Kāna RF i ka hoʻolaha lekiō

 

I ke kamaʻilio lekiō, ʻo ka kānana RF kahi mea uila koʻikoʻi. Ma ka hoʻouna ʻana i nā hōʻailona lekiō, e loaʻa mau nā pūʻulu ʻaʻole pono mākou, e like me kekahi mau hōʻailona hoʻopunipuni pono ʻole; a i ʻole no kekahi mau kumu kūikawā, ʻaʻole pono mākou i kahi ʻano alapine i nā hōʻailona lekiō. I kēia manawa, pono mākou e kānana i nā alapine i makemake ʻole ʻia ma o nā kānana RF. No laila he aha ke ʻano o nā lako uila RF kānana a no ke aha ka mea nui? ʻO kēia māhele e pane i kēia nīnau.

 

Mālama ka kaʻana like!

 

He aha ka RF Filter

 

ʻO ka kānana RF he kānana uila, i hoʻohana ʻia e wehe a mālama i kekahi ʻano o nā alapine i nā hōʻailona lekiō. Hoʻohana maʻamau ia e hana i nā hōʻailona ma ka laulā o MHz a i KHz (MF a i EHF). Hoʻohana ʻia ia i nā lako hoʻolaha lekiō, nā lako kamaʻilio uila, nā lako kīwī, me nā mea hoʻouna a me nā mea hoʻokipa. Hoʻohana ʻia ia no ka hōʻoia ʻana ʻaʻole e hoʻouna ʻia kekahi ʻano o nā hōʻailona hoʻopunipuni pono ʻole i ka hoʻolaha ʻana, a e mālama ʻia ka ʻāpana o nā hōʻailona i koi ʻia.

 

I ka hoʻolaha lekiō, ʻo ka kānana RF he ʻāpana uila koʻikoʻi, no ka mea, i nā hōʻailona lekiō, ma kahi o ka ʻāpana a mākou e pono ai, aia kekahi mau mea ʻaʻole pono mākou. No laila, pono mākou i nā kānana RF e wehe i nā ʻāpana makemake ʻole. Inā pono ʻoe e hoʻohana i kahi kānana RF e hana ai ma ka laulā FM, e hōʻoia i ka pae alapine pass a i ʻole ka hoʻopaʻa ʻana i ke alapine i kaha ʻia ma ka kānana RF aia ma ka laulā o 88 - 108MHz.

 

Nā hana o nā kānana RF like ʻole

 

ʻO ka ʻōlelo maʻamau, ʻehā mau hana o nā kānana like ʻole i ka hoʻolaha lekiō

Hōʻuluʻo Pass Pass

ʻO ke kānana hele haʻahaʻa he kānana e hiki ai ke hele i ka alapine haʻahaʻa. E ʻoki ʻo ia i ke alapine i ʻoi aku ka kiʻekiʻe ma mua o kahi alapine. E kāʻili ʻia kēia ʻāpana o ke alapine a ʻaʻole e ʻae ʻia e hele.

Hoʻohana pinepine ʻia e kānana i ka walaʻau mai nā kaapuni waho i nā hōʻailona leo. ʻO nā hōʻailona kani i hana ʻia e ka kānana haʻahaʻa haʻahaʻa he maikaʻi maikaʻi.

Kānana Pass kiʻekiʻe

Ma kahi ʻē aʻe ka kānana hele kiʻekiʻe ʻae wale i nā alapine kiʻekiʻe e hele a ʻoki i ke alapine ma lalo o kekahi alapine. E hoʻopau ʻia ka hōʻailona leo ma kēia pūʻulu.

Hoʻohana maʻamau ia e wehe i ka bass mai nā mea ʻōlelo liʻiliʻi, no laila ua kūkulu pinepine ʻia kahi kānana kiʻekiʻe i loko o ka leo.

Kānana Pass Band

ʻO ke kānana bandpass He kānana ia e hiki ai ke hele i kekahi ʻano o nā hōʻailona alapine a hoʻopaʻa i nā hōʻailona ʻē aʻe i pili ʻole i kēia pūʻulu alapine. Hiki ke koho manuahi ʻia ka laulā alapine i hiki ke hoʻokuʻu ʻia a hiki ke lilo i ʻelua mau laina hoʻopau o nā alapine.

