2.5.0 spase://IUGONET/Observatory/RISH/GRBR/PTK GNU radio beacon receiver (GRBR) station at Pontianak 2016-07-21T00:34:00 This station is one of the GRBR network observatories, located at Pontianak in Indonesia (0.00S, 109.37E, 4m MSL) at the equator. In this site, the GNU radio beacon receiver has been installed in order to measure the ionospheric disturbances related to middle-upper atmospheric coupling processes. spase://IUGONET/Person/Mamoru.Yamamoto PrincipalInvestigator spase://IUGONET/Person/RISH.Metadata.Management.Group MetadataContact Earth.Surface WGS84 -0.0030 109.366 4 2000-01-01T00:00:00