87-108 MHz 15kW Compact TX RX Combiner 4 Cavity Duplexer Solid-state FM Transmitter Combiner me 1 5/8" Input no FM Broadcast

Nā Mea Aʻo

• Ke keleawe, ke keleawe i uhi ʻia i ke kālā, a me ke alumini alumini kiʻekiʻe
• Nā kānana 3-cavity a i ʻole 4-cavity
• Haʻahaʻa hoʻokomo poho a me VSWR
• Kaʻawale kiʻekiʻe
• kana olelo hoopomaikai manao
• Maʻalahi no ka hoʻohui ʻana i nā ʻano pinepine
• ʻO ka hoʻolālā mana hiki keu
• ʻO ka piʻi liʻiliʻi o ka wela, ka hana maʻalahi
• ʻO ka hoʻolālā i hoʻohālikelike ʻia, multi-structure, a me ka hui pū ʻana

Nā Mea Hoʻohui Hoʻouna Hoʻi i loko o ka waihona

Starpoint (Branched) FM Combiners A hiki i 20kW:

• 7-16 DIN 1kW 4 Cavity Starpoint FM Transmitter Combiner
• 1kW 1 5/8" 2 Cav. N-Channel FM Starpoint Combiner
• ʻO 7-16 DIN 3kW ʻO ke ʻano lālā FM Combiner me 3 a i ʻole 4 Cavity
• 6kW Starpoint FM Combiner me 1 5/8" Input a me 3/4 Cavities
• 10kW 3 a i ʻole 4-Cavity Starpoint FM Transmitter me 1 5/8" hoʻokomo
• 2-Way 3 1/8" 20kW Starpoint FM Transmitter me 3 a i ʻole 4 Cavities

Kaulike (CIB) FM Combiners Up tp 120kW:

• 4kW CIB FM Combiner me 3/4 Cavities
• 4kW RF Channel Combiner me 3 a i ʻole 4 Cavities a me 7-16 DIN Input
• 15kW FM Combiner 3 a i ʻole 4 Cavity me 1 5/8" Input
• 40kW Compact RF Power Combiner me 3 1/8"
• 50kW 3/4 Cavities FM Transmitter Hui pū me 3 1/8" hoʻokomo
• 70kW/120 kW Kaulike CIB FM Combiner

Ke ʻimi nei i nā mea hoʻohui transmitter hou aʻe no kāu kahua hoʻolaha? E nānā i kēia mau mea!

ʻO nā mea hoʻohana like FM	VHF Huihui	UHF Huihui	L Hui Hui

• 15kW FM CIB Huihui x 1PCS 

E ʻoluʻolu e leka uila iā mākou no ka ʻike hou aku

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ʻElua mau kumu i hoʻohana ʻia ai ka RF Combiner

Ka liʻiliʻi o nā wahi nui

I ka neʻe ʻana o ka poʻe i nā kaona, ua ʻoi aku ka makemake o ke kūkulu ʻana i nā hale hoʻolaha nui e hiki ke hōʻea i kēia mau wahi paʻa kanaka mai nā wahi kikowaena. ʻOiaʻiʻo, ua ʻoi aku ka waiwai o kēia mau wahi nui, no laila he mea kūpono ke hoʻohana i kēlā me kēia wahi i kona hiki. Hiki ke hana maikaʻi ʻia kēia ma ke kaʻana ʻana i kahi pūnaewele transmitter a me kahi antenna maʻamau i waena o nā mea hoʻohana. No ka hoʻokō ʻana i kēia, hoʻohana ka ʻoihana hoʻolaha i nā hui pū ʻana o nā ʻano like ʻole a me nā nui. Eia kekahi laʻana, ma Kapalakiko (Mt. Sutro), Toronto (CN Tower), Montreal (Mt. Royal), New York City (Empire State Building), a me Chicago (John Hancock and Sears Buildings), nā hale kiaʻi kiʻekiʻe a i ʻole nā ​​hale kiaʻi ma luna o nā skyscrapers. ua hoʻohana ʻia no ka hoʻohui ʻana i nā keʻena hoʻolaha e like me ka hiki, e like me VHF-TV, UHF-TV, FM a me nā lawelawe kelepona kelepona ʻāina. Ua ʻike maikaʻi ʻia kēia ala, ʻaʻole wale ka hoʻohana ʻana i ka waiwai waiwai akā hoʻolaha pū i nā kumukūʻai hale kiaʻi ma luna o nā mea hoʻohana he nui.

