Jun 10, 2003 #1 J johan_tr2000 Full Member level 1 Joined Jan 7, 2002 Messages 98 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,288 Activity points 763 Hi all, I just wonder what kind of modulation they used for wireless internet communication at 2.4Ghz or 5GHz. Any one have a good e-book or link for this topics? Pls share. Thx in advance Tr2000
Hi all, I just wonder what kind of modulation they used for wireless internet communication at 2.4Ghz or 5GHz. Any one have a good e-book or link for this topics? Pls share. Thx in advance Tr2000
Jun 10, 2003 #2 Y yellowtooth Full Member level 3 Joined Aug 23, 2001 Messages 173 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,296 Activity points 1,626 wireless communication ,but why internet ? do U mean 802.11a & b ? U can search in by google with key word...
wireless communication ,but why internet ? do U mean 802.11a & b ? U can search in by google with key word...
Jun 10, 2003 #3 Element7k Advanced Member level 1 Joined May 7, 2003 Messages 434 Helped 26 Reputation 52 Reaction score 19 Trophy points 1,298 Location TherealLapland Activity points 4,278 Hi, the best thing is to look for out IEEE 802.11 standards. 802.11, uses Frequency Hopping Spread Spectrum 802.11b uses Direct Squence Spread Spectrum 802.11a operates at 2.4 & 5 GHz and use Orthogonal Frequency Division Multiplexing. Hope it helps. Element7k
Hi, the best thing is to look for out IEEE 802.11 standards. 802.11, uses Frequency Hopping Spread Spectrum 802.11b uses Direct Squence Spread Spectrum 802.11a operates at 2.4 & 5 GHz and use Orthogonal Frequency Division Multiplexing. Hope it helps. Element7k
Jun 10, 2003 #4 Kit-the-great Full Member level 3 Joined Mar 30, 2002 Messages 150 Helped 5 Reputation 10 Reaction score 3 Trophy points 1,298 Location Russia Activity points 1,318 The most of the commercial radiomodems uses the phase-shift keying signal. Some of 5.2 GHz modems uses the amplitude modulation of signal. Best regards, Kit-the-great
The most of the commercial radiomodems uses the phase-shift keying signal. Some of 5.2 GHz modems uses the amplitude modulation of signal. Best regards, Kit-the-great
Jun 11, 2003 #5 J johan_tr2000 Full Member level 1 Joined Jan 7, 2002 Messages 98 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,288 Activity points 763 Hi, Any clue, link or e-book about this, pls Rgds, TR2000
Jun 11, 2003 #6 Y yellowtooth Full Member level 3 Joined Aug 23, 2001 Messages 173 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,296 Activity points 1,626 www.Intersil.com a company who turn out 802.11 chip.
Jun 11, 2003 #7 Y yellowtooth Full Member level 3 Joined Aug 23, 2001 Messages 173 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,296 Activity points 1,626 A PDF I DL before: maybe is useful 2 U.
Jun 11, 2003 #8 H harlan1 Junior Member level 3 Joined Apr 2, 2002 Messages 31 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Poland Activity points 170 IEEE 802.11 Hi johan_tr2000, Take the following app. notes from the @gilent site: Application Note 1380-1 (RF Testing of Wireless LAN Products) Application Note 1380-2 (IEEE 802.11 Wireless LAN PHY Layer (RF) Operation and Measurement) Rgds, harlan1
IEEE 802.11 Hi johan_tr2000, Take the following app. notes from the @gilent site: Application Note 1380-1 (RF Testing of Wireless LAN Products) Application Note 1380-2 (IEEE 802.11 Wireless LAN PHY Layer (RF) Operation and Measurement) Rgds, harlan1