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The first field telephones had a battery to power the voice transmission, a hand-cranked generator to signal another field telephone or a manually-operated telephone exchange, and an electromagnetic ringer which sounded when current from a remote generator arrived. This technology was used from the 1910s to the 1980s.
The first US armoured vehicles to have tank phones attached to them were M4 Shermans deployed during the 1943 Bougainville islands campaign, where tank-crews mounted field telephones to the rear of their tanks housed typically in ammunition cans that were linked to the tank's internal intercom system. A variation on this had the phone connected ...
Some components used in S-Phone. Wireless Set No. 38 – Manpack radio set, also produced as an AFV version for use in armoured vehicles to allow direct communication with infantry. Wireless Set No. 38 Mk. III – Late WWII infantry radio. [9] Wireless Set No. 42 – Experimental general purpose vehicle/manpack HF set, tropicalised, 10W, 1.6 ...
Motorola SCR-300 circa 1940. The SCR-300, designated AN/VRC-3 under the Joint Electronics Type Designation System, was a portable frequency modulated (FM) radio transceiver used by US Signal Corps in World War II.
V-number tonnage drive manufacturer. type used with publication associated with V-1 trailer: 1-ton: 1 axle: unknown: antenna mount: PE-141: AN/CRN-2 V-2 trailer
The SCR-694 is a portable high frequency two way radio set that was used by the U.S. military during World War II.The SCR-694 provides transmission and reception of AM radiotelephony and MCW or CW radiotelegraphy within the frequency range of 3.800 to 6.500 MHz.
WW2 Battlefield Communications. Osprey Publishing Ltd 2010. ISBN 978-184603-847-1; Niccoli, Riccardo. Befehlspanzer. RN Publishing 2014. ISBN 978-88-95011-08-0; Hart, Stephen. Panther Medium Tank. Osprey Publishing Ltd 2003. ISBN 978-1-84176-543-3; Chamberlain, Peter. Encyclopedia German Tanks of World War Two. Arms & Armour 1999. ISBN 1-85409 ...
S-phone MK-IV, 1943 The S-Phone system was a UHF duplex radiotelephone system developed during World War II for use by Special Operations Executive agents working behind enemy lines to communicate with friendly aircraft and coordinate landings and the dropping of agents and supplies.