Determination of gyro frequency from critical frequency measurements over Parit Raja, Malaysia

• Main Authors: Zain A.F.Mohd., Bin Abdullah S., Rhazali Z.A.
• Other Authors: 23494494500
• Format: Conference paper
• Published: 2023
• Subjects: critical frequency; equatorial region; gyro frequency; Graphic methods; Ionosphere; Critical frequencies; Equatorial regions; Geomagnetic equator; Ionograms; Malaysia; Gyroscopes

The critical frequencies of the ionosphere are observed from ionograms to determine the gyro frequencies. The ionograms are obtained from the Parit Raja station using an ionosonde at latitude 1�52' N and longitude 103�48' E which is close to the geomagnetic equator at geographic latitude 5�N. Preliminary results show that the gyro frequencies obtained are between 0.2 MHz and 1.4 MHz. � 2013 IEEE.