A portable radio-telephone station

Title (Dublin Core): A portable radio-telephone station
Subject (Dublin Core): en Technology; en Communication
Article Title and/or Image Caption (Dublin Core): This "Central" Lives in a Truck
extracted text (Extract Text): A RADIO-TELEPHONE outfit that travels in a trunk makes
it possible to set up a sending station anywhere and chat
with a passing airplane thousands of feet overhead, providing,
of course, the airplane has a wireless tele-
‘phone on board.

‘The radio-telephone came just too late to
be tried out in battle. It is an adaptation
of the principle of the wire telephone to
‘wireless conditions. As in the familiar tele-
phone, there is a diaphragm and a capsule
of carbon granules; but, instead of varying
theintensity of a current passing over a wire,
the radio transmitter varies the strength of
a stream of electro-magnetic waves.
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): Interwar period
Date Issued (Dublin Core): 1919-07
Is Part Of (Dublin Core): Popular Science Monthly, v. 95, n. 1, 1919
pages (Bibliographic Ontology): 35
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
Archived by (Dublin Core): Davide Donà; Marco Bortolami (editor)
Spatial Coverage (Dublin Core): United States of America