Rule 120 — Radio Terms

1. (a)In radio communication the following terms when used will denote: “STAND BY” - Monitor this channel for my next transmission. “OVER” - Transmission is ended and a response is expected. “OUT” - Transmission is ended and no response is expected.
2. (b)OPTIONAL: Except when radio communication relates to switching operations, when a transmission is complete and a response is expected or required, the transmitting employee must end each transmission with the spoken word “OVER”.

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