User's Manual

Universal Scientific Industrial Corp.
Doc No. Rev
1.4
Date.
2011/12/09
Page
8
Description
Product Specification – WM-G-MR-09-Ref2
5.5 RADIO SPECIFICATION
Over full range of values specified in the “Recommended Operation Condition” unless specified
otherwise.
Features Description
Frequency Band
2.4 GHz ISM Band
Number of selectable Sub
channels
11 channels
Modulation OFDM, DSSS (Direct Sequence Spread Spectrum), DBPSK,
DQPSK, CCK , 16QAM, 64QAM
Supported rates 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54 Mbps
Maximum receive level - 10dBm (with PER < 8%)
Carrier Frequency Accuracy +/- 25ppm
(crystal: 38.4MHz +/-5ppm in 25
0
C)
Output Power
Data Rate
Typical (3.3V, 25
degree C)
Maximum (3.3V, 25
degree C)
Maximum (Full temperature and
voltage range)
1, 2, 5.5, 11Mbps 12 dBm 12 dBm +1.0 /-2.0
6, 9 and >12Mbps 12 dBm 12 dBm +1.0 /-2.0
802.11g EVM Requirement
Item Data Rate (Mbps) Relative Constellation Error (dB) EVM (%RMS)
1 6 (BPSK) -5 56.2
2 9 (BPSK) -8 39.8
3 12 (QPSK) -10 31.6
4 18 (QPSK) -13 22.4
5 24 (16-QAM) -16 15.8
6 36 (16-QAM) -19 11.2
7 48 (64-QAM) -22 7.9
8 54 (64-QAM) -25 5.6
802.11b EVM
Item Data Rate (Mbps) EVM (%RMS)
1 1 (BPSK) 35%
2 2 (QPSK) 35%
3 5.5 (QPSK) 35%
4 11 (QPSK) 35%
Sensitivity
Receiver Characteristics
( 3.3V, 25 degree C )
Typical
(3.3V, 25
degree C)
Maximum
(3.3V, 25
degree C)
Maximum (Full
temperature and
voltage range)
Unit
PER <8%, Rx Sensitivity @ 11 Mbps -85 -83 -81 dBm
PER <8%, Rx Sensitivity @ 1 Mbps -91 -89 -87 dBm
PER <10%
,
Rx Sensitivity @ 6 Mbps -86 -84 -82 dBm
PER <10%, Rx Sensitivity @ 54 Mbps -70 -68 -66 dBm
12 dBm +1.0 /-2.0
12 dBm +1.0 /-2.0