Kahi e kūʻai ai Kānana Ala Haʻahaʻa no ke kahua lekiō?

 

 

ʻO FMUSER kekahi o nā alakaʻi nā mea hoʻolako lako hale lekiō kokoke i ka hapalua keneturia. Mai ka makahiki 2008, ua hoʻokumu ʻo FMUSER i kahi ʻano hana e hoʻoulu ai i ka hui like ʻana ma waena o nā limahana o nā mea hoʻomohala ʻenekinia akamai loa a me kahi hui hana akamai. Ma o kēia ʻuhane a me ka hoʻolaʻa ʻana i ka laulima ʻoiaʻiʻo, ua hiki iā FMUSER ke hana i kekahi o nā hui uila hou loa, me ka hoʻohana ʻana i nā loina i hoʻāʻo ʻia i nehinei a hoʻokomo i ka ʻepekema holomua o kēia mau lā. ʻO kekahi o kā mākou hoʻokō haʻaheo, a me kahi koho kaulana o kā mākou mau mea kūʻai aku he nui RF kānana ala haʻahaʻa no ka lekiō.

 

"Inā ʻoe e ʻimi nei i nā lako lekiō ʻoihana no ke kūʻai ʻana, no ke aha e koho ʻole ai i kekahi o kēlā mau lako studio hoʻolaha maikaʻi loa mai FMUSER? Hoʻopili lākou i nā pae āpau o nā hui kānana radiofrequency, pono kekahi o lākou no ka lekiō, no ka laʻana, ka kānana ala haʻahaʻa FM, me nā HPF he nui no ke kūʻai aku, BPF no ke kūʻai aku, BSF no ke kūʻai aku, a me nā kānana lua haʻahaʻa no kuai e like me ka 88-108Mhz low pass filter no ke kuai. UHF a me VHF kānana e like me UHF bandpass kānana a me VHF bandpass kānana, a ʻoiaʻiʻo hoʻi, loaʻa iā lākou nā lako lekiō kiʻekiʻe kiʻekiʻe no ke kūʻai aku."

- - - - - James, lālā kūpaʻa o FMUSER

 

ʻO ka ʻāpana aʻe No ke aha e pono ai nā kānana mana haʻahaʻa RF? | E lele

 

He aha kā mākou e lawe ai iā ʻoe ma kēia ʻaoʻao

 

Ma hea e kūʻai ai i kāna kānana Pass Low? No ke aha e pono ai nā kānana RF Low Pass? Pehea e loaʻa ai nā Harmonic Annoying and Spurious Emissions? ʻOi loa ka kānana RF Low Pass no ke kūʻai aku  Pehea e koho ai i ka kānana FM Harmonics maikaʻi loa no ka Radio Station? Nā ʻike hoihoi e pili ana i nā kānana RF

 

 Hana maikaʻi ʻo FMUSER 20kW FM Low Pass Filter ma:

 

• Nā lekiō ʻoihana FM ma nā pae panalāʻau, kalana a me ke kaona
• ʻO nā lekiō ʻokoʻa a me ka nui FM me ka uhi ākea ākea
• ʻOihana lekiō FM me ka ʻoi aku o nā miliona o ka lehulehu
• ʻO nā mea hoʻolele lekiō e makemake ana i nā hopena turnkey radio piha me ke kumu kūʻai haʻahaʻa

 

Mahalo i ka hale hana papa honua, FMUSER, ma ke ʻano he alakaʻi alakaʻi o kūʻai lako hoʻolaha, ua lawelawe maikaʻi i nā ʻano mea kūʻai aku ma o ka hoʻolako ʻana nā hāʻina hoʻolaha piha no nā makahiki he 10 aʻe, hoʻokahi mea maopopo ʻo ia a kānana lowpass mana kiʻekiʻe me 2nd a me 3rd harmonic filtering e hoʻohana mau ʻia e hoʻohui a hoʻokaʻawale i nā hōʻailona lekiō uila mai nā mea hoʻolele lekiō FM he nui. 

 

"ʻAʻole hiki ke ʻōlelo ʻo FMUSER ka mea hoʻolako lako lekiō maikaʻi loa ma ka honua, akā no kekahi o nā mea hoʻokele lekiō, ʻae, ʻo FMUSER kahi mea kūʻai pono a me ka mea hana. mea hoʻolele lekiō."

 

 - - - - - Peter, lālā kūpaʻa o FMUSER

 

▲ Ma hea e kūʻai ai i ka kānana FM Low Pass maikaʻi loa ▲

▲ Hoʻi i ka maʻiʻo ▲

 

No ke aha e pono ai nā kānana mana haʻahaʻa RF no ke kahua lekiō?

 

ʻO ka ʻāpana mua Ma hea e kūʻai ai i ka kānana FM Low Pass maikaʻi loa | E lele

ʻO ka ʻāpana aʻe Pehea e loaʻa ai ka Harmonic Annoying and Spurious Emissions | E lele

 

He Mahele Pono o ka Lako Lekiō

 

Eia kekahi mau kumu e pono ai nā kānana haʻahaʻa haʻahaʻa RF no ka ʻoihana hoʻolaha lekiō.

 

• ʻAʻole hiki ke ʻalo ʻia nā Harmonics a me nā hoʻokuʻu hoʻopunipuni, a e hoʻopilikia lākou i nā lekiō ma nā alapine lekiō like ʻole a hōʻemi i ka maikaʻi o nā papahana lekiō a ʻo ia ke kumu waiwai o kahi kānana coaxial low pass i ka lekiō.

 

• Inā ʻaʻole ʻoe e hoʻohana i kahi kānana RF haʻahaʻa haʻahaʻa haʻahaʻa, e hoʻopaʻi ʻia paha ʻoe e ke keʻena hoʻokele lekiō kūloko (e like me FCC) no ka hoʻomohala ʻana i ka lekiō nui, no ka laʻana, nā helu o nā harmonics makemake ʻole a me nā hoʻoiho hoʻopunipuni i hana ʻia e kāu FM a Mea hoʻolele TV

 

• Hoʻohana nā mea hoʻolele lekiō i nā kānana haʻahaʻa haʻahaʻa i ka mana kiʻekiʻe no ka pale ʻana i nā hoʻokuʻu harmonic e hoʻopilikia i nā kamaʻilio ʻē aʻe.

 

• No ka hoʻopau ʻana i nā harmonics transmitter station FM: Hoʻopuka pinepine nā mea hoʻolele FM i nā harmonics - ka nui o ke alapine transmitter. Hoʻopilikia kekahi o lākou i ka VHF-tv a me ka UHF-tv hoʻokipa a me ka paging a me ka hoʻokipa lekiō kelepona. Ke hele nei kēia pūʻulu o nā kānana haʻahaʻa haʻahaʻa haʻahaʻa kiʻekiʻe i ka pūʻulu alapine FM holoʻokoʻa me ka haʻahaʻa haʻahaʻa a hāʻawi i ka nui o ka harmonic suppression.

