How wireless beacons guide ships in the fog
The Marconi invention can determine distance of the ship from the beacon to steer the vessel into a Harbour during foggy weather. The shore transmitter operates on wave-lengths of about 60 centimetres, and its signals are received in two ways on board ship, one by headphones or loud-speaker, and the other by the movement of a needle on the galvanometer-dial fixed in a prominent postion before the navigator
Picture No
10724317
Media ID
46095798
Size
3803px x 5412px
(3.6MB)
Credit
© Illustrated London News Ltd/Mary Evans
Source
Illustration by George Horace Davis in Inside Knowledge'
Pick your License
Aerials Beacon Beacons Destinations Dial Foggy Galvanometer Horace Indicators Lengths Marconi Navigate Navigator Receiver Signals Steering Technologies Telegraphy Transmitter Visibility Wireless
Features In These Collections
> Contributors > ILN
