DB-1000 SPECIFICATIONS

 

General  

Frequency Bands

Sub-band 1: 138-174 MHz
Sub-band 2: 216-222 MHz
Sub-band 3: 360-400 MHz
Sub-band 4: 406-470 MHz
Sub-band 5: 450-512 MHz

Operating Temperature Range -30° to +60°C
AC Input Voltage 90-264 VAC, 47-63 Hz, 200 watts maximum
DC Input Voltage 13.6 VDC nominal, 12 amps maximum
Auxiliary DC Output 13.6 VDC nominal, internally fused at 2 amps
Internal Standby Battery Capacity 7 amp hours @ 12 VDC
DV/IP Network Interface Ethernet, 10BaseT or 100BaseT
Duty Cycle Continuous
Cooling Multiple fans
Mounting 19 inch standard EIA rack, 1 rack unit high
Weight 25 lbs (11.4 kg)
Dimensions 17.25" W x 17.125" D x 1.75" H
    
Transmitter  
Electronic Bandwidth (no tuning) Full sub-band
Nominal Output Power (digitally adjustable) 5-25 watts UHF;5- 30 watts VHF and 220 MHz
Output Impedance 50 ohms
Output Connector Type N
Typical Channel Spacing 12.5 kHz
Frequency Stability, standard

0.50 ppm

Tuning steps 6.25 kHz; 5 kHz, 2.5 kHz
Synthesizer settling time <200 ns
Operational Mode TDMA/FDMA
Modulation Type 4FSK
Modulation Protocol DV/IP trunking or conventional
Harmonics, Spurious -90 dBc
Occupied Bandwidth 10.65 kHz
Licensed Bandwidth (12.5 kHz channel spacing) 11.2 kHz
Maximum 4FSK data deviation ± 3.3 kHz
Data Transmission Rate 10,600 bps, 5,300 bps
Data Rate Stability <2 ppm
Morse Code ID FM MCW deviation ± 1.6 kHz
Morse Code ID FM modulation frequency 1300 Hz
Manual Alignments and Adjustments None
      
Receiver  
Type Dual Receiver Spacial Diversity
Electronic Tuning Bandwidth Full sub-band
Input Impedance 50 ohms

Antenna Inputs

RX 1A - Main receive input #1
RX 2A - Main receive input #2
RX 2B - Auxiliary receive input

Isolation, RX 2B input to RX 2A and RX 1A -90 dB
Input Connectors BNC
Preselector Bandwidth (electronically tuned) 4 MHz
Typical Channel Spacing 12.5 kHz, 6.25 kHz
Frequency Stability 0.50 ppm
Minimum tuning step 6.25 kHz; ; 5 kHz, 2.5 kHz
Synthesizer settling time <200 ns
Digital Sensitivity, 0 Frame Error Rate -118 dBm (0.25 uV)
Bit Error Rate Floor 0.01%
Signal Displacement Bandwidth >1 kHz
Front End IP3 +24 dBm
Front End Noise Figure 0.5 dB
RX 2A to RX 2B ant/freq change (<10 MHz) <200 ns
Technician Monitor Output Mode FM Demod to front panel loudspeaker
RSSI Linearity Range 60 dB
Modulation compatibilty 4FSK
Receive Data Rate 10,600 bps
Demodulation protocol DV/IP conventional or trunking
Manual Alignments and Adjustments None
   
Internal Router  
Processor Embedded Pentium-compatible 32 bit
RAM Up to 256 MB
Program Memory Removeable CF Memory up to 512 MB
Operating System Linux supporting DV/IP Router
External Network Protocol TCP/IP
   
Internal GPS Receiver  
Channels 12
Frequency 1.57542 GHz
Antenna input impedance 50 ohms
Antenna type External active antenna required
Antenna voltage feed +3.3 volts DC
Nominal input sensitivity -120 dBm
Minimum signal for lock -140 dBm
    
Rear Panel Connectors  
TX Output Type N
RX Input 1A BNC
RX Input 2A BNC
RX Input 2B BNC
Ethernet RJ-45 8 pin
RS-232 #1 and #2 9 pin D connector
Telephone line (for interconnect option) RJ-11 6 pin
USB USB Type 1
Accessory Connector (alarms,VGA, keyboard, ext PA) AMP dual row 0.1 spaced header
DC Input 2 pin Molex, locking
AC Input 3 pin International AC connector
Auxiliary Chassis Ground Threaded 8-32 PEM nut; 8-32 machine screw req'd
GPS Antenna SMA
Factory Automatic Test Connector AMP dual row 0.1 spaced header
    
FCC Approvals

OHN-B1000-2

OHN-B1000-4

Industry Canada Approval 3338B-B10004

Typical Installation Manual

 

 

Copyright 2003 Digital Wireless Corporation, Post Office Box 86486, Los Angeles, CA 90086 USA. All rights reserved.