Question about XRS-757 Radar Detector

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I need help with my radar

I have this radar and i dont have instrustions if anyone has them please send them to me at

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  • carrie weller Jun 16, 2008

    i do not undersand what the codes are when it goes off..example: it will say x1 and beep. i need to know what they mean so i will know if it is the police-emergency vech or what? any one knows or can help me please e-mail me at

  • Anonymous Jul 12, 2008

    i need instructions for my cobra 360 model no:ESD7000

  • MARKDBOX Jul 12, 2008


  • lemons0419 Oct 27, 2008

    i dont have an instruction manual and i dont know what the different alerts mean like when it says x, ka, k, or ku alert. please email me at if you know the meanings of the different alerts

  • endoftrail64 Mar 01, 2009

    i dont know what the alerts mean va-2,k,ka,x



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Do you have the manual? It sounds like, in your example, the unit is picking up X band at a signal strength of level 1.

Posted on Jun 16, 2008


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Radar detector codes

When any detector "detects" radar, it will produce some form of Audiable sound. If someone is speeding, they need to slow down IMMEDIATELY if they want to avoid a ticket. It doesnt really matter if the radar gun is x, k, ka, ku, etc. You will probably get a ticket if you dont slow down.

Most dectectors will have indicators lights or displays that indicate the x, k, ka, etc., radar signals are actually being detected. This can provide SOME useful information. THe letters simply designate BANDS of frequencies that are used to send the radar beams. It is similar to changing the channel on a radio - k and ka bands use HIGHER frequencies for their radar signals.

X band is the oldest radar band and it is used for police radars AND door openers at supermarkets and other locations. If you drive by a supermarket, your radar detector is likely to go off and it is almost certainly going to be X band. CHeck it out next time you drive by a supermarket with an automatic door opener.

Since the police and the radar companies like to play cat and mouse, newer radar bands have been invented that OBSOLETE the older radar detectors. When the K bands showed up in the police radar guns, the radar detector folks had to have a new product offering that would detect X band and K band. And the race continues to go on even today and now, there are LASER police speed detectors and the new "RADAR" detectors now need LASER detectors as well. If you want to know the exact frequencies of these "bands" (K, Ka, etc), let me know and I will send them to you. But they are operating in the tens of GigaHertz regions.



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Operation Manual needed - PLEASE

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