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Multitastic Series

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Description

MultiTastic is an innovative multi-channel transmitter which introduces the “Cast-sharing” concept.

In today’s broadcast ecosystem and scenario, main broadcasters, network operators or even municipalities operate not only one but several DTV channels. But when it comes to investment in network infrastructure (CAPEX) or future operation of such network (OPEX), the bill can become quite expensive, and the investment almost impossible to overcome when high DTV penetration is required.

In a single 4U 19” Rack, MultiTastic combines up to 7+1 (or 6+2) transmitter modules (DVB-T/H/T2, ISDB-Tb, ATSC, DAB/DAB+/T-DMB), each of them equipped with various input interfaces (Satellite Receiver, ASI, ETI, EDI, Gigabit Ethernet or RF).

A clever system of internal matrix has been implemented, so a spare transmitter module automatically takes the lead in case one fails, ensuring a full redundancy management to the system.

RF amplification system can be independent per each transmitter or also common, with redundant final amplifier (Multitastic C2) in case of adjacent channels.

Embedded Satellite multi-switch, dual redundant hot swappable GPS / GLONASS receivers and power supplies secure the system operation in any situation.

A single 4U 19” rack MultiTastic transmitter can operate up to 7 channels in one compact box… Here is Cast-Sharing!

Main features:

  • Compact 4U 19” Rack chassis
  • Up to 7+1 transmitter modules
  • Output power: 15W per module or 100W total (Multitastic C2 – adjacent channels)
  • Common amplification version (for adjacent channels) does not require external combiner
  • Redundant and hot-pluggable RF amplifier in C2 versions
  • DVB-T/H/T2, ISDB-T/Tb, DAB/DAB+/T-DMB, ATSC modulations fully supported
  • Embedded ASI and RF Matrix for redundancy management of each transmitter module
  • Embedded Re-Multiplexer/Layer Combiner/TS to BTS (188 to 204 byte) converter for ISDB-Tb
  • Adaptive pre-correction circuits
  • 2 x hot swappable high stability GPS / GLONASS receivers with battery
  • 2 x hot swappable power supplies
  • SNMP, Web Interface and Touch Screen display
  • Several input interfaces for each transmitter module:

– 1 x ASI input (TS, BTS, T2MI, SMPTE-310M, ETI)
– 1 x GbE port (TS over IP or EDI)
– Optional: 1 x DVB-S/S2 Satellite Receiver input (including CAM interface and multi-stream capabilities)
– Optional: 1 x RF receiver input for repeater/gap-filler configuration

Specifications:

