Category: Propagation

G1-Class geomagnetic storm in progress

A hole in the sun’s atmosphere is spewing solar wind toward Earth, and this is sparking bright auroras around the poles on Oct. 11th. At the time of this alert, a G1-class geomagnetic storm is underway. NOAA forecasters estimate a 70% chance of continued storms at high latitudes on Oct. 12th and 13th as Earth […]

August 2016 Ionospheric Propagation Predictions

Solar activity continues to fall and several coronal emissions (CME) occur on the Sun, typical of the descending periods of the solar cycles. The activity has reached high levels and the geomagnetic field has reached minor storm levels. August will be a period of bad propagation with frequent geomagnetic variations, which adversely affect the general […]

USAF wants to improve HF communications

New Scientist magazine reports the US Air Force is working on plans to improve HF radio propagation by releasing ionised gas in the upper atmosphere using a fleet of micro satellites As well as increasing the range of radio signals, the USAF says it wants to smooth out the effects of solar winds, which can […]