A008 / A6188+
Level 1 & 2 Service Manual
1
Specifications
General Function
Specification
Frequency Range GSM
Frequency Range DCS
Frequency Range PCS
880-915 MHz TX (with EGSM)
925-960 MHz RX
1710-1785 MHz TX
1805-1880 MHz Rx
1850.2 – 1909.8 MHz TX
1930.2 – 1989.8 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 80MHz PCS
Frequency Stability
+ 0.10 PPM of the Downlink frequency (Rx)
Operating Voltage
Full Rate PSU = 4.4V +/- 5%
(During Charging = VBatt +/-5% 6.63V
Mid Rate Charger = 5.9V +/- 0.3V
CLA Supply = 4.4V
Battery Operating Voltage = 2.85V(Radio Shut Down voltage)
To 4.2V Max
Transmit Current
Typically 250 ma avg., 1.0A peak
Stand-by Current
Typically 7.0 ma (DRX2)
Dimensions
130mm x 46mm x 24.5mm
Size (Volume)
105cc with Batt
Weight
106g with Batt
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