Influence of Solar Flares on VLF Radio Waves Propagation Over JJI - Irkutsk Path

Yadrennikova, O.V.; Poletaev, A S; Chensky, A.G.

doi:10.1109/apeie.2018.8545085

Cited by 1 publication

(2 citation statements)

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“…The philosophy behind designing a very low frequency (VLF) receiver with a bandwidth of 10 to 40 KHz is to monitor the flare event indirectly by receiving the signals of distant VLF transmitters worldwide that are used for marine navigation and studying natural phenomena [1]. Studying solar flares is important because they have an effect on devices and infrastructures in this era [2,3]. These signals propagate in ground wave and sky wave paths [4].…”

Section: Introductionmentioning

confidence: 99%

“…By receiving a distant station (sky wave propagation) at day time from 10 to 40 KHz using a VLF radio receiver, it is an indirect indicator that a flare has occurred. In previous works [1][2][3][4][5][6], the circuits were designed using high cost components, software programs, and antenna systems, which is a problem facing researches in countries like Iraq, so the novelty in this paper is to design a VLF receiver from components available in the Iraqi markets.…”

Section: Introductionmentioning

confidence: 99%

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Design a radio receiver for solar activity observation in VLF band

Banna¹

2023

alkej

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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.

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