Model: XR Series Transmitter with an Internal or External Antenna.
All or some of the below symptoms may be present.
The signal from the Transmitter will only set a clock or show up on a signal meter up to 100 feet or less.
Red LED is flashing on the Transmitter front display.
This may be due to a power issue, a defective Transmitter, or antenna issues.
If the red LED is flashing on the Transmitter, first complete all troubleshooting in topic Red LED flashing and Transmitter GPS communication symbol is not displayed on front display and work through all subsequent troubleshooting topics. Resolve any issues found.
If the red LED is not flashing, check power by completing the steps in Transmitter front display time and date are not correct.
Look for the letter “L” (Loop Lock Failure) behind the time on the Transmitter front display.
Check Transmitter for power issues by completing the steps in Transmitter continues to power cycle and does not stay synced.
Verify antenna connections and placement.
Internal Antenna: verify antenna connection is not cross threaded and the base of the antenna is flat and secured to the top of the Transmitter case. Verify the antenna is straight up vertically and is not touching anything or extremely close to any metal.
External Antenna: verify connections and inspect external antenna. Verify the antenna and cables running to it are in good shape, cables aren’t bent or kinked, and antenna is not mounted with the head of the antenna near other objects on the roof. Detailed inspection steps provided below.
If power to the Transmitter power supply is bad, resolve the issue.
If the UPS (surge protector/battery backup) is defective, bypass it until the UPS can be replaced.
If power to the Transmitter power supply is good, but its output is bad replace the power supply as the first step.
External Antenna: If power to the AMP is bad, replace the sun power supply.
If there is an “LP” behind the time and cannot get it cleared, replace the Transmitter.
Internal antenna: relocate the Transmitter if there are antenna interference issues present at its current location.
External antenna: replace damaged antenna components and/or antenna cables. Relocate the antenna if there are interference issues present at its current mounting location.
If you have completed all troubleshooting steps and still have no signal or it only reaches out less than 100 feet, the Transmitter may need to be replaced.