Dowtelecom Inc. DTT-1900 User Manual
DTT-800/1900 Operating Manual
38
2.2 1.9GHz bandwidth
Air Interface
Common air interface standard →J-STD-008, IS-95B
FREQUENCY → TX: 1850-1910MHz
RX: 1930-1990MHz
TX Max. Output Power → 200mW ~ 300mW
RX Sensitivity → - 104dBm below
Vocoder → 8K/13K QCELP, 8K EVRC
Channel Bandwidth → CDMA 1.25Mhz
RX Conducted Spurious → TX BAND : -61dBm below
RX BAND : -81dBm below
MOD/DEMOD → O QPSK/QPSK
Frequency Accuracy → Fo±150Hz
Battery Back-up
Type → Ni-Cd
Capacity → 6V @ 1.7A
Talk Time → 2 Hours
Standby Time → 20Hours ( at slot cycle index 1 )
Connectors for various
Service support
RJ-11 → Standard wire-line telephone
Analog G3 Fax (Optional)
Serial port → Maintenance Purpose
Data Service Purpose (Internet, PC Fax)
Physical
Dimension (D
×
W
×
H) → 190
×
170
×
55mm
Weight (Including Backup battery) → 750g
Environmental
Operating temperature → 0
°
C ~ +50
°
C
Power Supply
Input Power → 100 ~ 270V, 50/60Hz
Output Power → DC 12V @ 1.3A
Accessories
Internal Antenna → Di-Pole Antenna
Power supply (SMPS)
Power Cord
Tel-line Cord
External Antenna (Optional) → 10dBi Gain Directional
Panel Antenna