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�Terms used ��C4FM�C4FM stands for Continuous Four Level Frequency Modulation and is a FDMA (Frequency Division Multiple Access) modulation method. C4FM is a digital modulation technology. What your radio uses over the air to talk digitally to other digital radios and repeaters.��Fusion�This is the name that Yaesu has given their implementation of C4FM. The full name is really System Fusion. This is not a new technology but a marketing term created by Yaesu for referring to their C4FM.

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Wires-X�Wires-X��Wires-X is a technology that runs on top of System Fusion. It provides a network of repeaters. Wires-X has a concept called rooms where multiple repeaters and nodes can connect and talk to each other. A room is similar to a reflector in D-Star, a Talk Group in DMR and a conference in Echolink.�Wires-X provides a directory of connected rooms and manages the connections from Nodes/Repeaters to each room.�In addition, Wires-X provides a way from the radio to change to a different room, search rooms and more. Some radios have more features than others because of touch screens, etc.�There is also the ability to send messages and pictures, put them in a common message store on each node or room for others to read (think of news).�Without Wires-X, System Fusion is just a communication protocol.��

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YSF�YSF is short for Yaesu System Fusion really and is not a Yaesu technology for looking at the YSF servers. It is another method of creating a room where other System Fusion users can connect together. To get from Wires-X on Yaesu System Fusion to a YSF server, you need a bridge.��Bridge�A bridge is a way of connecting 2 different protocols or technology together. It is similar in concept to a cross band repeater that for example takes in a signal on 2 Meters and transmits it back out on 70cm.�Since YSF cannot directly talk to Wires-X, there is a bridge that can talk to both YSF and Wires-X. When it hears something on Wires-X it sends it to YSF and the opposite happens when it hears something on YSF.�You can bridge from Wires-X to D-Star and DMR and vice-versa��

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Wires-X Features�Smart access function- WIRES-X automatically connects to nodes and rooms via the Internet Information about nodes and rooms is exchanged via C4FM Digital signaling. �Activity monitor function- Currently active nodes and rooms can be searched in real time, and viewed on the display of your transceiver. The display list is sorted according to the number of stations currently connected to the room.�News station function- News bulletins (messages, images, voice memos) can be freely uploaded to nodes and rooms. Other users can download the saved news information. For example, sharing traffic information or other local news, or sending a snapshot of a meeting place to fellow operators, as well as a myriad of other uses are possible.�Preset search function- Search and connect to local node stations with a simple button touch. The system will automatically obtain node station information and setup the required frequency and digital code parameters. Node station ID, city name, as well as distance and bearing are indicated on the display of the transceiver.��

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Interesting Features of Fusion ��Traditional FM Plus AMS �C4FM Digital–Two Modes Wires-X and Group Monitoring ( Great Voice Quality on both ) ��LocationServices-�– APRS�– Ranging / Location�– Group Monitoring ��RadiooverIP (RoIP) ��Image Capture ��SDCard Programming ��C4FM on HF bands using GM��