1. INTRODUCTION
AH2401H is a 24 modular frequency fixed-channel modulator. It will be up to 24 audio and video signals into a road with 24 TV channels RF signals. The product is widely used in hotels, hospitals, schools, electronic teaching, factories, security monitoring, VOD video on demand and other places of entertainment, especially for digital TV analog conversion, and centralized monitoring system.
2. FEATURES
- Stable and reliable
- AH2401H of each channel is completely independent, channel configuration flexibility
- Image high frequency and RF local oscillator MCU technique are used, frequency stability and high accuracy
- The function of each integrated circuit chips are used, the whole high reliability
- High-quality power supply, 7x24 hour stability
AH2401H 24 in 1 Modulator | |
Frequency | 47~862MHz |
Output Level | ≥105dBμV |
Output Level Adj. Range | 0~-20dB (Adjustable) |
A/V Ratio | -10dB~-30dB (Adjustable) |
Output Impedance | 75Ω |
Spurious Output | ≥60dB |
Frequency Accuracy | ≤±10KHz |
Output Return Loss | ≥12dB(VHF); ≥10dB(UHF) |
Video Input Level | 1.0Vp-p(87.5% Modulation) |
Input Impedance | 75Ω |
Differential Gain | ≤5%(87.5% Modulation) |
Differential Phase | ≤5°(87.5% Modulation) |
Group Delay | ≤45 ns |
Visual Flatness | ±1dB |
Depth Adjust | 0~90% |
Video S/N | ≥55dB |
Audio Input Level | 1Vp-p(±50KHz) |
Audio Input Impedance | 600Ω |
Audio S/N | ≥57dB |
Audio Pre- emphasis | 50μs |
Rack | 19 Inch standard |
1. RF output level adjustment—Knob, adjustable RF output level
2. AV ratio adjustment—Knob adjusts the output of the A / V ratio
3. volume adjustment—Knob to adjust the output volume size
4. brightness adjustment—Knob to adjust the brightness of the output image
A. Output test port: Video output test port,-20dB
B. RF output: Multiplexer module modulated, after mixing the RF output
C. RF output regulation: Knob, adjustable RF output level
D. Power cascade output
Superposition of multiple modulators, you can cascade output therefrom to other power modulator to reduce power outlet occupation; careful not to cascade more than 5 to avoid excessive current.
E. Power Input: AC 220V 50Hz/110V 60Hz
F. RF input
G. HDMI input
AH2401H CATV Headend 24 in 1 HDMI Fixed Channel Modulator.pdf