USB-modems for CDMA misali

A duban farko shi iya ze cewa USB-modems 'yan kaxan ne mutane bukatar. Duk da haka, wannan shi ne m. Ga me ya sa. Lalle ne, mafi yawan abin da yake a yanzu a kasuwa na cibiyar sadarwa kayan aiki don sadarwa tare da wani kwamfuta ta amfani da Ethernet dubawa. A dalilin ne banal: wannan misali na bukatar wani na USB dangane da ISP, wanda aka halin high-gudun damar zuwa duniya Internet. Amma wani iri-iri na USB-modems ayan yi amfani da wani mara waya sadarwa hanya, wanda, alas, ba ya bambanta m yi. Duk da haka, da suka samu su masu amfani.

Internet a cikin iska

Wannan labarin ba don samun ma m, bari mu dubi USB-modems an tsara aiki a cibiyoyin sadarwa na CDMA-aiki. Duk na sama partially zartuwa ga GSM misali.

Yanzu mafi mashahuri ne daban-daban šaukuwa na'urorin - kwamfyutocin, netbooks, Allunan, da dai sauransu A wasu kalmomin, da duk wadanda suka za a iya kira mobile .. A sarari yake cewa "motsi" da "Internet a kan waya" - m Concepts. Don warware wannan matsala, mutane da yawa aiki sun fara bayar da damar sabis da Internet wayaba. Kawai isa ya gano abin da suke USB-modems, saya ka fi so model, sa'an nan hannu a kwangila tare da dacewa da sabis. Babu cabling ake bukata. A cibiyar sadarwa yana ko'ina gyarawa siginar tushe tashoshin.

Matsalar zabi

Hakika, zabi USB-modems ba a kan bayyanar (ko da yake wannan ne ma muhimmanci), da kuma shan la'akari da fasali.

Saboda haka, CDMA modems iya aiki a daya daga uku halaye: a low gudun 1x (har zuwa 153 kbps). matsakaici gudun 3G (har zuwa 3.1 Mbps) da kuma babban gudun (har zuwa 14.7 Mbps). Karfinsu aka kiyaye daga sama zuwa kasa, watau na'ura mai goyan bayan 14 Mbps, shi copes da kyau tare da sauran biyu nagartacce. kamata ka sani kafin sayen modem zaba ta hanyar sadarwarka aiki tare da wani misali.

Wani lokaci Stores bayar da saya da wani amfilifa na USB-modem. Wannan na'urar wajibi ne a taron da cewa idan ka shirya amfani da mara waya ta samun wani rauni siginar yankin. Da zarar an shigar da modem, kama taguwar ruwa da kuma fi mai da hankali su a cikin kusanci da ta ginanniyar eriyar ciki, sa'an nan inganta sadarwa. A yadda ya dace dogara a kan da dama sigogi. Domin tsit amfani more m saya a modem da eriyar waje haši.

Sau da yawa, masana'antun na kokarin jawo hankalin da hankali ga kayayyakin da miƙa wani bayani da ikon gama memory cards, abin da ya sa na modem cikin da kebul na flash drive. Wannan Bugu da kari kusan ba ya kara jimlar kudin, sosai nemi-bayan.

A lokacin da sayen wani modem, shi ne shawarar zuwa duba shi ga 10-15 minti. M model domin wannan lokaci da lokacin zama zafi sosai.

Kafa kebul-modem

Kamar yadda aka ambata a sama, da babban matsala da na'urori marasa waya - low gudun. Ko da'awar 14.7 Mbps unattainable - azurtawa ne ba a banza nuna "kafin" kafin lambobi. Sunny don inganta wannan adadi za a iya cimma ta kafa. Da farko, dole ne ka ƙayyade da matakin da siginar - yana yiwuwa a yi amfani da shirin Axesstell. Idan ta matakin ne kasa (mafi «- 100dB»), shi ne zama dole a haɗa eriyar waje ko ikon sigina. Kawai sai za ka iya ci gaba zuwa saita da software, in ba haka ba shi ba zai kawo wani gagarumin ci gaba. A mafi sauki hanyar rinjayen aiki na da na'urar mai yiwuwa ne ta hanyar installing da latest version na direba. Sauran siffofin bukatar takamaiman ilimi a fagen CDMA-modem, don haka suka suna dauke a cikin daki-daki, a cikin Tattaunawa.