This sounds exactly like DCF77. The German Time clock on 77.5 KHzKiloHertz (kHz) 10^3 Hz. Could this be a British variant or a copy? -->Ywsia Yalek (talk).
Yes the audio is DCF77; the signal purported here is next to DCF77. This should be fixed. --Cartoonman (talk) 04:29, 2 April 2020 (NZDT)