【實用工具app】WSPR World Watch v2|最夯免費app-綠色工廠好玩App

This app answers the two basic questions facing radio amateurs:-

Which band shall I use now ?

Where shall I point my beam now ?

It will also interest anyone who is studying radio propagation and the ionosphere.

This app plots radio transmission paths observed in real-time on a world map which may be centered either on the Atlantic or the Pacific.

It incorporates a background plot of the 'greyline' or terminator and displays current Space Weather indexes. In addition it may optionally plot the Aurora ovals.

Individual stations may be monitored.

It can be configured to voice alert for band openings.

The data is provided by the WSPR (Weak Signal Propagation Reporter pronounced 'whisper') system which is designed for probing radio propagation paths using low-power beacon-like transmissions from Radio Amateurs. WSPR signals convey only a callsign, Maidenhead grid locator and power level. Receiving stations with internet access automatically upload reception reports to the central WSPR database.