Kev sib txuas lus ntau zaus ntawm cov tswv lag luam loj hauv ntau lub teb chaws thoob ntiaj teb-2

6. Is Nrias teb
Muaj xya tus tswv lag luam loj hauv Is Nrias teb (tsis suav cov neeg ua haujlwm virtual), uas yog Bharat Sanchar Nigam Limited (BSNL), Bharti Airtel, Mahanagar Xov tooj Nigam Limited (MTNL), Kev Sib Txuas Lus (RCOM), Reliance Jio Infocomm (Jie), Tata Teleservices, thiab Vodafone tswv yim.
Muaj ob lub GSM zaus bands, uas yog DCS1800 thiab EGSM900.
Muaj ob lub WCDMA zaus band, uas yog Band 1 thiab Band 8.
Muaj 6 LTE zaus bands, xws li: Band 1, Band 3, Band 5, Band 8, Band 40, thiab Band 41.

7. Canada
Muaj tag nrho ntawm 10 tus tswv lag luam loj hauv Canada (tsis suav cov neeg ua haujlwm virtual), uas yog: Tswb Mobility / BCE, Fido Solutions, Rogers Wireless, Telus, Vid é otron, Kev ywj pheej txawb, Tswb MTS, Eastlink, Ice Wireless, SaskTel.
Muaj ob lub GSM zaus bands, uas yog GSM850 thiab PCS1900.
Muaj peb WCDMA zaus bands, xws li Band 2, Band 4, thiab Band 5.
Muaj ob lub CDMA2000 zaus, uas yog BC0 thiab BC1.
Muaj 9 LTE ​​zaus bands, xws li: Band 2, Band 4, Band 5, Band 7, Band 12, Band 17, Band 29, Band 42, thiab Band 66.

8. Brazil
Muaj rau tus tswv lag luam loj hauv Brazil (tsis suav cov neeg ua haujlwm virtual), uas yog: Claro, Nextel, Oi, Telef ônica Brasil, Algar Telecom, thiab TIM Brasil.
Muaj plaub GSM zaus bands, uas yog: DCS1800, EGSM900, GSM850, thiab PCS1900.
Muaj plaub WCDMA zaus bands, xws li: Band 1, Band 2, Band 5, thiab Band 8.
Muaj plaub lub LTE zaus bands, xws li: Band 1, Band 3, Band 7, thiab Band 28.

9. Australia
Muaj peb tus tswv lag luam tseem ceeb hauv Australia (tsis suav cov tswv lag luam virtual), uas yog Optus, Telstra, thiab Vodafone.
Muaj ob lub GSM zaus bands, uas yog DCS1800 thiab EGSM900.
Muaj peb WCDMA zaus bands, xws li: Band 1, Band 5, thiab Band 8.
Muaj 7 LTE zaus bands, xws li: Band 1, Band 3, Band 5, Band 7, Band 8, Band 28, thiab Band 40.

 

10. Kaus Lim Qab Teb
Muaj peb tus neeg ua haujlwm tseem ceeb hauv Kaus Lim Qab Teb (tsis suav cov neeg ua haujlwm virtual), uas yog SK Telecom, KT, thiab LG UPlus.
Muaj ib qho WCDMA zaus band, uas yog Band 1.
Muaj ob lub CDMA2000 zaus, uas yog BC0 thiab BC4.
Muaj 5 LTE zaus bands, xws li: Band 1, Band 3, Band 5, Band 7, Band 8

11.Frequency band faib daim ntawv qhia ntawm cov neeg ua haujlwm loj hauv North America

BTF Testing Lab yog lub chaw kuaj xyuas tau lees paub los ntawm Tuam Tshoj National Accreditation Service for Conformity Assessment (CNAS), tus lej: L17568. Tom qab xyoo ntawm txoj kev loj hlob, BTF muaj electromagnetic compatibility laboratory, wireless kev sib txuas lus laboratory, SAR laboratory, kev soj ntsuam kev nyab xeeb, kev cia siab rau lub chaw soj nstuam, roj teeb kuaj kuaj, tshuaj ntsuam xyuas thiab lwm yam chaw soj nstuam. Nws muaj qhov zoo tshaj plaws electromagnetic compatibility, xov tooj cua zaus, cov khoom muaj kev ruaj ntseg, ib puag ncig kev ntseeg siab, cov ntaub ntawv tsis ua hauj lwm tsom xam, ROHS / REACH thiab lwm yam kev kuaj muaj peev xwm. BTF Testing Lab yog nruab nrog cov kws tshaj lij thiab ua tiav cov chaw sim, pab pawg paub txog kev sim thiab cov kws tshaj lij, thiab muaj peev xwm los daws ntau yam teeb meem kev sim thiab ntawv pov thawj. Peb ua raws li cov qauv qhia ntawm "kev ncaj ncees, kev ncaj ncees, kev ncaj ncees, thiab kev nruj" thiab ua raws li cov cai ntawm ISO/IEC 17025 kev ntsuam xyuas thiab ntsuas qhov ntsuas qhov ntsuas rau kev tswj xyuas kev tshawb fawb. Peb tau cog lus los muab cov neeg siv khoom nrog cov kev pabcuam zoo tshaj plaws. Yog tias koj muaj lus nug, thov koj xav tiv tauj peb txhua lub sijhawm.