Tus ntaus ntawv rau kev haum ntawm satellite tais diav los ntawm txhais tes. Leej thiab yooj yim haum ntawm lub kav hlau txais xov mus rau lub satellite

Niaj hnub no, muaj coob tus neeg xav satellite TV. Txawm li cas los, nws yuav tsum tau borne nyob rau hauv lub siab hais tias tus kav hlau txais xov yuav tsum tau tig. Yuav kom qhov no kawg, lub lag luam muaj ib tug tshwj xeeb ntaus ntawv uas yuav txiav txim seb lub caij nyoog qhov chaw ntawm lub satellites. Qhov no txoj kev yog nqa tawm siv lub receiver. Capacitors kuj siv los mus hloov lub Harbor teeb liab zaus.

Self-sib sau ua ke rau hauv lub ntaus ntawv ntawm no hom yog ib qhov nyuaj nyob rau hauv tsev. Txawm li cas los, Yog hais tias koj paub cov kev ntaus ntawv configuration, koj yuav xaiv tus feem ntau yooj yim qauv rau lub rooj sib txoos. Nws tseem ceeb heev kom nco ntsoov hais tias rau cov kev siv ntawm nws kev hloov kho yuav tsum tau mus soj ntsuam. Nta ntawm lub ntaus ntawv chaw nyob ntawm seb tus qauv hom.

Ray ntaus ntawv rau transistors

Ua no hom ntawm ntaus ntawv mus rau kho cov satellite tais los ntawm koj tus kheej yog heev yooj yim niaj hnub no. Txawm li cas los, Yog hais tias koj nrhiav tau tag nrho cov tsim nyog cov khoom xyaw, ces saib mus rau hauv cov teeb meem no li sai tau. Tus thawj chav tsev yog ntsia zoo receiver. Raws li ib tug txoj cai, nws yuav tsum xaiv cov asynchronous hom. Txawm li cas los, lub lag luam muaj, thiab lwm yam kev hloov kho. Cov tsis muaj txawv heev.

Qhov kom zoo dua ntawm asynchronous receivers yog lawv stability. Tsis tas li ntawd, lawv yuav tau ua hauj lwm thaum muaj kev kub frequencies. Tom qab mounting cov kev tivthaiv yuav tsum tau soldered ncaj qha mus rau lub resistors. Rau lub hom phiaj no, yuav tau siv ib tug blowtorch. Txawm li cas los, cov muaj mob yuav tsum huv si ua ntej los ntawm tej yam hlau nplaum. Condensers rau cov qauv no yog kom tsim nyog teb hom. Peev Xwm ntawm lawv loj heev, tab sis cov daim ntawv Tuition Waiver ntawm tej zaum disappointing. Lim rau cov ntaus ntawv yog feem ntau xaiv tus kho lus hom. Zaub qauv yuav tsum tau xaiv nyias. Ncaj qha nti hauv chav kawm ntawv KK20 siv rau receivers.

Tej yam yooj yim ntsuas haum rau radial transistors

Tuner satellite tais rau lawv tus kheej mus rau luv luv tsis. Thawj tus neeg siv yuav tsum pib dua lub teeb liab. Rau no ntaus ntawv qhov rhiab heev yuav tsum raug txo kom ntau li ntau tau. Tom qab hais tias, nws yog ib qho tseem ceeb mus saib lub chaw xaiv. Raws li ib qho piv txwv, cov kav hlau txais xov yuav suav hais tias "Hotbird". Lub transmitter yog mounted rau nws shortwave.

Teem Hotbird satellite kav hlau txais xov los siv nrog ib tug pib zaus ntawm 50 Hz. Tom ntej no, nws yog tsim nyog los ua rau kom maj. Nyob rau hauv cov ntaub ntawv no, lub satellite cov ntaub ntawv tsim nyog los paub nyob rau hauv ua ntej. Nyob rau hauv cov ntaub ntawv no, ntau npaum li cas nyob ntawm seb yam ntawm receiver. Tom qab raising rau lub chaw pib zaus rhiab heev tsim nyog rho. Yog li ntawd nws yuav tsum tuaj ua ntej tag nrho cov pib dua teeb liab.

Model nrog laser receiver

Ua lub laser receiver ntaus ntawv rau kev haum ntawm satellite antennas nrog koj txhais tes yog nyuaj heev nyob rau hauv tsev. Tus thawj qauv yog lawm xaiv lub cev. Nyob rau hauv cov ntaub ntawv no, qhia feem ntau siv nrog P2P modulator series. Ncaj qha Zener qauv yog tsuas haum rau broadband.

