Specifications - Motorola T720 Instruction Manual

Level 3 Service Manual

Specifications

General Function
Frequency Range GSM
Frequency Range DCS
Channel Spacing
Channels
Modulation
Transmitter Phase Accuracy
Duplex Spacing
Frequency Stability
Operating Voltage
Average Transmit Current
Average Stand-by Current
Dimensions, with 550 mAh battery
Size (Volume)
Weight
Temperature Range
Battery Life, 550 mAh LI Ion Battery
Transmitter Function
RF Power Output
Output Impedance
Spurious Emissions
Receiver Function
Receive Sensitivity
RX bit error rate (100k bits) Type II
Channel Hop Time
Time to Camp
Speech Coding Function
Speech Coding Types
6881040B60
Specification
880-915 MHz Tx (with EGSM)
925-960 MHz Rx
1710-1785 MHz Tx
1805-1880 MHz Rx
200 kHz
174 EGSM, 374 DCS carriers with 8 channels per carrier
GMSK at BT = 0.3
5 Degrees RMS, 20 Degrees peak
45 MHz GSM, 95 MHz DCS
± 0.10 ppm of the downlink frequency (Rx)
+3.0V dc to +4.2V dc (battery)
+4.4V dc to +6.3V dc (external connector)
310 mA nominal at room temperature
6.4 mA (DRX2), 3.5 mA (DXR9) nominal at room temperature
90.47 mm x 47.3 mm x 23.3 mm (with CLI included)
90.47 mm x 47.3 mm x 21.3 mm (without CLI)
80.67 cc with 550 mAh battery
86.19 cc with 750 mAh battery
93.04 cc with 1100 mAh battery
106 gm with 550 mAh battery
111 gm with 750 mAh battery
122 gm with 1100 mAh battery
-10° C to +55° C (+15° F to +130° F)
Talk Time up to 220 minutes
Standby up to 152 hours
All talk and standby times are approximate and depend on
network configuration, signal strength, and features selected.
Standby times are quoted as a range from DRX=2 to DRX=9.
Talk times are quoted as a range from DTX off to DTX on.
Specification
33 dBm nominal GSM, 30 dBm nominal DCS
50 ohms nominal
-36 dBm from 0.1 to 1 GHz, -30 dBm from 1 to 4 GHz
Specification
-106 dBm GSM, -104 dBm DCS
< 2%
500 microseconds
Approximately 5-10 seconds
Specification
FR - Regular pulse excitation / linear predictive coding with long
term prediction (RPE LPC with LTP)
HR - Vector sum excited linear prediction (VSELP)
EFR - Algebraic CELP (ACELP)
AMR - Algebraic CELP (ACELP)
August 01, 2002
Specifications
9