 

 

E kūʻai i kāna kānana RF Harmonics mai FMUSER Broadcast

 

Ka waiwai nui o ka RF Harmonics kānana ʻo ia ke kōkua i nā lekiō e koho i nā hōʻailona e pono ai no ka hoʻohana ʻana. Maikaʻi no nā lekiō nui, pehea e hāʻawi ai i ka lehulehu i nā papahana lekiō kiʻekiʻe loa me ka ʻole e hoʻopaʻi ʻia e ka hoʻokele lekiō kūloko ka mea e pono ai e hoʻoikaika i ka hoʻokūkū o nā hoa lekiō a hoʻomaikaʻi i ka ʻike o nā lekiō.

 

Hāʻawi ʻo FMUSER nā kānana harmonic e like me 20kW FM kānana ala haʻahaʻa no nā pae mana transmitter a hiki i 20 kW. Hāʻawi kahi hoʻolālā kūʻokoʻa i ka 45 dB a i ʻole ka hōʻole ʻana mai ka lua a ka ʻumi harmonic a ma waho. Hāʻawi kēia i nā kānana me ka lōʻihi holoʻokoʻa 30% a 50% pōkole ma mua o nā kānana harmonic FM maʻamau. 

 

Loaʻa iā mākou nā kānana RF maikaʻi loa no ke kūʻai aku, kūʻai i nā kānana RF kēlā mana mai 500W a 1000W mai FMUSER! ʻO ke kikoʻī, ʻo lākou 20kW FM kānana ala haʻahaʻa no ke kūʻai aku (LPF) a 10kW VHF nā kānana ala haʻahaʻa no ke kūʻai aku (LPF), 10kW VHF bandstop kānana no ke kūʻai aku (BSF), 350W UHF kānana bandpass kikohoʻe no ke kūʻai aku, a me kekahi o kā mākou mea kūʻai lekiō kiʻekiʻe - FM bandpass kānana no ke kūʻai aku.

 

Loaʻa paha iā ʻoe nā mea a pau āu e pono ai ke hoʻomau ʻoe i ka ʻimi ʻana, loaʻa iā mākou Nā kānana bandpass FM ʻO kēlā mana mai 500W a 1kW, kikoʻī, ʻo lākou 500W, 1500W, 3000W, 5000W, 10000W. Nā kānana bandpass FM i hoʻolālā kūikawā ʻia no nā lekiō FM. Ma waho aʻe, loaʻa ka hana maʻamau no nā kānana harmonics, pau lākou me ke kumukūʻai kālā a me ka maikaʻi kupaianaha, e noi mai iā mākou no ke kākoʻo, nā pepeiao mākou a pau!

 

E like me kekahi o nā hui hoʻolaha nui loa o nā lekiō lekiō FM / TV, ʻo ka kānana lua RF e like me ka mea e pono ai e like me ka FM / UHF / VHF hui pū ʻana, ka mea hoʻolele hoʻolaha lekiō, ka hoʻouna ʻana i nā antenna, a me nā mea hana hoʻolaha like ʻole. ʻAʻole ia e hoʻonui i ka ʻōlelo ʻana ma ke ʻano he huahana kumu o nā huahana passive RF, ʻoi aku ka nui o nā kānana ma mua o nā hui passive ʻē aʻe i nā mea hou a me nā kahua kahua.

 

Eia nō naʻe, ʻo ka kānana RF, no ka laʻana, ka kānana RF pass haʻahaʻa, he mea pono ia ma ka ʻaoʻao hoʻouna o ke kahua hoʻolaha e hoʻopau i nā harmonics i hana ʻia e ka transmitter. ʻO kēia ke kumu o ka hoʻohana ʻana o nā ʻōnaehana RF ma ka honua holoʻokoʻa i nā alapine like ʻole, no laila he nui nā hōʻailona pōʻino e nalu ana i ka lewa, ʻo kekahi o lākou no ke kīwī, pūʻali koa, nā mea ʻē aʻe no ka noiʻi ʻana i ka wā a me nā kumu ʻē aʻe.

 

▲ No ke aha e pono ai nā kānana RF no ke kahua lekiō ▲

▲ Hoʻi i ka maʻiʻo ▲

 

Pehea e loaʻa ai nā Harmonic Annoying and Spurious Emissions?

 

ʻO ka ʻāpana mua No ke aha e pono ai nā kānana RF Low Pass | E lele

ʻO ka ʻāpana aʻe ʻO ke kānana RF Harmonics maikaʻi loa no ke kūʻai aku | E lele

 

ʻO ka mea e hoʻopilikia ai i nā mea ʻenekini RF āpau ʻaʻole hiki ke pale ʻia nā hoʻokuʻu harmonic a me ka hoʻopunipuni. No nā mea hoʻolele lekiō, he mea nui e hoʻomaopopo i ke ʻano o nā harmonics a me nā hoʻokuʻu hoʻopunipuni, a pehea e hana ʻia ai a pehea e hōʻemi ai i ko lākou hopena.

 

Ma ka manawa like, pono nō hoʻi ka mālama ʻana i ka maikaʻi o nā papahana lekiō, ua wehewehe mai ka hui ʻenehana RF ʻoihana FMUSER iā mākou i kekahi ʻike theoretical e pili ana i nā harmonics a me nā hoʻokuʻu hoʻopunipuni.

 

Inā makemake ʻoe e hoʻomaopopo hou i ke kumu e pono ai nā lekiō i nā kānana RF ʻoihana, pono paha ʻoe i kēia mau ʻike

 

Pehea i hana ʻia ai nā Harmonics?

 

Ua kapa ʻia nā alapine i loaʻa i ka nui pololei o ka alapine hoʻokomo. I nā huaʻōlelo ʻē aʻe, ʻo nā harmonics ka mea i makemake ʻole ʻia, ʻo ia ka nui o ka pinepine o ka hoʻouna ʻana i manaʻo ʻia. Loaʻa kēia hoʻoili makemake ʻole ma kahi pae haʻahaʻa haʻahaʻa ma mua o ka hoʻouna ʻana i makemake ʻia.

 

E like me kā mākou e ʻike ai, aia kahi mea pono i nā lekiō, ʻo ia hoʻi, nā mea hoʻolele lekiō. Inā paha e hoʻolālā kūikawā ʻia ka transmitter 1kW a i ʻole 10kW, a ua hoʻolako ʻia ka ʻāpana RF kumu o ka transmitter me kahi kānana band-pass, akā kokoke i kēlā me kēia RF transmitter e hana i kekahi mau harmonics, ʻAʻole hiki i ka mea uila uila ʻoihana ke pale aku i nā clutter a me nā hewa. hoʻokuʻu

 

Manaʻo ʻia ʻo Harmonics ke kumu kumu o ka hoʻopili RF. ʻO kekahi mau ʻano nalu, e like me nā hawewe huinahā, nā nalu ʻili, a me nā nalu triangular, he nui ka ikehu ma ke alapine harmonic.

