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Perancangan Antena MIMO 8x8 Frekuensi Kerja 3,5 GHz Untuk Teknologi 5G Nasrul, Nasrul; Nindika, Aprilia; Yustini, Yustini; Septima, Uzma
Elektron : Jurnal Ilmiah Volume 15 Nomor 2 Tahun 2023
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.0.0.390

Abstract

The 8×8 MIMO antenna is designed and simulated using CST Studio Suite 2019 software, which generates a visualization using MATLAB software. After optimization, the measurement and simulation of the return loss parameters at a frequency of 3,5 GHz yielded results of -11,85 dB and -31,57 dB respectively. In addition, there are several other frequency ranges with values below -10 dB, such as between 3,047 GHz and 3,243 GHz, 3,438 GHz and 3,925 GHz, and 4,575 GHz and 5,095 GHz. The measured VSWR is 1,668, while the simulation results show a VSWR value of 1,054. In addition, the Mutual Coupling simulation result is -13,16, while the Mutual Coupling measurement is -28,53, with ECC values of 0,0005 and 0,0002, respectively.
Pemberdayaan Masyarakat Melalui Pelatihan Handycraft Berbasis Digital Yolanda, Amelia; Yustini, Yustini; Zurnawita, Zurnawita; Aulia, Siska; Maria, Popy
JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L) Vol 2 No 1 (2024): JURNAL PENGABDIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (JP3L): Volume 2 Nomor 1,
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jp3l.v2i1.56

Abstract

Badan Kontak Majelis Taklim (BKMT) merupakan induk majelis taklim se-Indonesia. BKMT berfungsi sebagai media pemberdayaan dan pengembangan pendidikan keagamaan baik bagi setiap anggota organisasi maupun bagi masyarakat dan bangsa secara keseluruhan. BKMT Kecamatan Padang Utara merupakan salah satu BKMT yang berada di Kota Padang. BKMT ini mewadahi bidang dakwah, pendidikan, sosial dan pemberdayaan ekonomi. Permasalahan yang muncul pada bidang pemberdayaan ekonomi  adalah masih terbatasnya keterampilan yang dimiliki oleh anggota, keterbatasan waktu untuk pelaksanaan kegiatan dan keterbatasan pengetahuan tentang bagaimana  mempromosikan produk yang telah dihasilkan. Solusi yang diberikan yaitu melakukan pelatihan handycraft berupa pembuatan beberapa aksesoris.  Agar produk yang dihasilkan dapat dipromosikan secara online maka tim PKM juga akan memberikan tips bagaimana caranya mengoptimalkan smartphone yang dimiliki untuk membuat foto/video produk dan menggunakan software desain grafis canva untuk mendesain sebuah poster. Sedangkan untuk keterbatasan waktu yang dimiliki oleh anggota untuk hadir dalam kegiatan pelatihan yang nantinya dilaksanakan tim PKM akan membuatkan video tutorial pembuatan handycraft. Pelaksanaan kegiatan dimulai dulu dengan paparan tentang adaptasi teknologi pada era digital. Dilanjutkan paparan informasi apasaja yang harus ada pada sebuah poster dan mendesain poster pada canva dengan menggunakan template yang telah tersedia. Kemudian dilanjutkan dengan membuat handycraft berupa bros dan tasbih. Karya yang telah dibuat difoto dan diedit dengan software canva yang hasilnya nanti dapat digunakan sebagai media promosi. Dengan kegiatan ini diharapkan permasalahan mitra dapat diatasi dan pemberdayaan masyarakat menjadi lebih baik.
Pelatihan IoT Untuk Implementasi Smart Home Di SMKN 8 Padang Sahid Ridho; Firdaus Firdaus; Yustini Yustini; Zurnawita Zurnawita; Abdi Abdillah; Dedi Tri Laksono
Jurnal Insan Pengabdian Indonesia Vol. 1 No. 2 (2023): Juni : Jurnal Insan Pengabdian Indonesia
Publisher : PT. ALHAFI BERKAH INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62007/jouipi.v1i2.64

