Motorola T2282 Manuel de service télécharger pdf (Page 9)

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T2282

2.1 Specifications of T2282

General

Function

Specification

Frequency Range GSM 1850.2-1909.8 MHz Tx

1930.2-1989.8 MHz TX

Channel Spacing 200 kHz

Channels 274 PCS, carriers with 8 channels per carrier

Modulation GMSK at BT = 0.3

Transmitter Phase Accuracy 5 Degrees RMS, 20 Degrees peak

Duplex Spacing 45 MHz GSM / 95MHz DCS

Frequency Stability + 0.10 ppm of the downlink frequency (Rx)

Operating Voltage Mid Rate Charger: 4.0V, 350mA +/-10%

(Open Circuit Voltage =13.0V +/- 10%)

EIHF or VPA Supply:

Mid Rate = 6.25V, 400mA +/-5%

Fast Rate = 6.25V, 900mA +/-5%

Battery Operating Voltage: 2.85V(Radio Shut Down voltage)

To 5.1V Max (Radio Over Voltage Protect)

Transmit Current Typically 300 mA avg, 1.0A peak

Stand-by Current Typically 7.0 mA (DRX2)

Dimensions 130mm x 47mm x 27mm

Size (Volume) 120cc with Battery

Weight 140g with Battery

Temperature Range -10C to +55C

Transmitter

Function Specification

RF Power Output 33 dBm + 2dB GSM/ 30 dBm + 2 dB DCS

Output Impedance 50 ohms (nominal)

Spurious Emissions -36 dBm from 0.1 to 1 Ghz

-30 dBm from 1 to 4 Ghz

Receiver

Function Specification

RF Level -102 dBm GSM / -100 dBm DCS

RX bit error rate (100 k bits) < 2%

Channel Hop Time 500 microseconds

Time to Camp Approximately 5-10 seconds

Speech Coding

Function Specification

Speech Coding Type Regular Pulse Excitation / Linear Predictive Coding with Long

Term Prediction. (RPE LPC with LTP).

Bit Rate 13.0 k bps

Frame Duration 20 ms

Block Length 260 bits

Classes Class 1 bits = 182 bits. Class 2 bits = 78 bits

Bit Rate with FEC Encoding 22.8 k bps

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Motorola T2282 Manuel de service Page 9

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