This is really interesting! I think there's a lot of potential to create different CAPTCHAs based on the "HAM" meme.😂：
• Choosing the right method for measuring antenna performance
• Select the map block for ON80.
• Select all weather photos that could cause QRN.
• Select all waterfall charts that are not FSK.
· ......
Then I thought that we could use this method to send and receive specific QSL cards, similar to a cyber eyeball.
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