The range of the smallest set was about a mile, while that of the largest was about twenty-five miles. These are very short ranges but enough for army purposes where messages are sent from the trenches through one operator after another or relayed until they reach headquarters.
As I said before the purpose of the wireless stations is to cooperate with airplanes and balloons and aid in the control of artillery fire. So in the months that followed our work was to go out on the firing range with the batteries and to cooperate with the airplanes and balloons.
I had been warranted as Corporal in charge of the 2nd Battalion Radio Detail. You know, I suppose, that a regiment consists of two battalions, each battalion of three batteries, each battery of four guns and the complement of about 200 odd men necessary for their action. So my detail was responsible for coordinating the eyes, that is the airplanes and balloons of the three batteries in the second battalion, with the guns.
Possibly you may wonder why it is necessary for airplanes to work with the batteries and