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Icom Ci V Usb Interface Professional Designprogramming StandardsThe site will stand above all other ham radio sites by employing the latest technology and professional designprogramming standards, developed by a team of community programmers who contribute their skills to the effort. The site will be something of which everyone involved can be proud to say they were a part. Icom Ci V Usb Interface Download The SoftwareIf you do not have this installed, please download the software by clicking on the icon at left. Full details are in our Privacy Policy, GDPR Privacy Policy, and Cookie Policy. WSJT-X uses a small set of messages over the CAT interface to control the radio. It helps to have a basic understanding of the computer interface within the radio. The good news is Kenwood, Icom, Yaesu and even SignaLink share a similar architecture, often down to the same device part numbers and software drivers. Once the USB cable is connected to the radio the first device in the data path is a USB Hub. Just like a Hub, you might use on your desk its function is to provide multiple USB ports with only one cable from the PC or Laptop. It does not require configuration or drivers and is transparent to the user. If there wasnt an internal Hub each of these devices would have a separate USB cable to the PC. This is important as it shows how separate and independent they are when setup, access, and drivers are considered. Kenwood, Icom, and Yaesu use a USB UART Bridge from the SiLabs CP210X family. SignaLink does not have a serial CAT interface). All three plus SignaLink use a USBCODEC from the Ti PCM290XB family. We will review the functions and setup of the USB UART Bridge first. USB UART Bridge A Bridge may sound complicated but all this device does is accept bi-directional USB and produces bi-directional serial data. You may have used an adapter with a USB connector on one side and a DB-9 9 pin serial connector on the other side. It is likely it used the Silabs CP2101 or a similar device made by FTDI. This interface is often referred to as a Virtual Com Port (VCP) which replaced real DB-9 Com ports found on computers into the 1990s. It is called virtual because much of the serial COM port functionality is achieved with software. The radios that can be computer controlled have a CAT interface (computer-aided transceiver). A related term is CI-V (Communication Interface v5) which is an Icom standard that defines the messages the radio will respond to. The messages are in text (ASCII) format, for example, to transmit you would write TX; to the radio. With a serial interface or VCP, you can send ASCII text messages to your radio using Hyperterminal or an application called PuTTY and it will respond. Older radios used a CAT interface that required a serial COM Port on the PC. Most of the current radios can still accept serial data through an ACC (accessory port), and a few still have a DB-9 9 pin connector for serial data. Newer radios also have a USB interface and use the USB UART Bridge to receive the serial CATCI-V messages from the PC. A radio menu setting is used to select data over an ACC or the USB for radio control. Audio is not passed using the USB UART Bridge CATCI-V interface, it is strictly used for radio commands.
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