Thanks to Dix, DJ6CB and PA9M, for ur report to my sigs on 472,5 kHz. It seems to be that I must have a receiving problem, thoug my rig ist unchanged since Jan. 2018.

Here in South Germany I cannot receive anymore the beacon BIA nor the other NDB on 630 m-Band.  A test with the SDR -Transceiver in Receive mode on 472 kHz (generic mode, no proper preselector filters for 472 kHz ) was not sucsessful.  Receiving BIA was a sign for moderate to good condx on 472 kHz.

I use an receiver  EKD 300, connected to the transmit-aerial. Receiving DJ 6 CB was often possible.  I will ry to check coaxial cables in receiving path. I receive noise, but no signals.

 

55,

Hans-Albrecht DK 8 ND