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Wireless LAN (WLAN) Band Specifications
Cell phone market share 2001 pie chart - RF Cafe

 

Source: Strategy Analytics Inc. (chart by RF Cafe)

 

WLAN Spectral Masks (802.11a/b/g)

Wireless Spectrum Chart, by QRC Technologies

 

 

 

Network
Standard		 IEEE 802.11b IEEE 802.11a ETSI BRAN
HiperLAN1		 ETSI BRAN
HiperLAN2
Access
Method		 CSMA/CA, SSMA CSMA/CA TDMA/EY-NPMA TDMA/TDD
Modulation CCK
(8 complex
chip spreading)		 64 QAM-OFDM
16 QAM-OFDM
QPSK-OFDM
BPSK-OFDM		 GMSK/FSK 64 QAM-OFDM
16 QAM-OFDM
QPSK-OFDM
BPSK-OFDM
Data Rate
(Mbits/s)		 1, 2, 5.5 and 11 6, 9, 12, 18, 24,
36, 48 and 54		 23 (HBR)
1.4 (LBR)		 6, 9, 12, 18, 27,
36, 48 and 54
Frequency Band
(MHz)		 2,400 to 2,483.5 5,150 to 5,250
5,250 to 5,350
5,725 to 5,825		 5,150 to 5,300
limited in some
countries to
5,150 to 5,250		 5 GHz bands
currently under
study
Channelization 25/30 MHz spacing
3 channels		 20 MHz
channel spacing		 23.5294 MHz (HBR)
3 channels in
100 MHz and
5 channels in
150 MHz
1.4 MHz (LBR)		 20 MHz channel
spacing
4 channels in
100 MHz
Transmit
Power		 1,000 mW EIRP
100 mW EIRP
10 mW/MHz EIRP		 5,150 to 5,250
10 mW/MHz
200 mW EIRP in
20 MHz channel
5,250 to 5,350
1 W EIRP

 

5,725 to 5,825
4 W EIRP		 Three different
classes of power
levels depending
on country
administration
1 W EIRP
100 mW EIRP
10 mW EIRP		 Power limits
currently under
study
Triad RF Systems PCB Directory (Design)
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Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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