Two special guests joined us this week: W4LTZ (Shane Perry) and KD3QO (Buzz Borries). Both are amateur (ham) radio operators. Before class they erected an antenna on the soccer field and setup a radio station in Woods Hall. Buzz explained how radio works, and Shane demonstrated how to use the radio. We learned to call “CQ” to invite others to a conversation and listened to several conversations including one in Italian.We continued work on our crystal radio sets. The picture shows the wooden base, tuning coil and variable capacitor. Next week we’ll work on our radios and have another special guest.