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2016 | 40 | 23-33
Article title

Current Situation of Radio Frequency Interference (RFI) Profile at Outdoor and Indoor Sites of Faculty of Applied Sciences, UITM, Malaysia

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EN
Abstracts
EN
This Radio Frequency Interference (RFI) study is currently one of a main sub-research in radio astronomy in Malaysia. The main objective of this monitoring is to test ‎and qualify the potential of radio astronomical sources that can be observed in Malaysia ‎generally. Analysis process focuses at indoor and outdoor of Faculty of Applied Sciences, UITM Shah ALAM, Malaysia (latitude: 03°06.534’N, longitude: 101°50.396’E). There are three mobile network communications that operate at the upper band frequency of 1800MHz, which are Maxis (1805-1830 MHz), Celcom (1830-1855 MHz) and Digi (1855-1880 MHz) for GSM/LTE network. We observed that both sites having the highest and second highest peak at the same frequency of 420 MHz and 1835 MHz with the same source, which were due to mobile application followed by the lowest peak due to radio navigation satellite. We verified that the source of RFI of 1835 MHz at the Faculty of Applied Sciences may come from Celcom mobile telecommunication network signal because there is transmitter on top of two Celcom towers. This observation must be continuously done to ensure that RFI level does not increase drastically and to ensure that allocation spectrum band that was reserved for radio astronomy activities was always protected.
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Year
Volume
40
Pages
23-33
Physical description
Contributors
author
  • MARA University of Technology, 40450, Shah Alam, Selangor, Malaysia
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
author
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
author
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
author
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
author
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
  • Department of Science and Technology Studies, University of Malaya, 50603, Kuala Lumpur, Malaysia
author
  • Institute of Astronomy, Wolfgang-Pauli-Strasse 27, Building HIT, Floor J, CH-8093 Zurich, Switzerland
References
  • [1] Abidin Z.Z., Radio Astronomy Research in Malaysia: Past, Present and Future., in Proc. of Space Science and Communication. 2009. p. 179-181.
  • [2] Anim, N., et al. Radio frequency interference affecting type III solar burst observations. in 2012 NATIONAL PHYSICS CONFERENCE: (PERFIK 2012). 2013: American Institute of Physics.
  • [3] Z.S. Hamidi, N.N.M.Shariff, and R.Umar, Influence Factors of Radio Frequency Interference (RFI) for Solar Radio Astronomy Purpose at National Space Centre, Malaysia Thailand Journal of Physics, 2012, 3(2): p. 6.
  • [4] Roslan Umar, et al. Population density effect on radio frequencies interference (RFI) in radio astronomy. in ICPAP 2012. 2012. Bandung Indonesia: AIP Conference Proceedings.
  • [5] Z.S. Hamidi, et al., Indication of radio frequency interference (RFI) sources for solar burst monitoring in Malaysia. AIP Conference Proceedings, 2012, 1454: p. 43.
  • [6] Abidin, Z.Z.e.a., Investigation of Radio astronomical windows between 1 MHz-2060 MHz in University of Malaya. New Astron., 2009, 14(6): p. 579-583.
  • [7] Hamidi Z.S., et al. Preliminary analysis of investigation Radio Frequency Interference (RFI) profile analysis at Universiti Teknologi MARA. 2011: IEEE.
  • [8] Z.S. Hamidi, et al., Coverage of Solar Radio Spectrum in Malaysia and Spectral Overview of Radio Frequency Interference (RFI) by Using CALLISTO Spectrometer from 1MHz to 900 MHz. Middle-East Journal of Scientific Research, 2012. 12(6): p. 6.
  • [9] Z.S. Hamidi, et al., Designing and Constructing Log Periodic Dipole Antenna to Monitor Solar Radio Burst: e-Callisto Space Weather. International Journal of Applied Physics and Mathematics, 2011. 2(3): p. 3.
  • [10] Z.S. Hamidi, et al., Signal Detection Performed by Log Periodic Dipole Antenna (LPDA) in Solar Monitoring. International Journal of Fundamental Physical Sciences, 2012. 2(2): p. 32-34.
Document Type
article
Publication order reference
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YADDA identifier
bwmeta1.element.psjd-96e9cfbf-7fdd-416c-b496-1885fdccad78
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