1968

First have appeared swl-s signal: UA4.095.16 - Vladimir N Bogdanov, UA4.095.17 - Yury V Sunkhov, UA4.095.18 - Rafail V Zlobin, UA4.095.96 - Michael J Pozdeyev, UA4.095.97 - Nikolay P Nukalov, UA4.095.98 - Svytoslav A Yakimov.

1969

The swl-s UA4.095.16 and UA4.095.18 made the next attempt, to receive signal, which also has failed.

1974

UA4.095.96 Again has submitted the documents on reception signal.

1976

After long active expectation for the first time in city was received of a signal amateur radio station - UA4WWF of Michael J Pozdeyev.

1979

Have received signal: RA4WAU - Vladimir N Bogdanov, UA4WAB - Rafail V Zlobin, UA4WBR - Valery I Chmokovenco

1983

Michael J Pozdeyev with group of the enthusiasts opens first in city a collective radio station with signal UK4WAU.

1985

Has appeared UA4WEV - Alex Y Begishev. On a collective radio station - UA4WDO and UA4WB have begun to spend sessions of space communication.

1986

Has appeared UA4WFG - Fedor I Sergeyev.

1987

UA4WFX - Michael N Tarasov, UA4WFY - Leonid V Tarasov, UA4WFZ - Nikolay N Bazhenov, UA4WFW - Lev G Ivshin.

1989

The signal first women in city have received: UA4WHS - Galina S Zhuykova, UA4WHT - Natali V Begisheva.

The further attempts to open radio stations did not meet difficulties of that time and carried only technical character. More detailed information can be received from radioamateurs. All of them live, work in an ether with variable activity.