More Details:
How 3G radio works?
1.3G radios work with GSM850/1900/UTMS2100MHz or GSM900/1800/UTMS2100MHz(depond on your country). SIM Card required to offer Data talk worldwide, no Distance limit.
2.3G Radio cost data flow, Usually 2.88M/H for continnue talk and 0.06M/day standby mode for reference.
3.you can use Wifi connect network then no data flow cost.
1.3G radios work with GSM850/1900/UTMS2100MHz or GSM900/1800/UTMS2100MHz(depond on your country). SIM Card required to offer Data talk worldwide, no Distance limit.
2.3G Radio cost data flow, Usually 2.88M/H for continnue talk and 0.06M/day standby mode for reference.
3.you can use Wifi connect network then no data flow cost.
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WCDMA
Band 1:2100M Band 8:900M GSM GSM/GPRS : 850 /900 /1800 /1900MHz; Maximum RF power WCDMA 900 /2100MHz: Power Class 3 (+24dBm +2.5dBm /-1.5dBm); GSM/GPRS 850 /900 MHz :Power Class 4 (+33dBm +2.5 dBm /-0.5 dBm); GSM/GPRS 1800 /1900 MHz :Power Class 1 (+30dBm +2.5 dBm /-0.5 dBm); Receiving Sensitivity WCDMA 900:≤-108 dBm; WCDMA 2100:≤-109 dBm; GSM850 /900 /1800 /1900: ≤-106 dBm; GPS Positioning, Support A-GPS function, 1.57542GHz; Sensitivity Catch -144dBm,Track -159dBm; Technology Standard Data Speed Rate GSM CS:UL 9.6kpbs / DL 9.6kpbs GPRS:Multi-slot Class 10 EDGE: Multi-slot Class 12 WCDMA CS: UL 64kpbs / DL 64kpbs WCDMA PS: UL 384kpbs / DL 384kpbs WIFI IEEE 802.11 b/g/n ,2.4G; Maximum RF power ≤20dBm; Receiving Sensitivity IEEE 802.11 g: ≤-65dBm; |
Bluetooth
Support V4.0,V3.0,V2.1 ; Maximum RF power Class 1 ≤10dBm; Receiving Sensitivity GFSK: ≤-95dBm,DQPSK: ≤-94dBm , DPSK: ≤-88dBm; Basic Parameter Working Voltage 3.3V ~ 4.2V (Standard 3.8V) Working Current 250mA · UTMS 2100/900 220mA · GSM 900 Protocol HSDPA/WCDMA/EDGE/GPRS/GSM WIFI IEEE 802.11 b/g/n ,2.4G; Maximum RF power ≤20dBm; Receiving Sensitivity IEEE 802.11 g: ≤-65dBm; Bluetooth Support V4.0,V3.0,V2.1 ; Maximum RF power Class 1 ≤10dBm; Receiving Sensitivity GFSK: ≤-95dBm,DQPSK: ≤-94dBm , DPSK: ≤-88dBm; Basic Parameter Working Voltage 3.3V ~ 4.2V (Standard 3.8V) |