URIxB Radio Interface by DMK Engineering w/ Internal EEPROM

URI allows a standard land or mobile FM radio to be connected to a host computer via a USB interface. Potential radios include amateur, business, public service/safety, GMRS, citizens band, etc. The host computer requires appropriate software, such as app_rpt with chan_usbradio, to drive the device. These applications currently run under Asterisk/Linux. URI may be used for remote radio control or can link two or more radios in repeater mode. Audio can be passed through VOIP/Ethernet. Many radios provide an interface connector for external access. These signals can be easily connected to the URI’s standard DB25 connector. The URI contains the C-Media CM119B, a high-quality full-duplex USB audio controller. One channel of receive audio and two channels of transmit audio are provided. Radios that have separate voice and CTCSS signals are supported. The second audio channel may be used as a line monitor. URI has dedicated input pins for CTCSS and COR and an output pin for PTT. There are al