Key Select

(Trunking Personality, Talkgroup)

Selects the secure encryption key to be used for the current talkgroup (record / row). This selection applies for the current Trunking Personality.

When the ASTRO OTAR field is "Enabled" for the referenced Trunking System, this Key Select value is chosen from the Secure Hardware Encryption Key References List of the Secure KMF Profile selected in the KMF Profile Index field of the referenced Trunking System.

Be aware that the CPS is actually pointing to the Keys of the Encryption Key List for this selection; individual Keys from the Secure Hardware Encryption Key References List reference the Encryption Key List's Keys from the Hardware Key Reference field. Therefore any key selected when ASTRO OTAR is enabled, must first be defined in the Secure Hardware Encryption Key References List.

When the ASTRO OTAR field is "Disabled" for the referenced Trunking System, this Key Select value is directly chosen from the Secure Wide Window's Encryption Key List.

When the referenced Trunking System has (( a Software System Key File or an Advanced System Key with access selected in the System ID field )

Or, ( an Advanced WACN Key with access selected in the Home WACN ID field )), and

when the Secure / Clear Strapping for the current row / Talkgroup (of this table) is not set to "Clear".

And

(when the Secure Operation field is set to "Hardware", or

when the Secure Operation field is set to "Advanced Digital Privacy" and

when the Protocol Type field is set to "ASTRO 25"),

And

when the radio is model / option capable.