Introduction: This product adopts a new scheme design, 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, dual modulator configuration, automatic switching. This product has excellent performance indicators, designed with a large amount of power redundancy, and uses a high power FET (LDMOS) suitable for digital TV signal amplification for power amplifier components. The one-time synthetic power synthesizer developed by the company has the characteristics of small loss and small standing wave. The preamplifier ALC circuit ensures the stability of the output signal. This product has over-current, over-temperature, over-power and other protection properties. The main control touch screen displays the working status of the whole machine and the power amplifier components in real time. This product is mounted in a 19-inch high cabinet and is compact. Suitable for TV station digital TV broadcasting. Features: 1. All solid state digital TV transmitter, 6-8MHZ bandwidth 2. Predistortion correction, dual exciter automatic switching (optional) 3. High linear LDMOS power amplifier, modular high gain power amplifier module, parallel switch power supply, high 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 Parameters: Working channel: VHF/UHF Channel bandwidth: 8MHz Output power: 500W Output impedance: 50Ω Output interface: Φ40 Output load reflection loss: normal operation: -32dB Allow work: -20dB Power input level: 0dBm Amplifier input impedance: 50Ω Amplifier input interface: L16 Out-of-band unwanted emission: ≤-60dB In-band ripple: ±0.5dB Shoulder : better than 36dB MER: better than 30dB (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 Dimensions: 1140mm (height) × 670mm (width) × 960 (deep) Weight: 135KG
Introduction: This product adopts a new scheme design, 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, dual modulator configuration, automatic switching. This product has excellent performance indicators, designed with a large amount of power redundancy, and uses a high power FET (LDMOS) suitable for digital TV signal amplification for power amplifier components. The one-time synthetic power synthesizer developed by the company has the characteristics of small loss and small standing wave. The preamplifier ALC circuit ensures the stability of the output signal. This product has over-current, over-temperature, over-power and other protection properties. The main control touch screen displays the working status of the whole machine and the power amplifier components in real time. This product is mounted in a 19-inch high cabinet and is compact. Suitable for TV station digital TV broadcasting.
