Walaʻauʻana me nā loina o ka Radio

I ka 1887 godu Genrih Gerts i hōʻike ai i ka electromagnetic a ikehu hiki ke hoʻouna i loko o ka lewa me Radio hawewe, a hele ma ka lewa e pili ana i ka mämä holo o ka malamalama. Kēia Kaka kōkua hoʻomōhala Radio loina i mea i kēia lā. A, ua hoao epekema i Radio hawewe electromagnetic i loko o ke ano maoli, akā, me ko lakou papa hiʻona - o ke alapine (frequency) i i ka ikehu loli aʻe ma waena o ka pila a me kaʻume mākenēki kihapai. Alapine (frequency) i loko o Hertz (Hz) Ua pili i ka ke kōā λ, i mea no ka mamao a me ka Radio nalu hele i kekahi oscillation. Ke'ī mai,ʻo kēia haʻilula: λ = C / F (kahi C o ka mämä holo o ka malamalama).

Nā kumu i ka nānā 'ana ma luna o Radio EYI o ka' ike-e hali ana i Radio hawewe. Ka mea hiki ke hoʻouna i leo ole kikohoʻe ikepili. No keia hopena, i ka Radio ku pono loaʻa:

- Kekahi mea no ke ohi o ka 'ike i loko o ka uila neaiae (e laʻa me, he mea hoʻolele leo). Kēia neaiae ua kapaia he iniiaiie alapine (frequency) koa i loko o kaʻike mau nā leo laulā.

- Modulator komo 'ike i loko o ka bandwidth neaiaea ma ke koho Radio alapine (frequency).

- A lēkio leo mana pahu hoʻonui leo o ka hōʻailona a hoouna mai ia i kekahi kukuna.

- ka kukuna o ka uila lawelawe koʻokoʻo o ka kekahi lōʻihi, a e hoʻokuʻu akula electromagnetic a Radio eʻe.

- peahi pahu hoʻonui leo ma kaʻaoʻao pa alima.

- demodulator, a e e hiki ke loaa i ka palapala 'ike mai ka loaa Radio neaiaea.

- Eia hoi, he nakeke no ka paʻi i ka pū i hiki ike (e laʻa me, he horn).

Radio nā loina

ʻO kēia rula o ka Radio i hāpai i ka hoʻomaka o ka hope kenekulia. Oiai Radio papahana kuhikuhi no ka leo a me ka mele. Akā loa koke mai i ka manawa e hoʻohana i nā loina o ka Radio palapala no ka EYI o oi luna 'ikepili. No ka laʻana, e like me kikokikona. Ua alakai aku ai i ka hana mea hou i hana muaʻole o ka telegraph kuhi.

Common i ka leo, mele a telegraph mea i ka papa kuhikuhiE ike ua hoʻopā'āluaʻia i loko o ke kani lepa, wehewehe aku ma ka ikaika hawewe a me ka alapine (frequency) (Hz). Kānaka e lohe leo i loko o ka laulā mai 30 Hz a hiki i kahi o 12.000 Hz. Kēia huahelu ua kapaia ka leo pae.

Ka Radio alapine (frequency) pae ua maheleia i loko o kekahi alapine (frequency) i paa ai. Kēlā me kēia no ia mea i ho'ākāka 'ano me ka pili ana i ka ea puka a me ka palaho i loko o ka lewa. Ua kaʻawale i ho'ākāka 'ia i loko o ka papaʻaina ma lalo palapala noi i hana i loko o ka haawi mai huahelu.

I kēia lā ia mea paakiki e noonoo ai i na mea makemake i i na kanaka a me ka Radio kamaʻilio, i loaʻa i kona palapala noi i loko o na mea he nui kēia manaʻo. No ka laʻana, e hoʻohana i nā loina o ka Radio a me ka kīwī ma ka lawe lima kaul, keyboard, GPRS, Wi-fi, nā pūnaewele kamepiula latike, a no laila, ma luna o.