 

Hoʻohana pinepine ʻia i nā mea hoʻokipa uila a me nā transmitters. ʻO kāna hana nui i ka transmitter e hōʻemi i ka ʻāpana pono ʻole o nā hōʻailona hoʻopuka e hiki ai ke hoʻouna ʻia nā ʻikepili kūpono i ka wikiwiki e koi ʻia a me ke ʻano i ka bandwidth palena. I ka mea hoʻokipa, ʻo kāna hana nui e ʻae i ka nui o nā alapine i makemake ʻia a ʻoki i nā hōʻailona o nā alapine ʻē aʻe. Ma o ka hanaʻana i ka kānana bandpass, hiki ke hoʻonui i ka maikaʻi o ka hōʻailona a hiki ke hoʻemiʻia ka hoʻokūkū a me ka hoʻopiliʻana i waena o nā hōʻailona.

Kānana Uila Kaha

Ka hana a ke kānana bandstop kū'ē i ka kānana bandpass. He kānana ia e hoʻopaʻa wale i kekahi ʻano o nā alapine. Ua like kona hana me ka kānana bandpass, akā hana lākou ma nā ʻano like ʻole.

ʻO ka ʻōlelo maʻamau, ʻaʻohe ʻano kānana, he mea uila ia e hiki ai i ka hōʻailona ke hele ma ke kōkua o kahi passband. I ka pōkole, he mea uila ia e hōʻole i ka hele ʻana o nā hōʻailona o kekahi ʻano o nā alapine a ʻae i ka hele ʻana o nā hōʻailona o nā alapine ʻē aʻe.

 

No ke aha he mea nui ka RF Filter?

 

ʻIke mākou i ka hana o ka kānana RF e ʻae i kahi ʻano o nā alapine e hele a pale i nā alapine ʻē aʻe mai ka hele ʻana. Akā he aha ke ʻano o kēia?

 

  • E hoʻomaikaʻi i ka maikaʻi o nā hōʻailona - Ma ka hoʻolaha lekiō, ma hope o ka hoʻohana ʻana i kahi kānana RF kūpono, hiki ke pale maʻalahi i ka hōʻailona hōʻailona i hana ʻia e ka ʻōnaehana kamaʻilio, i hiki ke mālama ʻia ka maikaʻi o ke alapine e pono ai.

 

  • E pale i ka hoʻopilikia pinepine - No ka laʻana, pono ke kamaʻilio paʻa lima i kekahi nui o nā alapine e hana maʻamau. Inā ʻaʻohe kānana RF kūpono, ʻaʻole hiki i nā hōʻailona o nā alapine like ʻole ke hāʻawi i nā lawelawe i ka manawa like, me ka Global Navigation Satellite System, palekana lehulehu, Wi-Fi, etc.

 

I ka pōkole, hiki iā ia ke hoʻonui i ka hapa o nā hōʻailona o nā alapine i koi ʻia i ka lekiō ma ke kāohi ʻana i ka hōʻailona o kekahi mau alapine, i mea e hoʻomaikaʻi ai i ka hilinaʻi o nā hōʻailona lekiō.

 

Panina

 

Ke holo nei ʻoe i kāu lekiō ponoʻī? A pono ʻoe e kūʻai i nā kānana kūpono no kāu mea hoʻolaha lekiō? ʻO nā kānana RF mai FMUSER kāu mau koho maikaʻi loa! Ma ke ʻano he mea hoʻolako lako lekiō ʻoihana, hāʻawi mākou i nā ʻano piha o ke kūlana kiʻekiʻe nā ʻāpana passive a e hāʻawi iā ʻoe i nā hāʻina kūpono e pili ana i kou kūlana. Inā he pono kāu ma ka hoʻolaha lekiō, e ʻoluʻolu e ʻoluʻolu kāhea iā mā˚ou.

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