Novosibirsk Aero :
this recording was made by Nils Schiffhauer in 2018
in 2013, Patrick Robic received this nice letter together with his PPC-QSL
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Callsigns:
Katiusha
Frequencies Voice:
3004
3080
4678
4684
4694
4712
5586
6592
6603
6820
6895
10096
11192
17958