VOACAP 11M Online



TX to RX:  km,  mi,  °
Date
Year:  Month:
SSN: 

Note: VOACAP 11M Online knows about the correct SSN values. Therefore DO NOT set any value to SSN, unless you want to experiment.

After you have entered a value in any of the fields, press the TAB key instead of ENTER.
Transmitter Site
QTH:
Name:
Latitude:[-90..90]
Longitude:[-180..180]
TX antenna:
TX power:
TX mode:
Specials:
Current point:
Receiver Site
QTH:
Name:
Latitude:[-90..90]
Longitude:[-180..180]
RX antenna:

The circular chart above shows predictions for 26-28 MHz. Hover the mouse over the chart for details. For predictions with more frequency coverage, click the "Run prediction!" button.
Online Help

VOACAP Online 11M Coverage Area Maps

Instructions:

  • If in doubt, use this writing as a reference.
  • Transmitter Site (TX) = Your Station (red) and Receiver Site (RX) = DX Station (blue). Drag the markers on the map to the desired locations. Click once any of the markers to swap TX and RX.
  • The red line between the markers shows the great-cirle path (short-path). You can also choose long-path. Zoom the map in/out with the mouse wheel.
  • Choose the year & month, TX and RX antennas and TX power.

More on VOACAP HF propagation predictions

Acknowledgements

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

© 2010-14 Jari Perkiömäki (OH6BG), James Watson (HZ1JW) and Juho Juopperi (OH8GLV). Inspiration by Steven, 19at066. Questions or suggestions? Write to our Helpdesk.