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Characteristics. Operates in the 2.4 GHz range, using Short rangeUp to 10 mAsynchronous (data) and synchronous (voice) service availableBluetooth 1.2Up to 721 kbit/s (with signaling 1 Mbit/s)Bluetooth 2.0 EDR (Enhanced Data Rate), 2004Up to 2.1 Mbit/s (with signaling 3 Mbit/s)Bluetooth 2.1
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1. Bluetooth
2. Characteristics Operates in the 2.4 GHz range, using
Short range
Up to 10 m
Asynchronous (data) and synchronous (voice) service available
Bluetooth 1.2
Up to 721 kbit/s (with signaling 1 Mbit/s)
Bluetooth 2.0 + EDR (Enhanced Data Rate), 2004
Up to 2.1 Mbit/s (with signaling 3 Mbit/s)
Bluetooth 2.1 + EDR (Enhanced Data Rate), 2007
3. Bluetooth Radio FHSS (2.402 GHz - 2.480 GHz; 79 channels)
Fast FHSS (1600 hops/s)
GFSK modulation, 1M Symbol/s
2 FSK modulation yields 432 kbit/s bidirectional / 721 kbit/s asymmetrical
EDR, QPSK or 8PSK modulations
4. Piconets Nodes can assume the role of master or slave
One or more slaves can connect to a master, forming a piconet
The master sets the hopping pattern for the piconet, and all slaves must synchronize to that pattern
Maximum of 7 slaves controlled by a master (3-bit addresses used)
Other operational states
Parked: device does not participate in the piconet, but is known to the master and can be quickly reactivated
Standby: device does not participate in the piconet
5. Piconet