top of page

What exactly are the key Solar Indicies?

When you find yourself on a solar weather website and you see three measurements front and centre on your screen, have you ever wondered what they actually mean? Solar Flux Index, SFI, Sunspot Number, SSN, and Area are three indices used to measure solar activity along with the R and Kp values. Let’s take a look at what these values mean to amateur radio.

see more from vk3fs

17 views1 comment
bottom of page