6050 kHz. Received in Spain (via remote Perseus server).
22-Sept-2016, 0527 UTC
Receiver: Microtelecom Perseus
Based on recent information from DXLD, I tried reception of ELWA on 6050kHz, starting at 0530 UTC. Unfortunately my area does not seem to be a good location. Then I accessed a remote Perseus server in Spain. It has been a very long time since I heard this interval signal last time.
The following lovely QSL card attracted many young SWLs in Japan at that time.