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Amalia Eka Rakhmania
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Jurnal Jaringan Telekomunikasi
Published by Politeknik Negeri Malang
ISSN : 24070807     EISSN : 26546531     DOI : https://doi.org/10.33795
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
Jurnal Jaringan Telekomunikasi (Jurnal Jartel) merupakan jurnal repositori terbitan Program Studi Jaringan Telekomunikasi Digital, Politeknik Negeri Malang. Jurnal ini bertujuan menyediakan forum bagi para mahasiswa untuk berkontribusi dan menyebarluaskan karya baru inovatif yang berasal dari hasil penelitian di bidang Teknik Telekomunikasi, Informatika, Elektronika, Kelistrikan, maupun Kontrol dan Monitoring. Penerbitan dilakukan sebanyak empat kali per tahun dan seluruh artikel yang diterima dapat diakses secara online (akses terbuka).
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 256 Documents
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Analisis Perubahan Suhu Terhadap Panjang Gelombang Pada Media Fiber Optik Berstruktur Singlemode-Multimode Muhammad Adi Riswanto; Mochammad Junus; Yoyok Heru Prasetyo Isnomo
Jurnal Jaringan Telekomunikasi Vol 10 No 3 (2020): Vol 10 No 03 (2020) : September 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i3.103

Abstract

The increase in temperature on optical fiber results in an increase in the refractive index and Numerical Aperture, resulting in spread and absorption losses in the optical fiber. So it is considered necessary to discuss the effect of temperature changes on wave length in axially connected Singlemode-Multimode fiber optic media. Optical fiber connected to OSA is heated using a heater to show the wavelength value, before converted into color. Then convert it into CCT so as to produce a temperature value in kelvins. In this study, singlemode, multimode, singlemode-multimode fiber are used. The connection to each optical fiber and light source uses a Fusion Splicer and Visual Fault Locator with a wavelength of 660 nm and 680 nm, respectively. Results show that the higher the temperature, the farther the wavelength shift. The singlemode-multimode cable has the farthest shift value of 8.44 nm at 660 nm and 9.3 nm at 680 nm. Singlemode-multimode cable has the best measurement accuracy value. Because at a wavelength of 660 nm, the difference between the temperature values ??measured on the thermocouple and those calculated on the matlab has an average percentage of 0.54%. Meanwhile, at a wavelength of 680 nm it is 0.63%.
Pengaruh Perubahan Suhu terhadap Nilai Panjang Gelombang Fiber Optik yang Difungsikan Sebagai Sensor Suhu Alna Destra Shafira; Yoyok Heru Prasetyo Isnomo; Azam Muzakhim Imamuddin
Jurnal Jaringan Telekomunikasi Vol 11 No 1 (2021): Vol 11 No 01 (2020) : Maret 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i1.104

Abstract

In this study we can determine the effect of temperature on wavelength and frequency on fiber optic media by using a splitter by looking at the measured wavelengths when the optical fiber is heated using an aluminum intermediate as a heat sensor. With temperatures to be used ranging from 270?C to 400?C. The measurement was carried out using an Optical Spectrum Analyzer (OSA) device. From the temperature variations given, the conclusion is that the greater the temperature given, the farther the wavelength shift and the smaller the resulting frequency. The wavelength produced on the fiber optic splitter cable 1 to the fiber optic splitter cable 4 has almost the same wavelength value starting from a temperature of 270 ° C- 400 ° C. the difference occurs when the cable before the splitter and after the seplitter. The validity level in each splitter has a different persesn value such as the splitter has a validity value of 99.80%, splitter 2 has a validity of 99.72%, Splitter 3 has a validity of 99.72% and splitter 4 has a validity of 99.70%
Disain dan Implementasi Atenna BOW TIE Pada Frekuensi 750 MHz Untuk Aplikasi Penerima TV waluyo; Muhammad Syirajuddin; Moh Abdullah Anshori
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.112

Abstract

Many types of antennas work on the UHF band, including a 1 / 2l dipole antenna, Yagi-Uda array antenna, log periodic antenna, etc. The antenna of this type, its physical dimensions are adjusted according to the wavelength. The higher the working frequency, the shorter the wavelength, so the shorter the antenna's physical length. Bow tie antennas are often used as a TV receiver antenna, besides being relatively easy to manufacture, simple and significant. In this study, the antenna designed is a bow-tie antenna (butterfly) which works at a UHF frequency of 750 Mhz, arranged in an array, then fed with a 4: 1 balun (antenna impedance 300 ? to 75 ?), using a toroidal balun. With an air core in order to match the coaxial cable impedance of 75 ?. Antenna material from aluminum (solid). The research site was carried out in the Polinema Telecommunication laboratory. Antenna test results at an operating frequency of 750 Mhz show that the value of RL (return loss): - 11 dB, the coefficient of reflection G= 0.282, and the VSWR magnitude value = 1.786. The highest gain measurement occurs at the frequency: 567.25 Mhz (channel 33), which is 10.45 dB, and the average gain of the antenna is 3.19 dB. Because the VSWR price is less than 2, it can be said that the bow-tie antenna is still quite decent or good. It meets the criteria of an antenna parameter
Aplikasi Teknologi RFID pada E-Rekam Medis untuk Manajemen Posyandu Berbasis Web Tyas Aprilia; Nugroho Suharto; Lis Diana
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.3

