IF Adjacent Modulator
group nameCATV Analog Headend
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Min Order1 piece
brand nameEASTEC
modelE-203
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update timeWed, 15 Aug 2012 22:35:12 GMT
Packging & Delivery
Min Order1 piece
Briefing
Detailed
Introduction
E-203 modulator is one economical model of intermediate frequency (IF) modulator elaborately manufactured by our company according to market characteristics in villages and towns. It is applicable to many channels, and features good sideband characteristic, and accurate PLL frequency. It is the modulator that costs almost as low as high frequency (HF) modulator, but gives extraordinarily excellent parameters of performance.
Features
l Equipped with IF SAW filter, it has excellent vestigial sideband characteristic.
l With simple and optimized circuit design, it enjoys higher reliability.
l With CPU controlled PLL, its carrier frequency is accurate, stable.
l Video modulation depth, A/V ratio, audio deviation, RF level are all adjustable.
Item | Unit | Specifications |
RF | ||
Output Frequency | MHz | 48.25~450 |
Max Output Level | dBµV | 110 |
V/A Carrier Power Ratio | dB | 10~30 |
Spurious Rejection | dB | ≥60 |
Freq Accuracy | KHz | ≤10 |
Video | ||
Video Mod Depth | % | 87.5 |
Freq Response Within | dB | ≤2 |
Differential Gain | % | ≤8 |
Differential Phase | ° | ≤8 |
C/L Delay | ns | ≤45 |
Video S/N | dB | ≥45 |
Audio | ||
Audio Dev | KHz | ±50 |
Audio Freq Response | dB | ≤1.5 |
Audio S/N | dB | ≥55 |
General | ||
Power Supply | V | 180~240/0.5 |
Temperature Range | ℃ | 0~40 |
Dimensions | cm | 48.3×14.8×4.5 |
