Whistler XTR338 Laser Owners Manual
![Whistler XTR338 Laser Radar Detector manual cover](/images/17420db4c058ed1c8809a8d1/thumbs/thumb175x175.webp)
To install the Whistler XTR338, mount the detector on your windshield using the provided suction cups. Ensure it is level and not obstructed by the wipers. Connect the power cord to the cigarette lighter socket and align the detector parallel to the road.
First, check the power cord connection and the cigarette lighter socket for any issues. Ensure the socket is functioning by testing with another device. If the problem persists, inspect the fuse in the power cord and replace it if necessary.
To reduce false alerts, activate the City Mode to filter out non-police radar sources commonly found in urban areas. Adjust the sensitivity settings and ensure the detector is properly mounted without obstructions.
Regularly clean the sensor lens with a soft, lint-free cloth to maintain optimal performance. Inspect the power cord for wear and tear and ensure the detector is securely mounted. Update firmware if available.
Yes, the Whistler XTR338 is equipped to detect laser (LIDAR) signals. However, due to the narrow beam of a laser, detection typically occurs when the vehicle is already targeted.
To reset the Whistler XTR338 to factory settings, turn off the device, press and hold the 'Quiet' and 'City' buttons simultaneously, and then turn the detector back on. Release the buttons when you see the reset confirmation.
A 'POP' alert indicates the detection of a brief radar burst used by some radar guns. The Whistler XTR338 can detect these bursts and alert you to their presence.
Continuous beeping may indicate a nearby radar source. Check your surroundings for potential radar signals. If beeping persists without visible sources, inspect the detector for proper installation and settings.
Currently, the Whistler XTR338 does not support firmware updates. Ensure you have the latest model for optimal performance and features.
To test the functionality, drive past known speed enforcement areas or use a radar gun if available. The detector should alert you to the presence of radar signals. Regular testing ensures reliability.