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  1. #11
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    May 2016
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    Are these new lights LED's? Some of the ones being sold are notorious for creating spurious radio frequency emissions that show up as interference. (RFI) The FCC considers these lights and their drivers which cause RFI as "unintentional radiators" and while there are rules...well, you know what rules are meant for...

    Are you getting static in the radio or is it only a drop in volume. While RFI can overwhelm a radio receiver and de-sensitize it causing a loss in volume, often you'll hear static. Also, RFI loves to run around on wires, so perhaps the lights are not emitting into the "air" so much, but are hanging out on your power lines. The USB connection that you successfully hooked up to probably has some RF isolation built in which would point to the interference on the lines. Lucky you...

    I'd try this...hop on down to your local electronics store, or visit Amazon and buy some clip on ferrite coils to place on the radio and light power lines. They're cheap and simply clamp over your power lines with self locking snaps. See if that helps...
    Last edited by rickster; 05-12-2018 at 08:43 AM.

  2. #12
    Super Moderator MJC's Avatar
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    May 2016
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    Mid Hudson Valley, 60 miles N of NYC
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    Yes the radio goes lower and there is static. So I put the ferrite coils on the power lines of the radio and the lights? Just the + side or the - too? Do I need one on the anntena cable too? I will have to order them, I think 3mm is good for the power lines and maybe 9 for the anntena cable, but not sure. Do I put the FC on bare wire or over the wire with the casing on it?
    I think you are right about the interference, I moved the anntener from up front to the top case box and the anntener cable ow goes right over the battery box where the power lines are for the radio and the lights. Thank you for the info!

    I will wait to order the FC until I know what size to get (over wire or on bare wire and if I put one on the anntener wire).

    Thanks to everyone for the help!
    BTW, I did get to ride at night and check out the driving lights. They work great, I can now see like it is daytime!

  3. #13
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    Jan 2018
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    St Petersburg fl.
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    They snap right over the insulated wire and I don’t think they have to fit super tight. You can run both the – and + through the same one and also loop them around a couple of times for good measure. I’m not sure about the antenna. I think it is to keep the power wire from emitting interference where the antenna just receives. If there is an aftermarket stereo installer near you they probably deal with this issue all the time with the popularity of led and hid lights now days and may have them in stock in various sizes. Also any 4 wheel drive accessory dealer who sells light kits in your area may also be able to help with information.

    http://betterautomotivelighting.com/...ed-headlights/

    https://www.youtube.com/watch?v=WU1caDBn2U4
    CTX700ND DCT/ABS

  4. #14
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    May 2016
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    Foothills of the Sierra Nevada Mountains in Northern California
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    mjc...I like 12MANY's suggestion to take your bike to a stereo shop. He's right...they deal with this frequently. An industrial two-way radio shop would also be a good choice.

  5. #15
    Super Moderator MJC's Avatar
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    Mid Hudson Valley, 60 miles N of NYC
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    Thanks guys. I went to the only car stereo shop in my town. He looked at the bike, radio, lighs etc. Said all was hooked up right. He said to put the Ferrite coils, one on each light just after where the lights are mounted, one on the wires from the battery that power the lights. He did not have any in stock and said it was better to pay more for the lights and the FC would have been on the wires/lights. He also said they are not needed on the radio wires or the antener.
    I asked if he could take care of this for me and he said, He would install a new wiring kit with the FC installed on the wires from the factory, cost would be $80. I passed.
    So I will order the FC online and install them.
    Thanks for everyones help.

  6. #16
    Member mtvic's Avatar
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    Aug 2017
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    N. of Tampa Bay, FL
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    Not sure I agree with cause due to less expensive lights. Mine were very inexpensive, around $25 and work perfect and don't have this issue. My stereo however is the BOSS made for bikes and doesn't have FM reception, only Bluetooth. If I want FM I can access it from an app like "IHeart" or "Tune in."

    Does your stereo have Bluetooth? If so, did it also have this problem if you were using it?
    2014 CTX 700 dct
    2016 NM4

  7. #17
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    Quote Originally Posted by mtvic View Post
    Not sure I agree with cause due to less expensive lights. Mine were very inexpensive, around $25 and work perfect and don't have this issue. My stereo however is the BOSS made for bikes and doesn't have FM reception, only Bluetooth. If I want FM I can access it from an app like "IHeart" or "Tune in."

    Does your stereo have Bluetooth? If so, did it also have this problem if you were using it?
    I'm glad that your light install was trouble free mtvic. But your experience and that of MJC could be different for a couple of reasons. The primary one is that MJC is using FM radio which occupies a VHF frequency band between 88 mhz and 108 mhz. Bluetooth like you are using is in the 2400mhz band (2.4ghz). The other reason could be that the lights are made differently. One light may cause RFI, the other may not. It depends on how the lights were made and if RFI mitigation was part of their design criteria.

    That said, the first two things to look at in a case like MJC's would be power and RFI. He said that the power checked out. While it requires some expensive equipment to diagnose an interference problem directly, one way to deal with it is to put the ferrite coils on the lines and see if the problem goes away... In that case the diagnostic and the fix are the same if the coils solve the issue.

    If you look in an electronics book, it will tell you that FM stands for frequency modulation. Those who have been in the radio industry and who have witnessed how mysteriously radio waves behave will tell you that FM stands for "XXXXXXX Magic".

    Check this out: http://betterautomotivelighting.com/...ed-headlights/
    Last edited by rickster; 05-15-2018 at 12:40 PM.

  8. #18
    Super Moderator MJC's Avatar
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    Quote Originally Posted by mtvic View Post
    Not sure I agree with cause due to less expensive lights. Mine were very inexpensive, around $25 and work perfect and don't have this issue. My stereo however is the BOSS made for bikes and doesn't have FM reception, only Bluetooth. If I want FM I can access it from an app like "IHeart" or "Tune in."

    Does your stereo have Bluetooth? If so, did it also have this problem if you were using it?
    On the stereo I have BT, UBS port, AM FM, BT to phone works fine, BT to speaker in my helmet for UBS works fine, to both helmet and speakers on bike. AM/FM only goes to speakers on bike not to (BT) speakers in my helmet.
    The stereo works fine with BT to my GPS (to on bike speakers).
    My intercom system is EJEAS-TTS, helmet mounted has bult in FM, BT to phone, and I can talk/hear upto 4 riders. I can use phone BT to Helmet and use IHeart too.
    The only thing the DLights make not work right is the FM in the stereo' the FM on my EJEAS-TTS works fine with the D Lights on.
    The D Lights where ? $25 I think. Switch and wires where $15.
    Radio was $30 +/-, Radio holder, speakers, antena I had but about $70.
    The EJEAS-TTS was $75 for two units and 4 sets of speakers and 2 mikes.
    GPS was $35 on ebay. homemade cover over it.
    UBS with 500+ songs on it, priceless. If the EJEAS-TTS had a UBS port I would remove the stereo unit.
    If I knew how to take all the songs on the UBS and install them on my phone That would be nice too. But I have no idea how to store (or even how to find songs) for my phone. Using the app with IHeart is OK but once in the country mnts not so good.
    WOW now that I listed all these things seems like a lot.....lol.

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