The largest and unique short wave database in the world covering all Broadcasting and UTILITY Stations 1.6-30 MHz along with the last monitoring date and many further details
ILGRadio  since 1983 the whole short wave spectrum in one hand
UPDATE INFO:
A22 upload of August 7th 2022 (2145 UTC)
Monitored and verified data: January/February/March: 20780, Year 2021:  13518 data entries, more details here STATISTICS
New web pages available: Explaining ILGRadio Data Fields and The Signal Types of the ILGRadio Database

PERSEUS SDR - Bandscan Record Files & PERSEUS Software