While browsing the CRAC website, I came across a promotional brochure from 2012 titled "Amateur Radio Knowledge" created by CRAC.http://www.crac.org.cn/News/Detail?ID=99), Wow, it hasn't changed in 10 years! Using this promotional image now definitely means it's outdated. Even if the content remains the same, the graphic design needs to be updated. And of course, you need to add the latest information from the past 10 years. Should we ask CRAC to update it? Or should enthusiasts organize an update themselves if CRAC doesn't do it? At least we should have a new promotional image or brochure for future events.
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