Abstract

In the current era of digital connectivity, the Internet of Things (IoT) has gained utmost importance. However, at SMKN 8 Padang, students in Computer Networking and Telecommunications Engineering program lack a comprehensive understanding of IoT and its application in Smart Home systems. To address this, the Community Service Team (PKM) devised an IoT training program with a focus on Smart Home implementation. Through lectures, guidance, and hands-on training, students gained insights into IoT fundamentals, hardware and software components, and practical skills for designing and implementing Smart Home systems. The training sessions proceeded smoothly, and students showed enthusiasm in assembling and connecting devices like Arduino, Relay, and ESP8266. Evaluations revealed that 98.33% of the students improved their knowledge and skills, with 3.33% expressing satisfaction with the training. This IoT training significantly enhanced students' understanding of emerging technologies and motivated them to seek innovative solutions in the future. Empowered with relevant technical skills, SMKN 8 Padang students are expected to contribute to the implementation of Smart Home systems and confidently face the challenges of an increasingly digital and interconnected future
Motivasi Belajar IPA Siswa Melalui Penerapan Model Pendekatan Konflik Kognitif di Kelas VIIIB SMP Negeri 8 Kunto Darussalam Yustini, Yustini
Journal of Pedagogy and Online Learning Vol. 1 No. 1 (2022): JPOL Volume 1 Nomor 1 Juni 2022
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.005 KB) | DOI: 10.24036/jpol.v1i1.7

Abstract

This study aims to determine the increase in learning motivation of class VIIIB students of SMP N 8 Kunto Darussalam on the subject matter of pressure by using a cognitive conflict approach model. The subjects studied were students of class VIIIB, totaling 20 people. The research instrument is a learning device and a data collection instrument in the form of motivational questionnaires before and after learning. In analyzing the data, descriptive analysis techniques and inferential analysis were used. From the results of the descriptive analysis, it was found that students' learning motivation for the interest category increased by 13.2%, the relevance category increased by 6.5%, the expectation category increased by 4.2%, and for the outcome category it increased by 3.8%. From the results of inferential analysis using the sigt test, the P value <0.05, i.e. 0.000114 <0.05, which means the research hypothesis is accepted, namely there is a significant difference in science learning motivation in class VIIIB SMP Negeri 8 Kunto Darussalam on the subject of pressure through the application of the cognitive conflict approach model at the level of confidence 95%.
PEMBUATAN MODUL TRAINER JARINGAN KABEL FIBER OPTIK DAN PENGUKURAN REDAMAN KABEL FIBER OPTIK TIPE KABEL SINGLE MODE DENGAN PENAMBAHAN PASSIVE SPLITTER 1:8 Firmansyah, Herian; Asril, Aprinal Adila; Yustini, Yustini; Berli, Ade Usra; Meilisa, Mira
Rang Teknik Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Januari 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v8i1.5796

Abstract

Fiber optik adalah media transmisi yang dapat menyalurkan informasi melalui cahaya dengan memiliki bandwidth yang lebar dan kehilangan daya yang kecil. Pada tugas akhir ini dilakukan pembuatan modul trainer fiber optik dengan tujuan agar mahasiswa memiliki pengetahuan tentang pengaruh redaman yang dihasilkan tanpa dan dengan penggunaan passive splitter 1:8 pada perangkat ODP dan pengaruh macrobending pada joint Closure terhadap redaman yang dihasilkan. Pada modul trainer fiber optik ini pengukuran dilakukan dengan menggunakan HLS dan OPM. Dari tugas akhir ini diperoleh redaman yang dihasilkan tanpa penggunaan passive splitter 1:8 yaitu berkisar dari -7,68 dBm hingga -7,92 dBm. Kemudian dengan penggunaan passive splitter 1:8 didapatkan hasil nilai redaman berkisar dari -17,24 hingga -17,97. Untuk nilai redaman macrobending kabel fiber optik pada diameter kelengkungan 8 cm didapatkan berkisar dari 0,03 dB hingga 0,31 dB, lalu pada diameter kelengkungan 5 cm nilai redaman yang didapatkan berkisar dari 0,06 dB hingga 0,55 dB, dan pada diameter kelengkungan 2 cm nilai redaman yang didapatkan berkisar dari 0,13 dB hingga 0,88 dB. Semakin kecil diameter kelengkungan macrobending pada kabel fiber optik maka nilai redaman yang dihasilkan akan semakin besar dan kualitas sinyal yang diterima juga akan buruk.
Installation and Activation of Fiber To The Home (FTTH) Network Using Gigabit Passive Optical Network (GPON) Technology and Quality of Service (QoS) Analysis Ramadan, Zardi; Yulindon, Yulindon; Yustini, Yustini; Asril, Aprinal Adila
JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Development Vol. 2 No. 1 (2024): JATAED: Journal of Appropriate Technology for Agriculture, Environment, and Dev
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jataed.v2i1.62

