Archive for November 2019

HF band low SSN propagation

Are HF Bands Really Dead during Low SSN at Solar Cycle Minima?

Low SSN Solar Cycle minima – HF bands dead? Too often we hear amateur radio operators complain about HF bands being dead during the low ebb of a solar cycle that causes low SSN. Really? Who says the bands are dead? Think again… Let us do a reality check. At the time of writing this post, it is November 28th 2019. We are passing through the cusp between the solar cycle #24 and #25. The solar activity is at its rock bottom. The ionization density of the ionosphere is at a dismal low. Does it make HF radio propagation a challenge? Yes, it does… But it does not mean that the bands are dead?… Not Really. What really happens during the low SSN conditions is that HF band propagation openings that used to happen frequently are now less frequent. The duration of these openings to a particular DX destination becomes shorter. The strength of band openings become shallower. However, none of these means that the bands are dead or there is no propagation. All it means is that now HF... Click Here to Read Full Article […]

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