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SDM24 24 in 1 SD AV to RF fixed frequency analog modulator

M24 is a 24 modular frequency agile 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.

Product Features

Ø Stable and reliable

Ø M24 of each channel is completely independent, channel configuration flexibility

Ø Image high frequency and RF local oscillator MCU technique are used, frequency stability and high accuracy

Ø The function of each integrated circuit chips are used, the whole high reliability

High-quality power supply, 7x24 hour stability





Output Level


Output Level Adj. Range

 0-20dB Adjustable

A/V Ratio

 -10dB-30dB (Adjustable)

Output Impedance


Spurious Output


Frequency Accuracy


Output Return Loss

 12dBVHF); ≥10dBUHF

Video Input Level

 1.0Vp-p87.5% Modulation

Input Impedance


Differential Gain

 5%87.5% Modulation

Differential Phase

 5°(87.5% Modulation

Group Delay

 45  n s

Visual Flatness


Depth Adjust


Video S/N


Audio Input Level


Audio Input Impedance


Audio S/N


Audio Pre- emphasis



19 Inch  standard 


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