The Funksprech F is a transmitter/receiver for use in armourned car vehicles. For example the Panzerspah wagen.
My Fusprech F.
Left below in the picture the headphones type DFH-b, at the left below the throat microphone..
The inside of the frontcover with an overview of the installation. Just click at the picture to enlarge and seeing it.
A radio operator controlling the radio in a armoured car, a “Panzer Spah Wagen”, in Russia during WW2. Probable, seeing to the second person, there an attack with mortar in the neighbourhood? Watch also the mark on at his uniform of the left person ,telling us, he was a radio operator, or called “Funker”.
This antenna was very often in use in radio vehicles of the German Army. There were more types of them, some smaller ones, used on tanks.
I did use the antenna once, to see how the results were. I putted it on an isolated mast at a height of 4 m above the ground and managed to match it to my modern transciever by means of a 4 meter single feeder to a little tuner. Only in the 15 meter amateurband it was possible. AT good propagations I manage to work amateurs through all Europe. Only the principle of functioning is not all clear to me.
I think it is a toploaded vertical. Only the vertical part, being the 4 meter feeder to the tuner , is radiating? The “Stern”is only a toploading or top capacity for a better matching? Or is the “Stern” also radiating in a horizontal way. For me an open question.
Origina,l the antenna was ment to have a good range and signal strenght at nearby. Not suitable for skywave transmissions.
But my experience was quite different, just suitable for skywave.
Maybe someone can tell me. I only got an explanation of the principle in the books about Russian radio after the war. (Gunther Fietsch).
The Stern Antenna in use in the back of my garden. Just below in the picture the 4 meter feeder wire to the tuner.