ZHC518D-1KW DVB-T Transmitter

1KW DVB-T Transmitter VHF/UHF

Professional performance

Module design

MCU controlled

RS485/232 interface

8-inch color LCD with touch panel

High reliability

Low price.

This product has excellent performance indicators, the designed power redundancy is large, and uses high-power field effect transistors (LDMOS) suitable for digital TV signal amplification as power amplifier components. The power supply and power amplifier components are all hot-swappable devices. The one-time combined power combiner developed by our company has the characteristics of low loss and low standing wave, and is especially suitable for use in all solid-state digital TV transmitters. This product has unique and complete multiple detection and protection functions. The power amplifier component has real-time display of amplifier working parameters and protection functions such as overcurrent, overtemperature, and overpower.

Features:
●All solid-state digital TV transmitter, bandwidth is 30MHZ.
●Pre-distortion correction, dual-exciters switch automatically.
●High Linearity LDMOS Power Amplifier, high-gain power amplifier module, parallel switching power supply, it is a high-efficiency transmitter.
●Telemetry and remote control by computer, web-based interface and software.
●Good man-machine interface, full automatic switch the machine with one key.
●Multi protection (over voltage, over current, overheating, large standing-wave ratio ...)high reliability, 24 hours continuous works.

Technical Specifications:
1. Working frequency：         VHF/UHF
2. Channel bandwidth：         30MHz
3. Output power：                  1KW
4. Output impedance：           50Ω
5. Output interface：             Φ40 (1-5/8”)
6. Output load return loss:     Normal operation: -32dB
                                          Allowed operation: -20dB
7. Power input level：            0dBm
8. Amplifier input impedance：50Ω
9. Amplifier input interface： N
10.Useless transmission:         ≤-60dB
11.Band fluctuations:             ±0.5dB
12.Band shoulder:                  better than 36dB
13.MER：                              better than 30dB
14.Size：                              1840mm×1280mm×680mm
15.Weight：                          350KG