Author:
Ramadhan S.,Hidayat T.,Suryana J.,Romadhoni A.,Kurniasari M.
Abstract
Abstract
A new VGOS (VLBI Global Observing System) radio telescope will be constructed at Bosscha Observatory Lembang, West Java, in cooperation between Shanghai Astronomical Observatory (SHAO) and Institut Teknologi Bandung. One of the preparation steps is to conduct RFI (Radio Frequency Interference) measurements to obtain the RFI environment from the vicinity of the observatory. In this work, we report preliminary measurements of the RFIs that were done for several days in August and September 2023. Instruments used includes: A-INFOTM LB-20180 horn antenna, Wright TechnologiesTM low noise amplifier, and AaroniaTM Spectran V5 80200 OEM spectrum analyzer. The frequency range of 2.0 - 18.0 GHz is targeted referring to VGOS frequencies. Measurements in one day are carried out for about 24 hours in eight cardinal directions and two polarizations. The results and analysis are presented in spectral power flux density plots.
Reference7 articles.
1. Recent development of radio astronomy at the Bosscha observatory;Hidayat;Proceedings of the 11th Asian-Pacific Regional IAU Meeting, Chiang Mai, Thailand,2013
2. International Telecommunication Union 2016;ITU Radio regulations Chapter I Section VII Article 1.166
3. Radio frequency interference measurements in Indonesia: a survey to establish a radio astronomy observatory;Hidayat;Exp. Astron,2014