The largest and unique short wave database in the world covering all Broadcasting and UTILITY Stations
with last monitoring date (time stamp) and many further technical / signal details
ILGRadio  since 1983 the whole short wave spectrum in one hand
UPDATE INFO:
B25 Season - December updates on a nearly daily basis: upload December 5th 2025 (2314 UTC)
Database of today with 86367 data sets with latest monitored and verified data entries of the current B25 season:
Year 2025: 30183, Year 2024: 12675, Year 2023: 8114, Year 2022: 6960 data sets effective for December,
more detailed latest statistics as of 31st August 2025   incl. also statistics of all the previous seasons
Important web pages for help: Explaining ILGRadio Data Fields and The Signal Types of the ILGRadio Database
ILGRadio as seen from others: Comments of satisfied ILGRadio Users over the years
SIGMIRA Software for UTILITY Signal Converter

SIGMIRA Software for UTILITY Signal Converter

Password delivery:
1 - 24 hours daily available 1 - 24 hours daily available
ILGRadio Info
Description
Sigmira™ is a Software Defined Radio (SDR) application program that runs on Windows. It operates with with an external conventional receiver, RFSpace SDR-IQ™, RFSpace SDR-14™, RTL-SDR, SDRplay RSP, or SDR-RADIO.com networked receiver. Sigmira offers wideband spectrographic, waterfall, and phase plane displays. It also demodulates various military, utility, and "ham" radio signals.
 

LINK:

Sigmira
click for the converter software