 

Pehea e hana ʻia ai ka Spurious Emission?

 

ʻAʻole like me nā harmonics, ʻaʻole e puka mai ka hoʻokuʻu hoʻopunipuni ke pāpālua ʻia ke alapine komo; ʻAʻole lākou i hoʻolaha me ka manaʻo. ʻO ka hoʻokuʻu hewa ʻana he hoʻokuʻu ulia pōpilikia, ʻike mau ʻia ʻo splash. ʻO ia ka hopena o ka intermodulation, interference electromagnetic, hoʻololi pinepine, a i ʻole harmonic.

 

▲ Pehea e loaʻa ai ka Harmonic Annoying and Spurious Emissions ▲

▲ Hoʻi i ka maʻiʻo ▲

 

ʻO ke kānana mana haʻahaʻa RF maikaʻi loa no ke kūʻai aku 

 

ʻO ka ʻāpana mua Pehea ka hana ʻana o nā Harmonics a me nā hoʻoheheʻe hoʻopunipuni | E lele

ʻO ka ʻāpana aʻe Pehea e koho ai i ka kānana Harmonics FM maikaʻi loa | E lele

 

Pono ʻoe i kēia kānana RF Low Pass ma mua o ka manawa

 

Ua ʻike mākou a pau e hoʻohana ana nā mea hoʻolele lekiō nā kānana RF haʻahaʻa no ka pale ʻana i nā harmonics a me nā hoʻokuʻu hoʻopunipuni e hiki ke hoʻopilikia i nā kamaʻilio ʻē aʻe, ʻoiai ka hapa nui o nā mea hoʻouna FM e hoʻopuka i nā harmonics a hiki i nā manawa he ʻumi o ke alapine kumu. 

 

ʻO ka mea pōmaikaʻi, ʻo FMUSER 20kW FM kānana ala haʻahaʻa ʻO ia kekahi o nā hui kānana ʻōnaehana RF maikaʻi loa no ka pūʻulu hoʻolaha hoʻolaha FM. I mea e kōkua ai e hoʻemi i ka hopena i lawe ʻia mai e nā harmonics a me nā hoʻokuʻu hoʻopunipuni, ke hōʻike nei ʻo FMUSER i kekahi o kā mākou kānana harmonic haʻaheo-ka 20kW ʻO kāna kānana haʻahaʻa haʻahaʻa RF no ka lekiō FM.

 

Hoʻolālā ʻia ka kānana RF Low Pass no ka maikaʻi loa

 

Inā ʻaʻole ʻoe makemake e hāʻule kēlā mau harmonics i makemake ʻole ʻia i loko o ka pā alapine e pili ʻole iā ʻoe a hoʻopilikia nui (hiki iā ʻoe ke loaʻa i kahi pūʻulu o nā leka hoʻopiʻi pilikia a hoʻopaʻi ʻia e kekahi mau keʻena hoʻoponopono), no ka laʻana, nā alapine o nā ala TV a i ʻole. nā lekiō ʻē aʻe. Ke hoʻohana nei iā FMUSER 20kW RF kānana ala haʻahaʻa ʻo ia ke ala maikaʻi loa e kōkua iā ʻoe e hoʻokuʻu ʻia mai kēlā mau harmonic hoʻonāukiuki a me nā leka hoʻopiʻi pilikia. 

 

 

• Hiki ke kānana Harmonics

 

ʻO ka hiʻohiʻona nui o kēia kiʻekiʻe mana haʻahaʻa pass filter nona hiki i ka harmonic attenuation - e like me ka ʻikepili hoʻāʻo hilinaʻi o ka hui hoʻāʻo o FMUSER, ka lua o ka harmonic attenuation a me ke kiʻekiʻe o ka harmonic attenuation o kēia. 20kW haʻahaʻa haʻahaʻa RF kānana ua hōʻea i kēlā me kēia ≥ 35 dB a me ≥ 60 dB, ʻo ia kahi mana kānana harmonics ikaika loa no ka lekiō. 

 

• Hoʻokomo Haʻahaʻa Haʻahaʻa Loa

 

ka poho hookomo haahaa o ko FMUSER 20kW FM kānana ala haʻahaʻa kūpono ia no nā pae mana a hiki i 20000 watts, ʻo ia hoʻi me kēia kānana RF kupaianaha, hiki iā ʻoe ke hoʻohui me ka hoʻohana ʻana i nā ʻano mea hoʻolele lekiō me nā mana like ʻole i ka lekiō, a hiki i ka poʻe hoʻolohe ke loaʻa nā papahana radio me ka kiʻekiʻe kiʻekiʻe a haʻahaʻa haʻahaʻa haʻahaʻa! Mea hoʻohui: 3 1 / 8 "ka mana hoʻokomo kiʻekiʻe 20kw

 

• ʻIke Mea hoʻohana maikaʻi loa

 

ʻO nā kānana 20kW Low Pass no ke kūʻai aku, i kūkulu ʻia me kahi ʻōnaehana hoʻohui maʻalahi, ua kūkulu kūikawā ʻia no ka Radio Radio Station. E noonoo ana ka mea hoʻohana maikaʻi loa, hiki i ka ʻōnaehana kānana ke hoʻohui maʻalahi i nā mea hoʻouna FM.

 

Hāʻawi ʻo FMUSER i kahi laina piha o ka Nā kānana FM a me UHF/VHF no ka hoʻopau ʻana i ka harmonics ma nā hale hoʻolele lekiō. 

 

Ma ke ao holoʻokoʻa, makemake mākou e kōkua i ka mea hoʻokele lekiō mai ka honua holoʻokoʻa e hoʻokaʻawale i nā transmitters FM kokoke loa, ʻike mākou i kekahi o lākou e hōʻike nui nei i ka hoʻohui ʻana i nā alapine FM he nui ma ka antenna haku hoʻokahi, makemake kekahi e loaʻa nā noi maʻamau. no ko lakou mau transmitters he nui ma ko lakou mau kahua. 20kW FM kānana ala haʻahaʻa, no ka laʻana, ʻo ia kekahi o kā mākou kūʻai maikaʻi loa Nā kānana harmonics FM hoʻohana ʻia no ka hoʻohui ʻana i ka mana o ka lekiō FM a hiki i 20kW, ʻike paha ʻoe i kēia kanaka nui i kekahi mau lekiō FM nui.

 

KE HOOLOHE MAU NEI MAKOU I KO OUKOU PONO inā makemake ʻoe i kekahi o kā mākou kūʻai kiʻekiʻe Nā kānana RF harmonics. 

