Propagation

[Sonwatcher]

A tool for finding out if the band you are interested in operating on is open, dead or just quiet.

This table gives the minute and second of the start of the first transmission within the hour for each beacon on each frequency. A transmission consists of the call sign of the beacon sent at 22 words per minute, followed by four 1 second dashes. The call sign and the first dash are sent at 100 W. The remaining dashes are sent at 10 W, 1 W and 100 mW.

http://www.arrl.org/news/features/2007/05/03/1/?nc=1

Go here for Beacon chart