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Icom IC-9100

The IC-9100 is an HF/VHF/UHF all-mode base (optional 23cm unit) with optional D-STAR. It offers a USB CAT interface; route audio via USB or the ACC connector to your node interface. Control is CI-V — connect a CT-17 level converter or a USB-to-CI-V cable (CP210x/FTDI) to the node computer. There is no built-in USB codec, so receive/transmit audio comes from the rear ACC/DATA connector to a USB radio interface (DMK URI, RA-series DRA, RIM, etc.). PTT: key over CI-V, or from the interface's PTT line to the ACC connector. Set the CI-V address before deployment. For an analog ORLP node, operate the radio in FM (analog) mode — do not link D-STAR digital audio into an analog node.