Operating instructions

DVB3030/DVB3030L Digital Video Broadcast Modulator Technical Specifications
TM052 - Rev. 3.5 7-1
Section 7 – Technical Specifications
7.0 Introduction
This section defines the technical performance parameters and specifications for the DVB3030
and DVB3030L Digital Video Broadcast Modulators.
7.1 IF Output Port
1. Frequency Range: 50 - 90 MHz, 100 - 180 MHz
Optional: 950 - 1525 MHz (DVB3030L)
Step Size: 100 Hz
Stability: 10 ppm
2. Output Level: +5 to -20 dBm (-5 to -30 for DVB3030L)
Step Size: 0.1 dB
Accuracy: ± 0.5 dB
Stability: ± 0.5 dB
3. Output Impedance: 75 Ohms
Option: 50 Ohms
4. Return Loss: 20 dB
5. Phase Noise: 100 Hz -63 dBc
1 KHz -73 dBc
10 KHz -83 dBc
100 KHz -93 dBc
6. Connector: BNC, Female
7. Modulation: QPSK, BPSK Optional
8. Spectral Mask: Per ETS 300-421
9. Spurious Output: -55 dBc In-Band
-45 dBc Out-of-Band
7.2 Baseband
1. Variable Data Rate:
Variable 1 to 78.75 Mbps
Step Size 1 bps
2. Symbol Rate 45 Msps max.
3. Forward Error Correction (FEC) Encoding
Inner Code: Convolutional
K = 7, (171, 133)
Rate: 1/2, 2/3, 3/4, 5/6, 6/7, 7/8
Outer Code: Reed Solomon
(204,188, T = 8)
4. Interleaving: Convolutional, I = 12
5. Data Scrambling: Per ETS 300-421