Gdm-020 digital modulator

12 Channels-D

The 12 Channels-D a 4RU pre-installed headend system which is perfectly set in factory. It consists of 12 pieces HD modulator cards and a base unit with power supply and active combiner. With its size and cost-saving price, it becomes the most popular digital modulator headend in the hotel cable TV system.

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Place of Origin:Guangdong,China
Model Number:GDM-020 (12 Channels-D)
ITEM
TYPICAL
Q.C LIMIT
TEST CONDITIONS
1. Encoding Section
Video
Encoding
MPEG-2
HD:MPEG-2/MP@ML
Bit Rate
256QAM:7.6Mbps
64QAM:4.8Mbps
Average Encoding
256QAM:8Mbps
64QAM:5Mbps
Resolution
HD 1080p 25/30 Max
Audio
Encoding
MPEG-1 Layer 2, AAC-LC, AC3
Sample Rate
48KHz
Bit Rate
384kbps
2. Input
Video Input
HDMI:1080p 25/30, 1080i 50/60 Max,
Input Connectors
Closed Caption (RCA) / HDMI
3. QAM Modulator
Modulation Types
ITU-T J83 Annex B
Cable Standard
STD
QAM
64QAM, 256QAM
MER
≥35dB
RF Frequency
57 – 861MHz
RF Output Level
100dBμV
100dBμV ±5dBμV
RF Level Adj
0dB ~ -36dB
Attenuation step
1dB per step
4. System
Remote management
Web Management
Ethernet port
RJ45,100M
USB Power Load
5VDC 0.5A
5. General
Power supply
12VDC 1.0A
Operation Temperature
5°C - 40°C
Relative Humidity
20% ~ 80%


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