Correct, WTE_Goanna. At least that's what I learned in Tactical Communications back at the Navy.
Charlie-Charlie is rather new. It's the NATO-Description for cc, which stands for "Copy" or "Copy that", which simply mean that you had received a transmission and wrote it down in your comm-logs. It's also interesting that "copy that" sometimes is more common that "Roger" beyond radio-communications. Remember, that CC is also used in emails to send a message to more than one address.
