BiLinear amplifiers covering several bands work best in my experience with cellphone coverage in rural areas. I'm pretty sure the original question was for a single-band application, conventional radio scenario. Having said that, I also know BILinear amps can introduce unnecessary complexity and unless that's offset by a better signal to noise ratio your just making a bad problem worse. A spectrum analyzer would answer your questions as part of a site survey to make better informed decisions for your application.
Its also important to consider for the radio system you desire to communicate with that their engineering team is aware of what you intend to do. If you're not careful you run the risk of swamping the front-end of the distant radio system which negatively impacts anyone else attempting use the resource at that same point in time. The passive repeater link points in essence to what I originally mentioned.
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Originally Posted by Hand
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