I call this service 'VOACAP DX Charts', and the address is : www.voacap.com/dx.html . This service of course uses much of the same technology I created for the Propagation Planner such as:
- interactive propagation charts that show the QSO probabilities and signal power (hover the mouse over the table cells to see the values)
- graphical presentation of sunrise and sunset times to help predict low-band openings (hover the mouse over the 'TX' and 'RX' labels on the bottom left of the tables to see the exact sunrise and sunset times in UTC)
|An example DX propagation chart.|
To use this service, the user only needs to know his/her Maidenhead grid locator and press the "Run!" button. If you do not know your grid locator, I have created an easier-than-the-easiest Google Map application to help you find your grid locator : www.voacap.com/qth.html . Just zoom into your location on the map, and your coordinates and grid locator are readily visible on the top part of the map.
For the predictions, I have assumed that, on 20M to 10M, the DX uses a 3-ele Yagi at 10 meters AGL, and on low-bands a 1/4 vertical over a good ground. On the user's side, a 3-ele Yagi at 20 meters AGL for 20M to 10M, and a 1/4 vertical over a good ground are assumed.The TX power used is 1.5 kW.
Currently, the following DXpeditions are included:
- TI9/RA9USU, Cocos Isl (Jul 2015)
- K6W, Wake Isl (Sep 2015)
- TX3X, Chesterfield Isl (Oct 2015)
- 3B9HA, Rodrigues Isl (Nov 2015)
- 3C7GIA, Equatorial Guinea (Nov 2015)
- VK9WA, Willis Isl (Nov 2015)
- 3Y0F, Bouvet (Dec 2015/Jan 2016)
- KH5, Palmyra (Jan 2016)
- VP8SGI, South Georgia (Jan 2016)
- VP8STI, South Sandwich (Jan 2016)
- FT/J, Juan de Nova (Mar 2016)
- VK0EK, Heard Isl (Mar/Apr 2016)
Please let me know if you find bugs, or want more DX sites to the list.
73 Jari OH6BG