礦用本安型防爆手機(jī)KTW280智能全網(wǎng)通技術(shù)參數(shù)：防爆類型煤礦防爆：ExibIMb **防爆：ExibIICT4Gb 粉塵防爆：ExibD21T130℃網(wǎng)絡(luò)頻段WCDMA：B1/2/4/5/6/8/19(帶RXD)TDS：B34/39CDMA：BC0/BC1/BC10(帶RXD)TDD：B34/38/39/40/41FDD:B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28A/28B/665G:N1/3/5/8/20/28/38/41/77/78/79下行/上行速度GPRS:53.6KbpsWCDMA:Uplink5.76Mbps,Downlink14.4MbpsTD-SCDMA:Uplink2.6Mbps,Downlink3.1MbpsFDD:Uplink50Mbps,Downlink150Mbps   TDD:Uplink50Mbps,Downlink150Mbps處理器MTK_687...