NDS3340A 4 in 1 QAM is a cost effective integrated QAM modulator designed by DEXIN Company. This device is integrated up to 4 channel QAM modulating carrier outputs, in which each carrier has independent signal channel encoding and direct RF output. Therefore, the device is featured with excellent RF performance index. It supports 4 channel ASI inputs. Alternatively, this device can take various RF inputs of DVB-S/DVB-C/DVB-T signals by installing the relevant build-in tuners. Hence, one PCS 4 in 1 QAM modulator can work as 4 standalone QAM modulators, significantly reducing the network operators’ head-end cost. NDS3340A can also support local and remote control to set its working parameters.

Feature

? 1, Fully support EN300 429/ITU-T J.83A
? 2, 4 adjacent channel QAM carrier
? 3, 4 ×ASI inputs and 188/204 byte TS packet support
? 4, DVB-S/- S2/- C/ -T RF input (optional)
? 5, Accurate PCR adjusting support
? 6, 16, 32, 64, 128, 256 QAM constellation support
? 7, Symbol rate adjustment range: 5.0Mbps~7.0Mbps
? 8, SI editing support
? 9, RF output frequency: 48MHz~1000MHz, 1khz step
? 10, RF output level: -16dbm~0dbm, 0.5db step
? 11, Excellent RF output performance index, MER≥40db
? 12, LCD & keyboard operating
? 13, NMS support

Specifications

Input	4 × ASI inputs, BNC interface
	DVB-S/- S2/-C/-T RF input (optional)
Modulation parameters	QAM channel 4
	Standard EN300 429/ITU-T J.83A
	Symbol rate 5.0~7.0Mbps, 1kbps step
	Constellation 16 / 32 / 64 / 128 / 256QAM
	FEC RS(204, 188)
RF Output Interface	F interface, 75Ω impedance
Frequency range	48~1000MHz, 1khz step
Output level	-16dbm~0dbm(each carrier) 0.5db step
MER	≥ 40db
ACLR	(Adjacent Channel Leakage Ratio) − 60 dBc
System	LCD/keyboard operating and NMS support
	English and Chinese interface conversion
	Ethernet software upgrade
General Dimensions	(Width × Length × Height) 482mm×455mm×44.5mm
	Approx weight 6.7Kg
	Temperature range 0~45℃(Operating), -20~80℃(Storage)
	Power Requirements AC 110V±10%, 50/60Hz or AC 220V±10%, 50/60Hz
	Power consumption 25W