Abstract

The current measurement process in posyandu generally done manually, i.e. when the user arrives, measurement will be taken then the data stored manually on paper. This system is considered inefficient because it’s need a long time, causing long queues and possibility of stacked data storage. From several problems indications that have been found, it’s necessary to develop a system that makes posyandu and midwives work quickly and accurately. Therefore, it’s necessary to develop technology that aims to create new system. This study uses Arduino as microcontroller and raspberry pi as server, there's node, inside the node there's an ultrasonic sensor to determine height, then load cell sensor to determine the user's weight. Data will be sent from Arduino Uno to NRF, on server there's NRF24L01, the server used a raspberry pi 3. The client server communication technique is designed for communication between nodes and servers so that data transmission errors are smaller. Based on  test results, it’s known that RFID has maximum detection distance limit of 3cm with a maximum detection delay of 2.9s. In medical e-record system, the load cell sensor has an error deviation of 3.48% and the ultrasonic sensor is 1.129%. The data can be displayed on the application includes the toddler's name, weight and height. Based on the test results, it‘s known that the accuracy of data communication has the best packet loss value of 0%, the worst packet loss value is 0.18%, the best delay value is 0.1s and the worst delay value is 4.1s.
Telemonitoring Kadar EC pH dan Suhu Penyehatan Tanah Tercemar Menggunakan Sensor Konduktivitas Berbasis Web Rahmana Burchan; Farida Arinie Soelistianto; Koesmarijanto Koesmarijanto
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.7

Abstract

Environmental pollution is the most prominent issue today, along with the increase in population, it causes a lot of garbage piles. A chemical reaction that produces certain gases causes the accumulation of solid waste to rot. The aim of this research is to create a web-based soil health telemonitoring  system using EC sensors, pH sensors, and the web. The results of pH and EC measurements are taken and entered into a database and will be displayed on a web page. The Wemos D1 Mini microcontroller will process the signal read by the sensor and display it on the LCD and Web pages in real time. The results of the application of the system are carried out by plugging the two sensors into the soil to be measured, the results of the data that I took on this land with more colomite were the average EC and the pH on the soil was higher than the soil that was not dominated or had little domination due to the soil that was given dolomite. more will increase the EC and pH of the soil. Based on the results of tests carried out by the EC Soil Sensor and the temperature here can detect soil conductivity with an average value close to 400 µs / cm and an average temperature close to 24-26 ° C because this sensor has calibrated automatically, the pH sensor can detect the pH on the soil evenly 0% error rate.
Rancang Bangun Sistem Pemesanan Jadwal Laundry Self Service Berbasis Website Menggunakan Protokol MQTT Rancang Bangun Sistem Pemesanan Jadwal Laundry Self Service Berbasis Website Menggunakan Protokol MQTT Salma Febrila; Nugroho Suharto; Lis Diana Mustafa
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.19

Abstract

In this study, customers had to queue in order to get their turn for laundry. So that users need a long time so it is less time efficient. This self-service laundry has a washing schedule booking service through the website making it easier for laundry service users without the need to queue. The method used in this study is an application for ordering laundry schedules via the website and an RFID tag as a card to access self-service laundry services. First, the user registers with customer service to get an RFID tag in the form of a smart card containing the user's identity and balance so that they can operate the washing machine. This research measures the accuracy of the weight sensor, the accuracy of the RFID distance, and the communication system between hardware and software. In the test results, the accuracy of the weight sensor obtained an error percentage of 0.28% to 1.69%. In testing the accuracy of the RFID distance, the reading of the RFID tag with a reader was obtained from a distance of 0 cm to 3 cm. In testing QoS (Quality of Service) using parameters delay, packet loss and throughput. In the delay test, the test results obtained are 0.057ms to 15.426ms. In the packet loss test it was obtained 0%. Whereas in the throughput test, the results obtained are around 0.337 Kbps to 6,758 Kbps.
RANCANG BANGUN SARUNG TANGAN PINTAR PENERJEMAH BAHASA ISYARAT INDONESIA (BISINDO) BERBASIS IOT wildana ahmad priadiyatna; Hudiono Hudino; Abdul Rasyid
Jurnal Jaringan Telekomunikasi Vol 10 No 4 (2020): Vol 10 No 04 (2020) : Desember 2020
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v10i4.21

