Milestone reached for HF Band Openings

At this stage, I'm looking for feedback to guide further development of the WSPR charts.

Would the band-opening charts be useful for your contest planing?
How would you like to use the charts?
How often would you like to see the charts updated?
Weekly, monthly, quarterly ... ?

My fundamental idea for these charts is to support contest planing.

I'm thinking about presenting a worked example of how to build a contest plan using the WSPR charts.
I will be happy to build an example contest plan for a volunteer.
Nominate your choice of contest. Ideally, an inclusive international contest using all HF bands.

Looking forward to your feedback:
Send an email to: statistics at

73, John VK4CT