CATV Modulator: Luxurious Agile Channel Modulator
Model CG-SK8900M Luxurious Agile Channel Modulator
Specifications
Reflection Output Frequency Range 47MHz-870MHz variable
Frequency Accuracy В± 5kHz
Output Level ≥115 dBV
Out of Band Suppression ≥60dBc max.
Output Impedance 75 Ω
Input Reflection 12dB min. in any frequency
Video to Audio Carrier Ratio 18 В± 2dB
Video Frequency Input Level 0.6 ~ 1.5Vp-p
Input Impedance 75Ω
Input Reflection 30dB min
K Coefficient 4 % max （ 2T pulse ）
Video S/N 60dB
C/L Delay 40nsec
Frequency Response В± 1dB
Differential Gain В± 4 % （ modulator 87.5 % ）
Differential Phase В± 4В° （ modulator 87.5 % ）
Audio Frequency Input Level -10 ~ 10 dBm
Input Impedance 10KΩ min.
Frequency Response В± 1dB max. （ 40Hz ~ 15kHz ）
Distortion 1 %
Signal to Noise Ratio -60dB
Audio Image Interval according to the TV system standard
Power Supply Voltage 110 ~ 245V
Power Consumption 15W max.
Dimensions 440(L)* 212(W) * 44(H) (mm)
Weight 3kg max.
Working Temperature 0В°C ---- + 45В°C
Features
1.High quality SAW filter process, low noise figure can avoid system CNR worse; suitable for professional
CATV system;
2. Intermediate frequency modulated and adopt 3 SAW filters, low spur out of band;
3. Audio intermediate frequency process, high frequency video process. MCU technique is applied to audio and
local oscillator to ensure high performance and stability;
4. Adopt modularization for output impulse and SMT technology is applied to MMIC circuit to ensure the unit
in high reliability. IF input and output port for further operation;
5. LCD displays frequency, use up and down button to select channel or frequency;
6. Convenient control, frequency level adjustment was designed on the front panel; output level, A/V,
volume and video index all adjusted by 32 steps variable respectively;
7. Intermediate frequency input and output port;
8. High efficiency SMPS;
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