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Discuss Reverse camera interference in the Auto Electrician Forum area at ElectrciansForums.co.uk.

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  1. DavidTetlow
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    DavidTetlow EF Member

    Location:
    Folkestone
    Hi all, hoping that you may be able to help me out.

    I just fitted a headunit with large lcd screen into a Ford Kuga. As well I then fitted a wireless reverse camera which is mounted in place of the rear number plate light.

    Camera and transmitter are powered by the reverse light at the back, which transmits image to a receiver at the headunit. The receiver at the headunit is powered by ACC live behind headunit.

    When engaging reverse, both with engine on or off, image appears on screen and is nice and clear.

    Problem arises after driving for a while, say 30 mins, then when engaging reverse, the image appears on screen with terrible interference.

    I’ve read that there are engine noise filters available, and also ground filters. Would any of these help in this situation?
     
  2. DavidTetlow
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    DavidTetlow EF Member

    Location:
    Folkestone
  3. LeeH
    Offline

    LeeH Insert witty monkey comment here. Electrician's Arms

    Location:
    Lincs
    Feed the cam through a relay, use the reverse light supply to pull the relay in.
     
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  4. DavidTetlow
    Offline

    DavidTetlow EF Member

    Location:
    Folkestone
    Thank you. Why would it require a relay? Seems like it’s getting power no problem, a relay would be used to source another 12v feed right?......whereas seems the 12v feed is working already, but i get the interference only after driving for a while
     
  5. PEG
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    PEG Trusted Advisor

    Location:
    Manchester
    Hi,you did say that the camera operated ok,with the engine running,so something else is at play...

    Just out of interest,is the kit a Chinese ebay job?
     
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  6. DavidTetlow
    Offline

    DavidTetlow EF Member

    Location:
    Folkestone
    Yes the image is completely clear with engine running..... only getting heavy interference lines in the image after going out on a drive.....

    I’m pretty sure it’s a Chinese built, was eBay uk supplier but I’d say sourced from China no doubt..... iv used them before, have one in the bmw now and that words perfectly
     
  7. PEG
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    PEG Trusted Advisor

    Location:
    Manchester
    Only reason i mentioned it,was because i have fitted a few,and had some issues,,,

    I stuck one on the back of my Patrol,to view the lining up of my tow-ball. The cameras and monitors,sometimes come with dodges,and occasionally just die.

    Some are a bit sensitive to voltage,and your Kuga,is a known electrical bundle of fun :)

    What with 200 Amp alternators,load shedding,etc you may find that measuring the voltage at the feeds,during the times when it works,and fails,may shine a light on the matter.
     
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  8. DavidTetlow
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    DavidTetlow EF Member

    Location:
    Folkestone
    Thank you..... sounds like this isn’t going to be easy! But gives me somewhere to start
     
  9. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    recently fitted LED headlamp bulbs to van. when headlights are on, i get RFI from them on the radio if the station is a fairly weak signal.
     
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  10. DavidTetlow
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    DavidTetlow EF Member

    Location:
    Folkestone
    I’ve heard of this too..... I haven’t changed headlights so can rule that out...... just very odd as my problem only occurs after a drive out
     
  11. LeeH
    Offline

    LeeH Insert witty monkey comment here. Electrician's Arms

    Location:
    Lincs
    sorry I skimmed your post and thought the issue was when you engaged reverse.

    You could try a suppressor.

    10A Noise Suppressor/Filter - Eliminate Car Radio Noise https://www.amazon.co.uk/dp/B0060GF1AC/ref=cm_sw_r_cp_tai_-JacAbPN7RFHH
     
    • Like Like x 1
  12. DavidTetlow
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    DavidTetlow EF Member

    Location:
    Folkestone

    Is this something similar to what I linked above from Halfords? I could get one today if it’s the same thing
     
  13. PEG
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    PEG Trusted Advisor

    Location:
    Manchester
    I think you may be better off,narrowing down the possibilities,before adding components,suck-it-n-see stylee;)

    If you turn off,lock up,and try again,does stay fuzzy?

    How long is it before it can be retried and work successfully?

    Is it the same scenario,whether day or night?

    Have you tried ALL accessories,when working,and,when fuzzy,to see if there is an improvement/deteriation?

    If you just add extras,invariably,they will be left in position,and you could end up with new issues,side issues,and fresh things to cause other issues.

    Basically,you don't need a dozen street vendors...


    (More Big Issues than you wanted ;))
     
    • Like Like x 1
  14. DavidTetlow
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    DavidTetlow EF Member

    Location:
    Folkestone
    Sounds like a plan, but not sure where to start..... the interference is only happening after a drive, with no accessories on, no heater, no aircon, no headlights on, only thing switched on was a cd playing....... tried already switching engine off when it’s got bad interference, and it doesn’t clear it, only clears after some time when using car again, maybe 30 mins, but then I haven’t tested amount of time it takes to clear
     
  15. DavidTetlow
    Offline

    DavidTetlow EF Member

    Location:
    Folkestone
    Ok so I went out to test a few things......

    Get in the car, camera image is clear.
    Tried radio, cd, headlights on and off, heater controls, pretty everything I could press I did.....

    After 15 minutes driving (doesn’t matter if 15 mins of 40mph or 70mph) then the camera image if badly fuzzy.

    With a fuzzy camera image, tried pressing same things, radio, cd, headlights, heater controls, no difference, image stays fuzzy....... but!!.....with a fuzzy image, if I press the Max button on heater control (puts full heat on high blower speed with front and back window demisters), then miraculously the camera image clears immediately, when I turn off Max button then image stays clear....

    so for now, if image is fuzzy I can press Max button on and hen off to clear it, but would like to figure this out for long term if I can
     
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