Figure 2—The repeater database text file has one line per repeater. Tabs separate the fields. All fields must be present. (Enter zero for the tone field if no tone is required.) The fields, in order, are as follows: station latitude in degrees, station longitude in degrees, frequency in megahertz, plus or minus for offset, call, and tone in hertz. An auxiliary program converts the data to the format needed by the microcomputer.