Level 1-2 Service Manual Specifications (C257/C261)
July 1, 2005 7
Specifications (C257/C261)
General Functions Specification
Dimensions 109.85*49.95*14.95mm
Weight 93g
External LCD 65K color TFT, Active area 28.032 x
35.04mm, Pixel Resolution:
128(RGB)x160
Sub-LCD N/A
Band "EGSM/DCS" or "GSM850/PCS"
Battery 820mAh Li Ion battery
Product type Candy Bar
Antenna Internal
Frequency Range (EGSM) Tx 880-915MHz,
Rx 925-960MHz
Frequency Range (DCS) Tx 1710-1785MHz,
Rx 1805-1880MHz
Frequency Range (GSM850) Tx 824-849MHz,
Rx 869-894MHz
Frequency Range (PCS) Tx 1850-1910MHz,
Rx 1930-1990MHz
Channel Spacing 200KHz
Channels EGSM 174
DCS 374 channels
Modulation GMSK at BT=0.3
Transmitter Phase Accuracy 5 degrees RMS, 20 degrees peak
Duplex spacing 45MHz GSM, 95MHz DCS
Frequency Stability +/- 0.1ppm of downlink frquency (RX)
Operating voltage 3.53V ~ 4.2V
Average Transmit Current Power Level 5: 280mA,
Power Level 19: 115mA at DTX off
Average Standby Current DRX2: 6.5mA, DRX9: 3mA
Temperature Range -20°C to 55°C
