Magulu afupipafupi olankhulana a oyendetsa ma telecom akuluakulu m'maiko osiyanasiyana padziko lonse lapansi-2

6. India
Pali othandizira asanu ndi awiri ku India (kupatulapo omwe akuchita nawo ntchito zenizeni), omwe ndi Bharat Sanchar Nigam Limited (BSNL), Bharti Airtel, Mahanagar Telephone Nigam Limited (MTNL), Reliance Communications (RCOM), Reliance Jio Infocomm (Jie), Tata Teleservices, ndi Vodafone Idea.
Pali magulu awiri a GSM pafupipafupi, omwe ndi DCS1800 ndi EGSM900.
Pali magulu awiri a WCDMA pafupipafupi, omwe ndi Gulu 1 ndi Gulu 8.
Pali 6 LTE ma frequency band, omwe ndi: Band 1, Band 3, Band 5, Band 8, Band 40, ndi Band 41.

7. Canada
Pali okwana 10 akuluakulu ogwira ntchito ku Canada (kupatulapo ogwiritsira ntchito), omwe ndi: Bell Mobility/BCE, Fido Solutions, Rogers Wireless, Telus, Vid é otron, Freedom Mobile, Bell MTS, Eastlink, Ice Wireless, SaskTel.
Pali magulu awiri a GSM pafupipafupi, omwe ndi GSM850 ndi PCS1900.
Pali magulu atatu a WCDMA pafupipafupi, omwe ndi Band 2, Band 4, ndi Band 5.
Pali magulu awiri a ma frequency a CDMA2000, omwe ndi BC0 ndi BC1.
Pali magulu 9 a LTE pafupipafupi, omwe ndi: Bandi 2, Band 4, Band 5, Band 7, Band 12, Band 17, Band 29, Band 42, ndi Band 66.

8. Brazil
Pali makampani akuluakulu asanu ndi limodzi ku Brazil (kupatulapo ogwiritsira ntchito), omwe ndi: Claro, Nextel, Oi, Telef ô nica Brasil, Algar Telecom, ndi TIM Brasil.
Pali magulu anayi amtundu wa GSM, omwe ndi: DCS1800, EGSM900, GSM850, ndi PCS1900.
Pali magulu anayi a WCDMA pafupipafupi, omwe ndi: Gulu 1, Gulu 2, Gulu 5, ndi Gulu 8.
Pali magulu anayi amtundu wa LTE, omwe ndi: Band 1, Band 3, Band 7, ndi Band 28.

9. Australia
Pali ma opareshoni atatu ku Australia (kupatula oyendetsa ntchito), omwe ndi Optus, Telstra, ndi Vodafone.
Pali magulu awiri a GSM pafupipafupi, omwe ndi DCS1800 ndi EGSM900.
Pali magulu atatu a WCDMA pafupipafupi, omwe ndi: Gulu 1, Gulu 5, ndi Gulu 8.
Pali magulu 7 a LTE pafupipafupi, omwe ndi: 1, Band 3, Band 5, Band 7, Band 8, Band 28, ndi 40.

 

10. South Korea
Pali atatu oyendetsa ntchito ku South Korea (kupatulapo omwe amagwira ntchito), omwe ndi SK Telecom, KT, ndi LG UPlus.
Pali gulu limodzi la WCDMA frequency band, lomwe ndi Band 1.
Pali magulu awiri a ma frequency a CDMA2000, omwe ndi BC0 ndi BC4.
Pali 5 LTE ma frequency band, omwe ndi: Band 1, Band 3, Band 5, Band 7, Band 8

11.Mapu ogawa ma band pafupipafupi a ogwira ntchito ku North America

BTF Testing Lab ndi malo oyesera ovomerezeka ndi China National Accreditation Service for Conformity Assessment (CNAS), nambala: L17568. Pambuyo pakukula kwazaka zambiri, BTF ili ndi labotale yofananira ndi ma electromagnetic, labotale yolumikizirana opanda zingwe, labotale ya SAR, labotale yachitetezo, labotale yodalirika, labotale yoyezetsa ma batire, kuyezetsa mankhwala ndi ma labotale ena. Imayenderana bwino ndi ma elekitirodi, ma frequency a wailesi, chitetezo chazinthu, kudalirika kwa chilengedwe, kusanthula kulephera kwa zinthu, ROHS/REACH ndi kuyesa kwina. BTF Testing Lab ili ndi malo oyezera akatswiri komanso athunthu, gulu lazoyeserera ndi akatswiri a certification, komanso kuthekera kothana ndi zovuta zosiyanasiyana zoyesa ndi ziphaso. Timatsatira mfundo zotsogola za "chilungamo, kusakondera, kulondola, ndi kukhwima" ndikutsata mosamalitsa zofunikira za ISO/IEC 17025 test and calibration laboratory management system for science management. Tadzipereka kupatsa makasitomala ntchito zabwino kwambiri. Ngati muli ndi mafunso, chonde omasuka kulankhula nafe nthawi iliyonse.