Links
 |
RF
Cafe Your engineering vehicle on the Information Superhighway. Featuring RF-related headlines, software cafe, and a very large variety of resource links. |
Nordic
HF conferences  |
Association
of Police and Public Security Suppliers The UK website for manufacturers and suppliers of equipment and services to POLICE - LAW ENFORCEMENT - PRISONS - FIRE SERVICES - CUSTOMS - COASTGUARD - AVIATION SECURITY - MARITIME & EEZ SECURITY - IMMIGRATION - CIVIL DEFENCE |
 |
SEC's Radio User's Page PURPOSE: To provide radio operators with current data on the state of the ionosphere. |
 |
These pages provide general propagation advice for HF communicators. Information available includes inferred global propagation conditions, real time HF fadeout coverage charts, regional ionospheric vertical MUF maps and Hourly Area Prediction charts. |
Amateur
radio site The DXZone
