VB278 offers 4 independent inputs that allow for monitoring and analysis of the types of RF signals found in Satellite uplink and downlink architectures, with the system facilitating one RF input by default, and the other three by license activation. Modulation formats supported are DVB-S, DVB-S2, DVB-S2X and DSS. Up to two VB278 modules can be placed into a single 1RU chassis for 8 independent RF inputs. Each RF input is further capable of round-robin operation to allow for monitoring of a full satellite transponder lineup. The VB278 complements the VB120, offering key monitoring features such as TR 101 290 analysis, IP multicast monitoring, HLS/M-DASH monitoring, TS recording, RF analysis and SRT relay operations for remote live video inspection across IP. Each RF input is capable of 13/18V/22kHz and DiseqC 1.0 control and can drive an LNB directly should the need arise. A fully populated 1RU chassis with one VB120 controller module and two VB278 RF input modules run at an environmentally friendly 30 watts.

Technical specifications:
- Capable of demodulating DVB-S (ENTSI EN 300 421), DVB-S2/S2X (ETSI EN 302 307-1/-2)
- Modulation standards supported: QPSK, 8PSK, 8/16/32APSK
- DirecTV DSS and AMC modes supported
- Roll-off factor 0.05 to 0.35
- VCM, ISSY and NPD supported
- Supports DVB-S2 GOLD CODES
- Input frequency range from 950 to 2150 MHz
- Automatic symbol rate detection requires only frequency to be configured by user
- Symbol rate range between 1 to 45Msym/s (<40MSymbol/s in 32APSK)
- DiSEqC 1.0 L-band switch signaling supported
- 13V/18V/22kHz antenna signaling present
- Modulation Error Rate (MER) in dB
- Signal to Noise Rate (SNR) in dB
- Error Vector Magnitude (EVM) in% and in dB
- Constellation diagram maintained in GUI
- BER pre Viterbi (for DVB-S)
- BER post Viterbi (for DVB-S)
- BER post LDPC-BCH (for DVB-S2)
- RS Packet Error Count
- Channel power with an absolute accuracy of +/- 3 dB
- Trend RF graphs over time back 24 hours standard and extendable through license key
- Carrier frequency offset
- Symbol rate offset
- Energy per information bit to noise power spectral density ratio (Ebinf/N0) in dB
- Energy per transmitted bit to noise power spectral density ratio (Eb/N0) in dB
- Energy per symbol to noise power spectral density ratio
- (Es/N0) in dB
- Pilot detection (for DVB-S2/S2X)
- Frame length (for DVB-S2/S2X)
- Number of input streams (for DVB-S2/S2X)
- Capable of Short and Normal frames
- Adaptive/Variable Coding and Modulation (ACM/VCM)
- Capable of Multi Input Stream (MIS) with tuning selection of individual Input Stream Identifiers (ISI)
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Produkt manažér:
Yevhen Lystovshchyk

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