Successful Long Distance Conversation

Radio Record, Volume II, Issue 45, 24 May 1929, Page 35

Successful Long Distance Conversation

N view of the backwardness of British attempts at wireless telephony to Australia, the Australian Press Association invited Dr. Koomans, chief of the Dutch Radio Laboratory, to indicate the factors of success in the repeated Dutch conversations between Holland and Java, and between Holland and Sydney. Dr. Koomans ays his station used a directional beam with wavelengths of 18.4 and 888 metres, and a power of thirty-two kilowatts. Recently outstanding success had been achieved in the daytime with a@ new transmitter on 16.3 metres. There was no fading on any of the wavelengths, and no atmospherics on the two lower ones. He admits that it is virtually impossible for the Dutch station to get efficient communication at night.