Motorola service manual Specifications of M3588

M3588

2.1Specifications of M3588

General

Function	Specification
Frequency Range GSM	880-915 MHz TX (with EGSM)
	925-960 MHz RX
Frequency Range DCS	1710-1785 MHz Tx
	1805-1880 MHz Rx
Channel Spacing	200 kHz
Channels	174 GSM/374 DCS	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	+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
Stand-by Current	Typically 7.0 ma (DRX2)
Dimensions	140mm X 50mm X 25mm
Size (Volume)	155 cc
Weight	168 g
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
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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