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WSJ-M24H analog modulator

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1.1 Product Overview

WSJ-M24H is a 24-channel modular modulator developed by WSJE Company. It converts HDMI 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 HDMI inputs and 1 RF output (suitable for global use).

The modulation circuits for each channel are completely independent, offering highly flexible and convenient channel configuration.

Large power redundancy allows for long-term continuous stable operation.

Relevant debugging for cable TV transmission equipment is completed before shipment, eliminating the need for on-site debugging.

It can operate with input AV signals and can be installed and constructed by non-professional personnel.

Multi-channel modulator is integrated for installation, with a compact structure and no need for a dedicated machine room.


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1.3 Specifications

Fixed channel

47~860MHz

Signal input

HDMI 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

≤±5KHz(VHF In-band); ≤±10KHz(UHF In-band)

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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