Five minute sequences, where one station transmits for five minutes and then receives for the following five minutes 

Two and one half minute sequences, where one station transmits for a full 2.5 minutes and then receives for the following 2.5 minutes

One-minute sequences, where one station transmits for one minute and then receives for the following one minute

Two-minute sequences, where one station transmits for a full two minutes and then receives for the following two minutes



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