ProductsBroadcast front-end equipment

  • Product Name:

    Meishida 4-channel digital analog audio and video radio frequency output monitoring AV cable conversion old TV modulator

  • Categories:Broadcast front-end equipment / Products
  • Date:2020-08-14
  • Four-way frequency isolation modulator Four-way modulator Modulator CATV Radio and TV modulator Multiplex modulation Features: 1. Four channels of video and audio input, one RF output with four channels. 2. Using high-fr ...
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1 pcs sample
119 USD
/pcs
USD
Airmail 25days

pcs
USD
/pcs
USD
Airmail 25days

Product Description

Four-way frequency isolation modulator Four-way modulator Modulator CATV Radio and TV modulator Multiplex modulation

Features:

1. Four channels of video and audio input, one RF output with four channels.

2. Using high-frequency modulation, low out-of-band interference.

3. The sound and image adopt MCU phase lock technology, and the frequency stability and accuracy are high.

4. Each functional circuit of the whole machine adopts chip technology, and the whole machine has high reliability.

6. Easy to operate, volume and video modulation can be adjusted on the front panel.

technical parameter:

Radio frequency

Output frequency range: 47~870 any four frequency separation channels are optional

Frequency accuracy: ±5kHz

Output level: 90dBμV

Out-of-band suppression:-60dBc max

Output impedance: 75Ω

Output reflection: 12dB min any channel

video

Sound-image carrier: 18±2dB

Input level: 0.6~1.5Vp-p

Video input impedance: 75Ω

Video input reflection: 30dB min

Signal to noise ratio (weighted): 60dB

Delay: 45 nsec

In-band flatness: ±1dB

Differential gain: ±5% (modulation degree is 87.5%)

Differential phase: ±5° (modulation degree is 87.5%)

Audio

Input level: -10~10 dBm

Input impedance: 10KΩmin

In-band flatness: ±1dB

Distortion: 1%

Signal to noise ratio: -60dB

The distance between images and sound is determined according to the standard

power supply

Input AC voltage: 220V

Power consumption: 8W max

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