Assuming that we're not entering another 'Maunder Minimum' with no significant sunpots for the next couple generations, we should see some sunspots again shortly. There have already been sunspots from the next cycle, and there has been a rise in solar activity outside of sunspots.
Typically, the number of sunspots ramps up very quickly, then tapers off slowly.
At this point, I'm not sure I'd invest a fortune in monoband 10 meter gear.
Based on my previous experience, which may not be typical, I'd expect 15 meters to come back to life at least a year ahead of 10. 15 exhibits much of the same characteristics as 10, in fact, it has some propagation modes, such as 'long path', that you won't often see on 10.
If, however, this sunspot peak is much lower than what we've seen recently, it's possible that 10 might not be fantastic this time around. We might see 15 and even 12 meters being the top DX band for a while.
Alas, the experts just don't know. Some are predicting a low cycle, and others are predicting a spectacular one.
Of course, more than just 10 meters is involved - the sunspot cycle affects the whole HF spectrum. When the higher bands are great, the lower bands tend to stink. But, you'll find better conditions on 20, 30 and 40 meters at night when the sunspots are high, too.
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