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All Journal Journal of Applied Information, Communication and Technology (JAICT) SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Jurnal Pengabdian Masyarakat Borneo Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Jurnal Riset Rekayasa Elektro Jurnal Abdi Insani Journal of Telecommunication, Electronics and Control Engineering (JTECE) Jurnal INFOTEL Jurnal SINTA: Sistem Informasi dan Teknologi Komputasi
Shinta Romadhona
Institut Teknologi Telkom Purwokerto
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering 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 Materials Science & Nanotechnology Mathematics Social Sciences Other

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Journal : Jurnal INFOTEL

 1 
Analysis of Utilization Bandwidth and Power Transponder Extended C-Band On The Satellite Telkom 3S VSAT SCPC Shinta Romadhona; Intan Rizqiyani Nur Faizah; Imam MP Budi
JURNAL INFOTEL Vol 12 No 1 (2020): February 2020
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v12i1.461

Abstract

On satellite communication systems, bandwidth and power are limited and expensive resources. Optimization of bandwidth and power utilization in Telkom 3S Satellite could be achieved if the ratio value of the percentage of bandwidth and power is 1: 1. The optimization conditions are influenced by the calculation of the link budget, the use of appropriate modulation and FEC settings. QPSK and 8-PSK modulation techniques with FEC used are ¾, 7/8, and 0.9 with a 9 m Hub antenna and VSAT SCPC with a diameter of 2.4 m and the same data rate of 1024 kbps. Based on the results of this research, the lower the modulation technique used, the lower the ratio of bandwidth and power. The most optimal FEC value to be used is 8-PSK modulation at FEC 0.93 with the resulting percentage is 97.25%, where the total carrier bandwidth generated is 93.415, and the amount of carrier power is 96.05, while the worst is modulation QPSK is at the FEC of 3/4 by producing a percentage of 35% which falls into the limited power category. Thus, the most appropriate modulation used on the Telkom 3S Satellite is the 8-PSK modulation with an FEC of 0.93.
Analysis the impact of sun outage and satellite orbit at performance of the telkom 3S satellite communication system Vi Bauty Riska Utami; Imam MPB; Shinta Romadhona
JURNAL INFOTEL Vol 13 No 3 (2021): August 2021
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v13i3.626

Abstract

Satellites of communication are located at altitude of thousands kilometers above the earth's surface, so the signal is transmitted by satellite to earth station is very susceptible to interference. Every March and September equinox or when the sun crosses the Earth's equator for several days, earth station occurs a naturally interference called by sun outage. At this time, satellite and the sun reach the closest distance because satellite's position is same direction with the sun. This interference makes the signal received by earth station weaken and even disappears due to temperature noise which increases drastically. Loss of signal on the downlink side caused by noise greatly affects to the performance of satellite communication system. This study aims to analyze the effect of sun outage and satellite orbit to determine sun outage period on the performance of Telkom 3S satellite communication system. The results obtained that indicate the signal quality is represented by degradation in the Carrier to Noise Ratio (C/N) from 14,777 dB to 6,0 dB, Energy bits per Noise Ratio (Eb/No) from 11,515 dB to 2,738 dB, and increase the Bit Error Rate (BER) from 8,29×10-7 to 11,08×10-3. In addition, sun outage makes lost of satellite communication traffic and affecting link availability to 99,855324%. Meanwhile, the result from satellite orbit calculation for sun outage period based on ITU-R S.1525 standard and based by satellite’s handbook. Keywords – Telkom 3S satellite, sun outage, C/N, Eb/No, BER, link availability, sun outage period.
Co-Authors Alfataniah Nur Fajrina Alia, Diana Ayuningtyas, Retno Dwi Br Perangin-angin, Syifa Lestari Deva Ourelia Ayuninda Galuh Kartikasari, Galuh Imam MP Budi Imam MPB Indah Permatasari Intan Rizqiyani Nur Faizah Jafaruddin Gusti Amri Ginting M. Panji Kusuma Praja Maya Zulfida Melinda Br Ginting Muhammad Panji Kusuma Praja Ni’amah, Khoirun Pradana, Zein Hanni Prasetyo Yuliantoro Raditya Artha Rochmanto Richi Riyan Sevia Indah Purnama Sigit Pramono Solichah Larasati Surbakti, Hairunisa Br Vi Bauty Riska Utami Zen, Nur Afifah Zulfida, Maya