Beginning of work with I class (A class)

After passing the I class (now A class) for radio operator, and obtaining a license to work with the call sign YU4CW, and after moving to a newly built house, I continued to work on acquiring new DXCC (312), working on competitions and improving-increasing CW speed for the HSC club as a member since the beginning of 1988.

      

     The purchase of a new Kenwood line, equipment, antennas, etc. changed the way and possibilities of my amateur radio work. Although there was not enough time for more activities due to work, from 1971 to 1990.
QSL cards continued to come, directly or through the bureau. During that period I managed to collect and confirm 312 DXCC entities, but unfortunately there was no LoTW, and the paper QSL cards and the set of LOGs were lost, because in 1995 when I returned home, after the end of the war, there was nothing of value from my amateur radio work.