Follow the wave propagation live from SI9AM on internet

wsprnet.org/drupal/wsprnet/map

Do this:

1. Under the map write SI9AM in the box "Call"

2. In the box "Band" select "ALL"

3. In the box "Time Period", select the time interval that you want to look backwards.

4. Check the box "Day/Night Overlay" to get the day and night on the map.

5. Under the map press "UPLOAD"
   

The WSPR is a gift from SM3EFS/Lennart. Thanks!