Wireless Mic Noise reduction?

I am wondering what device I can buy to put between my computer and mic to eliminate the high amount of noise I get when trying to record. I have this problem on a Gemini VH-101H wireless mic I bought for $99 on Ebay awhile ago, and always have when using it. I heard Adam Curry uses a wireless, and you almost can't tell. I haved moved since I originally purchased it, and the windscreen fell off somewhere I never could find it again, so I get breath rumble besides the already bad signal. Where might I buy just another windscreen for it, assuming the original one just slipped on and wasn't adhered with stuff that lost hold? Also, what could I buy to reduce the electronic/RF generated noise I always had. I assume that no processing could reduce the breath noise as once it clips out, you're beyond the point of any return.


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