FMUSER Wirless Kusambaza Video Na Sauti Ni Rahisi Zaidi!
es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Kiafrikana
sq.fmuser.org -> Kialbeni
ar.fmuser.org -> Kiarabu
hy.fmuser.org -> Kiarmenia
az.fmuser.org -> Kiazabajani
eu.fmuser.org -> Kibasque
be.fmuser.org -> Kibelarusi
bg.fmuser.org -> Kibulgaria
ca.fmuser.org -> Kikatalani
zh-CN.fmuser.org -> Kichina (Kilichorahisishwa)
zh-TW.fmuser.org -> Wachina (Jadi)
hr.fmuser.org -> Kikroeshia
cs.fmuser.org -> Kicheki
da.fmuser.org -> Kidenmaki
nl.fmuser.org -> Kiholanzi
et.fmuser.org -> Kiestonia
tl.fmuser.org -> Kifilipino
fi.fmuser.org -> Kifini
fr.fmuser.org -> Kifaransa
gl.fmuser.org -> Kigalisia
ka.fmuser.org -> Kijojiajia
de.fmuser.org -> Kijerumani
el.fmuser.org -> Kiyunani
ht.fmuser.org -> Kikrioli cha Haiti
iw.fmuser.org -> Kiebrania
hi.fmuser.org -> Kihindi
hu.fmuser.org -> Kihungari
is.fmuser.org -> Kiaislandi
id.fmuser.org -> Kiindonesia
ga.fmuser.org -> Kiayalandi
it.fmuser.org -> Italia
ja.fmuser.org -> Kijapani
ko.fmuser.org -> Kikorea
lv.fmuser.org -> Kilatvia
lt.fmuser.org -> Kilithuania
mk.fmuser.org -> Kimasedonia
ms.fmuser.org -> Kimalesia
mt.fmuser.org -> Kimalta
no.fmuser.org -> Kinorwe
fa.fmuser.org -> Kiajemi
pl.fmuser.org -> Kipolishi
pt.fmuser.org -> Kireno
ro.fmuser.org -> Kiromania
ru.fmuser.org -> Kirusi
sr.fmuser.org -> Mserbia
sk.fmuser.org -> Kislovakia
sl.fmuser.org -> Kislovenia
es.fmuser.org -> Kihispania
sw.fmuser.org -> Kiswahili
sv.fmuser.org -> Kiswidi
th.fmuser.org -> Thai
tr.fmuser.org -> Kituruki
uk.fmuser.org -> Kiukreni
ur.fmuser.org -> Kiurdu
vi.fmuser.org -> Kivietinamu
cy.fmuser.org -> Kiwelsh
yi.fmuser.org -> Yiddish
Katika mzunguko huu, hex 74HC14 Schmitt inverter trigger hutumika kama oscillator mraba wimbi na gari ndogo ishara transistor katika Configuration darasa C amplifier. frequency oscillator inaweza kuwa ama fasta na kioo au alifanya adjustable (VFO) na capacitor / resistor mchanganyiko. Capacitor 100pF ni kutumika katika sehemu ya kioo kwa ajili ya operesheni VFO. Modulering amplitude ukamilike na transistor pili kwamba udhibiti voltage DC na hatua ya pato. hatua moduleta ni upendeleo ili voltage nusu ugavi au Volts 6 ni kutumika kwa hatua ya pato na modulering hakuna. hatua ya pato ni tuned na kuendana na antenna na capacitor kiwango kutofautiana 30-365 PF. Takriban 20 milliamps ya itapitia katika kuongoza antenna (katika mikondo karibu juu ya bendi) wakati hatua ya pato ni optimalt tuned kwa frequency oscillator. 'mbegu ya ngano' ndogo taa hutumika kuashiria mazingira ya antenna ya sasa na optimum. Inductor 140 Uh lilifanywa kutumia 2 inchi urefu wa 7 / 8 inch (OD) PVC bomba jeraha na zamu 120 ya waya # 28 shaba. Utendaji bora ni kupatikana karibu na mwisho juu ya bendi ya matangazo (1.6 MHz) tangu urefu antenna ni sehemu tu ndogo sana ya wavelength. Pembejeo nguvu amplifier ni chini ya 100 milliwatts na antenna urefu ni mita 3 au chini ambayo na kukubaliana na FCC sheria. Pato nguvu ni mahali fulani katika mbalimbali microwatt 40 na ishara unaweza kusikika miguu takriban 80. Kuipelekea pato nguvu inaweza approximated kwa kufanya kazi nje antenna mionzi upinzani na kuzidisha kwa mraba antenna sasa. upinzani mionzi kwa antenna dipole chini ya 1 / 4 wavelength ni
R = 80 * [(pi) ^ 2] * [(Length / wavelength) ^ 2] * (sababu kulingana na fomu ya usambazaji sasa) sababu kulingana na usambazaji sasa zinageuka kuwa [(wastani wa sasa pamoja fimbo) / (kulisha sasa)] ^ 2 kwa fimbo fupi, ambayo ni 1 / 4 kwa ajili ya usambazaji linearly-tapered sasa kuanguka kwa sifuri katika ncha. Hata kama viboko ni capped na sahani, sababu hii haiwezi kuwa kubwa kuliko 1. Kugeuza maadili kwa mguu 9.8 dipole katika mzunguko wa 1.6 MHz sisi kupata R = 790 * 000354. *. 25 =. Ohms 07. Na upinzani itakuwa tu nusu ya kiasi kwa monopole au Ohms 0.035. Kuipelekea nguvu katika 20 milliamps kazi nje kuhusu mimi ^ 2 * R = microwatts 14.
