Title :
Radio Transmission on 230- and 400-Kv Lines in Sweden [includes discussion]
Author :
Rathsman, B.G. ; Parding, S. ; Enstrom, C.A.
Author_Institution :
ASSOCIATE MEMBER AIEE, Swedish State Power Board, Stockholm, Sweden.
Abstract :
A new method of suppressing radio interference caused by high-voltage power lines has been investigated in Sweden. It consists of transmitting the radio program directly from the disturbing power line, which thus acts as a transmitting antenna. To feed a line 100 miles long a transmitter with an output of about 50 watts and a frequency between 150 and 200 kc per second is required. In this paper the electrical details of the line radio are described and particulars are given of the results obtained from measuring the signal and interference voltages. The experiments were carried out jointly by the Swedish State Power Board and the Royal Swedish Board of Telecommunications.
Keywords :
Antenna measurements; Attenuation; Capacitors; Conductors; Electromagnetic interference; Frequency; Petroleum; Radio transmitters; Switches; Voltage;
Journal_Title :
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
DOI :
10.1109/AIEEPAS.1954.4498927
