu> NF, namely the Minimum Usable Field strength (Eu) 66 dB greater than the Nuisance Field (NF) of 55.7 dB.
SIMULASI PERENCANAAN JARINGAN LONG RANGE (LORA) PADA AREA KOTA SEMARANG MENGGUNAKAN CLOUD RF Susilo, Dhea Ernanda; Jayati, Ari Endang; Muliandhi, Puri
Power Elektronik : Jurnal Orang Elektro Vol 12, No 3 (2023): POWER ELEKTRONIK
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/polektro.v12i3.5302

Abstract

LoRa is a wireless technology used to connect devices in a network designed to enable remote communication. LoRa is able to answer the challenges of implementing IoT with the various advantages it offers. However, with the advantages offered, the use of LoRa is still limited for now. So a simulation and feasibility analysis is needed to what extent LoRa can be applied in urban environments. In this study, a simulation analysis of LoRa network coverage in Semarang City was carried out using Cloud RF software. This simulation aims to study the signal quality and coverage of existing LoRa networks in Semarang City. From this simulation will provide a better understanding of the performance of the LoRa network in the city of Semarang. The results of this simulation show that the LoRa network coverage in Semarang City reaches 47.56%, and the unreached areas or blank spots reaches 52.44%. Thus, this evaluation can be used as a basis for optimizing the LoRa network in Semarang City.
Pelatihan Pembuatan Media Pembelajaran Interaktif untuk Peningkatan Kualitas Pembelajaran Bagi Guru di SDN 3 Jatinegoro, Sempor, Kebumen Sipan, Muhammad; Jayati, Ari Endang; Muliandhi, Puri
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 8, No 2 (2024): November
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2024.v8i2.3311

Abstract

Media pembelajaran merupakan sarana penting bagi guru dalam memberikan pelajaran kepada siswa mereka. Bagaimana guru menyampaikan informasi dan media yang digunakan memengaruhi keberhasilan siswa dalam menerima dan memahami pelajaran. SDN 3 Jatinegoro, Sempor, Kebumen adalah sekolah yang terkena efek langsung pandemi COVID-19 dan terdiri dari hanya delapan guru, yakni tiga PNS dan lima GTT. Karena kondisi lingkungan saat ini yang tidak menentu, terutama selama tiga tahun terakhir akibat pandemi COVID-19, pengabdian ini dimaksudkan untuk meningkatkan kompetensi guru dalam sistem pembelajaran seperti pembelajaran pendidikan dasar. Dengan kondisi ini, guru diharapkan dapat menerapkan pembelajaran online dengan efektif sehingga siswa mampu mampu menguasai materi apa yang telah diajarkan selama proses pembelajaran. Untuk mencapai semua ini, guru harus memiliki kemampuan untuk membuat media pembelajaran berkualitas tinggi, termasuk media pembelajaran yang interaktif untuk siswa. Tujuan pengabdian yaitu meningkatkan pembelajaran online guru SDN 3 Jatinegoro, Sempor, Kebumen dengan melaksanakan pelatihan perihal pembuatan media belajar yang interaktif, yang akan membantu guru menjadi dapat berinteraksi dengan siswa. Setelah mengikuti pelatihan ini, diharapkan guru mampu mempunyai keahlian lebih baik perihal pembuatan media pembelajaran lebih kreatif. Ini akan memastikan bahwa baik pembelajaran online maupun pembelajaran langsung tetap memiliki kualitas yang sama.
Improvement of Salt production quality through threaded filter technology with geomembrane media in Bledug Kuwu, Grobogan, Central Java Erwin Nofiyanto; Haslina Haslina; Ari Endang Jayati
Community Empowerment Vol 10 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12237

Abstract

Salt is an essential ingredient in everyday life as a cooking spice. Bledug Kuwu salt, produced from the eruption of a mud crater in Kuwu Village, Kradenan District, Grobogan Regency, Central Java Province, resembles coarse salt but has a slightly paler color. The process of making this salt remains simple; it involves flowing the water from the eruption into a reservoir and then evaporating it using bamboo or plastic sheets. The purpose of this community service initiative is to improve the quality of salt production through the application of threaded filter technology (TUF) using geomembrane media in Bledug Kuwu, Grobogan. The methods employed include lectures, discussions, and question-and-answer sessions. The results of the TUF training indicated a positive impact on salt production in Bledug Kuwu. In addition to enhancing participants’ understanding of this technology, farmers also benefited from the provision of HDPE geomembrane plastic. Previously, they used 2-meter white plastic, which was prone to damage and lasted only about a month. However, by switching to HDPE geomembrane plastic, the production of Bledug Kuwu salt increased significantly; salt was formed faster, the price became higher, the installation process was easier, and the lifespan of the materials was extended. Overall, farmers reported significant benefits from the implementation of threaded filter technology (TUF) and the use of HDPE geomembrane plastic.
Multimedia Transmission Technique for Smart Ambulance with multi-carrier OFDM in a V2V and V2I Channel model using Software Defined Radio Technology Wahyu Pamungkas; Anggun Fitrian; Solichah Larasati; Ari Endang Jayati; Elfira Nureza Ardina; Jans Hendry
Journal of Applied Engineering and Technological Science (JAETS) Vol. 6 No. 1 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v6i1.5030