Abstract

This research discusses the design, implementation, and evaluation of Fiber to the Home (FTTH) networks using Gigabit Passive Optical Network (GPON) technology, including network topology design, device installation, activation, and quality of service analysis. Attenuation measurements were conducted before and after activation to ensure compliance with ITU-T G.984 standards, while Quality of Service (QoS) analysis using Wireshark application evaluated parameters such as throughput, packet loss, delay, and jitter. Results show an increase in network efficiency after activation, with a decrease in attenuation. QoS measurements showed excellent network performance, with high throughput (2,595 Kbps), no packet loss, low delay (3.106 ms), and minimal jitter (3.128 ms). This study provides a comprehensive overview of FTTH network implementation and the importance of quality of service evaluation to ensure optimal performance for end users. The systematic approach used can be a valuable guide for telecom operators and internet service providers in implementing reliable and efficient FTTH networks. The study also emphasizes the importance of continuous monitoring and evaluation of network performance, contributing to the technical understanding of FTTH implementation and highlighting the implications for end-user experience as well as the potential for future broadband service development.
Fiber to the home (FTTH) activation system and analysis of dropcore cable connection losses on optical network performance Asril, Aprinal Adila; Maria, Popy; Yustini, Yustini; setiawan, Herry; Nasrul, Nasrul
Brilliance: Research of Artificial Intelligence Vol. 4 No. 1 (2024): Brilliance: Research of Artificial Intelligence, Article Research May 2024
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v4i1.3815

Abstract

The FTTH network is currently a reliable network concept used in an era where very fast access to information is needed as it is today, but several problems arise in the FTTH network, for example, reduced data transmission speed due to losses in the transmission cable connection or drop core. In this study, activation of the FTTH network will be carried out so that it can function for internet data transmission and observations will also be made of the connection losses on the 10-meter dropcore cable with the number of connections respectively, namely no connection, 1 connection, and 2 connections, where each connection obtains connection losses from 0.00 to 0.02 dB which will affect the total attenuation obtained in the activated FTTH network. Standard attenuation for fiber optic network activation starting from OLT to ONT according to IEEE Std 802.3ah states that the permissible attenuation / loss tolerance is between 20-24 to 29 dB. Splicing losses are caused by errors in the process of joining the fiber optic cable cores. The number of connections in a fiber optic cable can affect the attenuation value in the fiber optic cable. The more connections, the higher the attenuation in the fiber optic cable.
Fiber to The Home (FTTH) Network Design in Analyzing Macro Bending Problems in The Home Cable Installation Segment Maria, Popi; Asri, Aprinal Adila; Yustini, Yustini; Wiharti, Wiwik; Prayama, Deddy
International Journal of Advanced Science Computing and Engineering Vol. 4 No. 2 (2022)
Publisher : SOTVI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1399.301 KB) | DOI: 10.62527/ijasce.4.2.90

Abstract

Fiber to The Home (FTTH) is one of the optical networks used for every home in accessing the internet in the form of voice, data, and video. In this study, the authors built an FTTH design from a Handheld Light Source (HLS) as input, then connected it to ODC. Furthermore, it is connected with ODP, OTP, and ROSET. After building the design, the design was tested using the link power budget calculation method, which is 22.803 dB. As a result, the design has a total attenuation value of 18.4 dB which means it meets the standards and can be used. Next, analyze the problems that have the potential to cause macro bending interference in the FTTH home cable installation segment cable. The methods used in this macro bending problem are the HLS calibration method, Optical Power Meter (OPM) measurement, and Visual Fault Locator (VFL) macro damage detection. From this analysis, the results of macro bending will be obtained on the parameters of curvature diameter, the number of windings, and the search for critical angles of indoor cable macro bending. This macro bending in-home wiring installations affect the total attenuation value on FTTH. In addition, the macro bending of 3-winded indoor cables with a diameter of 0.5 cm on each winding still meets the standards in the FTTH design. However, for macro bending 5 windings with a diameter of 0.5 cm, each winding can cause the total attenuation value of FTTH to pass the Link power budget and ITU-T G984.
Fabrication and Implementation of a Microstrip Antenna for Digital Television Reception at UHF Frequencies Anjali, Putri; Yustini, Yustini; Adila Asril, Aprinal; Maritsyah Putra, Danda
International Journal of Wireless And Multimedia Communications Vol. 2 No. 1 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i1.78

