Key ID - Tx Hang Time

Selects the amount of time that the radio waits once a transmitted secure call has ended before reloading the last user-selected or slaved encryption key. This hang time is only needed when the radio had to temporarily switch to another encryption key in order to receive a call that was transmitted with a different key; and then the radio continued to use that switched-to encryption key for the return transmission. This feature applies to secure encryption mode for Conventional communications. Time is in milliseconds.

When the Secure Operation field is set to "Hardware" or "Advanced Digital Privacy", and

when the radio is model / option capable.