DAR-2000S
Digital TV On Channel Repeater(DOCR)
The DAR-2000S is a Digital On-Channel Repeater (DOCR) system based on the ATSC standard that operates on the same frequency for receiving and transmitting channels without additional frequency allocation.
The DAR-2000S’s Adaptive Corrector function automatically compensates for linear and nonlinear distortion to maintain optimal signal quality.
DAR-2000S receives feedback on the transmission signal and measures and displays the quality of the transmission signal.
Function
Signal Measurement
- Measurement of transmission signal quality: SNR, EVM, IMD, etc.
Signal processing and calibration
- Adaptive pre-corrector: Compensation of linear and nonlinear pre-distortion
- Interference Cancellation System (ICS) function: Resolves the problem of restricted installation of Tx/Rx antenna
- Integrated exciter with demodulator
Remote Control
- Wireless remote control: Ethernet, CDMA
Short system delay time
- Secures reception stability in the same channel network
Specs
| Performance | |
| SNR | ≥ 33dB |
| Frequency Response | < ±0.5dB |
| Group Delay | < ±25ns |
| Amplitude Error | < ±0.5dB |
| Phase Error | < ±5deg |
| Peak to Average | 6.4dB@0.1% |
| Carrier Stability | < ±0.5ppm |
| Frequency Tolerance | < ±1.0ppm@Selected Channel |
| Phase Noise | -107dBc/Hz@20KHz offset |
| Sideband Performance | FCC Mask Compatible |
| General | |
| RF Input Level | > -82dBm |
| RF Output Level | 100W |
| Dimensions | 19” Standard Rack Type (2m) |
| Permissible Relative Air Humidity | 85% |
| Operating Temperature | -10 ~ +45℃ |
| Power Supply Voltage | 100 ~ 220 AC |
| Characteristics | |
| In/Out Frequency Difference | 0Hz |
| Feedback Cancellation | < +28dB |
| Processing Delay | < 0.8µs |
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