ʻO ka hui pū ʻana o nā kikowaena FM ma kahi mākeke ua alakaʻi i ka hoʻonui ʻana o nā kikowaena hui. A me ka hoʻokō ʻana i nā ʻōnaehana DTV, ke hoʻoneʻe ʻia nei nā kikowaena FM mai nā hale kiaʻi e kū nei, e ʻoi aku ka nui o ka hoʻokaʻawale ʻana i nā wahi hale kiaʻi, e hoʻonui ai i ka noi no nā ʻōnaehana hui.

Na Koina o Hoʻokaʻawale FCC 

Ke hoʻolaha ʻia nā hōʻailona ʻoi aku ma mua o hoʻokahi antenna, pono e hui pū ʻia nā hōʻailona ma ke ʻano ʻaʻohe manawa e hiki ai i nā hōʻailona ke pane i nā mea hoʻouna o kēlā me kēia. ʻO ka hana ʻole ʻana pēlā e ʻae ʻia nā huahana intermodulation e hana ʻia i loko o nā pae amplifier hope loa o nā transmitters a hoʻolaha ʻia ma luna o ka antenna. Ua kapa ʻia kēia mau huahana intermodulation he "spurs." Hiki ke hana ʻia nā Spurs ma waena o nā kikowaena FM ʻaʻole wale ma ka band FM akā i loko o nā kaha haʻahaʻa VHF a ma luna o ka band FM e hoʻopilikia ai i ka hui mokulele. Eia hou, ua kuhikuhi ʻo FCC Rule 73.317(d) e hoʻoneʻe ʻia nā mea hoʻoulu i ʻoi aku ma mua o G00 kHz mai ka mea lawe e hoʻemi ʻia ma lalo o ke alapine o ka lawe ʻana e 80 dB a i ʻole 43 + 10log10 (ka mana ma watts) dB, ʻo ka mea ʻoi aku ka liʻiliʻi. I ka hoʻomaʻamaʻa, pono e hoʻokō maʻamau nā kikowaena e hana ana i nā mana hoʻopuka transmitter o 5 kW a ʻoi aku paha i ka koi 80 dB, ʻoiai nā kikowaena e holo ana i nā TPO haʻahaʻa (transmitter power outputs) e hāʻule ma lalo o ke ʻano helu helu.

Ua hōʻike ka ʻike i ka pale ʻana i nā spurs, pono e hoʻokaʻawale ʻia kēlā me kēia transmitter mai nā mea ʻē aʻe a pau o ka ʻōnaehana ma ka liʻiliʻi o 40 dB, me 4G a 50 dB e hōʻoiaʻiʻo ana i ka hoʻokō hoʻoponopono. Hoʻokō ʻia ka spur attenuation e ka hui pū ʻana o ka nalowale o ka transmitter turn-around a me kāna kānana. Aia nā poho huli i ke ala i hana ʻia ai nā spurs i ka transmitter. Ke holo maʻamau nei kēia mau poho ma ka laulā G-13 dB no nā mea hoʻouna ʻano tube, aʻo 15-25 dB ka mea maʻamau no nā ʻāpana mokuʻāina paʻa. Hoʻopili ʻia kahi hōʻailona off-frequency i ka 40 dB i ka wā e hele ai i nā kānana bandpass o ka module combiner i ka transmitter me ka spur e hana ai i waho o ka transmitter he G-25 dB hou ma lalo o ka pae i komo ai ka hōʻailona. Hoʻemi ʻia kēia spur i ka 40 dB i kona hoʻi ʻana i nā kānana bandpass. ʻO ka hopena, ʻo ia ka spur attenuation o ka liʻiliʻi o 80 dB, me 100 dB a ʻoi aku paha.