Txawm li cas los, ib txhia kws tseem xav xim analogs. Receiver yuav tsum tau ntsia nyob ze ntawm lub lim. Nyob rau hauv cov ntaub ntawv no, lub zener diode yog soldered nyob rau hauv lub xeem tig. Yuav kom ntsuam xyuas cov qauv, koj yuav tsum siv cov kev pab cuam "Spectrum". Ua rau pab kiag li lawm ntawm no hom yuav tsis tshua muaj siv. rhiab heev kev xaiv nyob rau hauv qhov nruab nrab yuav tsum tsis muaj ntau tshaj li 4 microns. Tsis tas li ntawd, ua ntej khij ntaus ntawv yog tsim nyog los ascertain lub sam xeeb ntawm lub receiver.

Ib qho yooj yim configuration qauv uas muaj laser receiver

Teem satellite tuner kav hlau txais xov ib leeg tshwm sim nyob rau ib zaus tsis tshaj 30 Hz. Nyob rau hauv cov ntaub ntawv no nws yog tsim nyog los ua ntej kom tsis txhob rhiab heev ntawm lub ntaus ntawv. Tom qab ntawd, rau lub chaw pib zaus yog xaiv satellite. Yog hais tias cov zaub system qhia tau hais tias txoj kev loj hlob ntawm ib tug interrupt teeb liab, nws yog tsim nyog los ua rau kom tus rhiab heev. Raws li ib tug tshwm sim, tus neeg siv yuav tsum tau ib tug tag nrho cov synchronization nrog cov satellite.

Siv Binary log tsheb

Ua ib tug binary tsheb npav ntaus ntawv rau kev haum ntawm satellite antennas nrog koj ob txhais tes tsis yog ib tug teeb meem loj. Lub receiver nyob rau hauv cov ntaub ntawv no tsim nyog xaiv tus kho qhov muag hom. Nws sawv hnub no yog kim heev, tab sis yog tau ua hauj lwm tawm ntau heev. Lub resistors yog tsuas haum rau cov qauv nehromaticheskogo hom. Txawm li cas los, ua ntej yuav txhim kho lawv yog soldered ncaj qha mus rau lub tsheb npav. Vim tau ntawm nws siv lub ntaus ntawv yog ho muaj zog. Txawm li cas los, nws yuav tsum tau muab sau tseg tias modulator nyob rau hauv cov ntaub ntawv no, koj tsuas siv tau P2P series. Nyob rau hauv cov ntaub ntawv no, cov ntxaij lim dej rau lub system xaiv kho hom. Yuav kom ntsuam xyuas cov qauv, koj yuav siv tau lub "Spectrum" (qhov kev pab cuam yuav tau kho cov satellite tais).

muaj tseeb mus txog qhovtwg pab kiag li lawm

Sau tseeb mus txog qhovtwg ntaus rau kev haum ntawm satellite antennas nrog koj ob txhais tes, koj muaj peev xwm siv lub yoj receiver. Nrhiav tau yooj yim heev nyob rau hauv-lub khw xov tooj cua. Rau nqi nws tsis yog kim heev. Receiver haum rau no hom capacitors nrog ib tug muaj peev xwm ntawm tsis tsawg tshaj li 5 PF. Tshwj xeeb xim tsim nyog ntaus cov ntxaij lim dej. Feem ntau cov feem ntau lawv yuav xaiv rau lub hauv paus ntawm lub hwj chim resistors. Raws li cov modulator kheev siv nti hom PP20. Nws yuav tsum tau muab sau tseg tias cov binary log tsheb rau tej kev hloov kho yog teem heev tsis tshua muaj.

tus mem tes converter pab kiag li lawm

Nqi ntawm no hom ntawm kev hloov ntawm satellite antennas seev (kev ua lag luam tus nqi) nyob rau hauv lub cheeb tsam ntawm 3 txhiab. Tshiav. Txawm li cas los, koj yuav tau sib sau ua ke rau koj tus kheej. lawv muaj lub siab cut-off zaus parameter. Nyob rau hauv cov ntaub ntawv no, lub nyob txheej txheem yog nqa tawm haum sai sai. Receivers qauv muaj feem ntau siv tus kho qhov muag hom. Tag nrho cov condensers rau lub system yuav tau mus yuav peb.

Txawm li cas los, lawv cov capacitance yuav tsum tsis txhob ntau tshaj 3 PF. Tag nrho cov no yog tsim nyog los xyuas kom meej tias system stability yog tsis nyom txawm nyob rau hauv siab moos zaus. Zener qauv yog tsim nyog siv cov angular hom. Txawm li cas los, lub yoj distortion nyob rau hauv cov ntaub ntawv no tej zaum yuav ua tau heev loj.

Fine-tuning nrog mem tes transmitter qauv

Qhov chaw no hom ntawm pib ntaus tshwm sim nyob rau ib zaus ntawm 35 Hz. Tus thawj hloov yog tsim nyog los muab cov ciaj ciam ntawm lub satellite. Tom qab hais tias, nws yog ib qho tseem ceeb mus saib qhov rhiab heev ntawm tus qauv. Cov qhov taw qhia nyob rau hauv cov ntaub ntawv no yuav tsum nyob pes tsawg. Cov kauj ruam tom ntej yog mus maj mam nce rau lub chaw pib zaus. Thaum no khub Pib ntsais koj teeb soj ntsuam rau cov zaub. Yuav kom kho cov satellite, nws thiaj li resonance zaus yuav tsum tau stabilized. Yuav kom ntsuam xyuas cov ntaus ntawv siv "ROPIT".

