* The GPS tab allows the user to view the time, GPS state, and to change the Programmed Output Pulse (POP) settings.
* Check that the time is valid, and that there are no alarm conditions indicated.
* Make sure the pulse width is set to 10 microsec. It might function with shorter pulses, but there is a chance they could be missed. We typically use 10 microsec as the default.
* To set the Programmed Output Pulse, choose whether you want a single or repeating pulse, then choose a pulse width, the start date and time (in local time, 24 hour format), and for repeating pulses, the repeat interval. Then push the "Apply" button. Note: the POP may only be set to occur in the future; if an error occurs, check that you haven't chosen a time in the past.
* To stop the pulses from being sent, click the "Stop" button.