GDM-015 模拟调制器

GAQD-ASI
The GAQD-ASI is an ATSC/QAM professional grade mini demodulator designed for cost effective digital-to-analog conversion of an unencrypted 8VSB (Off-Air SD/HD TV signal) or QAM unencrypted (digital CATV) RF signal to baseband NTSC video and left and right stereo audio outputs. All of the 18 ATSC video formats including HD format can be received by the HMDD and then converted for display on non-digital TV sets over analog channels with the use of a
modulator.

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产品参数

Place of Origin:Guangdong,China
Model Number:GDM-015(GAQD-ASI)
RF TUNER：
Input frequency:
54 to 864 MHz , Broadcast or EIA CATV Channels（STD,HRC,IRC）
Input Channel Bandwidth
6 MHz
Input Impedance:
75 ohm
Input Return Loss:
6 dB minimum
Input Noise Figure:
10 dB maximum
Optimum Input Level Range:
-15 ～ +15dBmv
Maximum Input Power:
＜-16 dBm summed over entire input range
Input AGC Range:
-20 to +30 dBmv
DEMODULATOR：
Modulation Types Accepted:
8VSB, 64QAM and 256 QAM
Symbol Clock Frequency:
8VSB；10.762 Mhz
Symbol Rates:
64 QAM；5.057 Ms / sec
256 QAM；5.3605 Ms / sec
OUTPUT：
ASI Output Version-Serial Output:
ASI according to ITU B specifications via one
Output Level:
75 Ohm type BNC connectors
0.8Vp-p mi
GENERAL：
DC Power Requirement:
5VDC＠400mA
Operating Temperature Range:
0℃ to 50℃ Ambient temperature around case
Mechanical Dimensions:
2.2〞W×3.5〞H×8.7〞D（5.5cmW×8.9cmH×22cmD）
Weight:
1 lb 2 oz.（.51kg）

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