Common use of B22 Clause in Contracts

B22. Push-to-talk (PTT) operation: Separate PTT switches must be provided for radio transmitter and ICS microphone operation at the pilot and observer positions. ICS PTT switches must be provided for the other ICS-equipped positions. The pilot's PTT switches must be mounted on the cyclic control. The PTT switch(es) for all other positions must be mounted on the cord to the earphone/microphone connector.

B22. Push-to-talk (PTT) operation: . Separate PTT switches must be provided for radio transmitter and ICS microphone operation at the pilot and observer positions. ICS PTT switches must be provided for the other ICS-equipped positions. The pilot's PTT switches must be mounted on the cyclic control. The PTT switch(es) for all other positions must be mounted on the cord to the earphone/microphone connector.