I have a Efratom GPS Time Std Model 13716 Motorola Simulcast System the date is not correct (03-01-06) and the time is 19 seconds fast. The Rubidium syncs fine 10.000,000,00 mhz The XO is also spot on. I’m thinking it is the software version that is installed on the unit: PMM Version = 001.01.07 PRS Version = 006.01.14 Anybody have any ideas - experience with this unit? Thanks Manfred