DekTec DTA-112 QAM A/B/C Modulator with VHF/UHF Upconverter
- Supports J.83 Annex A (DVB-C), B and C
- QAM-16, QAM-32, QAM-64, QAM-128, QAM-256
- All-channel upconverter 47 .. 862MHz covering full VHF and UHF band
- Output amplifier with programmable 0 .. 31.5dB attenuator in 0.5dB steps
- Can be used with DTA-Plus to extend output-level range
Overview
- OFDM Modulator with UHF Upconverter
- Supports: DVB-T, DVB-H, QAM-A/B/C
- ISDB-T, DTMB Modulation Options
Features
- Supports J.83 Annex A (DVB-C), B and C
- QAM-16, QAM-32, QAM-64, QAM-128, QAM-256
- All-channel upconverter 47 .. 862MHz covering full VHF and UHF band
- Output amplifier with programmable 0 .. 31.5dB attenuator in 0.5dB steps
- Can be used with DTA-Plus to extend output-level range
- Monitor output for direct connection to the antenna input of a digital receiver
- Bi-directional DVB-ASI port
- Programming interface (DTAPI) is fully compatible with other DekTec digital-video output adapters
- PCI rev 2.2, 32 bit, 33 or 66 MHz bus
Specifications
Parameter | Value | |
Modulation | J.83 Annex A/B/C | |
| Frequency Range | 47...862MHz ± 1 ppm | |
| Bandwidth | 5.0...8.0MHz | |
| MER | ≈40 dB | |
Main Output | Connector | 75-Ω BNC |
| Return Loss | ≥15dB (47...862MHz) | |
| Level | -31.5...0dBm ± 2dB | |
| Phase Noise | <-90dBc @ 10kHz | |
| Spectral Purity | >50dB (47...862MHz) | |
| Monitor Ouput | Connector | 75-Ω F |
| Return Loss | ≥15dB (47...862 MHz) | |
| Level | -27.5dBm ± 3dB | |
| DVB-ASI | Connector | 75-Ω BNC |
| Return Loss | ≥15dB (5...270MHz) | |