Abstract

This research explores the implementation of a cutting-edge Software Defined Radio (SDR) framework to transmit multimedia files that can be assumed to be medical data in smart ambulances. The system utilizes multi-carrier Orthogonal Frequency-Division Multiplexing (OFDM) across V2V and V2I channels. The research is based on the notion that adaptive real-time communication is essential for the uninterrupted supply of key patient data to medical facilities and vehicles in transit, in order to address the problems posed by high mobility and dynamic environmental conditions. A comprehensive SDR system has been constructed and assessed in comparison to conventional communication mechanisms, demonstrating notable advancements in data accuracy and uninterrupted transmission. Our system successfully established stable connections in V2I channels, even in the presence of environmental obstacles. It maintained average power levels of approximately 32.074 dBm and a Peak-to-Average Power Ratio (PAPR) of 1.037 dB. These results indicate a constant signal envelope that promotes optimal signal transmission with excellent fidelity. In V2V scenarios, we successfully maintained data integrity with a low Peak-to-Average Power Ratio (PAPR) of 3.316 dB, even while vehicles were moving at a speed of 20 km/h. Additionally, we secured a high likelihood (94.5%) that the signal power remained close to the average, showing the robustness of our system against Doppler effects and signal dispersion. Text transmissions experienced errors when subjected to a Doppler shift of 20 km/h, which impacted the decoding of the received text. Similarly, image transmissions revealed limitations in bandwidth, as a transmitted image of 3640 KB was received with a degraded 4 KB. This emphasizes the importance of implementing effective error handling and recovery mechanisms. The results illustrate the efficacy of the suggested system in maintaining a high Quality of Service (QoS), offering proof of the effectiveness of contemporary wireless communication technologies in improving emergency medical services and setting new standards in smart ambulance capabilities.
Perbandingan Penyambungan Kabel Sambungan Rumah Menggunakan Tap Konektor dan Sambungan Lilit Terhadap Susut Muazi, Ari Alwi Kholid; Jayati, Ari Endang; Ardina, Elfira Nureza
Smart Comp :Jurnalnya Orang Pintar Komputer Vol 14, No 3 (2025): Smart Comp: Jurnalnya Orang Pintar Komputer
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/smartcomp.v14i3.8348

Abstract

PT PLN (Persero) terus berupaya meningkatkan kualitas layanan dan penjualan tenaga listrik, salah satunya melalui penambahan jumlah pelanggan pada segmen Tegangan Rendah (TR), Tegangan Menengah (TM), dan Tegangan Tinggi (TT). Salah satu langkah strategis yang dilakukan adalah percepatan proses penyambungan pelanggan baru. Proses penyambungan ini melibatkan integrasi instalasi rumah pelanggan ke dalam jaringan distribusi tegangan rendah. Titik penyambungan dapat dilakukan dengan dua metode utama, yaitu menggunakan konektor (tap connector) atau dengan teknik lilit langsung pada konduktor. Perbedaan jenis konektor dan teknik sambungan ini dapat memengaruhi besarnya susut tegangan (voltage drop) yang terjadi pada sistem. Penelitian ini bertujuan untuk menganalisis dan membandingkan nilai susut tegangan yang ditimbulkan oleh dua metode sambungan tersebut. Metode yang digunakan adalah simulasi tegangan berbasis model, di mana sistem penyambungan dimodelkan untuk mengevaluasi performa dan nilai susut tegangan pada berbagai kondisi. Hasil dari penelitian ini diharapkan dapat menjadi acuan bagi PLN dalam menentukan metode sambungan yang optimal guna meminimalkan kehilangan daya dan meningkatkan efisiensi distribusi listrik.
Innovation of Hybrid Solar and Gas-Powered Maggot Dryer Machine as a Solution for Dry Feed Pinandita, Satria; Jayati, Ari Endang; Derman, Derman; Elawati, Nunung Eni; Ramadan, Bimastyaji Surya
Journal of Community Empowerment Vol. 5 No. 1 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i1.19313

