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λã  >> ИI(y)YӍ ohϵy(tng)„ ġڵFWiFiՄohϵy(tng)ɔ_}
ġڵFWiFiՄohϵy(tng)ɔ_}
•rg2013-7-5 15:38:07  ݋    С     ֙CL


ǰ: 20127ԁڵF߿ھͭh(hun)о܇m(x)̖ϵy(tng)ܸɔ_l(f)ͣϡ11ԁڰl(f)Δ(sh)ll(f)˸猦Fȫ\І}ձPע{(dio)ijYՓǣ˿SWiFiɔ_˵F̖ϵy(tng)ġ܇-ءָͨ܇ͣyʽWiFi·ʹ2.4GllǺϷڟohϵy(tng)Ҳͬӵĸɔ_}

푾W(wng)YӍ

20127ԁڵF߿ھͭh(hun)о܇m(x)̖ϵy(tng)ܸɔ_l(f)ͣϡ11ԁڰl(f)Δ(sh)ll(f)˸猦Fȫ\І}ձPע{(dio)ijYՓǣ˿SWiFiɔ_˵F̖ϵy(tng)ġ܇-ءָͨ܇ͣyʽWiFi·ʹ2.4GllǺϷڟohϵy(tng)Ҳͬӵĸɔ_}

ohϵy(tng)gcðl(f)չѸѳɞhϵy(tng)Ҫl(f)չڅ֮һohϵy(tng)вòmֵČr׃ҪƉĕԭbϵy(tng)SoҪľϻڱܵȃ(yu)cܵ߶˕hԼ͕hĵA

ohϵy(tng)Ҫlohϵy(tng)ͼtohϵy(tng)

1lohϵy(tng)

lָl300kHz~30GHz(3.0x105 ~3.0x1010Hz)늴Ųڕhϵy(tng)ğoҪʹ433MHz2.4GHz5GHzȎׂISM_lΣԻWiFi(2.4GHz)glohϵy(tng)鳣ҊĿǰ‡BOSCH‡݁BeyerdynamicrTelevicȎׂWƷƺͲЇƷƶ_l(f)lohϵy(tng)a(chn)Ʒ

lohϵy(tng)ă(yu)cǰbһϵy(tng)ֻһocϵKݔx󣨿_30ϣ

lohϵy(tng)

lohϵy(tng)ȱcܟo늸ɔ_o늸ɔ_o̎ڣyA֪wCҕ_DOȶlϵy(tng)a(chn)ɔ_h֮glohϵy(tng)Ҳ໥ɔ_lcYԴҲlRoõrNoϵy(tng)WiFiO{O䡢ovCoKԒoͶӰCoˡoIPп؟o|ȣYԴɔ_ڇ(ni)ĸI(y)չϣlohϵy(tng)ܬF(xin)ʾҲܸɔ_

(j)PҎ(gu)P{(dio)2.4GHzlΰl(f)书ֵP}֪ͨ(Ųo[2002]353̖)ڶlQ2.4GHzloW(wng)oϵy(tng){gOccccUlͨϵy(tng)ȸo_վĹlҲf2.4GHzڷl(unlicense)ϰl(f)书ƵȼgҪĸoͨO估I(y)ƌWt(y)ȷǟoͨOʹ ˳F(xin)ڵFWiFi¼ҲͲyISM_l5GHzϵy(tng)F(xin)ɔ_ҲǕrg}

⣬lдoC˽ʹÔ(sh)(j)ܼgҲoC` ߿ͬһSҵĮa(chn)ƷڕhMи` OÑܴat漰ˆT톖}

lohϵy(tng)ҪڌɿԡҪ̫ߵĕhͬһ(ni)Ҳ˰blohϵy(tng)

F(xin)ЇҘ˜GB 50799-2012ӕhϵy(tng)OӋҎ(gu)4.2.5~4.2.7lҲ_Ҏ(gu)ͬһ(ni)bןohӑՓϵy(tng)rڕcϵy(tng)ͬlεlO乤r˲lhӑՓϵy(tng)ohӑՓϵy(tng)бԺͷɔ_Ҫr˲üt⾀hӑՓϵy(tng)üt⾀hӑՓϵy(tng)rTt⾀й¶ʩ

lʽ2.4G̖^໥ɔ_й

2tohϵy(tng)

tohϵy(tng)ԲL830~950nm3.16~3.61x1014Hzļt⾀ݔ|(zh)t⾀пҊݔ?sh)ܴ͸͸wh҉ڣڹⴰȣԺܺõرC˕hıҼtohϵy(tng)ܟo늸ɔ_h֮gҲl(f)ɔ_ЩĹ(ji)ܟCɔ_}Ҳѽ(jng)Qˣt⾀ʽdzmϕhŒϣڟoʽͬ•gt⾀ͬ•gϵy(tng)̭˻lͬ•gϵy(tng)

t⾀ʽ̖ܴ͸hҲl(f)ɔ_

tohϵy(tng)IJ֮̎Ҫڣ΂t⾀հl(f)̖w󣨸w돽s10ͨ^BӶհl(f)̖w͕мt⾀հl(f)İb(sh)λҪ(j)F(xin)h(hun)MӋ

tohϵy(tng)ɼ“(lin)հl(f)

tohϵy(tng)ģMtohϵy(tng)͔(sh)ּtohϵy(tng)ձFǣAudio-TechnicaTOAƷƳģMtohϵy(tng)ģMlg|(zh)ֻl200Hz~4.5kHz-3dB50dB񌣘I(y)ҕlϵy(tng)Ĕ(sh)ֻѳɞl(f)չڅݣģMtݔlѽ(jng)ϵy(tng)׵ĔU•ϵy(tng)ҕl̎ϵy(tng)

(sh)ּtohϵy(tng)dirATC-(sh)ּtlݔcƼg|(zh)(yu)Խ_l20Hz~20kHz-3dB80dB^ğohϵy(tng)Q(sh)ּtohϵy(tng)χH˜IEC 61603-7ԺͲͬH˜ʵĔ(sh)ּtͬ•gϵy(tng)ʹ(sh)ּtohϵy(tng)_늣TAIDEN2008l(f)

 

(sh)ּtohϵy(tng)

(sh)ּt/ģMtohϵy(tng)l푌

ЇҕhĹʮgh˔(sh)ּtohϵy(tng)̽Orֻÿh҃(ni)AȰb(sh)ּtհl(f)Ҳʹӵļtհl(f)hԪҪrʹhҲֿ׃hҲԺϲֲĶhҶ໥ɔ_

ЇҕhđÔ(sh)ּtohϵy(tng)

3YZ

ڕhϵy(tng)ÈϵȫɿǕhϵy(tng)OӋҪԭtoa(chn)Ʒ䑪ԽԽlgğohϵy(tng)ɱؕܵo늸ɔ_ϣohϵy(tng)İȫɿԆ}ҕ


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