Measurement technique in radio frequency interference (RFI) study for radio astronomy purposes = [Teknik pengukuran dalam kajian gangguan interferen radio (RFI) bagi tujuan astrono...

by Umar, R., Sabri, N.H., Ibrahim, Z.A., Abidin, Z.Z., Muhamad, A.
Published 2015

Earth's geomagnetic response to solar wind changes associated with solar events at low latitude regions at the TRE MAGDAS station

by Umar, R., Zafar, S.N.A.S., Sabri, N.H., Jusoh, M.H., Yoshikawa, A., Abe, S., Uozumi, T.
Published 2021

Implementation of Frequency Drift for Identification of Solar Radio Burst Type II

by Afandi, N.Z.M., Abidin, Z.Z., Umar, R., Sabri, N.H., Ibrahim, Z.A., Monstein, C.
Published 2016

Effect of humidity on tropospheric received signal strength (RSS) in ultra-high frequency (UHF) band

by Roslan, U., Mat, R., Sabri, N.H., Ahmad, S., Zafar, S.N.A.S., Omar, A., Mustafa, W.A.
Published 2020

A statistical analysis of the relationship between Pc4 and Pc5 ULF waves, solar winds and geomagnetic storms for predicting earthquake precursor signatures in low latitude regions

by Umar, R., Syed Zafar, S.N.A., Sabri, N.H., Jusoh, M.H., Yoshikawa, A., Abe, S., Uozumi, T.
Published 2021

Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio]

by Umar, R., Sulan, S.S., Azlan, A.W., Ibrahim, Z.A., Wan Mokhtar, W.Z.A., Sabri, N.H.
Published 2015

Determination of Radio Environmental Level in Hydrogen (HI) Band Spectrum by using Kurtosis Analysis

by Zafar, S.N.A.S., Umar, R., Sabri, N.H., Ibrahim, Z.A., Kamarudin, M.K.A., Endut, A.
Published 2017

Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ

by Umar, R., Sabri, N.H., Abidin, Z.Z., Ibrahim, Z.A., Azid, A., Juahir, H., Toriman, M.E., Kamarudin, M.K.A.
Published 2015