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Please Support RF Cafe by purchasing my ridiculously low-priced products, all of which I created. RF & Electronics Symbols for Visio RF & Electronics Symbols for Office RF & Electronics Stencils for Visio T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads These Are Available for Free |
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Wireless LAN (WLAN) Band Specifications
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 |
Copyright: 1996 - 2026 |
About RF Cafe 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 tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: My Daughter's Website: |
