802.11 Frequency Hopping Spread Spectrum Requirements
(from pp230-240 of 802.11) |
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| Frequency ranges |
| Range in GHz | Geography |
| 2.402 - 2.480 | USA |
| 2.402 - 2.480 | Europe |
| 2.473 - 2.495 | Japan |
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| Number of Channels |
| minimum | hopping set | Geography |
| 75 | 79 | USA |
| 20 | 79 | Europe |
| 10 | 23 | Japan |
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Channel Width: 1 MHz
Hop rate: USA: 75 channels/ 30 seconds = 2.5 hops / sec
Transmit Power Levels
EIRP = 10 mW min
EIRP at or below 100 mW available
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| Temp Range: |
| Classification | range in C | application |
| Type 1 | 0 to 40 | office |
| Type 2 | -30 to 70 | industrial |
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| Data Rate Options |
| Data rate | 1 Mbps | 2 Mbps |
| Modulation | 2 Level GFSK BT=0.5 | 4 Level GFSK |
| Min. Sensitivity | -80 dBm | -75 dBm |
| Input Dynamic Range | -20 dBm to Min Sensitivity | -20 dBm to Min Sensitivity |
| IM | < 30 dBc | < 25 dBc |
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802.11 Direct Sequence Spread Spectrum Requirements
(from pp269-276 of 802.11) |
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| Operating Channels (center frequencies) |
| Channel ID | USA | Europe | Japan |
| 1 | 2412 MHz | N/A | N/A |
| 2 | 2417 MHz | N/A | N/A |
| 3 | 2422 MHz | 2422 MHz | N/A |
| 4 | 2427 MHz | 2427 MHz | N/A |
| 5 | 2432 MHz | 2432 MHz | N/A |
| 6 | 2437 MHz | 2437 MHz | N/A |
| 7 | 2442 MHz | 2442 MHz | N/A |
| 8 | 2447 MHz | 2447 MHz | N/A |
| 9 | 2452 MHz | 2452 MHz | N/A |
| 10 | 2457 MHz | 2457 MHz | N/A |
| 11 | 2462 MHz | 2462 MHz | N/A |
| 12 | N/A | N/A | 2484 MHz |
| BW | 5 MHz | 5 MHz | 26 MHz |
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| Modulation |
| Data Rate | Modulation |
| 1 Mbps | DBPSK |
| 2 Mbps | DQPSK |
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| Transmit power levels |
| Maximum EIRP | Geography | Compliance Document |
| 1000 mW | USA | FCC 15.247 |
| 100 mW | Europe | ETS 300-328 |
| 10 mW/MHz | Japan | MPT ordinance 78 |
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Spectral Mask: @ fc+/-11MHz: -30 dBr; @ fc +/-22 MHz: -50 dBr
Carrier suppression: >15 dB below peak Sin(x)/x power spectrum
Worst case vector error < 0.35
Minimum sensitivity: -80 dBm
Max input level: -4 dBm
Adjacent channel rejection >35 dB
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| Temp Range: |
| Classification | range in C | application |
| Type 1 | 0 to 40 | office |
| Type 2 | -30 to 70 | industrial |
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List of Standards
Governing Specifications and Authorities:
Europe: ETSI, ETS300-328, ETS 300-339; NTAA approved
Japan: RCR; RCR STD-33; MKK approved
USA: FCC, CFR47, Part 15, Section 15.205, 15.209, 15.247; FCC approved
Canada; DOC; GL36; DOC approved
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