M3588
2.1Specifications of M3588
General
Function | Specification |
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Frequency Range GSM | ||
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Frequency Range DCS |
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Channel Spacing | 200 kHz |
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Channels | 174 GSM/374 DCS | carriers with 8 channels per carrier |
Modulation | GMSK at BT = 0.3 |
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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 | +4.0V dc to +6.0V dc (battery) | |
| +6.7V dc to +8.6V dc (external connector) | |
Transmit Current | Typically 250 ma avg, 1.0A peak | |
Typically 7.0 ma (DRX2) | ||
Dimensions | 140mm X 50mm X 25mm | |
Size (Volume) | 155 cc |
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Weight | 168 g |
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Temperature Range |
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Transmitter
Function
Specification
RF Power Output | 33 dBm + 2dB GSM/ 30 dBm + 2 dB DCS |
Output Impedance | 50 ohms (nominal) |
Spurious Emissions | |
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Receiver |
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Function
Specification
RF Level | |
RX bit error rate (100 k bits) | < 2% |
Channel Hop Time | 500 microseconds |
Time to Camp | Approximately |
Speech Coding |
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Function | Specification |
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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 |
2 | of 45 | European Customer Services |
