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Order Number: MCUK990801G8
Issue 1
Revision 0
Technical Guide
GD90 Personal Cellular Telephone
Handheld Portable
EB-GD90
Specification
Unless stated these specifications are with Battery Pack (EB-BSD90) fitted.
Battery life figures are dependent on network conditions.
900 MHz
1800 MHz
Frequency range
Tx: 890 - 915 MHz
Rx: 935 - 960 MHz
Tx: 1710 - 1785 MHz
Rx: 1805 - 1880 MHz
Tx/Rx frequency separation
45 MHz
95 MHz
RF channel bandwidth
200 kHz
Number of RF channels
124
374
Speech coding
Full rate/Half rate/Enhanced
Full rate
Full rate/Half rate
Operating temperature
-10°C to +55°C
Type
Class 4 Handheld
Class 1 Handheld
RF Output Power
2 W maximum
1 W maximum
Modulation
GMSK (BT = 0.3)
Connection
8 ch/TDMA
Voice digitizing
13 kbps RPE-LTP / 13 kps ACLEP / 5.6 kps CELP / VSLEP
Transmission speed
270.3 kbps
Diversity
Frequency hopping
Signal Reception
Double superheterodyne
Intermediate Frequency
282MHz and 45MHz
Antenna Terminal Impedance
50
Ω
Antenna VSWR
<2.1 : 1
Dimensions
Height: 118 mm
Width: 42
mm
Depth: 16.5 mm
Volume
84.5 cc
Weight
88 g
Display
Graphical chip on glass liquid crystal, Alphanumeric 16 x 3
characters, 5 icons and 6 x 1 characters
Illumination
Green:
4 LEDs for the LCD
8 LEDs for the keyboards
1 LED Incoming call
Red:
1 LED Charging indicator
Keypad
17 keys, Navigation key
SIM
Plug-in type only
External DC Supply Voltage
3.6 V
Battery
3.6 V
Standby Battery Life
DRX 9
95 hrs maximum
Conversation Battery Life
PL 7, DTX 50%
200 minutes
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or
cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or
products dealt with in this service manual by anyone else could result in serious injury or death.