 

Manaʻo ʻoe makemake ʻoi aku ma mua o ka mea āu e ʻike ai

 

E like me kā mākou i ʻōlelo ai ma luna, ʻo mākou kekahi o nā mea maikaʻi loa mea hana lako lekiō ma ka honua, ma waho aʻe o ka 20kW haʻahaʻa haʻahaʻa RF kānana, hiki iā ʻoe ke hālāwai me nā mea ʻē aʻe nā kānana RF kūʻai nui ma ka maʻiʻo aʻe. ʻAe, maikaʻi ka maikaʻi a me ke kumukūʻai kālā e like me nā manawa a pau.

 

Palapala A. FM/VHF LPF Kānana Holo Haʻahaʻa no ke kūʻai aku

 

ʻO ka Next 10kW VHF Bandreject kānana VHF Kānana BSF Bandstop fa i ʻole Kūʻai | E lele

 

Maluna	kükohu	Max. Ka mana komo	ʻO VSWR	'O ka pinepine huahelu	Hoʻoikaika	2nd harmonic	3rd harmonic	nā mea hoʻopili	E kipa no ka mea hou aku
FM	A	20 kW	≤ 1.1	87 - 108 MHz		≥ 35 dB	≥ 60 dB	3 1 / 8 "	More
VHF	B	10 kW	≤ 1.1	167 - 223 MHz		≥ 35 dB	≥ 60 dB	3 1 / 8 "	More

 

Papa B. 10kW VHF BSF Bandstop Bandreject kānana no ke kūʻai aku

 

ʻO ka mua FM/VHF LPF Kānana Holo Haʻahaʻa no ke kūʻai aku | E lele

ʻO ka Next 350W UHF DTV BPF Bandpass kānana no ke kūʻai aku | E lele

 

Maluna	kükohu	Max. Ka mana komo	ʻO VSWR	fv	f0±4MHz	'O ka pinepine huahelu	Hoʻoikaika	fv-4.43±0.2MHz	nā mea hoʻopili	E kipa no ka mea hou aku
VHF	A	10 kW		≤ 1.1	≤ 1.1	167 - 223 MHz		≥ 20 dB	3 1 / 8 "	More

 

Palapala C. 350W UHF DTV BPF Bandpass kānana no ke kūʻai aku

 

ʻO ka mua 10kW VHF BSF Bandstop Bandreject kānana no ke kūʻai aku | E lele

ʻO ka Next FM BPF Bandpass kānana no ke kūʻai aku | E lele

 

Maluna

kükohu

Max. Ka mana komo

Nā Cavities

ʻO VSWR

hookomo Loss

f0

f0±3.8MHz

f0±4.2MHz

f0±6MHz

f0±12MHz

E kipa no ka mea hou aku

UHF

A

350W

6

≤ 1.15

474 MHz

≤ 0.50 dB

≤ 1.3 dB

≥ 8 dB

≥ 20 dB

≥ 40 dB

More

858 MHz

≤ 0.60 dB

≤ 1.65 dB

≥ 8 dB

≥ 20 dB

≥ 40 dB

More

 

Palapala D. FM BPF Bandpass kānana no ke kūʻai aku

 

ʻO ka mua 350W UHF DTV BPF Bandpass kānana no ke kūʻai aku | E lele

ʻO ka Next VHF BPF Bandpass kānana no ke kūʻai aku | E lele

 

Maluna

kükohu

Max. Ka mana komo

Nā Cavities

ʻO VSWR

'O ka pinepine huahelu

hookomo Loss

f0

f0±300kHz

f0±2MHz

f0±4MHz

nā mea hoʻopili

E kipa no ka mea hou aku

FM

A

500W

3

≤ 1.1

87 - 108 MHz

≤ 0.70 dB

≤ 0.75 dB

25 dB

40 dB

7-16 DIN

More

FM

A1

500W

4

≤ 1.1

87 - 108 MHz

≤ 1.10 dB

≤ 1.20 dB

40 dB

60 dB

7-16 DIN

More

FM

A

1500W 1.5kW

3

≤ 1.1

87 - 108 MHz

hookomo Loss

≤ 0.30 dB

≤ 0.35 dB

25 dB

40 dB

7-16 DIN

More

FM

A1

1500W 1.5kW

4

≤ 1.1

87 - 108 MHz

≤ 0.50 dB

≤ 0.60 dB

40 dB

60 dB

7-16 DIN

More

FM

A

3000W 3kW

3

≤ 1.1

87 - 108 MHz

hookomo Loss

≤ 0.25 dB

≤ 0.30 dB

25 dB

40 dB

1 5 / 8 "

More

FM

A1

3000W 3kW

4

≤ 1.1

87 - 108 MHz

≤ 0.40 dB

≤ 0.45 dB

≥ 40 dB

60 dB

1 5 / 8 "

More

FM

A

5000W 5kW

3

≤ 1.1

87 - 108 MHz

hookomo Loss

≤ 0.20 dB

≤ 0.25 dB

≥ 25 dB

40 dB

1 5 / 8 "

More

FM

A1

5000W 5kW

4

≤ 1.1

87 - 108 MHz

≤ 0.35 dB

≤ 0.40 dB

40 dB

60 dB

1 5 / 8 "

More

FM

A

10000W 10kW

3

≤ 1.1

87 - 108 MHz

hookomo Loss

≤ 0.15 dB

≤ 0.15 dB

25 dB

40 dB

3 1 / 8 "

More

FM

A1

10000W 10kW

4

≤ 1.1

87 - 108 MHz

≤ 0.25 dB

≤ 0.30 dB

≥ 40 dB

60 dB

3 1 / 8 "

More

 

Papa E. VHF Kānana BPF Bandpass no ke kūʻai aku

 

ʻO ka mua FM BPF Bandpass kānana no ke kūʻai aku | E lele

Hoʻi i FM/VHF LPF Kānana Holo Haʻahaʻa no ke kūʻai aku | E lele

 

Maluna

kükohu

Max. Ka mana komo

Nā Cavities

ʻO VSWR

'O ka pinepine huahelu

hookomo Loss

f0

f0±300kHz

f0±2MHz

f0±4MHz

nā mea hoʻopili

E kipa no ka mea hou aku

VHF

A

500W

4

≤ 1.1

167 - 223MHz

≤ 0.40 dB

≤ 0.50 dB

20 dB

35 dB

7-16 DIN

More

VHF

A1

500W

6

≤ 1.1

167 - 223MHz

≤ 0.80 dB

≤ 1.00 dB

50 dB

70 dB

7-16 DIN

More

VHF

A

1500W 1.5kW

4

≤ 1.1

167 - 223MHz

hookomo Loss

≤ 0.15 dB

≤ 0.20 dB

20 dB

35 dB

1 5 / 8 "

More

VHF

A1

1500W 1.5kW

6

≤ 1.1

167 - 223MHz

≤ 0.25 dB

≤ 0.30 dB

50 dB

70 dB

1 5 / 8 "

More

VHF

A

3000W 3kW

3

≤ 1.1

167 - 223MHz

hookomo Loss

≤ 0.10 dB

≤ 0.15 dB

10 dB

20 dB

1 5 / 8 "

