1950 Volume 1 Issue 1 Pages 77-80
A handy wind-direction and speed robot using carrier wave of 416 M. C. modulated by audio-frequency through ordinay L-C oscillation is designed and tested for the purpose of southern island use. Also the temperature effect upon the transmitter and receiver is investigated for the range of -23°to 20° with the results that the equipment may be used with tolerable accuracy for normal conditons.