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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Techne : Jurnal Ilmiah Elektroteknika SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Elektrika Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Jurnal Nasional Teknik Elektro dan Teknologi Informasi
Ari Endang Jayati
Program Studi Teknik Elektro, Fakultas Teknik, Universitas Semarang
Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Medicine & Pharmacology Nursing Public Health Social Sciences Other

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RANCANG BANGUN ANTENA MICROSTRIP 900 MHz UNTUK SISTEM GSM Ananta Wahyu P; Ari Endang Jayati; Sri Heranurweni
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 12, No 1 (2014): Desember 2014
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v12i1.775

Abstract

Penelitian ini mengeksplorasi pembuatan antena mikrostrip dengan frekuensi kerja 900 MHz untuk jaringan GSM (Global System For Mobile Communication). Antena mikrostrip berbentuk persegi panjang dengan substrat epoxy fiberglass yang memiliki konstanta dielektrik 4.8. Parameter yang harus diperhatikan dalam merancang adalah pola radiasi antena, gain, VSWR (Voltage Standing Wave Ratio), bandwidth, dan impedansi masukan. Dalam penelitian ini dirancang antena microstrip pada frekuensi 900 MHz. Dengan parameter gain 7,83 dB, VSWR 1,29, bandwidth 10 MHz dan impedansi input 62,57 + j7,01Ω. Simulasi menggunakan perangkat lunak MMANAGAL V.1.20.20.
EVALUASI PENGENDALIAN LALU LINTAS DENGAN LAMPU PENGATUR LALU LINTAS PADA SIMPANG BERSINYAL Iin Irawati; Trias Widorini; Ari Endang Jayati
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2014): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 5 2014
Publisher : Prosiding SNST Fakultas Teknik

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Abstract

Permasalahan yang terjadi pada simpang bersinyal yang ada sekarang ini adalah banyak dijumpai antrian atau tundaan panjang, terutama pada saat jam – jam sibuk. Dilihat dari permasalahan yang ada, maka penelitian ini bertujuan untuk mengevaluasi pengendalian lalu lintas pada simpang bersinyal, sehingga diperoleh suatu solusi terbaik untuk mengurai permasalahan pada simpang bersinyal. Metode yang digunakan untuk mengevaluasi simpang bersinyal yang ada di Indonesia adalah metode MKJI 1997, dengan panjang antrian atau tundaan sebagai parameter kinerja simpang bersinyal. Metode tersebut bersifat general untuk semua kondisi simpang bersinyal yang ada di Indonesia. Apabila ditinjau dari kondisi existing lapangan, maka setiap simpang bersinyal memiliki karakteristik simpang, lalu lintas, land use, dan geometrik yang berbeda – beda. Salah satu simpang bersinyal yang dijadikan kajian wilayah studi adalah simpang Tlogosari – Semarang. Pada simpang tersebut sering dijumpai antrian panjang, baik pada hari kerja ( Senin – Jum’at ) maupun saat weekend ( Sabtu – Minggu ). Hasil analisis kinerja simpang bersinyal yang berupa panjang antrian dibandingkan dengan kondisi existing di lapangan, dengan menggunakan variabel - variabel yang berupa waktu siklus, fase dan arus jenuh.  Apabila panjang antrian tidak sebanding dengan kondisi existing, maka perlu adanya revisi pada metode perhitungan simpang bersinyal yang disesuaikan dengan karakteristik simpang yang ada. Kata kunci : panjang antrian, waktu siklus, fase dan arus jenuh.
RANCANG BANGUN PROTOTYPE SMART HOME DENGAN KONSEP INTERNET OF THINGS (IOT) MENGGUNAKAN RASPBERRY PI BERBASIS WEB Bagus Eryawan; Ari Endang Jayati; Sri Heranurweni
Elektrika Vol 11, No 2 (2019): Oktober 2019
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (609.102 KB) | DOI: 10.26623/elektrika.v11i2.1691

