Question about XRS-757 Radar Detector

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Help! my radar goes off everytime i start my car

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  • Dean Pitts
    Dean Pitts May 11, 2010

    Does your accessory power plug (cigarette lighter plug) have a constant power from your battery? If not, that is why.

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If you live near a cell-phone tower, your radar detector can pick up on the waves coming from it. If you like in an area where radar detectors are legal and Ku band is not used, I recommend turning off the vg2, spectre and Ku bands on your detector. This will not only cut down on some of the "noise" but also make your radar detector more reliable for when you are actually "zapped" by law enforcement.

Posted on Dec 20, 2008

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Posted on Jan 02, 2017

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One potential solution is to try a snap-on RF filter which is available at your local Radio Shack. You would snap this filter around the positive 12V wire leading to your car's cigarette lighter socket. Preferably, if there is enough free slack in the 12V wire leading to the cigarette lighter socket, you would wrap this wire through the RF filter twice before snapping the RF filter closed around the wire.

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