More

VHF

A1

3000W 3kW

4

≤ 1.1

167 - 223MHz

≤ 0.20 dB

≤ 0.25 dB

20 dB

35 dB

1 5 / 8 "

More

VHF

A

5000W 5kW

3

≤ 1.1

167 - 223MHz

hookomo Loss

≤ 0.10 dB

≤ 0.10 dB

10 dB

20 dB

1 5 / 8 "

More

VHF

A1

5000W 5kW

4

≤ 1.1

167 - 223MHz

≤ 0.15 dB

≤ 0.20 dB

20 dB

35 dB

1 5 / 8 "

More

VHF

A

10000W 5kW

3

≤ 1.1

167 - 223MHz

hookomo Loss

≤ 0.10 dB

≤ 0.10 dB

10 dB

20 dB

3 1 / 8 "

More

VHF

A1

10000W 5kW

4

≤ 1.1

167 - 223MHz

≤ 0.15 dB

≤ 0.20 dB

20 dB

35 dB

3 1 / 8 "

More

 

Kūʻai iā RF Harmonics Filter no ka Radio Station? Eia ka Wahi Pono!

 

ʻO FMUSER kekahi o nā mea hana kānana RF maikaʻi loa e hana ʻO ke kānana harmonics no ke kūʻai aku ma kahi kokoke i 200+ mau ʻāina a me nā ʻāpana a puni ka honua, eia nā ʻāina i manaʻo ʻia e hiki ai iā ʻoe ke kuhikuhi.

 

Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, The Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana , Palakila, Brunei, Bulgaria, Burkina Faso, Burundi, Cabo Verde, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, Kina, Colombia, Comoros, Congo, Democratic Republic of the, Congo, Republic of the, Costa Rica , Côte d'Ivoire, Croatia, Cuba, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Dominican Republic, East Timor (Timor-Leste), Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Eswatini, Ethiopia, Fiji, Finland, Palani, Gabon, Gambia, Georgia, Kelemānia, Ghana, Helene, Grenada, Guatemala, Guinea, Guinea-Bissau, Guiana, Haiti, Honduras, Hungari, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel , Italia, Jamaica, Iapana, Ioredane, Kazakhstan, Kenya, Kiribati, Korea, ʻĀkau, Korea, Hema, Kosovo, Kuwait,Kyrgyzstan, Laos, LATVia, Lebanona, Lesotho, Liberia, Libia, Liechtenstein, Lithuania, Luxembourg, Madagaskar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mekiko, Micronesia, Federated States of, Moldova, Monaco , Mongolia, Montenegro, Morocco, Mozambique, Myanmar (Burma), Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, North Macedonia, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Polani, Pokukala, Qatar, Romania, Rusia, Rwanda, Saint Kitts a me Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, Spain, Sri Lanka, Sudan, Sudan, South, Suriname, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago , Tunisia, Tureke, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab E mirates, United Kingdom, United States, Uruguay, Uzbekistan, Vanuatu, Vatican City, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

 

Aia mākou ma ʻaneʻi no kou makemake

 

Ke noʻonoʻo mau nei ʻoe i ka RF harmonics kānana kumu kūʻai? Hoʻolālā mākou a hana i ka hoʻolālā kālā a hiki ke kūʻai aku nā kānana harmonics no nā lekiō, Mai LPF nā kānana ala haʻahaʻa i nā kānana bandstop a Nā kānana bandpass FM/UHF/VHF, etc.

 

E hoʻopiha i ka pepa "Contact us" ma ka hema a e haʻi mai iā mākou i kāu mau kikoʻī e pono ai, e pane koke aku kekahi o ko makou kuai ike a kokua i ke koho ana Kānana harmonic FM/TV i kūpono i kou pono, oi loa aku no na ninau e like me ka top-kuai haʻahaʻa pass kānana no ke kuai, bandpass kānana hana maʻamau, piha kānana turnkey solution, etc. Well, maʻamau nīnau e like me ke kumu kūʻai, haawi manawa, a specs no hoi noa e ninau. E haʻi i kāu mea e pono ai, KE HOOLOHE MAU NEI MAKOU.

 

▲ ʻO ke kānana RF Harmonics maikaʻi loa no ke kūʻai aku  ▲

▲ Hoʻi i ka maʻiʻo ▲

 

Pehea e koho ai i ka kānana FM Harmonics maikaʻi loa no ka Radio Station?

 

ʻO ka ʻāpana mua ʻO ke kānana RF Harmonics maikaʻi loa no ke kūʻai aku | E lele

ʻO ka ʻāpana aʻe Nā mea hoihoi a me ka Q&A e pili ana i nā kānana RF | E lele

 

Ke kānalua nei kekahi o kā mākou mea kūʻai aku, ʻaʻole maopopo iaʻu pehea e koho ai i ke ʻano kūpono RF harmonic kānana, a i ʻole makemake au i ʻelua ʻano o nā kānana harmonics akā he 50K$ wale nō kaʻu no ke kūʻai ʻana, etc.

 

Wahi a ka noiʻi kūʻai kūʻai pono o Nā kānana harmonic FMUSER, ua ʻike mākou ʻo ka top-sale Nā kānana harmonic RF loaʻa nā hiʻohiʻona like ʻole:

 

1. Hoʻopilikino like ʻole kānana a me OEM Welcome

 

ʻO ka hana maʻamau a me ka hoʻolālā ʻana o ka kānana e hōʻike i ka hoʻomohala ʻana o ka mea hana mea hoʻolaha hoʻolaha a me ka hoʻokō pono o nā mea hoʻolaha. Pono ka kānana RF harmonics maikaʻi loa i nā ʻano o ke kumukūʻai kālā, ke ola lawelawe lōʻihi. ʻO FMUSER 20kW FM nā kānana haʻahaʻa haʻahaʻa haʻahaʻa e maʻalahi i ka hoʻohana ʻana a me ke kumu kūʻai no nā mea hoʻokele lekiō.

 

2. Loaʻa i ka liʻiliʻi loa 1 PCS Design and Custom Service

 

Hāʻawi ʻia ka lawelawe hoʻolālā a me ka hana no ka liʻiliʻi loa o 1 pcs kānana. No ka mea, pono nā mea lekiō like ʻole e kū pono i nā pono maoli o nā lekiō like ʻole, inā paha hiki i ka mea hoʻolako kānana RF ke hana manuahi a ua lilo nā kānana hoʻolālā i hoʻokahi o nā kūlana e hoʻāʻo ai i ka hiki ke hoʻolako i nā mea hoʻolako kānana. No ke aha ke kū nei ʻo FMUSER mai nā mea hoʻolako kānana he nui no ka mea maʻamau kā lākou kānana RF, hana kiʻekiʻe, kumukūʻai kālā, a maʻalahi hoʻi e hoʻohana. No ka nui o nā kānana kiʻekiʻe āu e makemake ai e hoʻopilikino, hiki iā FMUSER ke lawelawe mau iā ʻoe

 

3. RF Harmonics Filter Buy Guideline mai FMUSER

 

Pehea e koho ai i ka nā kānana RF harmonics kiʻekiʻe ma waena o nā mea lako lekiō i ka makahiki 2021 ʻo ia ka pilikia koi i nā mea kūʻai hou a me nā mea kahiko FMUSER.

