Design a radio receiver for solar activity observation in VLF band


  • Ahmed Al Banna Department of Information and Communication Engineering/ Al-Khwarizmi College of Engineering/ University of Baghdad / Iraq



Solar activity monitoring is important in our life because of its direct or indirect influence on our life, not only on ionospheric communications. To study solar activity, researchers need measuring and monitoring instruments, these instruments are mostly expensive and are not available in all universities. In this paper, a very low frequency radio receiver had been designed and implemented with components available in most markets to support the researchers, college students, and radio astronomy amateurs with a minimum input voltage less than 100µV, an output voltage less than 135 m V with no distortion and an overall gain of 34dB. A comparison had been done between two circuit structures using a workbench software program and experimentally done in the lab. Two antennas were experimentally tested and a loop antenna was chosen. The whole system was connected and tested to receive signals in the Lab and monitored on computer using HDSDR software program. Another experiment done outside the lab (at home), and the result was not good because of many high level interference noises.



Download data is not yet available.


Suryadi, M. Abdullah, H. Husain,”Development of VLF Receiver for Remote Sensing of Low Atmospheric Activities”, International Conference on Space and Communication, Port Dickson, Malaysia, 2009.

W. P. Wah, M.Abdullah, A. M. Hasbi, S. A. Bahari,” Development of A VLF Receiver System for Sudden Ionospheric Disturbance (Sid) Detection”, IEEE Asia – Pacific conference on Applied Electromagnetics (APACE 2012), Melaka, Malaysia, 2012.

O.V. Yadrennikova ,A.S. Poletaev , A.G. Chensky ,”Influence of Solar Flares on VLF Radio Waves Propagation over JJI- Irkutsk Path” ,14th International Scientific – Technical Conference APEIE ,Novosibirsk , Russia,2018.

O. Crista, P. Dolea, P. V. Dascal , T. Palade ,” Influence of Sun Elevation , Azimuth and X- ray Bursts on Long Distance VLF Radio Propagation”, 10th International Conference on Communications(COMM) , 2014.

P. Dola , O. Cristea , V. Dascal ,T. Palade,”4th of January 2011 Solar Eclipse Induced Disturbance in VLF Radio Waves Propagation”,10th International Conference on Telecommunication in Modern Satellite Cable and Broadcasting Services(TELSIKS) , Serbia , 2011.

H. Dahlgren, T. Sundberg, A. B. Collier, E. Koen, S. Meyer “Solar flares detected by the new narrowband VLF receiver at SANAE IV”, South Africa Journal of Science,Vol. 107,No. 9/10,2011.

R. Boylestad and L.Nashelsky, Electronic Devices and Circuit Theory, 4thed ,USA ,: Prentice Hall International ,1987,pp389.




How to Cite

Design a radio receiver for solar activity observation in VLF band. (2023). Al-Khwarizmi Engineering Journal, 19(1), 57-69.