Abstract

High economic growth makes the demand for comfortable and safe houses increase and the application of technology that is most clearly seen is technology with automatic systems. With this technology, the use of electricity in the house can be minimized and offer convenience in controlling the house. Sometimes homeowners forget to turn off the lights when they are outside the house so they have to go back and do checks that are very inefficient both in terms of time and financially such as the cost of gasoline to return to the house. Based on this, the Smart Home Prototype was created with the concept of the Internet of Things (IoT) using Raspberry Pi Web-Based, which is a system that can remotely control electronic home appliances using Raspberry Pi as a base system, which is connected to Web Applications through the internet network. The electronic equipment used in this study is in the form of 5 lamps, 1 stepper motor to control the garage, 1 servo motor to control the door lock, and 1 brushless motor that functions as a fan. Blocking and overall test results on Bedroom Lights, Living Room Lights, Kitchen Lights, Bathroom Lights, Porch Lights, Garages, Door Locks, and Fans, all work well. The testing of the distance between cities against the Prototype Smart Home was successfully carried out, where the Prototype Smart Home in the City of Demak was successfully controlled by the User who at the time of testing was in the City of Semarang, Kudus, Japan, Surabaya, and Jakarta.
RANCANG BANGUN ANTENA MIKROSTRIP PATCH CIRCULAR DENGAN TEKNIK LINIER ARRAY UNTUK FREKUENSI WIFI 2,4 GHZ Surya Hadi Saputra; Ari Endang Jayati; Erlinasari Erlinasari
Elektrika Vol 11, No 1 (2019): April 2019
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (747.734 KB) | DOI: 10.26623/elektrika.v11i1.1538

Abstract

Microstrip antenna when the antenna is one of the very rapid development in telecommunications systems that applied to many modern telecommunication equipment today. One application is the wifi. Wifi (Wireless Fidelity) is a wellknown tech-nology that utilizes an electronic device to exchange data wirelessly (using radio waves) over a computer network, including high-speed Internet connection, to provide a network connection to all users in the surrounding area. The purpose of this final project is to design microstrip patch antenna built a circular linier array that can be used for signal wifi stronger. The resulting microstrip antenna working in 2.4 GHz band with the acquisition of gain =3.4301 dBi, VSWR = 1.3749 and radiation pattern unidirectional. This antenna design simulation using the software Ansoft High Frequency Structure Simulator v13. For linear circular microstrip patch antenna array then showed its parameters.Keywords: Microstrip Antenna, Wifi, Array, VSWR, Gain
Analisa Teknis Penetapan Kanal Frekuensi Radio Untuk Lembaga Penyiaran Radio Komunitas Wilayah Kabupaten Batang Ari endang jayati; Wahyu Minarti; Sri Heranurweni
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.
Analisis Kualitas Jaringan Wi-Fi di Lantai 7 Gedung Menara USM Menggunakan Ekahau Site Survey Aziz Fatakhunnaim; Jayati Ari Endang; Muliandhi Puri
Techné : Jurnal Ilmiah Elektroteknika Vol. 21 No. 2 (2022)
Publisher : Fakultas Teknik Elektronika dan Komputer Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31358/techne.v21i2.328

Abstract

Teknologi Wi-Fi merupakan sebuah media penghantar komunikasi data tanpa kabel yang bisa digunakan untuk komunikasi atau mentransfer data dengan kemampuan yang sangat cepat. Hal ini dikarenakan teknologi Wi-Fi dapat meningkatkan mobilitas pengguna serta dapat mengatasi keterbatasan dari teknologi jaringan komputer yang menggunakan media kabel. Penelitian ini memiliki tujuan untuk menganalisis dan merencanakan jumlah dan penempatan access point. Proses pengambilan data awal performansi kualitas jaringan menggunakan metode walktest. Parameter pengambilan data menggunakan Signal Strength, Signal to Noise Ratio (SNR), Throughput, dan Data Rate. Model propagasi COST-231 Multiwall digunakan untuk menghitung link budget, jari-jari access point dan pathloss agar mendapatkan jumlah access point yang optimal. Hasil dari perhitungan selanjutnya disimulasikan menggunakan perangkat lunak Ekahau Site Survey untuk mengetahui performansi kualitas jaringan Wi-Fi yang sudah dirancang. Berdasarkan perhitungan didapatkan total 16 buah access point digunakan mendapatkan performansi kualitas jaringan yang optimal. Hasil simulasi berdasarkan penambahan access point mendapatkan hasil yang lebih optimal dengan nilai signal strength > -45 dBm sebesar 56,4%.
PENINGKATAN KUALITAS PEMBELAJARAN MELALUI PELATIHAN PEMBUATAN MEDIA PEMBELAJARAN INTERAKTIF BAGI GURU DI SDN 01 POMAH KLATEN Muhammad Sipan; Ari Endang Jayati; Puri Muliandi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 6, No 3 (2022): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v6i3.10400

