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Reader Environments Operating Environment A region within which a reader’s RF transmissions are attenuated by less than 90dB (roughly a sphere with a 1km radius) Single-reader environment A single reader operating in the environment Multiple-reader environment # of simultaneously active readers < # of available channels Example: 10 readers operating in 50 channels Dense-reader environment # of simultaneously active readers ? # of available channels Example: 50 readers operating in 50 channels Readers require knowledge of operational deployment and the ability to adjust their RF parameters for a given environment -ie. One non-dense reader in a dense reader deployment will spoil the whole frequency plan |