Extract from Daily Telegraph today:- "A recent Sun flare that has caused a radio blackout has prompted scientists to warn that the Earth will be most at risk from the effects of space weather later t
So can we assume that the exceptional conditions reported by Larry Kaiser were related to this Flare on 5 feb.if so there is a delay of one week between the event and the change in propagation! is th
Hi LF folks, SID effects are mainly caused by solar EM radiation and D region effects by hard X-rays. So they travel with about the same speed than visible light does. SID's are labelled according to
Vaino is right, I mixed up SID (or MDE) with the auroral effects which are caused by slower particles and occure several days after a major flare. In the past I observed enhanced propagation on 136kH