Abstract

ABSTRAKDampak negatif pendemi Covid-19 yang terjadi sekarang ini cenderung menurun bagi kita seperti dibidang Pendidikan khususnya pembelajaran yang terjadi di sekolah dasar, walapupun begitu kondisi ini masih menyebabkan belum sepenuhnya sistem pembelajaran langsung bisa dilakukan, seperti pembelajaran di SDN 01 Pomah Klaten. SDN 01 Pomah adalah sekolah yang terimbas dampak langsung pendemi covid-19, dengan sumber daya manusia yang kurang dan hanya terdiri dari 8 orang guru yang sudah PNS, guru SDN 01 Pomah Klaten dituntut untuk dapat menyelesaikan permasalahan pembelajaran daring yang masih berjalan sekarang ini walaupun sudah bersifat hybrid 50% dikelas 50% di rumah. Pembelajaran yang berjalan sekarang ini guru memberikan materi dengan media pembelajaran yang kurang interaktif misalkan dengan hanya memanfaatkan buku pelajaran, LKS, dan media social. Kondisi ini diharapkan guru mampu melaksanakan pembelajaran daring dengan baik bagi siswa untuk memahami materi sehingga siswa dapat memahami materi yang diberikan saat pembelajaran berlangsung. Usaha mencapai itu semua, kemudian yang perlu dilakukan adalah guru harus dapat menyediakan media pembelajaran yang berkualitas, salah satunya media pembelajaran yang interaktif bagi siswa. Masalah ini dimanfaatkan oleh pengabdi untuk menjalankan pelatihan ini dengan tujuan meningkatkan pembelajaran online bagi para guru SDN 01 Pomah Klaten dengan melakukan pelatihan pembuatan media pembelajaran interaktif sehingga guru dapat lebih interaktif terhadap siswa saat pembelajaran beralngsung dan siswa lebih memahami materi pembelajaran yang sudah di berikan. Meskipun pembelajaran dilakukan secara online tidak melalui tatap muka, diharapkan kreativitas belajar guru akan meningkat melalui pelatihan ini sehingga kualitas pembelajaran tidak menurun. Kata kunci: covid 19; interaktif; pomah; media pembelajaran; SDN. ABSTRACTThe negative impact of the Covid-19 pandemic that is happening now tends to decrease for us, such as in the field of education, especially learning that occurs in elementary schools, even though this condition still causes the direct learning system to not be fully implemented, especially learning at SDN 01 Pomah Klaten. SDN 01 Pomah is a school directly affected by the COVID-19 pandemic, with insufficient human resources and only consists of 8 teachers who are already civil servants, SDN 01 Pomah Klaten teachers are required to be able to solve online learning problems that are still running today even though they have been 50% hybrid in 50% class at home. Learning that is currently running, the teacher provides material with less interactive learning media, for example by only using textbooks, worksheets, and social media. In this condition, teachers are expected to be able to carry out online learning well so that students can understand the material given during learning. Efforts to achieve all of this, the step that must be taken is that the teacher must be able to provide quality learning media, one of which is interactive learning media for students. This problem is used by servants to carry out this service with the aim of improving online learning for SDN 01 Pomah Klaten teachers by conducting training in making interactive learning media so that teachers can be more interactive with students when learning takes place and students better understand the learning material that has been given. It is hoped that after this training teachers can improve learning creativity so that the quality of learning does not decrease even though learning is carried out online instead of face-to-face. Keywords: covid 19; interactive; pomah; learning media; SDN.
Perbandingan Kinerja Generalized Frequency Division Multiplexing Menggunakan Modulasi QAM dan Offset QAM Ari Endang Jayati; Budiani Destyningtias
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 12 No 1: Februari 2023
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jnteti.v12i1.2548

