DAR-3000A
Digital TV Exciter for Distributed Frequency Network
The Distributed Network (DTxN) based on ATSC standards (A/53,A/153) can be designed by deploying this DTV exciter, which maintains the frequency synchronization among other repeaters, but transmits the DTV signals with a different frequency from the main transmitter.
Function
Signal synchronization
- Tx frequency synchronization between repeaters only with the signals received from main transmitter without GPS
- Adjustment of TxID insertion and output time
- Different Tx/Rx channel frequencies: No limitation of output
Signal Measurement
- Measurement of transmission signal quality: SNR, EVM, IMD, etc.
Signal processing and calibration
- Interference Cancellation System (ICS)
- Adaptive pre-corrector: Compensation of linear and nonlinear pre-distortion
- Demodulator Integrated
User Friendly
- Save logs for alarms and faults
Specs
| Performance | |
| SNR | ≥ 30dB |
| Frequency Response | < ±0.5dB |
| Group Delay | <±25ns |
| Amplitude Error | < 1dB |
| 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 Frequency Range | UHF 14 ~ 69 |
| RF Output Frequency Range | UHF 14 ~ 69 |
| RF Input Level | > -80dBm (BNC) |
| RF Output Level | -20~+5dBm(BNC) |
| RF Feedback Level | -15 ~ +5dBm |
| Dimensions(mm) | 480(W) x 44(H) x 600(D) |
| Permissible relative air humidity | 85% |
| Temperature | -10 ~ +45℃(Operating) |
| Power Supply Voltage | 100 ~ 220 AC |
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