Regiment soldiers use walkie-talkie
during advance in Ortona, Italy,
21 December 1943. Carrying it
is Lance Corporal W. D. Smith.
Talking into it is Private W.
by Terry F. Rowe. Department of
National Defence / National Archives
of Canada, PA-163932.
Signals units operated wireless and telephone
equipment to allow the various parts of
the army to communicate with each other
in the field. Divisional signals units contained
three or four companies/squadrons, depending
on the type of division, with a total strength
of about 28 officers and 700 other ranks.
Four main types of wireless sets were used
in action. The 18 set, usually used for
signals between company and battalion headquarters,
weighed about 30 lbs and had a maximum range
of five miles. The No. 38 had a shorter
range, about 2 miles, weighed somewhat less,
and was used within the company and for
communication with supporting tanks. Both
were typically carried in a pack by the
infantry. The No. 19 and 22 sets, meanwhile,
had longer ranges and were fitted into vehicles
such as tanks or universal carriers. The
No. 19, used by armoured units, had three
channels: the A set for communication with
headquarters, B for use between the four
tanks of a troop, and C for internal communication
within the tank. Finally, the No. 22 set
was similar to the No. 19 with slightly
longer range and was usually used between
formation headquarters or in artillery units.