As we have different and sometime secondary basis allocations in EU it's probably some digi link communication somewhere in West/South West EU.
Recording date 08.july.2015, 18.58UTC, QRG 70.163.00 USB mode, direction of USS not determined, antenna heading S-W, beaming CS5BFM beacon.
Sound file : USS
At this time massive Es clusters above Germany and HB9 with MUF up to 171MHz and 9H station were heard on the side of the beam. Appeared suddenly at the time of recording and gone. Sounding similar as FSK.
Any idea ?
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