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Old 05-18-2006, 03:09 PM   #2 (permalink)
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Join Date: Jun 2005
Location: Mississauga, Ontario
Model: 8330
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Cellular repeaters are pretty straightforward devices. At the risk of over simplifying, it's a three part solution:

1) external antenna mounted in an area with a good strong signal
2) a signal amplifier to boost the signal within a specific range of frequencies
3) one or more internal antennae to rebroadcast the amplified signal

I've had some experience with the PowerMax line of products and been quite pleased; they are relatively simple to setup and operate:

Wilson Electronics is also a well established name for this type of product: