Satish
Answered On : Nov 22nd, 2007
A Bluetooth module consists primarily of three functional blocks — RF transceiver unit, a baseband link controller unit, and a support unit for link management and host controller interface (HCI) functions.

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Modulation Process used in Bluetooth is GFSK(Gaussian Frequency-Shift Keying)
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Bluetooth uses 0.5 BT Gaussian-filtered two-frequency shift keying (2FSK).
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