Hello. When a connection is established between two users, what kind of protocol is communication. Also, when two users are connected, if a user wants to connect to these two users, does the connection break, can a third person intervene in this connection?
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VarAC uses the VARA protocol, created by EA7HVK, by using his software modem...VARA HF or VARA FM for VHF comms.
The mode is a one-to-one ARQ system, and only two stations can be in s QSO at a time.
VarAC adds many features, including the ability for a roundtable or net using broadcasts.