Abstract

Sugihmanik Village, a major tofu production center, produces substantial amounts of organic waste, particularly wastewater that contaminates local rivers and disrupts the surrounding ecosystem. A community service program has been developed to convert tofu waste sludge into maggot feed, followed by drying using a hybrid solar and gas-powered maggot drying machine. Initial activities involved program outreach and technical training on maggot cultivation and the drying process. A drying trial demonstrated that 200 grams of wet maggots were reduced to 114 grams within seven minutes. Monthly drying operations required only four 3-kg LPG cylinders, resulting in 81 kilograms of dry maggots and a potential monthly income of IDR 4.050.000. Environmental degradation caused by tofu waste has been significantly mitigated, while local economic productivity has improved. The drying machine enhances the commercial value of maggots as durable livestock feed. The initiative strengthens the operational sustainability of the Krida Manik Waste Bank and offers a scalable model for resource-based environmental solutions.
Peran Technopreneur dalam Pengembangan Usaha Digital di Indonesia Xaverius Kaparang, Stevanus; Kurniawan Nugroho, Andi; Endang Jayati, Ari
Jurnal Sosial Teknologi Vol. 4 No. 8 (2024): Jurnal Sosial dan Teknologi
Publisher : CV. Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsostech.v4i8.1338

Abstract

Di era digital saat ini, peran technopreneur semakin krusial dalam mendorong inovasi dan pertumbuhan ekonomi di Indonesia, terutama dalam menghadapi persaingan global yang semakin ketat. Usaha digital menjadi salah satu pilar utama dalam perkembangan ekonomi nasional, namun tantangan seperti kurangnya infrastruktur teknologi dan akses modal masih menjadi hambatan bagi technopreneur untuk mengoptimalkan potensi mereka. Penelitian ini bertujuan untuk mengkaji bagaimana technopreneur berkontribusi dalam menciptakan peluang usaha baru, meningkatkan daya saing, serta mengatasi tantangan yang dihadapi oleh industri digital di Indonesia. Penelitian ini menggunakan desain kuantitatif, dengan pengumpulan data melalui teknik purposive sampling terhadap 100 technopreneur (pelaku bisnis yang memanfaatkan teknologi) dengan menyebarkan kuesioner yang berisi sepuluh pertanyaan mengenai peran technopreneur dalam pengembangan bisnis digital di Indonesia. Hasil penelitian menunjukkan Hasil penelitian menunjukkan bahwa technopreneur memainkan peran yang signifikan dalam transformasi digital. Kesimpulan penelitian ini adalah technopreneur memiliki peran penting dalam mendorong inovasi dan pertumbuhan ekonomi digital di Indonesia. Namun, diperlukan dukungan yang lebih baik dari pemerintah dan pemangku kepentingan lainnya untuk memfasilitasi technopreneur dalam mengembangkan potensi mereka secara optimal.  
Co-Authors Ananta Wahyu P Andi Kurniawan Anggun Fitrian Ardina, Elfira Nureza aris herizaldi Aziz Fatakhunnaim Bagus Eryawan Budiani Destyningtias Dara Ngahu, Besaliel Derman, Derman Diah Setyati Budiningrum Didan Prakosa Elawati, Nunung Eni Elfira Nureza Ardina Erialdi Syahrial Erlinasari Erlinasari Erlinasari Erlinasari, Erlinasari Ervina Sukoriyanti Erwin Nofiyanto Fa'is Nur Farid Fatchur Roehman Fatmawati Wibowo Harmini Haslina Haslina Hendry, Jans Iin Irawati Kurniawan Nugroho, Andi Latifah Hidayati M. Sipan Minarti, Wahyu Mu'izzaddin Wa'addulloh Muazi, Ari Alwi Kholid Muhammad Ikhsan Setiawan Muhammad Sipan Muhammad Wildan Salama Muliandhi, Puri Nalarsih, Retno Tri Noor Arifin Puri Muliandhi Puri Muliandi Purwanto Purwanto Ramadan, Bimastyaji Surya Rohadi Rohadi Roni Kartika Pramuyanti Satria Pinandita Sesotyo, Priyo Adi Sipan, M. Sipan, Muhammad Solichah Larasati Sri Heranurweni Stefanus Christyan Aditama Sunu Arsy Pratomo Surya Hadi Saputra Susilo, Dhea Ernanda Syahrial, Yoppi Trias Widorini Wahyu Pamungkas Xaverius Kaparang, Stevanus