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Linear bleeds on to my external speaker.

Discussion in 'General CB Services Discussion' started by mr_fx, Mar 4, 2012.

  1. mr_fx

    mr_fx Sr. Member

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    Linear bleeds on to my external speaker. Any ideas? what could I do to stop this? It's in the mobile, it's a Roadpro Titan II 485 and a 4 pill with an external speaker. When I talk it bleeds into my external speaker. Nothing else gets bleed over


     
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  2. how much power are you getting from the 4 pill ?
     
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  3. mackmobile43

    mackmobile43 Jock Supporter

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    in the sig
     
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  4. n0zna

    n0zna W9WDX Amateur Radio Club Member

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    check the lenght of the

    speaker wire...roll it up,or add or take away,its acting like a antenna...73 de JW
     
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  5. mr_fx

    mr_fx Sr. Member

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    Yes sir. my old amp did it too, but it was a lot smaller (150 ish) so not as big of a deal
     
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  6. AudioShockwav

    AudioShockwav Extraterrestrial Admin Staff Member

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    Try wrapping the speaker cable several turns through a ferrite core close to the speaker.

    73
    Jeff
     
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  7. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

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    Try a 0.01 microfarad capacitor across the speaker leads as close to the radio as you can get it. ideally open up the radio and solder the cap across the contacts of the jack.
     
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  8. mackmobile43

    mackmobile43 Jock Supporter

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    Yup
     
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  9. 9C1Driver

    9C1Driver Well-Known Member

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    I had a RoadPro years ago, nice little low powered radio. As I recall it did 14 watts PEP. What kind of 4 pill amplifier do you have that gets 600 honest watts with that low of drive?
     
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  10. psycho

    psycho Supporting Member

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    None that I know of. My class C and B amps might bump 300 watts peak with that low a drive. A TS 500 having the snot driven out of it might do 525 watts peak.
     
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  11. the texas star 500v i had showed half a hair under 500 watts on my astatic 700 meter with 16 pep coming from a uniden washington . the export i had would do 21 pep on the meter and got 600 from the amp .

    yea , not a bird meter , but close enough for my needs considering how RF works in this universe :D .
     
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  12. psycho

    psycho Supporting Member

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    600 watts on a Dosy is roughly 300 watts on a Bird....in other words, you are cooking with gas.
     
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  13. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

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    Yep methane gas to be exact and we all know where methane comes from.
     
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  14. wavrider

    wavrider W9WDX Amateur Radio Club Member

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    Green vegetables?
     
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  15. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

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    I was thinking about a little further along down the manufacturing line specifically the part involving bovines and from where they emit it from.
     
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