 

Ma hope o ke aʻo ʻana o kā mākou hui ʻenehana, ʻike mākou e hiki ke kōkua i kekahi mau ʻoihana ʻoihana e kōkua iā ʻoe e hana i kahi koho, komo pū mākou i nā pāʻani, hoʻolaʻa e hāʻawi i kā mākou kānana harmonics maikaʻi loa no ʻoe, no laila, inā pono ʻoe. Nā kānana harmonic RF no ke kūʻai aku a i ʻole makemake i kekahi ʻike e pili ana i nā mea hou loa kumukūʻai kānana harmonic mai FMUSER, e ʻoluʻolu e ʻike i kēlā KE HOOLOHE MAU NEI MAKOU!  

 

• ʻO ka Pim haʻahaʻa e ʻoi aku ka ikaika o nā hōʻailona

 

No ka laʻana, PIM (AKA: Passive Intermodulation), ʻike mākou ʻo ka PIM ka hopena o nā hōʻailona pono ʻole i hana ʻia e ka hui ʻana o ʻelua a ʻoi aʻe paha nā alapine i nā mīkini passive nonlinear. ʻO kēia mau hōʻailona hou e hoʻopilikia a hoʻololi i nā hōʻailona kumu i hoʻouna ʻia ma waena o nā ʻōnaehana uila ʻelua. Hiki iā ia ke hoʻoulu i ka hōʻailona hōʻailona ma kekahi ʻōnaehana uila. ʻO ka PIM haʻahaʻa ka loaʻa ʻana o kahi hōʻailona ikaika me ka bandwidth hou aku no nā mea hoʻohana hou aku, ʻo ia hoʻi ka ʻoluʻolu o ka mea kūʻai aku a me ka loaʻa kālā kiʻekiʻe no nā mea hana.

 

• Pono ʻoe i nā poho hoʻokomo haʻahaʻa a me nā poho hoʻihoʻi

 

He mea koʻikoʻi ka lilo o ka hoʻokomo ʻana a me ka hoʻihoʻi ʻana i ka hoʻolālā a me ka hoʻomohala ʻana i nā mea hana kiʻekiʻe e like me nā kānana RF, nā mea hoʻokaʻawale mana RF, a me nā mea hoʻonui RF. He hanana kūlohelohe ia i loaʻa i nā ʻano hoʻoili āpau (ka hoʻouna ʻikepili a i ʻole ka lawe uila). No ka mea he ʻoiaʻiʻo kēia no nā laina hoʻouna kino a i ʻole nā ​​​​ala conductive, ʻoi aku ka lōʻihi o ke ala, ʻoi aku ka kiʻekiʻe o ka poho. Eia kekahi, e hana ʻia kēia mau poho ma kēlā me kēia wahi pili ma ka laina, me nā hui a me nā mea hoʻohui. No ka hui kiʻekiʻe e like me nā kānana RF, ʻo kēlā mau kānana me ka liʻiliʻi o ka hoʻokomo ʻana a me nā wahi kūʻai maikaʻi ʻē aʻe hiki ke lilo i mea koho mua no nā mea lekiō.

 

• Ua ʻoi aku ma mua o ka mea āu e ʻike ai

 

ʻIke ʻia, aia nā ʻōlelo koʻikoʻi ma mua o ka Insertion loss, nā ʻāpana ʻē aʻe e like me ka waiwai hoʻopili a me ka hoʻokele mana kiʻekiʻe, etc. Inā makemake ʻoe i ʻike hou aʻe e pili ana i nā kānana RF harmonics, e ʻoluʻolu e hoʻokaʻaʻike i kā mākou hui ʻenehana, ʻo lākou ʻo 7/24 pūnaewele e kali nei i kāu nūhou maikaʻi. Eia ka manaʻo o ka hui ʻenehana FMSUER:

 

• Hoʻemi i ka nui kānana me ka hoʻokūkū kumukūʻai ʻO ka huahana kūpono no kahi ākea ākea o ke alapine microwave, e like me ka ʻōnaehana Telecommunication, IEEE 802.
• ʻO ke kūpaʻa wela maikaʻi loa
• Ka mana kiʻekiʻe a me ka waiwai attenuation maikaʻi loa
• Etc.

 

No ka hoopau ana i ka FM Station Transmitter Harmonics: Hoʻopuka pinepine nā mea hoʻolele FM i nā harmonics - ka nui o ke alapine transmitter. Hoʻopilikia kekahi o kēia mau mea i ka VHF-TV a me ka UHF-TV hoʻokipa a me ka ʻaoʻao a me ka hoʻokipa lekiō kelepona. ʻO kēia pūʻulu o nā kānana haʻahaʻa haʻahaʻa e hele i ka pūʻulu FM holoʻokoʻa me ka haʻahaʻa haʻahaʻa a hāʻawi i ka hoʻopau harmonic nui.

 

▲ Pehea e koho ai i ka kānana Harmonics FM maikaʻi loa ▲

▲ Hoʻi i ka maʻiʻo ▲

 

Nā mea hoihoi a me ka Q&A e pili ana i nā kānana RF

 

ʻO ka ʻāpana mua Pehea e koho ai i ka kānana Harmonics FM maikaʻi loa | E lele

Hoʻi i ka ʻāpana mua Ma hea e kūʻai ai i ka kānana FM Low Pass maikaʻi loa | E lele

 

Inā makemake ʻoe e ʻike hou aʻe e pili ana i ka hoʻolālā kaapuni a i ʻole ka māhele kūʻai aku o ka kānana RF, ʻōlelo ʻo FMUSER iā ʻoe e aʻo e pili ana i ka uila passive a i ʻole e nīnau pololei i kā mākou hui kūʻai aku, no ka mea, ʻaʻole lawa ka ʻike āu i heluhelu ai e wehewehe pono i ka kānana RF iā ʻoe. (PS: ʻAʻole hiki iā Wikipedia ke hana). No laila, ʻo nā mea a pau e hiki iā mākou ke hana iā ʻoe, ʻo ia ka wehewehe maʻalahi a me ka maopopo i ke ʻano a me nā ʻano o nā kānana RF, a pehea e hana ai nā kānana RF. Eia, papa inoa ʻo FMUSER i kekahi mau nīnau hoihoi e pili ana i nā kānana RF i hāpai ʻia e kā mākou mea kūʻai lekiō, a ʻo kā mākou pane. E ʻoluʻolu e hoʻomau i ka heluhelu Inā makemake ʻoe e ʻike hou aku e pili ana i nā kānana RF. 

 

Q1: Pehea e hana ai nā kānana RF i nā ala ʻē aʻe koe wale nō ma FM/TV Station?