I kēia ao, ua lilo ka mea hui i mea nui o ke kaulahao hoʻolaha. He mea nui e hoʻomaopopo i ka ʻenehana a me ka paʻakikī. E like me nā pono a me nā hemahema o ka hui, pono ka mea hoʻolālā ʻōnaehana e koho i nā noi kikoʻī. Hoʻokomo pololei ʻia nā hui hoʻolohe pono ʻana i kāu hōʻailona i ka poʻe e noho mamao ana, a ʻo ka hoʻohana pono ʻole ʻana i nā keʻa hiki ke alakaʻi i ka noʻonoʻo ʻana, ka hopena o ke olakino maikaʻi ʻole o ka transmitter. 

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No ke aha e ho'ōki ai kaʻu hui hui RF i ka hana

Ma hope o nā makahiki o ka hoʻāʻo mau ʻana e ka hui ʻenehana FMUSER, ʻike mākou ʻo ka hewa maʻamau o ka multiplexer ʻo ia ka pau ʻana o ke kūpaʻa absorption.

I kekahi mau ʻano ʻino (e like me ka hekili), ʻoi aku ka maʻalahi o ka ʻōnaehana hānai o ka mea hoʻohui i ka hopena o ka uila. I kēia manawa, ʻike ʻia ka hui pū ʻana o RF i ka hekili, hiki ke oki i ka hana, me ka pau ʻana o nā mea hānai lālā. Hiki i kekahi mau transmitters ke noʻonoʻo nui a me ka hāʻule ʻana o ka volta kiʻekiʻe, a hiki ke hoʻopau ʻia ke kūpaʻa absorption. ʻO ka hopena maikaʻi loa e hoʻololi i ka resistor absorption.

He mea pono ke hoʻomaopopo ʻia aia nā kumu like ʻole e wehewehe i ke kumu e pau ai ka hana ʻana o kāu hui hui RF, kahi e koi ai i nā ʻenehana RF e mālama ʻokoʻa a wehe i ka hewa. E noʻonoʻo i ka wā e hāʻule ai ka mea hānai a i ʻole ke piʻi ʻana o ka noʻonoʻo o ka mea hoʻouna. E ʻoluʻolu e nānā i nā manawa inā loaʻa ka piʻi ʻana o ka mahana o ka hui RF a inā he maʻamau ke kū ʻana o ka ukana absorption.

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ʻEhā mau kumu ʻē aʻe e wehewehe ai i ke kumu o ka pau ʻana o ka hana ʻana o kāu RF Combiner

I ka wā o ka mālama maʻamau, ua ʻike pū mākou ua pōʻino ke kūpaʻa absorption a ʻoi aku ka nui o ka waiwai kūʻē. Ma ka waena o ka hana, ʻaʻole mākou i ʻike ua hōʻike nui ka transmitter a i hāʻule paha i ka volta kiʻekiʻe, a he maʻamau nō hoʻi ka VSWR o ka mea hānai antenna. Ua hana kēia i kekahi mau manawa. Ma hope o ka nānā pono ʻana, manaʻo ʻia he ʻokoʻa paha nā kumu. Penei ka hopena.

1. Inā ʻano ʻino ka mea hānai antenna, pili ia i ka hana o ka hui hui RF. Eia kekahi laʻana, hiki ke liʻiliʻi ke kū'ēʻana o ka mea hānai nui; ʻO ka wā maikaʻi ʻole e like me ka ua a me ka hau e lawe mai i kahi kaapuni pōkole koke, kaapuni hāmama, a ʻoi aku ka maikaʻi o ka hawewe kū ʻana i ka antenna, ʻo kēia mau mea āpau e hoʻihoʻi i ka mana.
2. ʻOi aku ka ʻino o ka papa kuhikuhi o ka hui hui RF, haʻahaʻa ke kaʻawale o ka hui kuhikuhi 3dB, a ākea ka kānana bandpass. Wahi a ka loina maʻamau, ʻike mākou aia kekahi leakage ma ka hopena kaʻawale o ka mea hoʻohui kuhikuhi 3dB, a ʻaʻole hiki i ka kānana bandpass ke hōʻike piha i ka hōʻailona o waho. Ke nui loa ka mana i ka hopena kaʻawale a ʻoi aku ma mua o ka mana helu o ka ukana absorption, e piʻi aʻe ka mahana o ka ukana absorption a pau loa.
3. Inā ʻoi aku ka nui o ka modulation, ʻoi aku ka nui o ka bandwidth o ka hōʻailona RF, a piʻi ka mana i ka resistor absorption. ʻAʻole i kaupalena ʻia ka transmitter exciter, a ʻoi aku ka nui o ka ʻōnaehana modulation mua ma mua o 130%.
4. E hoʻoneʻe ʻia kekahi mana i ka haʻahaʻa haʻahaʻa ma muli o ka resonance frequency offset o ka band-pass filter, carrier frequency offset o ka transmitter, impedance mismatch ma waena o RF combiner a me antenna, etc.

