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c(din)M(fi)ͨԒϺV݋g(sh)M(fi)ע(c)(hu)TO(sh)(y)ղھͶ
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λã  >> (y) ИI(y)YӍ o(w)(hu)hϵy(tng)„ ġڵFWiFiͣՄo(w)(hu)hϵy(tng)ɔ_(wn)}
ġڵFWiFiՄo(w)(hu)hϵy(tng)ɔ_(wn)}
•r(sh)g2013-7-5 15:38:07  ݋    С     ֙C(j)L(wn)


ǰ: 20127ԁ(li)ڵF߿ھͭh(hun)о܇(ch)m(x)̖(ho)ϵy(tng)ܸɔ_l(f)ͣ11ԁ(li)ڰl(f)Δ(sh)ll(f)˸猦(du)Fȫ\(yn)І(wn)}ձP(gun)ע{(dio)ijY(ji)Փǣ˿SWiFiɔ_˵F̖(ho)ϵy(tng)ġ܇(ch)-ءָͨ(do)܇(ch)ͣyʽWiFi·ʹ2.4GllǺϷڟo(w)(hu)hϵy(tng)(yng)Ҳͬӵĸɔ_(wn)}

푾W(wng)YӍ

20127ԁ(li)ڵF߿ھͭh(hun)о܇(ch)m(x)̖(ho)ϵy(tng)ܸɔ_l(f)ͣ11ԁ(li)ڰl(f)Δ(sh)ll(f)˸猦(du)Fȫ\(yn)І(wn)}ձP(gun)ע{(dio)ijY(ji)Փǣ˿SWiFiɔ_˵F̖(ho)ϵy(tng)ġ܇(ch)-ءͨţָ(do)܇(ch)ͣyʽWiFi·ʹ2.4GllǺϷڟo(w)(hu)hϵy(tng)(yng)Ҳͬӵĸɔ_(wn)}

(li)o(w)(hu)hϵy(tng)g(sh)c(yng)ðl(f)չѸѳɞ(hu)hϵy(tng)Ҫl(f)չڅ(sh)֮һo(w)(hu)hϵy(tng)вòm(yng)(hu)(chng)ֵČ(sh)r(sh)׃ҪƉĕ(hu)(chng)ԭbޡϵy(tng)So(h)Ҫ(dn)ľϻڱܵȃ(yu)c(din)ܵ߶˕(hu)h(chng)Լ͕(hu)hĵA

o(w)(hu)hϵy(tng)Ҫlo(w)(hu)hϵy(tng)ͼto(w)(hu)hϵy(tng)

1lo(w)(hu)hϵy(tng)

lָl300kHz~30GHz(3.0x105 ~3.0x1010Hz)늴Ųڕ(hu)hϵy(tng)ğo(w)(yng)Ҫʹ433MHz2.4GHz5GHzȎׂ(g)ISM_(ki)lԻWiFi(2.4GHz)g(sh)lo(w)(hu)hϵy(tng)鳣Ҋ(jin)Ŀǰ‡(gu)BOSCH‡(gu)݁(dng)Beyerdynamicr(sh)TelevicȎׂ(g)WƷƺͲЇ(gu)Ʒƶ_(ki)l(f)lo(w)(hu)hϵy(tng)a(chn)Ʒ

lo(w)(hu)hϵy(tng)ă(yu)c(din)ǰbһ(g)ϵy(tng)ֻһ(g)o(w)c(din)ϵKݔx󣨿_(d)30ϣ

lo(w)(hu)hϵy(tng)

lo(w)(hu)hϵy(tng)ȱc(din)ܟo(w)늸ɔ_(dng)o(w)늸ɔ_o(w)̎yA(y)֪wC(j)ҕ_(ti)D(zhun)O(sh)ȶ(hu)(du)lϵy(tng)a(chn)ɔ_(hu)h֮glo(w)(hu)hϵy(tng)Ҳ໥ɔ_lc(din)YԴҲlRo(w)õrNo(w)ϵy(tng)WiFiO(sh)䡢{(ln)O(sh)o(w)(du)vC(j)o(w)KԒo(w)ͶӰC(j)o(w)(bio)o(w)IP(pn)п?z)o|ȣYԴɔ_ڇ(gu)(ni)ĸ(zhun)I(y)չ(hu)lo(w)(hu)hϵy(tng)ܬF(xin)(chng)ʾҲ?yn)ܸɔ_

(j)(gu)P(gun)Ҏ(gu)P(gun){(dio)2.4GHzlΰl(f)书ֵP(gun)(wn)}֪ͨ(Ųo(w)[2002]353̖(ho))ڶlQ(chng)2.4GHzlo(w)W(wng)o(w)ϵy(tng){(ln)g(sh)O(sh)c(din)(du)c(din)c(din)(du)c(din)U(ku)lͨϵy(tng)ȸ(li)o(w)_(ti)վĹlҲf(shu)2.4GHzڷl(unlicense)ϰl(f)书Ƶȼg(sh)Ҫĸ(li)o(w)ͨO(sh)估I(y)ƌW(xu)t(y)ȷǟo(w)ͨO(sh)ʹ ˳F(xin)ڵFWiFi¼ҲͲyISM_(ki)l5GHzϵy(tng)F(xin)ɔ_ҲǕr(sh)g(wn)}

