Page 257 - The Secret War in the Italian front in WWI (1915-1918)
P. 257
CHAPTER ELEVEN
11.5 AIR FORCE AND GEO-TELEGRAPHY CODES
aIr force radIo coMMunIcaTIons
After the first endeavours in 1915, the number of radio-equipped aircrafts grew steadily, despite
the obstacles caused by the limitation of the available radio spectrum due to the use of spark
transmissions and the problems encountered in the allocation of radio channels. Another obstacle
to growth came from the long delivery times of the manufacturers and especially of the Italian
company Marconi, which produced the renowned on-board transmitter, the ‘Marconcina’. To
allow communication also from strategic reconnaissance or bombing aircrafts flying well beyond
11.15 The observation post on an aircraft, with a T.Av. radio station (ISCAG Museum)
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