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|  |  |  |  |  |  |  |  | Tunable over entire broadcast FM radio band, from 88.1MHz to 107.9MHz on 0.2MHz steps. (Transmitter is compliant with FCC Part 15 regulations.)
 
 |  |  |  |  |  | Can be programmed to operate in one of three modes: |  |  |  | I) External Audio Mode. Audio from an external source is transmitted on the selected frequency. Any standard audio source can be used, such as a CD player or a Tape player. |  |  |  | II) Internal Audio Mode. A recorded message, up to 5 minutes, is played repeatedly. |  |  |  | III) Interrupt mode. External audio is transmitted for a programmed time, up to 60 minutes, and then the internal message is played once. After the internal message is played, it returns back to the external audio source. |  | 
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