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Add: No. 7, Longtian West Road, Dadun, Xintang Town, Zengcheng, Guangzhou City
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+86-185-6525-09081.1 Product Overview
WSJ-M24 is a 24-channel modular modulator developed by WSJE Company. Its function is to convert AV signals into RF signals for output. This product is widely used in places such as hotels, factories, hospitals, schools, and enterprises that require a television system.
1.2 Key Features
Supports 24 AV input channels and 1 RF output (suitable for global use).
Each channel's module is fully independent, allowing flexible channel configuration.
Employs image high-frequency and RF local oscillator MCU technology, ensuring stable and high-precision frequency.
All integrated circuit chips have complete functions, guaranteeing overall high reliability.
High-quality power supply ensures stable operation 7x24 hours.
1.3 Specifications
Fixed channel | 47～860MHz |
Signal input | AV Input |
Signal output | RF signal output |
Output Level | ≥105dBμV |
Output level adjustable range | 0～-20dB （Adjustable） |
Image/Sound Power Ratio | -10dB～-30dB Continuously adjustable |
Output impedance | 75Ω |
Image carrier frequency accuracy | ≤±10KHz |
RF Output Reflection Loss | ≥12dB（VHF In-band）； ≥10dB（UHF In-band） |
Video input level | 1.0Vp-p（Corresponding to 87.5% modulation depth） |
Video Input Impedance | 75Ω |
Differential Gain | ≤5%（When the modulation degree is 87.5%） |
Differential phase | ≤5°（When the modulation degree is 87.5%） |
Video in-band flatness | ±1dB |
Video Modulation Range | 0～90% Continuously adjustable |
Video Signal-to-Noise Ratio | ≥55dB |
Audio input level | 1Vp-p（±50KHz Frequency offset） |
Audio input impedance | 600Ω |
Audio Signal-to-Noise Ratio | ≥57dB |
Power supply | AC 220V±10% 50Hz±2Hz，60W |
Working Environment Temperature | 0～40℃ |
Dimensions/Weight | 59*29*23CM /10KG |
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