VOACAP Online

Professional-grade high-frequency (3-30 MHz) propagation predictions
Date
Year:
Month:
Transmitter Site
Name:[1..20 chars]
Latitude:[-90..90]
Longitude:[-180..180]
TX Antenna:
TX Power:
Receiver Site
Name:[1..20 chars]
Latitude:[-90..90]
Longitude:[-180..180]
RX Antenna:

Online Help

In a typical case, Transmitter Site = Your Station and Receiver Site = DX Station.

Entering coordinates

  • Use 2-decimal notation, e.g. latitude: 23.08 and longitude: 21.62
  • Latitude values are between -90..90 (degrees)
    • Negative value (e.g. -23.60) is South (S), positive (e.g. 23.08) is North (N)
  • Longitude values are between -180..180 (degrees)
    • Negative value (e.g. -46.67) is West (W), positive (e.g. 21.62) is East (E)
Need coordinates? Use our QTH Locator. For more info on VOACAP HF propagation predictions, please visit the VOACAP Quick Guide.

Acknowledgements

This service would not have been possible without the support of two special people: Mr George Lane and Mr Greg Hand. Thank you!

© 2010 Jari Perkiömäki (OH6BG), James Watson (HZ1JW) and Juho Juopperi (OH8GLV). Questions or suggestions? Write to our Helpdesk.