Kommander T1 [updated]

And now something was listening back.

There is a free "T0" version for single screens and a study version of kommander t1

ALE is an automatic handshake protocol. You program your call sign and the network's list of frequencies. When you turn on the T1, it listens. It automatically finds the clearest frequency and alerts your team. In a crisis, you do not have time to spin dials looking for a clear channel; the T1 handles it. And now something was listening back