Tad "Walking on the Sun" Cook, K7RA, student of the sun and author of the ARRL Propagation Bulletins, will be here to talk about Solar Cycle 25, and what all those numbers mean on his bulletins.Be sure to CALL in with your questions and comments by calling 859-982-7373 live during the call-in segment of the show. You can also tweet your questions before or during the show to @HamTalkLive.