AC4790 900MHz Radio Module Developer Kit Laird AC4790 900MHz Radio Module Developer Kit and 5in RG178 Cable use field-proven 900MHz FHSS technology (that needs no additional site licensing), reject interference, enable co-located system operation, and ensure data integrity. Laird AC4790 900MHz Radio Module Developer Kit incorporates high-performance AC4790 radio modules which use Laird 'masterless' protocol, allowing each radio module to communicate with any other in-range radio module for true peer-to-peer operation. The AC4790's protocol features a dynamic addressing scheme that simplifies node-to-node communication. The radio module enables identification of the most efficient transmission path, so routing sequences that optimize the RF network can be designed. This makes the AC4790 ideal for a wide variety of industrial applications that must rely on smooth, constant data flow. The Laird 5in RG178 Cable has a u.FL plug to connect to RPSMA bulkheads.