ARRL Ham Radio License Manual KB6NU No-Nonsense Study Guides. Ham Radio Exam Prep A License Manual and Study Guide for the Amateur Radio General Class and Radio Technician Tests with 100 Test. Send and Receive Together Walkie talkies also known as 'handheld transceivers' by radio hams only have one transmission capability You can either listen or speak but not both With a two-way radio you can do both at the same time although this is not advised This is where the phones come in.