Introduction: This product is an all-solid-state single-channel TV transmitter developed by the company. It adopts an imported modulator and has an adjustable image and sound power ratio. The power amplifier adopts imported LDMOS high-power FET, and the modulus is compatible. The work is stable and reliable. The whole machine has over-current, over-voltage, over-temperature, over-power, over-standing wave ratio protection. The large LCD screen displays the working parameters in real time. The whole machine is installed in a 19-inch cabinet, which is suitable for small and medium-sized TV stations. Features: 1. The whole machine is single channel, and the image is connected with sound. 2. This machine realizes the intelligent network management and monitoring, and has an external PC interface. It is equipped with technical data detection, monitoring system and fully functional computer control software with self-diagnosis function. Various technical parameters can be read through the LCD panel of the panel. 3. Perfect protection measures to reduce equipment damage This machine is equipped with no video protection, excessive standing wave ratio, overheating, over-excitation, phase loss protection and lightning protection measures. The switching power supply is provided with protection measures such as overvoltage, overcurrent, undervoltage, overtemperature, short circuit, and lightning protection. 4. All power sources are switching power supplies; high efficiency, good voltage regulation range, and strong adaptability to external power changes. 5. Adopt modular design concept. 6. Building block structure for long-term maintenance and upgrade. 7. Built-in fan design makes the transmitter compact and beautiful. Technical Parameters: Machine 1. Operating frequency band: VHF/UHF 2. Output power: 500W (synchronous top) 3. Output impedance: 50Ω 4. Intermodulation distortion: ≤-50dB 5. Unwanted transmission: ≤-40dB in adjacent channels ≤-60dB outside the adjacent channel 6. RF output interface: L27/L29 7. Power: Single phase 220V 8. Dimensions: 1135mm (height) × 675mm (width) × 950mm (deep) 9. Weight: 136KG Image: 1. Video input level: 1VP-P positive polarity 2. Video input impedance: 75Ω 3. DG: ±8% 4. DP: ±7° 5. Brightness nonlinearity: ≤12% audio 1. Audio input level: 0dBm±6dB 2. Audio input impedance: 10KΩ (unbalanced) 3. Maximum frequency offset: ±50KHz 4. Harmonic distortion: ≤1% 5. 0 noise ratio: ≥60dB
Introduction: This product is an all-solid-state single-channel TV transmitter developed by the company. It adopts an imported modulator and has an adjustable image and sound power ratio. The power amplifier adopts imported LDMOS high-power FET, and the modulus is compatible. The work is stable and reliable. The whole machine has over-current, over-voltage, over-temperature, over-power, over-standing wave ratio protection. The large LCD screen displays the working parameters in real time. The whole machine is installed in a 19-inch cabinet, which is suitable for small and medium-sized TV stations.
