Specifications

1. 4 in 1 adjacent analog modulator
2.PAL D/K,PAL B/G,NTSC (Optional )

Features

In accordance to adjacent frequency design, no interference between adjacent channel.
Adapting double-conversion,IF modulation, Acoustic filter,Phase-locked technology.
4 adjacent channels in 1 housing, firm structure, providing an economical solution.
19’ 1U standard structure, independent power supply, elegant exterior, flexible corollary equipment, convenient to maintenance

Specification

RF	Index	Specification
	Frequency range	(47 ~ 870)MHz (Fixed Channel)
	TV system	PAL D/K,PAL B/G,NTSC (Optional )
	Output return loss	VHF more than 12dB UHF more than 10dB
	Output level	105dBμV(independent output; more than 95 dBμV( combined output)
	Audio carrier power to video carrier power	(14 ~ 22)dB
	Frequency Accuracy	VHF± 5 KHz UHF ± 10 KHz
	Total frequency deviation	VHF ± 10 KHz UHF± 20 KHz
	video/audio interval	5KHz
	Carrier power ratio	more than55dB(In-channel) ≥62dB(Out-channel)
	Internal spurious output	≤- 60dB
	External spurious output	≤- 60dB

Video	Parameters	Specification
	Degree of modulation signal	≥80%
	Flatness in operating band	≤±1.5dB
	Gain of differential coefficient	≤5%
	Phase of differential coefficient	≤5°
	K Factor	≤4
	Delay difference of color or light	≤45ns
	Signal to noise ratio	≥52dB

Audio	Index	specification
	Pre-emphasis of audio	50μs
	Maximum partial frequency of audio	± 50KHz
	Audio flatness	± 1dB(40Hz ~ 10KHz)
	Distortion degree of audio	≤1%
	Signal to noise ratio	≥60dB