Abstract

Generalized frequency division multiplexing (GFDM) is a future nonorthogonal multicarrier system. GFDM is a block-shaped data transmission technique in which each subcarrier is formed from nonrectangular shaped pulses. The application of quadrature amplitude modulation (QAM) mapping for GFDM is excellent because of the increased spectral efficiency. QAM also has limitations, namely increasing complexity when implemented. Apart from that, the inter carrier interference (ICI) persists and greatly influences the system. The technique for mitigating this weakness is by using offset QAM (OQAM) mapping. The advantages of GFDM/OQAM over GFDM/QAM are that the quadrature and in-phase components in OQAM modulation do not experience shifts in the same time slot, low out of band (OOB), high data rate and is ICI free. This study compares two scenarios namely the GFDM/OQAM and the GFDM/QAM systems. It analyzes the performance of the bit error rate (BER) if additive white gaussian noise (AWGN) and Rayleigh channels are passed. The simulation results show that GFDM/OQAM has better performance results. The simulation results showed that in order to obtain BER 10-2, there should be a decrease in the value of Eb/N0 (ratio of energy per bit to noise power) by 8 dB in QAM to OQAM when they were passed AWGN channels. Meanwhile, when passed the Rayleigh Fading channel, there was a decrease in the Eb/N0 value by 9 dB in the QAM to OQAM to get a BER value of 10-2. This study has also succeeded in investigating the performance of the two systems for parameters of the constellation diagram and signal spectrum. Moreover, it has succeeded in obtaining a roll off factor reference value that can be used in the application of the GFDM/OQAM system with the best performance result of 0.3. The roll off factor value greatly affects the performance of the GFDM system.
STEAM STERILISASI PADA SAYURAN DAN BUAH-BUAHAN BERBASIS MESIN LEARNING Stefanus Christyan Aditama; Andi Kurniawan N; Ari Endang Jayati
SNHRP Vol. 5 (2023): Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Ke 5 Tahun 2023
Publisher : LPPM Universitas PGRI Adi Buana

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Abstract

Sayuran dan buah-buahan yang merupakan salah satu makanan yang sangat penting untuk dikonsumsi oleh manusia karena kaya akan vitamin dan serat. Banyak orang tertarik mengkonsumsi buah dan sayuran secara langsung seperti salad, lalapan, dan juice.Selain itu, kebersihan buah dan sayuran harus diperhatikan karena buah dan sayur yang dikonsumsi secara langsungterkadang hanya dicuci biasa sehingga tidak cukup bersih dari kontaminasi bakteri pantogen. Bakteri pantogen yang sering mengkontaminasi sayur dan buah-buahan adalah salmonella spp dan escherichia coli yang dapat menyebabkan keracunan. Hal tersebut membuat peneliti tertarik untuk merancang sebuah alat steamer sterilisasi yang menggunakan lampu UVC berbasis machinelearningdengan tujuan untuk mengetahui kandungan bakteri pada buah dan sayur setelah melalui tahap sterilisasi dandibuktikan secara akurat melalui hasil mikroskop.
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.
Co-Authors Ananta Wahyu P Andi Kurniawan Aziz Fatakhunnaim Bagus Eryawan Budiani Destyningtias Erlinasari Erlinasari Iin Irawati M. Sipan Muhammad Sipan Muliandhi Puri Puri Muliandi Sri Heranurweni Sri Heranurweni Sri Heranurweni Sri Heranurweni Stefanus Christyan Aditama Surya Hadi Saputra Trias Widorini Wahyu Minarti