 Configuration
Number of TX slots: 8 hot-swappable
Protection: N+1, N+2, N+1+M+1
Transmitters
Output power: 15 W rms per channel (up to 7 channels) @ MER > 36 dB (C1 version)
100 W rms total in common amplification mode (C2 version)
Frequency agility: UHF Band IV and V or VHF Band III
Frequency resolution: 1 Hz
Pre-correction: Adaptive
RF connector: N (f), 50 Ohm
Modulator
DVB-T/-H/-T2
Standard: EN300744, EN302304, EN302755 V1.3.1 (DVB-T2-Lite), TS101191, TS102773 (T2-MI), TS102034
Inputs: ASI BNC (f), 75 Ohm and RJ45 TS oIP 10/100/1000.
Hierarchical and not hierarchical (DVB-T, using TS oIP input)
FFT: 1K (DVB-T2), 2K, 4K, 8K, 8K ext. (DVB-T2), 16K & 16K ext. (DVB-T2), 32K & 32K ext. (DVB-T2)
Code rate: All modes available according to the standard
Block Short or Normal (DVB-T2)
DVB-T: Reed-Solomon (204, 188)
DVB-T2: BCH, LDPC
Guard interval: 1/32, 1/16, 1/8, 1/4, 19/256 (DVB-T2), 19/128 (DVB-T2), 1/128 (DVB-T2)
Constellation: QPSK, 16QAM, 64QAM, 256QAM (DVB-T2). Rotated and non rotated (DVB-T2)
MISO Processing: Supported
ISDB-Tb
Standard: ABNT NBR 15601, ABNT NBR 15603
Inputs: ASI TS/BTS BNC (f), 75 Ohm and RJ45 TS/BTS oIP 10/100/1000.
FFT: Mode 1 (2K), Mode 2 (4K), Mode 3 (8K)
Code rate: 1/2, 2/3, 3/4, 5/6, 7/8
Guard interval: 1/4, 1/8, 1/16, 1/32
Hierarchical modulation: Up to 3 layers
Constellation: QPSK, 16QAM, 64QAM
Time Interleaver: Fully supported
Partial reception: Supported
DAB/DAB+/T-DMB
Standard: EN 300401, ETS 300 799
Inputs: ETI (NI[G703], NA5376[G704] or NA5592[G704]) BNC (f), 75 Ohm
EDI (ETSI TS 102 693) RJ45 10/100/1000
Transmission modes: Mode I, II, III, IV (Automatically detected from the ETI stream, or user selectable)
Operation: MFN or SFN operations
ATSC
Standard: A/53, A/110
Inputs: ASI / SMPTE-310M BNC (f), 75 Ohm and RJ45 TS oIP 10/100/1000
Modulation: 8-VSB
Input bit rate: 19.39 Mbit/s
Bandwidth: 6 MHz
Max processing delay: Up to 1 second (programmable)
Analogue:
Standard: B, G, D, K, M, N, I
Inputs: Video BNC (f), 75 Ohm, audio Tini-QG “Mini XLR”, 6 Pin (m), 600 Ohm
Colour system: PAL, NTSC
Satellite Receiver
Standard: ETSI EN 300 421 (QPSK) (DVB-S)
ETSI EN 302 307 (QPSK, 8PSK, 16APSK) (DVB-S2)
ETSI EN 50083-9 (ASI)
ETSI EN 50221 (Common Interface)
DVB-S2: VCM, CCM, Multi Stream and Single Stream, Normal & Short FEC frames
Symbol rate: 1 – 45 Msymb/s (DVB-S)
2 – 45 Msymb/s (DVB-S2)
Constellation: QPSK, 8PSK, 16APSK
FEC: Automatic, all modalities available according to the standard.
Block Short or Normal
DVB-S: Reed-Solomon (204,188)
DVB-S2: BCH, LDPC
Roll-off: 0.2, 0.25, 0.35
Input connector: F (f), 75 Ohm
Frequency: L–band 930÷2250 MHz
LNB control voltage: Off, +13/18 Vdc, 22 kHz, 0.25 A (overload protection)
RF input level: 40 ÷ 100 db/μV (with attenuator)
Output connector: BNC (f), 75 Ohm
Modality: 188 bytes
Max input rate: 80 Mbps (CAM limit: 72 Mbps)
CAM interface: PCMCIA DVB-CI Common Interface
CA mode (Conditional Access): Multicrypt, Simulcrypt
CAS Support: Mediaguard, Viaccess, Irdeto, Conax, BISS with Professional multiprogram CAM (descrambling of up to 24 Elementary Streams) Betacrypt, Cryptoworks, Nagravision with standard consumer CAM (descrambling of up to 4 services)
Repeater/Gap Filler
RF Input
Signal type: One DTV channel (DVB-T/H/T2, ISDB-T/Tb, ATSC)
Frequency range: 170 ÷ 862 MHz (continuous tuning)
Sensitivity: -75 ÷ -15 dBm
Selectivity: > 60 dB ± 4.2 MHz
NF (Pi = -50 dBm): < 6 dB
Conversion type: Direct Base Band Conversion (Zero IF)
Return losses: > 15 dB
Connector: N (f), 50 Ohm
Echo Canceller
Cancellation level: 40 dB, typical
Cancellation window: 20 μs
Selective cancellation window: 1.6 μs (time shift from 2 to 820 μs)
Doppler cancellation: Yes
Maximum echo/signal ratio: +15 dB (over the main signal), typical
Total delay: < 10 μs
GPS / GLONASS
Input connector: N (f), 50 Ohm
Input/Monitor output 10 MHz: BNC (f), 75 Ohm
Input/Monitor output 1 PPS: BNC (f), 75 Ohm
Phase noise: -140 dBc/Hz @ 10 kHz
-150 dBc/Hz @ 100 kHz
Stability: 1e-12 / 24 H with disciplined OCXO
Hold-over stability: 5 μs after 5 hours (optional 1 μs after 24 hours)
Mechanical
Chassis: 4U rack 19”
Width: 482 mm
Height: 177 mm
Depth: 420 mm without fans
Weight: 25 Kg
Environmental:
Operating temperature range: -5°C ÷ 40°C
Max. relative humidity: 90%, non condensing
Max. operating altitude: 2500 m. a.s.l. (>2500 m. optional)