The most attractive advantage of digital communication is the ability to transfer large amounts of data. The 12.5 kHz channel spacing in using the C4FM FDMA digital modulation mode allows high-speed data communication with reliable voice communication and strong error correction performance. C4FM FDMA offers a 9.6 kbps data transfer rate speed. It differs significantly from existing digital radio systems and expands the possibilities for interesting amateur radio activities in the future.
The C4FM / FDMA technology provides three digital modes and an analogue mode (FM)
V/D-mode Voice and data communication in the same time frame.
This mode allows voice data with GPS position data and the ID data to be sent in the same time frame. In addition, transmitting voice data with strong error correction data, this mode contributes to the stabilization of digital communication.
Voice/FR mode uses the full data rate of capacity for voice data.
This mode allows for clear high-quality voice data transmission.
This mode is the basic mode of C4FM FDMA Digital HAM radio system.
Analogue FM mode
Analogue FM mode is the same as the current FM mode used by all.
Yaesu incorporated a suite of features within the System Fusion product line that are designed specifically for Amateur Radio Use. These features allow the operator to transmit high-quality digital voice simultaneously along with Digital Data, and a High Rate (Data FR Mode) dedicated Digital Data mode that provides a method of transmitting Images, Text message and Telemetry Data at a high rate of speed.
Unlike its commercial counterpart, System Fusion is an amateur friendly digital operating mode, straying away from some of the design considerations that make commercial solutions less appealing and more difficult for Amateur Radio Operators, providing a simpler interface and features that meet the demands and needs of the Amateur enthusiast specifically. Below you will find more information on this marvellous new technology, and how it can meet every operators demand and needs for a clear and simple digital experience.