External Radio Ignition

(Radio Ergonomics Wide, PA / Siren)

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ENABLE.jpg  Enables Public Address (PA) system ignition sense when in External Radio mode. Therefore, External Radio mode is only operable when the vehicle’s ignition is turned ON. This feature applies on a radio-wide basis.

Disabled.jpg  When disabled, External Radio mode is operable with the ignition switch ON or OFF.

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WFForward.png External Radio mode is radio-user initiated:

  • with an DotRed.png External Radio button-press in conjunction with DotRed.png Siren button-press (which enables the external Siren / PA speaker), or

  • directly with a DotRed.png Direct Ext Radio button-press (which simultaneously enables the external Siren / PA speaker).

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When the Siren Operation field is not set to "Disabled", and

when the radio is model / option capable.

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Go to the PA / Siren Page