Abstract

To make the general public can understand sign language, people who translate sign language are needed. Research with titled "Design of Smart Gloves for Indonesian Sign Language Translator (BISINDO) based on IoT" purpose to make easier for deaf people communicate daily with general public. Using Esp-32 microcontroller, flex sensor, and gyroscope sensor, to detect hand movements form sign language symbols. The results of translating symbols in the words will be display on smartphone application. The results of this study are in the form of smart gloves that can translate Indonesian Sign Language which is abbreviated as BISINDO. From the data of both right and left hand gloves, 26 letters and 5 different words can be combined. The results of mapping on right glove in letters A, B, L, M, W, Y, Z, have almost same flex sensor angle value, so that characters can appear, the mapping is carried out on MPU-6050 sensor. Tests were carried out 739 times on letter sign symbols and 180 times on word sign language symbols, the percentage of successful experiments on letters was 95% and the percentage of successful experiments on words was 73%.
Analisis Kinerja Signal Booster 4G LTE 1800 MHz pada Gedung AH Lantai 1 Politeknik Negeri Malang Wahyu Muhammad Afif; Aisah Aisah; Rachmad Saptono
Jurnal Jaringan Telekomunikasi Vol 11 No 1 (2021): Vol 11 No 01 (2020) : Maret 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i1.25

Abstract

With the increase in internet users in the current era, especially in office buildings, shopping centers, apartments or other high-rise buildings, the Base Transceiver System (BTS) coverage is not optimal due to the construction of concrete, bricks or steel frames that are dampening the signal. One of the solutions to improve the signal in an Indoor room is Signal Booster. The purpose of this research is to conduct an analysis of the quality of Signal Booster performance in the measurement of walk test and to analyze the potential placement of Signal Booster. The method used is a walk test that aims to determine the value of the received power 4G before and after the installation of Signal Booster. This aims to find out the best layout to be installed by Signal Booster. Based on the results of the research before installing Signal Booster, the room that has the lowest RSRP has an average value of -100dBm to -120dBm. While detelah given a Signal Booster has an average value of -60dBm to 80dBm. This states that Signal Booster can improve the signal quality of the Indoor room
Implementasi Metode Transformasi Biliniear Pada Filter Digital Infinite Impulse Response (IIR) Menggunakan Raspberry Pi Murni Sri Rahayu Islamiyah; Rachmad Saptono; Hadiwiyatno Hadiwiyatno
Jurnal Jaringan Telekomunikasi Vol 11 No 1 (2021): Vol 11 No 01 (2020) : Maret 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i1.28

Abstract

The process of sending information there is always interference or noise, the nature of noise cannot be eliminated but can be minimized. In this study, the author uses an IIR Digital Filter because the IIR filter has an impulse of infinite duration so that it can be matched with an analog filter which also has an impulse response of infinite duration. 1 and chebyshev type 2 on MATLAB. MATLAB code is used to create a filter design program according to the specifications that have been made. MATLAB Simulink is used to create a block filter design to be implemented on the Raspberry Pi. Raspberry pi is used as a device to process the filter. The results of running MATLAB code and also Simulink are compared to see if the implementation results are the same as the program results. The types of filters that are good for use in IIR digital filters are Butterworth filters and Chebyshev 2 filters because there is no ripple in the passband. The type of filter that is not good for use in digital IIR filters is the Chebyshev 1 filter. The effect of ripple changes on the order value is that the smaller the ripple value, the larger the resulting order value. The effect of changing the stopband attenuation is that the more the stopband attenuation, the smaller the resulting order.
Perancangan dan Analisa Antena Yagi 12 Elemen untuk Module Lora RFM95W pada Frekuensi 915 MHz Fajar Alviandi; Koesmarijanto Ko; Hendro Darmono
Jurnal Jaringan Telekomunikasi Vol 11 No 1 (2021): Vol 11 No 01 (2020) : Maret 2021
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jartel.v11i1.34

Abstract

The purpose of this research is to design a 12 element Yagi antenna so that it can be applied to the Lora RFM95W module which works at a frequency of 915 MHz, to find the effect of signal reception power on the Lora module. In this study, the implementation of the yagi antenna and built-in antenna was tested in line of sight and non-line of sight. The 12-element yagi antenna test results obtained a Return Loss of -17.8 dBm and a VSWR value of 1.29. The average gain obtained is 5.6 dB. And the results of the implementation of the LOS state for a distance of 200 meters the yagi antenna has an RSSI value of -98 dBm, while the built-in lora antenna has a power level of -109 dBm. The second test results in a Non-LOS (Wall Obstruction) state at a distance of 25 m the built-in antenna has an RSSI value of -95 dBm, while the 12 element yagi antenna is -77 dBm. The test results in Non-LOS (Tree Obstacle) at a distance of 25 m the built-in antenna has an RSSI value of -84 dBm, while the 12 element yagi antenna is -78 dBm. So that in the implementation of the 12 element yagi antenna and the built-in antenna, it can be concluded that for the RSSI data, the directional yagi antenna is better than the omnidirectional lora RFM95W antenna built-in antenna.

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