⣬lдo(w)C˽ʹÔ(sh)(j)ܼg(sh)Ҳo(w)C?yn)` (tng)߿ͬһSҵĮa(chn)Ʒڕ(hu)hM(jn)и` (tng)O(sh)Ñܴat漰ˆT톖(wn)}

lo(w)(hu)hϵy(tng)Ҫ(yng)ڌ(du)ɿҪ̫ߵĕ(hu)h(chng)ͬһ(ni)Ҳ˰blo(w)(hu)hϵy(tng)

F(xin)Ї(gu)Ҙ(bio)(zhn)GB 50799-2012ӕ(hu)hϵy(tng)O(sh)Ӌ(j)Ҏ(gu)4.2.5~4.2.7l(du)Ҳ_Ҏ(gu)ͬһ(ni)bןo(w)(hu)hӑՓϵy(tng)r(sh)ڕ(hu)(chng)cϵy(tng)ͬlεlO(sh)乤r(sh)˲l(hu)hӑՓϵy(tng)o(w)(hu)hӑՓϵy(tng)бԺͷɔ_Ҫr(sh)˲üt⾀(hu)hӑՓϵy(tng)üt⾀(hu)hӑՓϵy(tng)r(sh)(yng)(du)T(mn)t⾀й¶ʩ

lʽ2.4G̖(ho)^(gu)໥ɔ_й

2to(w)(hu)hϵy(tng)

to(w)(hu)hϵy(tng)ԲL(zhng)830~950nm3.16~3.61x1014Hzļt⾀ݔ|(zh)t⾀пҊ(jin)ݔ?sh)ܴ͸͸w(hu)h҉ڹⴰȣԺܺõرC˕(hu)hıҼto(w)(hu)hϵy(tng)ܟo(w)늸ɔ_(hu)h֮gҲ(hu)l(f)ɔ_ЩĹ(ji)ܟCɔ_(wn)}Ҳѽ(jng)Qt⾀ʽdzmϕ(hu)h(chng)(yng)Œ(sh)ڟo(w)ʽͬ•g(yng)t⾀ͬ•gϵy(tng)̭˻lͬ•gϵy(tng)

t⾀ʽ̖(ho)ܴ͸ڣ(hu)hҲ(hu)l(f)ɔ_

to(w)(hu)hϵy(tng)IJ֮̎Ҫڣ?jin)΂(g)t⾀հl(f)̖(ho)w󣨸w돽s10ͨ^(gu)BӶ(g)հl(f)̖(ho)w͕(hu)(chng)мt⾀հl(f)İb(sh)λҪ(j)F(xin)(chng)h(hun)M(jn)Ӌ(j)

to(w)(hu)hϵy(tng)ɼ(j)“(lin)(g)հl(f)

to(w)(hu)hϵy(tng)ģMto(w)(hu)hϵy(tng)͔(sh)ּto(w)(hu)hϵy(tng)ձFǣAudio-TechnicaTOAƷƳģMto(w)(hu)hϵy(tng)ģMlg(sh)|(zh)ֻl200Hz~4.5kHz-3dB50dB(zhun)I(y)ҕlϵy(tng)Ĕ(sh)ֻѳɞl(f)չڅ(sh)ģMtݔlѽ(jng)ϵy(tng)׵ĔU(ku)•ϵy(tng)ҕl̎ϵy(tng)

(sh)ּto(w)(hu)hϵy(tng)dirATC-(sh)ּtlݔcƼg(sh)|(zh)(yu)Խ_(d)l20Hz~20kHz-3dB80dBϣ^ğo(w)(hu)hϵy(tng)Q(sh)ּto(w)(hu)hϵy(tng)χ(gu)H(bio)(zhn)IEC 61603-7ԺͲͬ(gu)H(bio)(zhn)Ĕ(sh)ּtͬ•gϵy(tng)ʹ(sh)ּto(w)(hu)hϵy(tng)_(ti)늣TAIDEN2008l(f)

 

(sh)ּto(w)(hu)hϵy(tng)

(sh)ּt/ģMto(w)(hu)hϵy(tng)l푌(du)

Ї(gu)(gu)ҕ(hu)hĹʮg(hu)h˔(sh)ּto(w)(hu)hϵy(tng)̽O(sh)r(sh)ֻÿ(g)(hu)h҃(ni)A(y)Ȱb(sh)ּtհl(f)Ҳʹ(dng)ļtհl(f)(hu)hԪҪr(sh)(dng)ʹ(hu)hҲֿ׃(hu)hҲԺϲֲĶ(g)(hu)hҶ(hu)໥ɔ_

Ї(gu)(gu)ҕ(hu)hđ(yng)Ô(sh)ּto(w)(hu)hϵy(tng)

3Y(ji)Z(y)

ڕ(hu)hϵy(tng)(yng)È(chng)ϵȫɿǕ(hu)hϵy(tng)O(sh)Ӌ(j)Ҫԭt(dng)o(w)a(chn)Ʒ䑪(yng)Խ(li)Խlg(sh)ğo(w)(hu)hϵy(tng)ɱؕ(hu)ܵo(w)늸ɔ_ϣ(du)o(w)(hu)hϵy(tng)İȫɿԆ(wn)}ҕ


P(gun)  

؟(z)•ā(li)ԴInfo AV CHINA,ăH߂(g)^c(din)c푾W(wng)o(w)P(gun)ԭ(chung)Լֺ̓(ni)δ(jng)վC(sh)(du)Լȫ߲փ(ni)ֵ挍(sh)r(sh)ԱվκαCZՈ(qng)x߃HՈ(qng)кˌ(sh)P(gun)(ni)ݡ

P(gun):
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