ISO 14819-6:2006建立了加密RDS-TMC 8A型数据组中携带的ALERT-C编码数据的某些元素的方法，使得在没有由终端或接收机应用适当的密钥的情况下，所传达的信息实际上毫无价值 在终端能够解密数据之前，终端需要两个“密钥”。第一个由服务提供商信心给予与他们有业务关系的终端制造商;第二个在“加密管理组”中广播，也是第8A类。本规范说明了两个键的用途，以及频率以及发送键可能改变的时间。 在个别终端可能向最终用户提供解密消息之前，必须已经激活了这一点。激活要求输入PIN码。 PIN码控制每个服务和订阅期的访问权限，允许终身和期限业务模型共存。 该规范还描述了希望引入加密RDS-TMC服务的服务提供商的考虑因素，其基于公共“位置表”或基于专有位置表的商业服务从“免费”服务迁移。 最后，b中留下了“钩子”

ISO 14819-6:2006 establishes a method of encrypting certain elements of the ALERT-C coded data carried in the RDS-TMC type 8A data group, such that without application by a terminal or receiver of an appropriate keys, the information conveyed is virtually worthless. Before a terminal is able to decrypt the data, the terminal requires two "keys". The first is given in confidence by the service provider to terminal manufacturers with whom they have a commercial relationship; the second is broadcast in the "Encryption Administration Group," which is also a type 8A group. This specification explains the purpose of the two keys and how often and when the transmitted key may be changed. Before an individual terminal may present decrypted messages to the end-user, it must have been activated to do so. Activation requires that a PIN code be entered. The PIN code controls access rights to each service and subscription period, allowing both lifetime and term business models to co-exist. The specification also describes the considerations for service providers wishing to introduce an encrypted RDS-TMC service, migrating from either a "free-to-air" service based on public "Location Tables" or a commercial service based on a proprietary Location Table. Finally, "hooks" have been left in the bit allocation of the type 8A group to allow extension of encryption to other RDS-TMC services.