The following FAQs are provided to assist in successful operation of the ptf 3203A and ptf 3204A GPS Time and Frequency Receivers.

There is a problem with the communications

The unit does not seem to initialize

Unit appeared to initialize, but now the Fault LED is ON and the Lock LED is OFF

The time display is incorrect.

The unit was working, but now I have moved location and it will not initialize anymore.

I am using the external 1PPS input as my source, but the unit will not initialize, the fault  LED stays ON and the Lock LED continuously flashes.