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Multi-channel Television Transmitters

Multitastic Series

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.

Instead of investing into several separate transmitter units, as well as complex and costly redundancy management systems, broadcasters or network operators can now simply invest into a single 4U 19” rack MultiTastic transmitter and 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
  • 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
  • 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


Number of TX slots:
8 hot-swappable
N+1, N+2, N+1+M+1


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
RF Connector:
N (f), 50 Ohm



EN300744, EN302304, EN302755 V1.3.1 (DVB-T2-Lite), TS101191, TS102773 (T2-MI), TS102034
ASI BNC (f), 75 Ohm and RJ45 TS oIP 10/100/1000.
Hierarchical and not hierarchical (DVB-T, using TS oIP input)
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)
Guard interval:
1/32, 1/16, 1/8, 1/4, 19/256 (DVB-T2), 19/128 (DVB-T2), 1/128 (DVB-T2)
QPSK, 16QAM, 64QAM, 256QAM (DVB-T2). Rotated and non rotated (DVB-T2)
MISO processing:


ABNT NBR 15601, ABNT NBR 15603
ASI TS/BTS BNC (f), 75 Ohm and RJ45 TS/BTS oIP 10/100/1000.
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
Time interleaver:
Fully supported
Partial reception:


EN 300401, ETS 300 799
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)
MFN or SFN operations


A/53, A/110
ASI / SMPTE-310M BNC (f), 75 Ohm and RJ45 TS oIP 10/100/1000
Input bit rate:
19.39 Mbit/s
6 MHz
Max processing delay:
Up to 1 second (programmable)


B, G, D, K, M, N, I
Video BNC (f), 75 Ohm, audio Tini-QG “Mini XLR”, 6 Pin (m), 600 Ohm
Color system:

Satellite Receiver

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)
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)
Automatic, all modalities available according to the standard.
Block Short or Normal
DVB-S: Reed-Solomon (204,188)
0.2, 0.25, 0.35
Input connector:
F (f), 75 Ohm
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
188 bytes
Max input bit 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)
-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
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:
Maximum echo/signal ratio:
+15 dB (over the main signal), typical
Total delay:
< 10 μs


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
1e-12 / 24 H with disciplined OCXO
Hold-over stability:
5 μs after 5 hours (optional 1 μs after 24 hours)


4U rack 19”
482 mm
177 mm
420 mm without fans
25 Kg


TFT touchscreen


Operating temperature range:
-5°C ÷ 40°C
Max. relative humidity:
90%, non condensing
Max. operating altitude:
2500 m. a.s.l. (>2500 m. optional)


Power supply:
Single Phase 100÷240 V∼ 50/60 Hz, IEC320 C14 Plug
Double redundant power supply:
Hot-swappable (optional)
Maximum consumption:
750 W with 8 slots at maximum power


To comply with the applicable standards and limit values for the suppression of out-of-band emissions (and in the case of digital standards,
also for maintaining the required shoulder distance), the transmitter may only be operated with suitable filters at the RF output.

Specifications are subject to change without notice.

Base chassis, 4RU, 8 slots, to be fitted with Multitastic plug-in transmitters for N+1 or N+2 configurations, including 1 power supply, 1 GPS / GLONASS receiver and RF output matrix.


15 W rms UHF Digital TV transmitter plug-in, 1x ASI + 1x GbE inputs, including ASI matrix
15 W rms UHF Digital TV transposer/gap-filler plug-in with echo canceller
Base chassis, 4RU, 8 slots, to be fitted with Multitastic plug-in modulators for N+1 or N+2 configurations, including 1 power supply, 1 GPS / GLONASS receiver, 1 RF wideband amplifier and RF output matrix


Digital TV modulator plug-in, 1x ASI + 1x GbE inputs, including ASI matrix
Digital TV transposer/gap-filler plug-in with echo canceller


Redundant power supply, hot-swappable unit
Opt. A
Redundant RF wideband hot-swappable amplifier and combining module (C2 versions only)
Opt. R2
Redundant GPS / GLONASS receiver plug-in board
Opt. G2
26 dB LNA GPS / GLONASS antenna including mounting kit and 25 mt. coaxial cable
Opt. KA
DVB-S/S2 integrated receiver board, single and multistream, with CAM slot
Opt. S
RF integrated receiver board for transposer/gap-filler operations
Opt. RM
DVB-S/S2 integrated input matrix for N+1 or N+2 configurations
Opt. MS
RF integrated input matrix for N+1 or N+2 configurations
Opt. MR
Software option for ISDB-Tb Remux/Layer combiner/ TS to BTS (188 to 204 byte) converter
Opt. L
Dual-cast software option, adds DVB-T modulation
Opt. T
Dual-cast software option, adds DVB-T2 modulation
Opt. T2
Dual-cast software option, adds ISDB-T modulation
Opt. I
Dual-cast software option, adds ATSC modulation
Opt. AT

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