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Database Multimedia HF Signals Database

World-wide coverage

Unmatched 24-hour coverage of the entire HF spectrum worldwide

Integrated diagrams

Integrated multimedia network diagrams, signal descriptions and more.

Signal identification

Unparalleled accuracy and complete signal identification.

Calling systems

Integrated Callsign and selcall database - over 100 calling systems!

HF Spectrum


Our multimedia HF Signals Database contains millions of current records containing unequalled detail about the users of the HF Spectrum today.


We continuously catalog, analyze and re-verify EVERY signal and network on the air using our globe-spanning network of receivers - both manned and unmanned.

Signal monitoring
Frequencies and callsigns


Hundreds of new, completely-analyzed entries are made each day, not only to frequencies and signaling systems in use, but to the callsigns and other characteristics of those networks.

Languages and dialects

real data

Several hundred languages and dialects are also precisely identified. Links are provided to network diagrams as well as to pictures of various equipment.


Every signal is completely documented in the database, with detailed technical parameters.

Signal parameters
Frequency table

frequency table

The frequency table of the database contains a number of fields containing all relevant technical information to give the user a full picture of the signal .

other tables

There are 7 other tables, each with relevant, thorough and detailed fields. Our database offers more than 12x the depth of data and 7x the detail of any other product on the market.

HF signal tables