Being a Capacity Plus system does not automatically mean it is encrypted. It means it is a MotoTRBO system with multi-site trunking. They do have the choice to encrypt, like any DMR/MotoTRBO user does. The best way to check for encryption is to use a scanner with a discriminator tap and software. If it is not encrypted, you'll still be able to hear bits and pieces, but not able to trunk along. If it is encrypted, the software will indicate so. If they are not encrypted, then you can listen along on an actual Motorola MotoTRBO radio with the appropriate programming.