Introduction: This product adopts a new scheme design, a combination of building blocks, and can be equipped with domestic or imported digital modulators that comply with DTMB national standard modulator, China Mobile Multimedia Broadcasting Television (CMMB) modulator, DVB-T European standard and other standards. Single and dual modulator configuration, automatic switching. This product has excellent performance indicators, the design of power redundancy is taught, and a high-power FET (LDMOS) suitable for digital TV signal amplification is used as a power amplifier. The power supply and power amplifier components are all hot swap devices. The one-time synthetic power synthesizer developed by the company has the characteristics of small loss and small standing wave, and is especially suitable for use in all-solid-state digital television transmitters. The transmitter's preamplifier ALC circuit ensures the stability of the output signal. This product has a unique and complete variety of detection and protection functions. The power amplifier components have real-time display of amplifier operating parameters and protection functions such as overcurrent, overtemperature and overpower. The main control touch screen displays the working status of the whole machine and the power amplifier components in real time. This product is installed in a 24in cabinet, suitable for TV broadcasts of TV stations at all levels. Features: 1. All solid state digital TV transmitter, 6-8MHZ bandwidth 2. Pre-distortion correction, dual exciter automatic switching (optional) 3. High linear LDMOS power amplifier, hot swap high gain power amplifier module, hot swapping parallel switch regulated power supply, high machine efficiency 4. Computer remote telemetry remote control, networked interface and software 5. Good man-machine interface, one-button automatic switch machine 6. Multiple protection (overvoltage, overcurrent, overheat, large standing wave ratio...) High reliability, continuous operation for 24 hours Technical indicators: 1. Working channel: VHF/UHF channel Optional 2. Channel bandwidth: 8MHz 3. Output power: 2KW 4. Output impedance: 50Ω 5. Output interface: Φ40 6. Output load reflection loss: normal operation: -32dB Allow work: -20dB 7. Power input level: 0dBm 8. Amplifier input impedance: 50Ω 9. Amplifier input interface: L16 10. Unwanted emission outside the band: ≤-60dB 11. In-band fluctuation: ±0.5dB 12. Shoulder: better than 36dB 13.MER: better than 30dB 14. (Optional) Digital TV Standard: 1. National Terrestrial Digital Television Standard (DTMB): GB20600-2006 2. China Mobile Multimedia Broadcasting and Television (CMMB): GY/T220.1-2006 3. Terrestrial digital TV standard European standard: (DVB-TC(H)): ETS1300744 15. Dimensions: 1840mm (height) × 870mm (width) × 1160 (deep) 16. Weight: 550KG
Introduction: This product adopts a new scheme design, a combination of building blocks, and can be equipped with domestic or imported digital modulators that comply with DTMB national standard modulator, China Mobile Multimedia Broadcasting Television (CMMB) modulator, DVB-T European standard and other standards. Single and dual modulator configuration, automatic switching. This product has excellent performance indicators, the design of power redundancy is taught, and a high-power FET (LDMOS) suitable for digital TV signal amplification is used as a power amplifier. The power supply and power amplifier components are all hot swap devices. The one-time synthetic power synthesizer developed by the company has the characteristics of small loss and small standing wave, and is especially suitable for use in all-solid-state digital television transmitters. The transmitter's preamplifier ALC circuit ensures the stability of the output signal. This product has a unique and complete variety of detection and protection functions. The power amplifier components have real-time display of amplifier operating parameters and protection functions such as overcurrent, overtemperature and overpower. The main control touch screen displays the working status of the whole machine and the power amplifier components in real time. This product is installed in a 24in cabinet, suitable for TV broadcasts of TV stations at all levels.
