digital tv transmitter 3kw

3KW digital TV transmitter DVB-T DVB-S High performance digital exciter High stable & effective power supply Good function

3KW digital TV transmitter with DVB-S or DVB-T system of wireless transmitters

Product Characteristics:

1. Accord with China's digital TV standards,GB20600-2006.

2. Operating Frequency,470-860MHZ,Single Frequency Network,Multiple Frequency  Network

3. Double exciter.

4. Linearity and nonlinear digital beforehand correction.

5. Designed by solid-state digital modular.

6. Using high MOSFET of LDMOS,Good linear and big Redundant surplus power.

7. High power gain power amplifier module of one-time synthesis.

8. With multiple switch power supply of parallel flow power, design by hot spare, if a power 

    supply damaged, do not affect the transmitter working.

9. The output terminal with digital band pass filter, low loss, the inhibit degree of outside the band

    is high.

10. Built-in protecting circuit and abnormal warning against over-current,over-heat,over-

      voltage,over-exciter,over-SWR, can ensure security.

11. Method of forced air cooling of electronic equipment, the merits of compact,good appearance,

      lownoise,low consumption.

12. Use high efficient radiator, small size, Adopting complex wind channel technic improve the heat

      transfer.

13. Good computer supervisory control,simple operation and a high degree of automation, and has

      remote controlled system realized.

Specification:

1. Output power:100Wrms-500Wrms.

2. Adjustment range of output power: 10dB, step-by-step: 0.1dB.

3. Operating Frequency:any channel in UHF.

4. Band width:6MHz/7MHz /8MHz.

5. Frequency stability: 1×10-9.

6. Step-by-step of frequency adjustment: 1Hz.

7. Computer interface: RS232,RS485, RJ45 and support SNMP.

8. Linearity and nonlinear digital beforehand correction. calibration point:61  

    Pixel pitch:1/60

    Spectral bandwidth  amplitude correction:±10dB

    Amplitude resolution: 0.01dB

    Group delay pre-correction: ±2000ns

    Group delay resolution ratio: 1ns

    Peak power clip electrical level:+17dB ~ +7dB

    Support SFN synchronization The system clock synchronization with 10MHz benchmark in 

    External clock work If don’t input external clock, the internal clock can work.

9. Electric Power Supply Voltage, AC380V±15% (three phase four-wire system) frequency:    

    50±2Hz.  Operation temperature 0°C~45°C  

10. RH less than 95%( no condensation)

11. Operation elevation: 3000M

digital tv transmitter 3kw