Abstract

Television broadcasting has evolved from analog to digital technology, utilizing digital modulation and compression to efficiently transmit video, audio, and data signals. Antennas play a crucial role in this technology, with microstrip antennas being particularly notable for their compact size, ease of fabrication, and suitability for integration with other telecommunications equipment. The fabricated antenna measures 200 x 235 mm. By optimizing the Destructure Patch Element and Defected Ground Structure techniques, along with the addition of an Inset Feed, a wider bandwidth can be achieved, allowing for the reception of more digital television channels. At its working frequency, the fabricated antenna achieved a return loss of -36.8 dB, a bandwidth of 218.46 MHz, and a frequency range of 481.83 MHz to 700.29 MHz. The measured Voltage Standing Wave Ratio (VSWR) was 1.02, with a gain of 2.11 dBi at 538 MHz, 2.12 dBi at 546 MHz, 2.27 dBi at 626 MHz, and 2.3 dBi at 642 MHz. The radiation pattern was omnidirectional. Using a Vector Network Analyzer, the fabricated antenna was measured to have a return loss of -18.37 dB and a VSWR of 1.27. Additionally, digital TV broadcast testing was conducted, successfully receiving a strong and clear signal.
Effect of Coiling and Macrobending on Fiber To The Building (FTTB) Network Activation Yustini, Yustini; Nasrul, Nasrul; Asril, Aprinal Adila; Nugraha, Bintang Aulia
Brilliance: Research of Artificial Intelligence Vol. 4 No. 2 (2024): Brilliance: Research of Artificial Intelligence, Article Research November 2024
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v4i2.4674

Abstract

Fiber to the Building (FTTB) provides a fast and efficient service. However, the network quality may be affected by high attenuation at the termination (ONU) due to coiling, macrobending, and the length of patch cords, impacting network stability. This study aims to measure and analyze the effect of coiling and macrobending on patch cord cables of different lengths, as well as their influence on attenuation and FTTB network performance. The method includes simulating patch cord cables with lengths of 3m, 5m, and 10m. The tested treatments include conditions without coil, with coil, macrobending without coil, and macrobending with coil applied to the final termination before and after activating the FTTB network. Before activation, the lowest attenuation was 19.78 dB in the 3m cable without coil and macrobending, while the highest attenuation was 21.93 dB in the 10m cable with 5 coils (6cm curvature) and macrobending (0.8cm diameter). After activation, the lowest attenuation was 19.74 dB in the 3m cable without coil and macrobending, while the highest attenuation was 23.92 dB in the 10m cable with 5 coils (6cm curvature) and macrobending (0.8cm diameter). The test results show that the attenuation is affected by the number of coils, macrobending, and cable length.Damping increases with an increase in coils, cable length, and macrobending.
Co-Authors - Zurnawita Abdi Abdillah Ade Usra Berli Ahmad Dahlan Amelia Yolanda Anjali, Putri Aprinal Adila Asril Aprinal Adila.A Arsis Warman Asri, Aprinal Adila cania, marisa Deddy Prayama Dedi Tri Laksono, Dedi Tri Denisa Putri Maharani Dikky Chandra Fadli Fadilah Islami Firdaus Firdaus Firmansyah, Herian Hadria Octavia Hadria Oktavia Herry Setiawan Herry Setiawan Ifni Joi Lifwarda Lifwarda Maria, Popi Maritsyah Putra, Danda Marselina, Nadilla Meilisa, Mira Muchtara, Efendi Nasrul Nasrul Nasrul Nindika, Aprilia Nugraha, Bintang Aulia Popy Maria Popy Maria Putri Azizah Herwita Rahmatullah Hafizt Ramadan, Zardi Randhika Rianza Roza Susanti Sahid Ridho Silfia Rifka Siska Aulia Siska Aulia Uzma Septima Uzma Septima - Wiwik Wiharti Yulindon Zurnawita Zurnawita