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Guide
California Vehicle Code section 28150 addresses equipment that jams or interferes with speed measurement; it is distinct from simply receiving radar signals. Mounting rules also matter, so check current code and keep the windshield view clear.
California Vehicle Code section 28150 prohibits a vehicle from being equipped with a device designed or capable of jamming, scrambling, neutralizing, disabling or otherwise interfering with law-enforcement speed measurement. A passive receiver that detects signals is a different type of device; consult the current code and qualified legal advice for a specific situation.
A detector listens for radar or laser signals and alerts the driver. A jammer is designed to interfere with a measurement. The distinction matters in California law and under federal communications rules.
California restricts objects attached to vehicle windows that obstruct or reduce clear vision, with specific statutory exceptions. Do not assume every mount location is permitted: review Vehicle Code section 26708 and prioritize an unobstructed view.
Additional federal rules can apply to commercial motor vehicles, and other states may impose their own restrictions. Check vehicle classification and each jurisdiction on the route rather than relying on California passenger-car guidance.
Read the current California Vehicle Code text and relevant federal sources. Manufacturer pages explain device functions but do not determine whether a particular installation or use complies with law.
Common questions
California Vehicle Code section 28150 specifically prohibits devices designed or capable of interfering with speed measurement. For passive detectors, review current statutes and get legal advice if your circumstances are unclear.
Section 28150 prohibits equipment designed or capable of jamming or interfering with law-enforcement speed measurement. Federal communications restrictions may also apply to radio-frequency jammers.
Window-obstruction rules under Vehicle Code section 26708 apply. Check the current exceptions and position any device so it does not obstruct your clear view.
The text of section 28150 refers to radar, laser and other electronic speed-measurement devices. Review the current statute for its full scope.
Keep exploring
Rules depend on where you drive and whether a device only receives signals or actively interferes with enforcement equipment. Start with state statutes and federal guidance before choosing or mounting equipment.
A radar detector receives signals; a jammer attempts to interfere with a speed-measurement system. Those are different technologies, and active interference can carry serious legal consequences.
Escort’s Redline 360c lists a three-antenna design, while the MAX 360c MKII uses a dual-antenna platform. Compare the published features and check the exact generation before buying.
The Uniden R8 pairs dual low-noise amplifiers with front and rear directional awareness. Compare it with the R7 and R4 by the features documented for each model.