Explore LOTA (Lighthouses on the Air) with DCO: guides, events, and resources for HAM enthusiasts connecting via lighthouse stations.

Discover DX radio links in North, Central, and South America. Connect with CB and HAM communities across the continent. Americas

Join the DXCO Loyalty Program! Enjoy exclusive perks, participate in challenges, earn rewards, and stay engaged with the community. Il programma fedeltà non è disponibile.

Grazie, Nome donatore Ti ringraziamo per la tua donazione generosa di €0 Il tuo numero di donazione è 1000. Riceverai presto un'email di conferma.

Learn the DCO Code of Conduct: guidelines and rules for respectful, safe, and enjoyable participation in the DCO radio community.

Discover COTA (Castles on the Air) with DCO: guides, events, and resources for HAM enthusiasts connecting via castle stations.

Learn about radio wave propagation with step-by-step tutorials. Tips and guides for CB and HAM operators to improve signal understanding and performance. Propagation Tutorials Propagation Tutorials General Guidelines for Correlation of Propagation Indices to Actual HF Propagation Conditions Propagation tutorial by PA9X N0NBH's propagation tutorial (PDF) NM7M: The Little Pistol's Guide to HF Propagation (PDF) Propagation Broadcasts and Forecasts Demystified (PDF) RSGB Propagation Studies Committee (lots of info on different propagation modes) Understanding 10 (11) Meter Sporadic-E (understanding ES or “short skip”) Understanding Solar Indices by Ian Poole, G3YWX KP-index and Aurora KP-index and Aurora NE EURASIA KP-index and Aurora SE Africa-Indian Ocean-Australasia, Macquarie Island KP-index and Aurora NW NORTH AMERICA KP-index and Aurora SW SOUTH AMERICA; EASTERN PACIFIC The Sun Today: Directory to the Latest Solar Images and Interplanetary Data >>>

Explore the DCO Glossary: comprehensive definitions and explanations of radio terms, abbreviations, and technical language for enthusiasts worldwide.

The DCO is divided into several specialized areas: CB & 11m local radio communicators CB & 11m long DX radio communicators HAM Amateur Radio Listener and Transmitters. SWL & CW IOTA POTA COTA LOTA SOTA WWFF Listener and Broadcasters Radio Stations DCOH Humans world DCOA Animals world DCOC Climate & Environment protection DXCO DX Communication Operators DCO Delta Charlie Oscar Group DCOP Prepper Association (DCOP) DCOS Science Space & ASTRO Association ARCARC Association DCON The Independent News Room DCOF The Fancy Club for Young and Old

Access detailed reference maps for grid locators and DX communication. Improve accuracy and planning for HAM and 11m operations.

Explore flight communication with DCO: resources, guides, and community for aviation radio enthusiasts, tracking aircraft and air traffic communications. Air radio / Aeronautical radio communication Flight Communication Frequencies Frequencies Worldwide Air Route Areas (MWARA) Aeronautical HF Radio Map Questa mappa è ancora del 2002. Tuttavia, non dovrebbero esserci modifiche significative. Chi desidera la mappa aggiornata può acquistarla a pagamento dal creatore, Risto Hirvonen. Cliccando sulla mappa si ingrandisce! Posizioni attuali degli aeromobili

Discover the QSL section with resources for CB and HAM operators. Exchange QSL cards, confirm contacts, and strengthen your DX network. DCO QSL CARD SECTION