Model: XR Series Transmitter with Internal or External Antenna
All or some of the below symptoms may be present.
Red LED is flashing on the Transmitter front display.
Green LED may or may not be illuminated. When the green LED is illuminated, the Transmitter is currently broadcasting (broadcast mode). When the green LED is NOT illuminated, the Transmitter is not broadcasting (standby mode).
Transmitter front display has a GPS communication symbol , but does not display the parentheses to the right of the symbol.
Clocks may be displaying a visual signal loss indicator due to they have not received a time update for three days; Analog Clock second hand is stepping and a Digital Clock/Timer colon is flashing.
Transmitter is communicating with the GPS Receiver, but is not receiving a time update from the GPS satellites.
Is the GPS Receiver inside? If it’s mounted to a window or mounted where its signal has to go through the roof, the GPS Receiver may need to be relocated outdoors. A GPS Receiver located indoors may not allow for an adequate signal. Low-E glass windows are coated with a transparent metal layer that reflects infrared heat rays; which can also reflect the GPS signal.
Check the GPS Receiver mounting location. Verify its mounting did not slip or change and it has a clear view of the sky. Resolve any obstructions.
There may be local interference affecting GPS signal reception. Try moving the location of the GPS Receiver to improve reception. Weather conditions, solar flares, time of day, and exact satellite position may also effect signal reception; however, these conditions are normally of a short duration.
Poor GPS cable connections or a faulty GPS Receiver can cause the unit not to pick up a signal. If steps 1 and 2 do not resolve the issue, replace the GPS Receiver and its extension cables.
Poor Transmitter power output can also result in the Transmitter not being able to pull the time update. Check voltage at the Transmitter by completing the steps in Transmitter continues to power cycle and does not stay synced
Move the GPS Receiver into a better location; outdoors with a clear view of the sky.
Replace the GPS Receiver and its extension cables.
After replacing all GPS components and still no parentheses, the Transmitter may need to be replaced.
If none of the above steps resolved the issue, the import on the Transmitter may be bad and need replacing.