Yesterday, 28 April, I was able to receive a weak signal on 1593 kHz here in Salzburg, Austria at around 14.00 UT. Due to the nature of the emission, I suspected a test transmission and the most obvious station here would be the German station Kall, which has already broadcast on 1593 kHz on a trial basis and has a licence for the frequency.
In fact, Christian Milling from the Shortwaveservice now confirmed the reception to me, it was a test for measurements by the Federal Network Agency “BnetzA”.
Christoph Ratzer to DXing.info FB group (2021-04-29)