A WATCH for G1 (Minor) geomagnetic storms has been issued for 23 April 2016 due to the anticipated influence of a positive polarity coronal hole high speed.
Source´s: https://solarmonitor.org and
Turn your Arduino into a powerful radio transceiver! HamShield lets your Arduino talk to far away people and things using powerful amateur radio bands! With the power of Arduino, you can use the HamShield to build and invent amazing thi... Read more