Today, business aircraft and regional airlines have an affordable option for faster, more accurate digital data communications. The Rockwell Collins CMU-4000 Communications Management Unit works with the Rockwell Collins VHF-4000 voice/data transceiver, or any ARINC 750-compliant radio, to deliver more throughput and real-time message capability. The advanced system also supports both SATCOM and HF data links to maintain connectivity during oceanic remote operations.