Detailed Product Description

DMB-4100 GB20600 Gap Filler is employed to increase coverage of the weak-signal area in terrestrial digital TV broadcasting network, which can effectively improve the coverage quality and scope. DMB-4100 adapts advanced echo cancellation arithmetic to cancel the coupling between input and output signals. It has on channel repeater mode and transposer mode, supports MFN and SFN. It can be used for various kinds of coverage of the weak-signal area.

Main features

• GB20600-2006 supported
• Linear and non-linear pre-correction supported
• Intelligent automatic output power management
• Programmable transfer delay
• On channel repeater mode and transposer mode supported
• Web browser remote control, SNMP is optional

SPECIFICATION

• RF Input

Frequency                 470 MHz to 862 MHz

Channel Band width   5,6,7,8MHz

Sensibility range        -75~-40dBm

Return loss                >15dB

Connector                 50ohm, N-type female

• RF Output

Frequency                 170 MHz to 862 MHz, in1Hz step

Main Output Level      0dBm

Attenuation:               0 to10 dB in 0.1dB step

Level Stability:0.1dB/10

Return Loss:>15dB

Monitoring Output Level     -20dB

MER                        >33dB

Shoulder                  >40dB

Spurious                  >50dB

Connector                 50ohm N-type female

• MPEG TS output

1 DVB-ASI monitoring output(DVB-T/H only)

Comply to EN50083-9 ASI

Bit rate: 3-31.67Mbps(comply to ETS 300744)

MPEG packet:188

Connector: 75ohm, BNC

• Repeat functions

Transfer delay time           Max.200us, in step of 0.1us

Echo cancellation             Self adaption

Digital Pre-correction        support non-linear and linear digital pre- correction

Power Management          Progressive power rising

Automatic power limitation non over coupling

• Clock and Synchronization

Internal 10MHz clock        

Stability            0.5ppm

Aging                < 3ppm

Tuning               0.6ppm

Output level       0dBm±3 dBm

External 10MHz Reference    

Connector         75ohm BNC

Frequency        10MHz

Level                -15 to+15dBm

• Control

Front Panel                          LCD display & cursor/execute keys

Web Server                          Embedded

Power

Voltage                               AC 90~260V

Frequency                           50~60Hz

Consumption                       Max. 45W

• Mechanical Parameter

Operational temperature       0~45

Storage temperature            -20~70

Humidity                             10%-95%

Dimension                           318mm(W)×483(L)mm×44mm(H)

Weight                                6kg