Nā ʻōlelo aʻoaʻo mai FMUSER: ʻO ka pōʻino o ke kūpaʻa absorption ke kumu ʻia e hoʻokahi kumu a ʻoi aku paha. Inā ʻaʻole i hoʻololi ʻia ke kūpaʻa absorption i ka manawa, e ʻike ʻia ka mana i lawe ʻia e ka absorption resistor i ka transmitter, kahi e hōʻeha nui ai.

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He aha ka Multiplexing a pehea e hana ai

ʻO ke ala o nā hōʻailona RF Multiplexing - RF Multiplexer

'O ka multiplexer he mea ia e 'ae ai i ka 'ike kikoho'e mai kekahi mau kumu e ho'olele 'ia i ka laina ho'okahi no ka ho'ouna 'ana i kahi wahi. Hana ka demultiplexer i ka hana hoʻohuli o ka multiplexing. Lawe ʻo ia i ka ʻike kikohoʻe mai kahi laina hoʻokahi a hāʻawi iā ia i kahi helu o nā laina puka.

ʻO ka Multiplexing ke kaʻina o ka hoʻouna ʻana i ka ʻike mai nā kumu ʻoi aku ma mua o hoʻokahi i kahi hōʻailona hoʻokahi e ka media kaʻana like. Ma nā ʻōnaehana kamaʻilio ma ke kelepona a i ʻole ka analog, pono mākou i kahi ala kamaʻilio no ka hoʻouna ʻana. Hiki i kēia kaha he loulou uea a i ʻole he loulou uea paha. ʻAʻole kūpono ka hoʻokaʻawale ʻana i nā kahawai pākahi no kēlā me kēia mea hoʻohana.

No laila ua hui pū ʻia kahi pūʻulu o nā hōʻailona a hoʻouna ʻia ma luna o kahi ala maʻamau. No kēia, hoʻohana mākou i nā multiplexers. Hiki iā mākou ke hoʻohālikelike multiplex a i ʻole nā ​​hōʻailona kikohoʻe. Inā hoʻonui ʻia kahi hōʻailona analog, ua kapa ʻia kēia ʻano multiplexer he analog multiplexer. Inā hoʻonui ʻia ka hōʻailona kikohoʻe, kapa ʻia kēia ʻano multiplexer he digital multiplexer.

No ke aha he mea nui ka RF Multiplexer?

Hiki iā mākou ke hoʻololi i kahi helu nui o nā hōʻailona i kahi mea hoʻokahi. Hiki i ke kanal ke lilo i mea kino e like me ke kaula shaft, ka mea alakai metala, a i ole ka loulou uwea ole, a he plurality o na hoailona pono ke hana i hookahi.

No laila, hiki ke hoʻemi ʻia ke kumukūʻai hoʻoili. ʻOiai ka hoʻoili ʻia ʻana ma ke kahawai hoʻokahi, ʻaʻole pono lākou e hana i ka manawa like. ʻO ka maʻamau, ʻo ka multiplexing kahi ʻenehana e hui ʻia ai nā hōʻailona memo he nui i kahi hōʻailona hui i hiki ke hoʻouna ʻia kēia mau hōʻailona memo ma ke ala maʻamau.

No ka hoʻounaʻana i nā hōʻailona likeʻole ma ke kahawai hoʻokahi, pono e hoʻokaʻawaleʻia ka hōʻailona i mea e pale ai i ka pilikia ma waena o lākou, a laila hiki iā lākou ke hoʻokaʻawale maʻalahi iā lākou ma ka hopena loaʻa.

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