I bought a DATUM ExacTime 6010 today that looks to have fully loaded option board on it. It'll be interesting to see what built in LO it has. It looks to have GPIB. I know some of these have firmware issues that were updated by symmetricom for leap second issues which required replacing an eeprom chip. I'm curious if anyone has ever tried replacing the GPS module in a device like this or copying a new newer eeprom chip to update with newer firmware? A friend of mine replaced SIRF in a spectratime GPSource Rb rack mount unit and replaced the it with a ublox LEA-M8T. I wonder if something like this could be done here? I know that both x72 and LPRO-101 were options on the ExacTime 6010. I'm hoping even if it doesn't have one of these options that adding one might not be too difficult. The unit has two jumpers inside to select the LO option whether TCXO, OCXO, X72, or LPRO. I've found the user manual for it. From what I know these have a lot of input and output options for the built in many BNCs it carries. It would really be neat to modernize this old piece of kit with better GPS and PPS.
Here's some of the pics I saw before buying it. Bill
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