preamp

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    connecting pre-amp microphone to ip camera without additional 12v 802af

    Hello guys.i have a hikvision mic enable (not internal) camera.i like preamp microphone cause they gain more sound even the target is 10 mt away. you need 12v to work them which is not a problem with analog cams. my solution is for those WHO use 802af injectors which extands the length.i have...
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