Kev siv cov mem tes transformers

Devices nrog impulse converters hnub no yog heev nrov. Lawv yog tsim rau qhov chaw kawm ib xim hom antennas. Receivers feem ntau rau pab kiag li lawm xaiv kho qhov muag hom. Nyob rau hauv cov ntaub ntawv no, lub rooj sib txoos qauv mus pib nrog lub installation ntawm lub coupling capacitor rau cov zaub. Nyob rau hauv cov ntaub ntawv no, xws li yuav tsum noj xwb teb hom.

Yuav kom tswj lub teeb liab kis tau tus mob kev siv tsuas chromatic resistors. Nyob rau hauv cov ntaub ntawv no, lub zener siv heev tsis tshua muaj. Tag nrho cov thyristor ntaus ntawv yuav coj ob tug. Ib tug ntawm lawv yuav tsum tau ntsia ncaj qha los ntawm lub inverter. Nyob rau hauv cov ntaub ntawv no, lub thib ob thyristor yog mounted nyob ze ntawm lub modulator.

Kev siv cov cyclic capacitors

Devices nrog nplhaib capacitors yog siv los qhib cov antennas rau ib ntev lub sij hawm. Receivers yog haum rau ib tug ntau yam. Yuav kom sib sau ua ke cov qauv los ntawm koj tus kheej, yuav tsum xub tuaj tos lub cev. Tom qab uas yog ntsia ncaj qha modulator yuav tau kho cov pib zaus ntawm lub twj paj nruag.

Cov kauj ruam tom ntej yog mus kho qhov capacitors rau ib tug nti siv ib tug blowtorch. Tom ntej no, muaj yuav muab tsuas yuav chromatic resistors. Cov converter nyob rau hauv cov ntaub ntawv no nws yog advisable siv ib tug mem tes hom. Lim cov kws txawj pom zoo kom siv cov magnetic. Qhov nruab nrab rhiab heev ntawm lub ntaus ntawv yuav tsum tau yuav tsum tau lub neej ntawd ntawm 3 microns. xws li yog zoo tagnrho rau cov luv luv-yoj tshuab.

Teem tau cov qauv uas muaj yeej capacitors

Yuav kom kho cov kev ntsuas, koj yuav tsum xub sim nws rau serviceability. Ua li no, nws yog ib qho tseem ceeb rau siv lub "Spectrum" (qhov kev pab cuam yuav tau kho cov satellite tais). Cov tshev mis system feem ntau ntawm ib zaus tsawg tshaj 55 Hz. Nyob rau hauv cov ntaub ntawv no, lub rhiab heev ntawm lub ntaus ntawv yuav tsum tau yuav tsum tau nyob rau ntawm cov theem ntawm 5 microns. Tsuas yog tom qab lub xeem, koj muaj peev xwm mus ncaj qha mus rau lub teeb ntawm lub kav hlau txais xov. Ua li no, ua ntej ntawm tag nrho cov xaiv tsis muaj lub satellite.

Raws li ib qho piv txwv, cov kav hlau txais xov yuav suav hais tias "Telecard". Nws yog hais txog luv luv qauv. Teem satellite kav hlau txais xov "Telecard" tshwm sim nyob rau ib zaus ntawm 30 Hz. Thaum teem lub tsis koj xav tau them sai sai mus rau lub pairing qhia. Yog hais tias nws lo lus zoo lus los ntawm nws cov thawj cov nuj nqis, cov rhiab heev yuav tsum raug txo kom tsawg. Ntxiv mus, tus Harbor zaus yog teem rau 40 Hz. Rau ntawm no theem ib lub teeb liab stabilization tshwm sim.

tsawg rhiab heev kev hloov kho

Yog hais tias koj cuag ib tug satellite TV kav hlau txais xov hloov tej zaum yuav tshwm sim los ntawm txoj kev uas tsis muaj-rhiab heev ua qauv. Niaj hnub no nws yog heev. Txawm li cas los, cov shortcomings nws muaj tseem ceeb heev. Ua ntej ntawm tag nrho cov, lawv yog txuam nrog ib tug neeg txom nyem stabilization qauv. Receivers tau siv tsuas yog ib tug optical hom.

Lub rhiab heev nyob rau nruab nrab tsawg tshaj li 2 microns. Tag nrho cov no yog vim lub fact tias cov ntxaij lim dej nyob rau hauv cov ntaub ntawv no tsuas yog tsim magnetic hom. Txawm li cas los, lub ntsiab kom zoo dua ntawm cov qauv no yog los sai sai teem lub tsawg zaus Zener. Yog li, lub teeb liab pairing tshwm sim heev sai heev. Rau beginners, cov pab kiag li lawm yog zoo tagnrho.