Braun commenced own experiments at the University of Strassburg. At first he tried to transmit into water, but changed it to use aerials in the air. Braun significantly changed the circuits, namely created the closed circuit out of condensor, coil and spark gap. The transmitting energy is coupeled from coil to coil to the antenna. This measurment leads to a prolonged damped wave, as if the transmitting power is taken from the inductor direct. Brauns transmitter at Strassburg covered a distance of about 40 kilometers. (Strassburg - Muntzig)
Prof. Braun
Source Dr. K. Stadtler
Braun transmitter
Elbe estuary at Cuxhaven
Source(2):Drahtlose Telegraphie durch Wasser und Luft
Prof. Braun, 1901, Veit & Comp. Leipzig)
Experiments at Cuxhaven were conducted by Brauns assistant Mathias Cantor.
Stollwerck payed the bills and Braun and his employees did the work. Test were
more complicated than at Strassburg, because the power of wind on the wires
stressed the material. The material of the wires were not so strong as they are today.
Radio shack 'Alte Liebe'
Source(3):
Radio shack on island of Heligoland
F. Braun at center
Source(3)
24.9.1900
On 24th September 1900 there was the first durable and constant wireless connection betwen Heligoland and the Kugelbake at Cuxhaven over a distance of 64 Kilometers. Prof. Braun was on the island and sent the telegram : Greetings
" Zum heutigen Feste der Wuensche beste
trinkt nicht so viel bei Doelle
sonst werdet ihr voelle"
At Cuxhaven a coast station was established which works with the lightvessels in the estuary and so founded a ship reporting system.
Kugelbake with shack and areals
Cuxhaven