The squad consisted of an optical measurement section and a radar section.
The troop was fixedly grouped or mobile and was part of the heavy 15.2 and 21 cm batteries. The fixed squad was grouped together with the assembly site in a bunker in the middle of the battery. The mobile up to 25 km outside the battery.
The squad measured direction and distance to the target at sea.
The values were transferred to a central instrument where they were processed into target values for the pieces.
The values were transmitted electronically from the fixed squad
while the values from the variable were read in orally.
The measuring station troop remained in the Coast Artillery into the 1970s when it was replaced by the modern Arte 719 system.
Optical measurement department
To measure direction and distance, a 4-meter base gauge was used for triangulation measurement. The technology was based on the human ability to see stereoscopically. A skilled measuring soldier could measure targets at 2,000 times the base of the instrument (8,000 meters distance).
The direction finder followed the target through binoculars. The range finder measured distance by moving a measuring mark back and forth ("tattoning") until it was directly over the target.
Fire control radar PA 31 was an English radar station acquired for the Coast Artillery in the late 1940s.
It consisted of a radar antenna, sand detector and indicators.
In the fixed version, the antenna is placed on the ground surface above the bunker and other parts in shelter below ground.
In the moving one, everything was placed in a radar cart with antenna on the roof.