My 765 has no tx/rx. I found the DDS clock from this chip to be way off from the 5.xxxxx mhz it should be when the radio is set to 14.1 mhz. The xtal is at the correct 10.xxx mhz. Anyone have a data sheet or any info on it? I suspect it is a custom IC, maybe a programmable divider. Any assistance appreciated. Thanks. Dave K6DLW