Radio Transmission Detection Using Doppler in UHF Frequency Band
Submitted : 2022-01-13, Published : 2022-02-11.
Abstract
The direction finder of a radio transmitter is a device that functions to find and determine the direction of a radio transmitter that works in the Ultra High Frequency (UHF) band. UHF frequency used is in the range of 420 - 440 MHz. The concept of Doppler radio is used as a method to determine the direction a radio transmitter is located. Radio Doppler use four receiving antennas which are installed at a certain distance so that it can produce a difference in frequency (Doppler) on each radio antenna because of the difference in the angle of the detected signal. The direction of the incoming signal will be displayed on a set of 16 LEDs and each LED will represent the direction of the incoming angle of 22.5 degrees. The detected frequencies are 422,580 MHz and 429,980 MHz originating from the UHF transmitter with 100mW of power and amplified with a radio frequency amplifier of 3 Watts power. The results show that the frequency of 429,980 MHz was detected with a maximum detectable distance of 1500 meters. The frequency of 422,580 can be detected with a maximum distance of 800 meters. This radio direction finder is can be used to find radio signal in UHF band frequency 420-440 MHz. The direction of the radio transmitter location is simply show in group of led’s as a direction detector.
Keywords
Full Text:
PDFReferences
Andrej Novak. (2005). Radio Direction Finding in Air Traffic Services. Promet-Traffic-Traffico, 17(5), 273-276
Bin Dong, Guojie Yang, Tie Liang. (2014). Research and realization of handheld radio direction finding communication system. Computer modelling & new technologies 2014 18(5), 283-287
David Poirier, Quinot. (2015). Design of a radio direction finder for search and rescue operations estimation, sonification, and virtual prototyping. Universite pierre Marie Curie Paris VI, 2015.
H. W. Silver. (2014). The ARRL Handbook for Radio Communications, Newington: American Radio Relay League
Dermawan. D. (2017). Pendeteksi arah dan amplitudo pemancar radio VHF (Very High Frequency) 146 MHz. Prociding Seminar Nasional ReTII ke 13- STTNAS Yogyakarta (pp. 41- 48)
Gething, P.J.D. (2006). Radio direction finding and superresolution. The institution of Engineering and Technology
Suhartini Sri. (2008). Study of antenna elevation and altitude for HF radio communication. Dirgantara News Journal, 9(3), 75 – 78.
Jakpar M.J, Za’bah N.F, Ismail A.F & Hasan M.K. Exploitation of Radio Direction Finder in the design of a UHF Transmitter Locator System. Indian Journal of Science and Technology 9(25), 1-5.
Mike Kossor (1999) A digital commutating filter, Crestone technical books.
Mike Kossor (1999) A Doppler radio direction finder, part 1, Crestone technical books, 1999.
Mike Kossor (1999) A Doppler radio direction finder, part 2, Crestone technical books.
Suparman, Wafiuddin & Homam, Mariyam. (2019, November). Development of transmitter and receiver for fox hunting activity. Conference paper in AIP Conference Proceedings. 2173(1), 020020.
Rustamaji Rustamaji, Kania Sawitri, Ghaniyman Fuady. (2019). Radio Direction Finder pada HF Band sebagai elemen dari Passive radar. ELKHA Jurnal Teknik Elektro Universitas Tanjungpura, 11(2), 107 - 114
Kristiyana S. (2015). RF signal direction detector system using a doppler antenna. Journal of Techno Scientia, 7(2), 192 – 201
Kristiyana S., Susanto A., Sunarno & Hidayat R. (2017). The radio frequency source position finder based on the triangle centroid algoritm. International Journal of Information Technology and Electrical Engineering (IJITEE), 1(1), 13 -18
M. C. E. Stieber. (2012). Radio direction finding network receiver design for low-cost public service applications. California Polytechnic State University, San Luis Obispo.
T. Svantesson and M. Wennstrom. (2011). High-resolution direction finding using a switched parasitic antenna. Proceedings of the 11th IEEE Signal Processing Workshop on Statistical Signal Processing, pp. 508-511.
Article Metrics
Abstract view: 357 times
Download : 274 times
This work is licensed under a Creative Commons Attribution 4.0 International License.
Refbacks
- There are currently no refbacks.
