DVB-(T) Digital Transmitter (200W-600W)

Short Description:

DVB-T Terrestrial Digital Transmitter DEXIN DUT-8322 transmitters are professional DVB-(T) transmission system which give sustained power output and with compact structure design to save space. It supports to work in SFN and MFN system. It can work with single-carrier mode and multi-carrier mode, and support single channel and broadband transmission.

This transmitter has a very high linear and high reliability as it takes high power gain and high linear LDMOS tube amplifier module.

With its good reputation at home and abroad, DUT-8322 transmitters have been widely used in HD/SD digital TV single transmit and broadcasting system.

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Product Detail

Product Tags

Features

Improved signal transmitting quality

Intelligent, modularized amplifier unit, takes high power gain and high linear LDMOS tube amplifier module design

Low power consumption super linear design, improve the transmission power of the transmitter, and reduce the nonlinear distortion

Support AGC function, with sustained power output, to approve the transmitter have good stability and reliability

Support MFN and SFN system

LED on the front panel supporting alarm and signal monitor

Air cooling system with low consumption and low noise

Multi lightning protection design, good protection for whole equipment.

24 hour working unmanned

Easy to install, user friendly design

Specifications

Item		Technical Spec
Basic Parameter	Standard	DVB-(T)
	Modulation Mode	support 4/16/32/64 QAM mode
	Working frequency	470MHz～806MHz
	Output rating	200W/300W/400W/500W/600W Optional
	Frequency accuracy	MFN: ≤±100Hz / SFN：≤±1Hz
	L.O. Phase Noise	≤ – 70dBc@10Hz
		≤ – 90dBc@100Hz
		≤ – 100dBc@1kHz
		≤ – 105dBc@10kHz
		≤ – 115dBc@100kHz
		≤ – 130dBc@1MHz
	variation of output power	±0.2dB
	Inband spectrum ripple	±0.5dB（fc±3.591MHz）
	Shoulder Level	≤-40dB@ Central frequency, IF±4.2MHz
	MER	≥36dB
Output Character	Output impedance	50Ω
	output reflection loss	≥20dB
	Output interface	200W/300W/400W: L29-K; 500W/600W: 1-5/8”, directly-fed
Environment Condition	Working temperature	-20~+50℃
	Storage temperature	-30~+75℃
	Relatively humidity	＜95% (25℃ no condensation)
	Cooling mode	inside cooling fan
	atm press	86~106kPa
	power supply	AC, 220±20%, 50Hz AC, 380±20%, 50Hz
	Machine room requirement	less dust, no friction

Principle Chart

Main Components List (Standard Configuration)

S/N	Component	200W	300W	400W	500W	600W	Remarks
S/N	Component	Qty (piece)
1	Cabinet/Rack	N/A	1	1	1	1	These configuration is standard. If customer need certain redundancy component, it is available and negotiable.
2	Power Supply	1 (Built-in)	1	1	1	2
3	Exciter	1 (Built-in)	1	1	1	1
4	Power Amplifier	1 (Built-in)	1	1	1	2
5	Monitor Unit	N/A	1	1	1	1
6	Filter	1 (Built-in)	1	1	1	1