DUR June 2021 Posted on June 20, 2021 by mario 17 QSO on 23cm and 2 on 10GHz. Quite good activity on 23cm due to ongoing Alpe-Adria Contest. DUR 21/June 23cm result – Kartendaten: OpenStreetMap-Mitwirkende, SRTM | Kartendarstellung: OpenTopoMap (CC-BY-SA), DL4MFM log analyzer