Propagation charts updated through to March 2027

I have recently updated the propagation charts through to March 2027 with the new SSN figures.

Previously, these ranged from 120 to 999. But now they are:

October 2026: 74
November 2026: 72
December 2026: 69
January 2027: 66
February 2027: 63
March: 2027: 61

So they should be more accurate!

Regards, Steve G0KYA

Updated HF Propagation Charts from the UK

I have just updated my short-path propagation charts from the UK with the latest predicted smoothed sunspot numbers.

It takes about half a day to do - it took longer this time as I was using a new, faster laptop, but couldn't remember the log-in details for my server!

Anyway. they are done now. They are updated up to January 2027. Interestingly, the predicted smoothed sunspot numbers range from 120 for February 2026 to 96 for January 2027. These come from the Space Weather Prediction Centre in the US and are SIDC figures.

So it looks like we will have another good year of HF propagation, before the numbers star to slide further in late 2027. 

I still recommend both Proppy and VOACAP.com if you want detailed HF forecasts, or if you want to do long-path predictions. But for casual use my charts are fine, and produced using VOACAP.