What characterizes a radio with "internal COMSEC" capability?

A radio with "internal COMSEC" capability is characterized by its ability to encrypt and decrypt transmissions independently, without the need for additional external devices. This internal functionality allows for enhanced security in communications, which is essential for protecting sensitive information during transmission.

The significance of this feature lies in its convenience and operational efficiency, as users can ensure secure communications without the necessity of incorporating external encryption equipment, which may introduce complexity and potential vulnerabilities.

This capability does not imply that the radio operates with reduced range or exclusively across multiple frequency bands, nor does it necessitate external devices for encryption. Instead, it signifies a self-contained system that streamlines secure communication processes.