 

ʻO nā kānana RF he mea nui i ka ʻenehana uila, hoʻohana ʻia nā kānana RF me nā mea hoʻokipa lekiō i hiki ke hoʻokipa ʻia nā ʻano alapine kūpono wale nō ke kānana ʻana i nā ʻāpana ʻē aʻe i makemake ʻole ʻia. Hoʻolālā ʻia nā kānana RF i kahi ala e hiki ai iā lākou ke hana maʻalahi ma nā pae alapine mai ka waena a i ke alapine kiʻekiʻe loa, ʻo ia hoʻi megahertz a me gigahertz. Ma muli o kāna ʻano hana, hoʻohana pinepine ʻia i nā mea hana e like me ka lekiō hoʻolaha, ke kelepona uila, a me ke kīwī, etc.

 

Hiki i nā kānana RF ke kānana i ka walaʻau a hōʻemi paha i ka hoʻopili ʻana o nā hōʻailona o waho e hiki ke hoʻopilikia i ka maikaʻi a i ʻole ka hana o kekahi ʻōnaehana kamaʻilio. ʻO ka nele o nā kānana RF kūpono i kahi e hiki ke hoʻopau i ka hoʻololi ʻana o nā alapine hōʻailona e hiki ai ke hōʻeha i ke kaʻina kamaʻilio.

 

Me nā kānana RF kūpono i kahi, hiki ke hoʻopaʻa maʻalahi ʻia nā pilikia o waho me ka hōʻailona hōʻailona i hana ʻia e ka ʻōnaehana kamaʻilio kokoke. Mālama kēia i ka maikaʻi o nā alapine hōʻailona makemake ʻoiai ke kānana ʻana i nā alapine hōʻailona makemake ʻole me ka maʻalahi.

 

Ma muli o kēia, he kuleana koʻikoʻi nā kānana RF i ka ʻōnaehana kamaʻilio uea, ʻo ia hoʻi ka satellite, radar, ka ʻōnaehana kelepona kelepona, a me nā mea hou aku. 

 

ʻO ka maʻamau, māmā nā kānana a hiki ke kōkua i ka hoʻonui ʻana i ka hana o nā alapine o ka hōʻailona. Inā ʻaʻole hiki i nā kānana RF ke hāʻawi i ka hana i manaʻo ʻia, a laila hiki iā ʻoe ke ʻimi i nā koho ʻē aʻe, ʻo ia ka hoʻohui ʻana o kahi amplifier i kāu hoʻolālā. Mai ka Trellisware amplifier a hiki i nā mea hoʻonui mana RF ʻē aʻe, hiki iā ʻoe ke hoʻololi i nā alapine hōʻailona haʻahaʻa i nā mea kiʻekiʻe; no laila e hoʻonui ai i ka hana holoʻokoʻa o nā hoʻolālā RF.

 

Eia kekahi, hana koʻikoʻi nā kānana RF i ke kaiapuni kelepona pū kekahi. I ka hiki ʻana mai i nā kelepona paʻa, koi lākou i kekahi mau pūʻulu e hana pono. Me ka nele i ka kānana RF kūpono, ʻaʻole e ʻae ʻia nā hui like ʻole e noho like i ka manawa like ʻo ia hoʻi e hōʻole ʻia kekahi mau pūʻulu, ʻo ia hoʻi, Global Navigation Satellite System (GNSS), palekana lehulehu, Wi-Fi, a me nā mea hou aku. Ma ʻaneʻi, he kuleana koʻikoʻi nā kānana RF ma ka ʻae ʻana i nā pūʻulu āpau e noho pū i ka manawa like.

 

Mahalo i ka hoʻomohala ʻana o R&D o FMUSER, uhi mākou i nā kānana like ʻole no ʻoe, e ʻoluʻolu e hoʻokaʻaʻike i kā mākou hui kūʻai inā ʻaʻole ʻoe maopopo ʻo wai ka mea maikaʻi loa no kāu kahua hoʻolaha, e kali ana kā mākou hui kūʻai a me ka ʻenehana ME NA PEPEIA A PAU.

 

Q2: Pehea ʻoe e hana ai i kahi kānana RF?

 

Ma keʻano laulā, hana ʻia nā kānana RF me nā resonator i hui pū ʻia a hoʻolālā ʻia me nā ʻāpana reactive passive e like me nā capacitors, inductors, a me (emi pinepine) RF transformers, i hui pū ʻia nā inductors. He laina laina maʻamau nā kānana, a inā makemake ʻia kekahi ʻano hoʻonui hiki ke hoʻohui ʻia me nā mea hoʻonui RF i hoʻokō ʻia me nā transistors RF (a i ʻole bipolar a i ʻole field-effect). Pono nā kānana i ka wā e kānana ai i nā hōʻailona makemake ʻole mai ke komo ʻana i ka spectrum radio. Hoʻohana ʻia lākou me nā mea uila like ʻole. Eia nō naʻe, hiki mai kāna hoʻohana nui ʻana i loko o ka domain frequency radio.

 

No ka kānana ala haʻahaʻa, ʻo kāna kaapuni e ʻae i nā ʻāpana alapine haʻahaʻa wale nō a hoʻopaʻa i nā ʻāpana alapine ʻē aʻe a pau i kapa ʻia he kānana ala haʻahaʻa. ʻO ka inoa LPF ponoʻī e hōʻike i ke alapine haʻahaʻa.

 

Ma muli o ka noi a me ka nui o nā lako uila, nui nā ʻano kānana, ʻo ia hoʻi nā kānana cavity, nā kānana planar, nā kānana electroacoustic, nā kānana dielectric, nā kānana coaxial (ʻaʻole pili i ke kaula coaxial), a me nā mea hou aku.

 

He mea hana ʻoihana ʻo FMUSER o Nā kānana RF harmonics. Loaʻa iā mākou ka ʻoihana hoʻolaha ʻike ʻike a me ka hui ʻenehana. Inā he nīnau kāu e pili ana i nā kānana RF i ka wā e heluhelu ai i kēia kaʻana, e ʻoluʻolu e nīnau i kā mākou hui loea no ke kākoʻo.

 

Q3: Ehia mau ʻano o ka kānana RF i laila a he aha lākou?

 

ʻO nā kānana Radio Frequency kahi ʻano kaapuni kūikawā e hiki ai i nā hōʻailona kūpono ke hele i ka wā e kāpae ai lākou i nā hōʻailona makemake ʻole. I ka hiki ʻana i ka topology kānana, ʻehā mau ʻano kānana RF kumu, ʻo ia hoʻi; kiʻekiʻe-pass; band-pass; a me ka band-reject (a i ʻole nā ​​kānana notch). ʻO nā kānana RF maʻamau he ʻano alapiʻi, a ʻo ka "kūlana" o nā ʻāpana (inductors a me capacitors) ka mea e wehewehe ai i ko lākou ʻano; ʻO nā waiwai o nā ʻāpana e wehewehe i ka laulā o ka alapine (es) hōʻailona a lākou e ālai ai a ʻaʻole paha.

