⭕ This is a General Dynamics R2670B Digital Communications System Analyzer. The R2670B provides support for most compatible encryption algorithms including, DES, DES-XL, DES-OFB, DVP-XL, DVI-XL, as well as the recently released AES. Voice and embedded data encode and decode testing can be done in the encrypted mode using either permanently stored test keys, or actual customer-selected keys which can be loaded into the unit using a compatible keyloader. This R2670B is the Enhanced Standard Unit for ASTRO, Project 25, SMARTNET/SmartZone, and/or SECURENET test options. See pictures for full option configuration. Delivery available. This unit has been fully checked and is guaranteed completely operational.