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Construction of two VLF receivers to monitor Sudden Ionospheric Distrubances (SID) from Solar Flares
| Content Provider | Semantic Scholar |
|---|---|
| Author | Marbouti, Marjan Ghomi, Mehdi Khakian Kabir, Amir |
| Copyright Year | 2011 |
| Abstract | In this paper we discuss the construction of two VLF receivers built to monitor Sudden Ionosphere Disturbance (SID). The first VLF receiver was built at Tehran University, the second at the Amir Kabir University, Iran. Both receivers were tuned to the Naval VLF transmitter TBB, located at Bafa, Turkey. It took two attempts to come up with the final antenna and receiver design to filter out the large amount of urban noises, and to stabilize the receiver to the TBB Naval transmitter. The first antenna built was an octagon loop antenna 80 cm in diameter; the second antenna was a square loop of cm. Our first receiver relied on external capacitors at the octagon loop; the second receiver uses an internal capacitor and variable resistors part of the receiver design, which could be tuned specifically to the TBB transmitter. Our goal was to observe the X-ray solar flares as well as the effects of Sunrise and Sunsets in the region. So that, after receiving the TBB signal, we could compare the receiving signal’s quality received of the octagon antenna and filter, to that of the receiver with the internal filter using the square loop antenna. Our future use of these VLF receivers will be to survey and study different phenomena such as earthquakes [Hayakawa, 2010] as well as SID events from solar flares. The original designs for both these receivers come from Percival Andrew’s book ‘ |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.aavso.org/files/Radio%20Telescopes%20version%203.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
