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multiple transmitters for one wireless headset

Discussion in 'Electronic Design' started by [email protected], Apr 25, 2007.

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  1. Guest


    I have a Sennheiser HDR140 headset and got 3 transmitter bases that
    work with the headset. each base have 3 channels for three different
    frequencies. what i am trying to do is power up all three
    transmitters, each at one channel transmitting an audio source (so 3
    audio sources, 3 channels). also I put all the transmitters in one
    box. My problem is when I do that, two channels sound good while the
    third one is very static and basically a combination of the other two
    channels. here are the three channels' frequencies: Ch1 = 926.1-MHz,
    Ch2 = 926.8-MHz, Ch3 = 927.5-MHz.

    thanks in advance!
  2. jasen

    jasen Guest

    you've got cross-modulation. , you could try filtering or attenuationg the
    transmitter outputs, but it's probably easier to space them out.

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