Tait TP9400, Руководство пользователя

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Encryption 103
About encryption
The encryption feature is available for digital and
dual-mode channels only.
To make communications with other users on your
system completely private, your radio may be able to
encrypt outgoing calls, using a confidential encryption
key. The radio receiving your call must have the same
encryption key installed before it can hear your
encrypted call.
About the proper key detect feature
Your radio may be programmed with ‘proper key detect’.
This means that you can only hear an encrypted call if
the key used to encrypt the incoming call matches the
key used to encrypt your outgoing calls on that channel.
Note that encryption does not need to be turned ‘on’ for
the radio to unmute.
For example, you are encrypting your outgoing calls
using encryption
key 7 . Although key 1 and key 2 are
also stored in your radio, your radio has been
programmed so that it will only unmute for incoming
calls encrypted using
key 7 .