The QPSK modulator is designated for QPSK-modulation and input DVB stream processing by the noise protective cipher. Subsequently, the input DVB stream is converted into output L-band signal.
Modulator parameters
| Parameter |
Value |
| QPSK modulation: | corresponds to EN 300421 |
| Input stream rate: | 1 – 50Мbit/с |
| Symbol rate: | 25 – 30Мsymb/s (spacing 0,125Мsymb/s) |
| Bandwidth: | 950-1950 МHz (two subbands which depend on device's version) |
| | 950-1500 МHz |
| | 1450-1950 МHz |
| Set-on accuracy rate: | ±5кHz |
| Frequency tuning spacing: | 1 Hz |
| FEC modes | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Output resistance: | 50 Ом |
| Connector | SMA |