Three different 5 KW transmitters aee described in the Handbook of Technical Instruction for Wireless Telegraphists. They are called the "Plain Discharger Set" , the "Battleship Set" , and the "Special Set". The Plain Discharger used an ordinary spark gap ,in a box The Battleship Set used a synchronous rotary gap in a large, heavy, teak box. Radio operators said that the Titanic was the first ship to receive a synchronous gap transmitter. It was the only ship that produced a musical note. The rotary gap for the Special Set was encased in a round aluminum case.
A detailed article on the radio equipment on the Titanic is availanle in the Vol. 25, 2012 issue of the Antique Wireless Association Review.
Power output: 5,000 watts
Frequency range: 300 to 1000 metres or 1200 metres or 2500 metres
Spark frequency: 400 or 800 Hz
|This image describes the principal parts of the 5 kw Marconi "Special" set . Click on thumbnail to enlarge. ( Image courtesy Handbook of Technical Instruction for Wireless Telegraphists).|
Contributors and Credits:
1) Lewis Bodkin <05bodkin555(at)gmail.com>
2) Handbook of Technical Instruction for Wireless Telegraphists).