Radio Characteristics - HP Compaq Presario,Presario 2100 User Manual

R C
ADIO HARACTERISTICS
Characteristic
Frequency Band
Modulation Technique
Spreading
Bit Error Rate (BER)
Nominal Output Power
* See "Regulatory Information" on page 26
User Guide
*
Description
2.4 GHz (IEEE 802.11b, IEEE Draft Std 802.11g)
Direct sequence spread spectrum (DSSS)
• CCK for high and medium transmit rate
• DQPSK for standard transmit rate
• DBPSK for low transmit rate
Orthogonal frequency division multiplexing (OFDM)
• 52 subcarriers with BPSK, QPSK, 16-QAM or 64-QAM
• Forward error correction convolutional coding rate: 1/2, 2/3, 3/4
11-chip Barker sequence
–5
Better than 10
• IEEE Std 802.11b: 14 dBm
• IEEE Draft Std 802.11g: 15 dBm
ppm
for country-specific performance characteristics and use restrictions.
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