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 1KW PROFESSIONAL DIGITAL

TV TRANSMITTER

·Of common amplification type,compatible with analog and digit in the part of amplification
·Having different signal interfaces of input levels,and can be connected with a variety of digital,analog modulators and exciters·Dual drive preamplifier of excellent AGC function;automatic switching rear-level power amplifier adopts modular redundancy design and hot plugging function.
·Electric source adopts intelligent current-equalizing switch;the electric source is in parallel connection.
·Currents and temperatures of various levels of amplification can be displayed digitally synchronously.When beyond the limit,an alarm will be given and automatic protection will be conducted.
·When over-power,over-actuating and over-standing wave ratio,an alarm will be given and automatic protection will be conducted.

 

·Amplification and every parameter of the whole machine can be synchronously displayed on LCD. ·The machine operation has two functions,that is,manual and automatic.Manual operation is finished by touching the LCD. ·When any unit of the signal channels of electric source,broadcasting will not be stopped. ·It can be connected with micro-computer,servers and communication network,and has telemetering and remote control function. ·The technical indicators of transmitters are superior to GY/T177-2001 standards. ·AC voltage of power grid can be widely used.The cabinet can be grounded reliably. ·Architectural structure of a variety of power levels from 300W to 10W ·Standard chassis structure;the cabinet is painted with fashion colors of international high-end products.

·Amplification and every parameter of the whole machine can be synchronously displayed on LCD.
·The machine operation has two functions,that is,manual and automatic.Manual operation is finished by touching the LCD.
·When any unit of the signal channels of electric source,broadcasting will not be stopped.
·It can be connected with micro-computer,servers and communication network,and has telemetering and remote control function.
·The technical indicators of transmitters are superior to GY/T177-2001 standards.
·AC voltage of power grid can be widely used.The cabinet can be grounded reliably.
·Architectural structure of a variety of power levels from 300W to 10W
·Standard chassis structure;the cabinet is painted with fashion colors of international high-end products.
Main Technical Indicators:
A.Overall performances：

1、	Output Power：	50W,100W,300W,1KW,3KW,10KW
2、	Output impedance：	50kΩ
3、	Ratio of image and sound power	10：1
4、	Working frequency：	13～48CH
5、	Inter-modulation distortion ：	≤-50dB
6、	Useless transmission：	≤-52dB  between neighbour channel   Fv-2.07MHz≤-40dB    ≤-60dB,outside neighbour channel
7、	Power consumption：	about 3.8KVA
8、	Air-cooled manner：	wind
9、	Shape Size：	580mm×990mm×1840mm
10、	Weight：	550kg

B.Image performance

1、	Video frequency input level：	1Vp-p±3dB plus polarity
2、	Video frequency input impedance：	75kΩ（BNC）
3、	The amplitude frequency characteristics
frequency tolerance with fv（MHz）                  -4.43 ≤1.25 1.25～0.75 -0.75 -0.5 -0.25～2 2～4.5 6 6～6.5 ≥6.5
Upper limit （dB） -30    -20    0.5     0.5     0.5    0.5   0.5   0.5     0.5     -20
Lower limit （dB） —   —    —     -3   -1.5    -0.5    -1     -3     —     —
4、	Group delay：	±50ns
5、	Wave distortion of luminance signal：	≤-50dB
	a.Field frequency square wave	≤2%
	b.Line slope	≤2%
	c.2T Sin wave distortion	≤2%
6、	Output power changes：	±0.25dB
7、	Blanking level changes：	±2.5%
8、	Low frequency luminance non-linear distortion	≤10%
9、	Differential gain	≤5%
10、	Differential phase	≤±5°
11、	Signal-to-clutter ratio of random clutters	(10KHz-6KHz)≥50dB
12、	Signal-to-clutter ration of low frequency period interference	(below 1KHz）≥50dB

　C.Sound performance：

1、	Audio Input Level：	0dBm±6dB
2、	Audio Input Impedance：	600Ω（balance）
3、	Maximum Frequency Deviation	±50KHz
4、	Distortion	≤0.5%
5、	The amplitude frequency characteristics	(40Hz～15KHt)±1dB
6、	Pre-emphasis curve
	Frequency（Hz）	100  400  1K  1.5K  3K  6K  10K  12K  15K
	Attenuation（dB）	-0.4  -0.35  0  0.46  2.3  6.2  9.9  11.4  13.2
7、	Signal-to-clutter ration of FM clutters：	≥60dB
8、	Signal-to-clutter ration of built-in carrier wave：	≥46dB
9、	Working environment
	Temperature	0～40℃
	Relative humidity	45～75%
	Power supply current	50Hz 3-phase 380V

This is a professional TV Transmitter which is used for TV station,  Welcome our customer come to china and visit the factory of  HLLY ELECTRONICS in China , for this item we only accept payment via bank wire transfer, our company bank information is: