Malabar Radio Station was a VLF radio telegraphic transmitter in Malabar, Indonesia (coordinates: -7.1163°N 107.6062°W), for a radio link to the Netherlands. It used one of the most powerful arc transmitters ever built, which had a power of 2400 kW. Malabar Radio Station used a couple of parallel wires spun about 2 km long between two mountain ridges as an antenna.[1]