Wassermann (Radar)

The radar ( radar ( FuMG ) ) with the code name " Aquarius " ( FuMG.402 ) was an evolution of FuMG.80 " Freya " and was used in the Second World War, the so-called " Fernstsuche ". The equipment for stationary use were developed from 1942 to GEMA under the leadership of Theodor Schultes. The aim of the work was, without major design changes at the transmitter and receiver of the Freya device to increase by improving the antenna system whose range and bearing accuracy.

Development

A total of seven different designs have been developed. The two main types are explained below:

• The Funkmessgerät FuMG.41 " Aquarius L" ( "light" ) was the interconnection of four Freya antenna fields superimposed on a 40 -meter-high rotating steel lattice towers.
• Another version was the FuMG.42 " Wassermann S" ( " hard "). For eight Freya antenna arrays were mounted on a 60 meter high mast pipe, four superimposed and two side by side.

The interconnection of the antenna fields resulted in a concentration of the radiation pattern. It could be achieved, and thus also a higher range so with constant transmit power to increase effective radiated power ( ERP). However, this was paid for by a higher use of materials. The interconnection of antennas above the other in " Aquarius L" showed a shallower vertical radiation pattern and a longer range with a constant opening angle, the bearing accuracy thus remained the same. With a ranking next to each other at the " Wassermann S" and the bearing accuracy could be improved.

Specifications

• Search section: mechanical swiveling through 360 °
• Range: depending on altitude and an altitude of, for example,

• Distance Measuring accuracy: / - 300 m
• Bearing accuracy:

• Ability to record high goals probably to 12,000 m
• Weight: 30-60 t
• Size: Mast height: 37-57 m
• Pole width from 6 to 12.40 m
• Immunity by three different continuous frequency ranges:

• ID: against first-