bidhaa zetu nyingine:
Kifurushi cha Vifaa vya Kitaalam vya Kituo cha Redio cha FM
|
||
|
Ingiza barua pepe kupata mshangao
es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Kiafrikana
sq.fmuser.org -> Kialbeni
ar.fmuser.org -> Kiarabu
hy.fmuser.org -> Kiarmenia
az.fmuser.org -> Kiazabajani
eu.fmuser.org -> Kibasque
be.fmuser.org -> Kibelarusi
bg.fmuser.org -> Kibulgaria
ca.fmuser.org -> Kikatalani
zh-CN.fmuser.org -> Kichina (Kilichorahisishwa)
zh-TW.fmuser.org -> Wachina (Jadi)
hr.fmuser.org -> Kikroeshia
cs.fmuser.org -> Kicheki
da.fmuser.org -> Kidenmaki
nl.fmuser.org -> Kiholanzi
et.fmuser.org -> Kiestonia
tl.fmuser.org -> Kifilipino
fi.fmuser.org -> Kifini
fr.fmuser.org -> Kifaransa
gl.fmuser.org -> Kigalisia
ka.fmuser.org -> Kijojiajia
de.fmuser.org -> Kijerumani
el.fmuser.org -> Kiyunani
ht.fmuser.org -> Kikrioli cha Haiti
iw.fmuser.org -> Kiebrania
hi.fmuser.org -> Kihindi
hu.fmuser.org -> Kihungari
is.fmuser.org -> Kiaislandi
id.fmuser.org -> Kiindonesia
ga.fmuser.org -> Kiayalandi
it.fmuser.org -> Italia
ja.fmuser.org -> Kijapani
ko.fmuser.org -> Kikorea
lv.fmuser.org -> Kilatvia
lt.fmuser.org -> Kilithuania
mk.fmuser.org -> Kimasedonia
ms.fmuser.org -> Kimalesia
mt.fmuser.org -> Kimalta
no.fmuser.org -> Kinorwe
fa.fmuser.org -> Kiajemi
pl.fmuser.org -> Kipolishi
pt.fmuser.org -> Kireno
ro.fmuser.org -> Kiromania
ru.fmuser.org -> Kirusi
sr.fmuser.org -> Mserbia
sk.fmuser.org -> Kislovakia
sl.fmuser.org -> Kislovenia
es.fmuser.org -> Kihispania
sw.fmuser.org -> Kiswahili
sv.fmuser.org -> Kiswidi
th.fmuser.org -> Thai
tr.fmuser.org -> Kituruki
uk.fmuser.org -> Kiukreni
ur.fmuser.org -> Kiurdu
vi.fmuser.org -> Kivietinamu
cy.fmuser.org -> Kiwelsh
yi.fmuser.org -> Yiddish
FMUSER Wirless Kusambaza Video Na Sauti Ni Rahisi Zaidi!
Wasiliana nasi
Anwani:
Nambari 305 Chumba cha HuiLan Jengo Na. 273 Huanpu Road Guangzhou Uchina 510620
Jamii
Jarida