The RLC-1 Plus is an upgrade that can be added to the original RLC-1, making it a powerful, voice based controller with 70 macros, a clock/scheduler, HF remote base control and more. Existing RLC-1 controllers can be upgraded in the field; new RLC-1 controllers can be purchased with or without the Plus upgrade. Either way, the RLC-1 / RLC-1 Plus supports two full duplex radio ports. It does not support an autopatch.