that
was not possible in my youth. So, if I could not receive radiowaves
from
outside the earth, perhaps even from "extraterrestrial ones", I at least
wanted such waves to produce to be able to use them in our real
world
for communication .
After the first broadcast recording attempts with Crystal Broadcast Receivers in the early 1950's, in which I used crystals out of my fathers mineral collection secretly as crystal detectors, in 1953 I built my first short wave receiver, a type "0-V-1" with the legendary RV12 P2000. In such a way I began as a short wave listener (SWL). I listened in on many QSO, sent my SWL-report under the self-given listener number "DM-SWL/M " and even invented with the request for confirmation by direct QSL.
The picture to the left was taken in 1964, after I got my first amateur radio license under the call DM3ZZM as a co-user of the club station DM3ZM .
With this homemade amateur radio equipment I could bridge much more than 100 km with fewer as 50 mW outputs and a selfmade six element Yagi antenna on the 2 m-band .
That equipment consisted of a VHF signal generator (on the right), which was modulated by a modulation amplifier MV23 (centre). As the receiver I used the famous tube converter by DM2ADJ and behind that a short wave receiver "Radione-R3" (left). On the right in the picture is the controller for the antenna rotator "Planet".
There were no radios to buy at that time. Who ever wished to transmit had to build his radiostation by himself.
