+.TP
+\-c radio-calibration | --cal radio-calibration
+This programs the radio calibration value into the image for hardware
+which doesn't have any eeprom storage for this value. The value here
+can be computed given the current radio calibration value, the
+measured frequency and the desired frequency:
+.IP
+ cal' = cal * (desired/measured)
+.IP
+The default calibration value is 1186611.