The VHF-4000 is a product that features state-of-the-art digital signal processing technology, digital audio, a consolidated tuning/data/audio bus and data link communications support (VDL mode 2 and more). In addition to the all digital capabilities the VHF-4000 maintains the interface capabilities that enable it to be your VHF 22 ( ) and VHF 422 upgrade choice.
The VHF-4000 is a digitally controlled radio offering options for 25khz channel spacing as well as 8.33khz channel spacing. As a part of the VHF 4000 family the VHF 4000 E/F provides an extended frequency range to 152.000 mhz. Considerations for military use of frequencies in the extended range have been taken into account to ensure your installation meets all the appropriate requirements.
When all else fails the VHF 4000 ( ) will be there. The VHF 4000 () has an emergency mode that with a single discrete input will channel to 121.5mhz and with direct interface to the headsets you will need nothing else to keep in communications.
Collins Aerospace with it’s long tradition of thinking about the maintenance crew has incorporate a comprehensive self diagnostic like non other in the industry. In the rare case the VHF should fail real time failure status of the VHF 4000 ( ) in just seconds away either through the on board maintenance system or through the controller.