16M 16-channel integrated plug-in adjacent frequency modulator
Introduction: Cable TV has been digitally transformed in a considerable part of China. However, some small hotels, hotel rental houses and other occasions will face new choices. In this regard, we have launched a convenient 16-way integrated modulator that is easy to install and save space. It can help you easily build a cable TV front-end room suitable for your own use. Features: 1 Modulation circuit adopts today's mainstream regulating chip with single-chip control, stable and reliable. 2 The modulation circuits of each channel are completely independent, and the channel configuration is very flexible and convenient. 3 The power supply has a large amount of redundancy and can work continuously and continuously for many years. 4 The relevant debugging of cable TV transmission equipment has been completed before leaving the factory. It can be debugged on site and input AV signal to work. It can be installed by non-professionals. 5 multi-channel modulator integrated installation, there are sixteen fans combined with your adjacent frequency modulator, with its own mixer, compact structure, no need for a dedicated computer room. Technical Parameters: Fixed channel: 47~860MHz Output level: ≥105dBμV Output level adjustable range: 0~-20dB (adjustable) Image / sound power ratio: -10dB ~ -30dB continuously adjustable Output impedance: 75Ω Parasitic output suppression ratio: ≥60dB Image carrier frequency accuracy: ≤±5KHz (within VHF band); ≤±10KHz (within UHF band) RF output reflection loss: ≥12dB (within VHF band); ≥10dB (within UHF band) Video input level: 1.0Vp-p (corresponds to 87.5% modulation) Video input impedance: 75Ω Differential gain: ≤ 5% (when the modulation is 87.5%) Differential phase: ≤5° (when the modulation is 87.5%) Chromaticity/luminance delay difference: ≤45 ns 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 Audio pre-emphasis: 50μs Power supply: AC 220V±10% 50Hz±2Hz, 50W Working environment temperature: 0～40°C Volume: 19 inches 4U
