Amabhendi wefrikhwensi yokuxhumana yabaqhubi bezokuxhumana abakhulu emazweni ahlukahlukene emhlabeni jikelele-1

1. IShayina
Kukhona ama-opharetha amane amakhulu e-China,
I-China Mobile, i-China Unicom, i-China Telecom, ne-China Broadcast Network.
Kunamabhendi amabili emvamisa ye-GSM, okuyi-DCS1800 ne-GSM900.
Kunamabhendi amafrikhwensi amabili e-WCDMA, okuyi-Band 1 ne-Band 8.
Kunamabhendi amabili e-CDMA2000, okuyi-BC0 ne-BC6.
Kunamabhendi amabili e-TD-SCDMA, okuyi-Band 34 kanye ne-Band 39.
Kunamabhendi efrikhwensi angu-6 LTE,
Yilawa: Ibhendi 1, ibhendi 3, ibhendi 5, ibhendi 39, ibhendi 40, nebhendi 41.
Kunamabhendi amafrikhwensi amane e-NR,
Ziyi-N41, N77, N78, kanye ne-N79, phakathi kwazo i-N79 ayisetshenziswa kabanzi okwamanje.

2. Hong Kong, China
Kunama-opharetha amakhulu amane e-Hong Kong, e-China (ngaphandle kwama-opharetha abonakalayo),
I-China Mobile (Hong Kong), i-Hong Kong Telecom (PCCW), i-Hutchison Whampoa, ne-Smartone.
Kunamabhendi amabili emvamisa ye-GSM, okuyi-DCS1800 ne-EGSM900.
Kunamabhendi amafrikhwensi e-WCDMA amathathu, okuyilawa: Ibhendi 1, Ibhendi 5, nebhendi 8.
Kunebhendi eyodwa ye-CDMA2000, eyi-BC0.
Kunamabhendi amafrikhwensi e-LTE amane, okuyi-Band 3, i-Band 7, i-Band 8, ne-Band 40.

3. I-United States
Kunama-opharetha ayi-7 amakhulu e-United States,
Yilawa: AT&T, T-Mobile, Sprint, Verizon, US Cellular, C Spire Wireless, Shenandoah Telecommunications (Shentel).
Kunebhendi eyodwa ye-GSM frequency, okuyi-PCS1900.
Kunamabhendi amabili e-cdmaOne, okuyi-BC0 kanye ne-BC1.
Kunamabhendi amafrikhwensi e-WCDMA amathathu, okuyi-Band 2, i-Band 4, ne-Band 5.
Kunamabhendi amafrikhwensi amathathu e-CDMA2000, okuyi-BC0, BC1, kanye ne-BC10.
Kunamabhendi efrikhwensi ayi-14 LTE,
Yilawa: Ibhendi 2, Ibhendi 4, 5, 12, 13, 14, 17, 25, 26, 29, 30, 41
Ibhendi 66, Ibhendi 71.

4. UK
Kukhona ama-opharetha amane amakhulu e-UK,
Yilawa: Vodafone_ UK, BT (kuhlanganise ne-EE), Hutchison 3G UK (Three UK), O2.
Kunamabhendi amabili emvamisa ye-GSM, okuyi-DCS1800 ne-EGSM900.
Kunamabhendi amafrikhwensi amabili e-WCDMA, okuyi-Band 1 ne-Band 8.
Kunamabhendi efrikhwensi angu-5 LTE, okuyilawa: Ibhendi 1, Ibhendi 3, Ibhendi 7, Ibhendi 20, kanye nebhendi 38.

5. Japan
Kukhona ama-opharetha amathathu amakhulu e-Japan, okuyi-KDDI, i-NTT DoCoMo, ne-SoftBank.
Kunamabhendi ama-frequency e-WCDMA angu-6, okuyilawa: Ibhendi 1, ibhendi 6, ibhendi 8, ibhendi 9, ibhendi 11, nebhendi 19.
Kunamabhendi amabili e-CDMA2000, okuyi-BC0 ne-BC6.
Kunamabhendi efrikhwensi ayi-12 e-LTE, okuyilawa: Ibhendi 1, Ibhendi 3, Ibhendi 8, Ibhendi 9, Ibhendi 11, Ibhendi 18, Ibhendi 19, Ibhendi 21, Ibhendi 26, Ibhendi 28, Ibhendi 41, kanye nebhendi 42.

I-BTF Testing Lab iyisikhungo sokuhlola esigunyazwe yi-China National Accreditation Service for Conformity Assessment (CNAS), inombolo: L17568. Ngemva kweminyaka yokuthuthuka, i-BTF inelabhorethri ehambelana nozibuthe kagesi, ilabhorethri yokuxhumana engenantambo, ilabhorethri ye-SAR, ilabhorethri yokuphepha, ilabhorethri yokwethembeka, ilabhorethri yokuhlola ibhethri, ilabhorethri yokuhlola amakhemikhali nezinye izindawo zokucwaninga. Inokuhambisana okuphelele kwe-electromagnetic, imvamisa yomsakazo, ukuphepha komkhiqizo, ukuthembeka kwemvelo, ukuhlaziya ukwehluleka kwezinto ezibonakalayo, i-ROHS/REACH namanye amakhono okuhlola. Ilebhu yokuhlola ye-BTF ifakwe izinsiza zokuhlola ezichwepheshile neziphelele, ithimba elinolwazi lokuhlola nochwepheshe bokunikeza izitifiketi, kanye nekhono lokuxazulula izinkinga ezihlukahlukene zokuhlola nezitifiketi. Sithobela izimiso eziqondisayo "zokulunga, ukungakhethi, ukunemba, kanye nokuqina" futhi silandela ngokuqinile izimfuneko ze-ISO/IEC 17025 yokuhlola kanye nohlelo lokuphatha ilabhorethri yokulinganisa yokuphathwa kwesayensi. Sizibophezele ekunikezeni amakhasimende isevisi yekhwalithi ephezulu kakhulu. Uma unemibuzo, sicela ukhululeke ukuxhumana nathi nganoma yisiphi isikhathi.