 

• Kānana Ala Haʻahaʻa - kānana Lowpass - LPF

 

ʻO ka kānana haʻahaʻa haʻahaʻa ka mea e ʻae wale i nā alapine haʻahaʻa e hele i ka manawa like, e hoʻemi ana i kēlā me kēia alapine hōʻailona ʻē aʻe. Hoʻoholo ʻia ka nui o ka emi ʻana o ke alapine o ka hōʻailona i ka wā e hele ai i ka bandpass e nā mea he nui e like me ka topology kānana, ka hoʻonohonoho ʻana, a me ka maikaʻi o nā ʻāpana, a me nā mea ʻē aʻe. passband i mea e loaʻa ai kona hōʻole hope loa.

 

 

 

Hiki mai nā kānana ha'aha'a ma nā 'ano like 'ole. ʻO ka noi nui o kēia kānana ka hoʻopau ʻana i nā harmonics o ka RF amplifier. He mea koʻikoʻi kēia hiʻohiʻona no ka mea kōkua ia i ka pale ʻana i nā mea i makemake ʻole ʻia i ka wā e pili ana i nā pūna hoʻouna like ʻole. ʻO ka mea nui, hoʻohana ʻia nā kānana haʻahaʻa haʻahaʻa i nā noi leo a kānana i nā leo mai nā kaapuni waho. Ma hope o ka kānana ʻana i nā hōʻailona alapine kiʻekiʻe, loaʻa i nā alapine hōʻailona hopena i kahi maikaʻi a maopopo.

 

• Kānana Holo Kiʻekiʻe - Kānā Kiʻekiʻe - HPF

 

E kū'ē i ka kānana ala haʻahaʻa, hiki i ka kānana ala kiʻekiʻe (HPF) ke ʻae wale i ka hōʻailona alapine kiʻekiʻe e hele i loko. ʻO ka ʻoiaʻiʻo, ua hoʻokō ʻia nā kānana kiʻekiʻe i nā kānana ala haʻahaʻa no ka mea hiki ke hoʻohana ʻia ia mau mea ʻelua i hui pū ʻia e hana i kahi kānana bandpass. ʻO ka hoʻolālā o ka kānana hele kiʻekiʻe he pololei a hoʻemi i nā alapine i lalo o kahi paepae.

 

 

 

ʻO ka maʻamau, hoʻohana ʻia nā kānana kiʻekiʻe i nā ʻōnaehana leo kahi e kānana ʻia ai nā alapine haʻahaʻa. Eia kekahi, hoʻohana ʻia ia e wehe i ka bass ma nā ʻōlelo liʻiliʻi, a i nā manawa he nui; ʻO kēia mau kānana i kūkulu ponoʻia i loko o nā mea'ōlelo. Eia nō naʻe, inā pili ia i kekahi papahana DIY, hiki ke maʻalahi nā kānana kiʻekiʻe i ka ʻōnaehana.

 

• Kānana Band Pass - kānana Bandpass - BPF

 

ʻO kahi kānana bandpass (BPF) kahi kaapuni e hiki ai i nā hōʻailona mai ʻelua mau alapine like ʻole ke hele a hoʻemi i nā hōʻailona ʻaʻole i komo i loko o kāna pae ʻae. ʻO ka hapa nui o nā kānana bandpass e hilinaʻi ʻia i kekahi kumu mana waho a hoʻohana i nā mea hana, ʻo ia hoʻi nā kaapuni i hoʻohui ʻia a me nā transistors. Kapa ʻia kēlā ʻano kānana he kānana bandpass hana. Ma ka ʻaoʻao ʻē aʻe, ʻaʻole hoʻohana kekahi mau kānana band pass i kahi kumu mana waho a hilinaʻi nui i nā ʻāpana passive, ʻo ia hoʻi nā inductors a me nā capacitors. ʻIke ʻia kēia mau kānana he mau kānana passive bandpass.

 

 

Hoʻohana pinepine ʻia nā kānana band pass i nā mea hoʻokipa kelepona a me nā mea hoʻouna. ʻO kāna hana nui i ka transmitter ka palena ʻana i ka bandwidth o ka hōʻailona hoʻopuka i ka liʻiliʻi loa i hiki ke lawe ʻia ka ʻikepili pono i ka wikiwiki a me ke ʻano. I ka hiki ʻana mai i ka mea hoʻokipa, ʻae ka kānana band pass i ka nui o nā alapine i makemake ʻia e decode a lohe ʻia, ʻoiai e ʻoki ana i nā hōʻailona ʻē aʻe e hele mai ana mai nā alapine makemake ʻole.

 

 

ʻO nā mea āpau, ke hoʻolālā maikaʻi ʻia kahi kānana bandpass, hiki iā ia ke hoʻonui maʻalahi i ka maikaʻi o nā hōʻailona, ​​ʻoiai i ka manawa like, hiki iā ia ke hōʻemi i ka hoʻokūkū a i ʻole ke keakea ʻana i waena o nā hōʻailona.

 

• Kānana Hōʻole Band - Kānā Hoʻōki Band - Kānā Hōʻole - BSF

 

I kekahi manawa i kapa ʻia ʻo ka band stop filter (BSF), ʻo ka band reject kahi kānana e hiki ai i ka hapa nui o nā alapine ke hele i ka loli ʻole. Eia naʻe, hoʻemi ia i nā alapine e hāʻule ma lalo o kahi kikoʻī kikoʻī. Hoʻohana like ia me ke ʻano o ka kānana bandpass.

 

 

ʻO ka mea maʻamau, ʻo kāna hana ka hele ʻana i nā alapine mai ka ʻole a i ka ʻoki mua o ke alapine. Ma waena, hoʻohele ia i nā alapine a pau ma luna o ka helu ʻoki ʻelua o ke alapine. Eia naʻe, hōʻole a poloka ia i nā alapine ʻē aʻe a pau ma waena o kēia mau kiko ʻelua.

 

 

ʻO nā mea a pau, he kānana kahi mea e hiki ai i nā hōʻailona ke hele ma ke kōkua o ka passband. ʻO kēlā ʻōlelo, ʻo ka stopband i loko o ka kānana kahi i hōʻole ʻia ai kekahi mau alapine e kekahi kānana. Inā he ala kiʻekiʻe, ala haʻahaʻa, a i ʻole bandpass, ʻo ka kānana maikaʻi ka mea i hōʻike ʻole i ka poho o ka passband. Eia nō naʻe, ʻo ka ʻoiaʻiʻo, ʻaʻohe mea e like me kahi kānana maikaʻi loa e like me ka bandpass e ʻike i kahi nalowale alapine a ʻaʻole hiki ke loaʻa i ka hōʻole palena ʻole i ka wā e hiki mai ai i ka stopband.

 

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