this recording was made by Nils Schiffhauer:
Petersburg working with Arkhangelsk
another recording by Nils Schiffhauer,
here Petersburg working with Kotlas;
both recordings from 2018
no pictures of QSLs or other info available
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Callsigns:
Radan
Frequencies Voice:
2917
2938
3016
3479
4045
4672
4728
4738.5
5559
5604
5661
6554
6598
6673
6724
8095
9024
10084
13288