Overview
The DMB‑24E multi-channel FTA tuner to RF broadcast transmodulator is a high-density integrated device that combines demodulation and modulation functions, specially developed for digital television headend applications. This system supports up to 24 FTA tuner inputs and converts them into 4, 8 or 16 non-adjacent RF carrier outputs with internal multiplexing capability. It also accommodates 128 MPTS/SPTS UDP/IP inputs, and provides 1 MPTS and 127 SPTS UDP/RTP outputs through the DATA port, along with 2 ASI inputs for transport stream re-multiplexing.
This advanced platform allows users to convert RF program signals into different RF standards and IP-based transport streams. With an easy-to-use web management interface, it offers convenient operation for distributing all program sources to the local RF distribution network.
Features:
Versatile Input Setups – Offers flexible options tailored to different signal sources:
Mode 1: Supports a maximum of 24 FTA tuner inputs.
Mode 2: Mixed input combining two types of tuners and HDMI, such as 8 DVB‑S/S2, 8 DVB‑T/T2 and 8 HDMI channels.
Mode 3: Single type of tuner paired with HDMI input, such as 12 DVB‑S/S2 and 8 HDMI channels.
Operation and Supervision – Equipped with a clear color LCD display on the front panel for direct configuration, channel status monitoring, firmware checking and IP address viewing without connecting to a computer. Complete control and management can also be performed through a web-based platform.
Professional Television Broadcasting Functions – Supports PCR correction and PCR interval tuning, as well as Logical Channel Number configuration.
Multi-Carrier RF Output – Can be set to 4, 8 or 16 carriers for DVB‑T, ISDB‑T, ATSC or DVB‑C, or 32 QAM carriers for DVB‑C, based on the required number of channels.
Application
Insert the IP source, modulated RF source to all TVs over existing digital RF system
Advertising, monitoring, training and educating application
Enterprise, hotel, campus, hospital, restaurant, public place etc.
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Specifications
FTA Tuners Input
DVB-S/S2/S2X Tuner
Input frequency: 950-2150Mhz
Symbol rate: 1~54MSps (DVB-S QPSK)
1~60MSps (DVB-S2/S2X QPSK)
1~60MSps (DVB-S2/S2X 8PSK)
1~58MSps (DVB-S2/S2X 16APSK)
1~55MSps (DVB-S2/S2X 32APSK)
1~34MSps (DVB-S2/S2X 64APSK)
Signal strength: -65 ~ -25dBm
Half SyQuest Baseband filler (Roll off factor):
0.35 for DVB-S
0.15 to 0.35 for DVB-S2
0.05 to 0.35 for DVB-S2X
FEC demodulation: 1/2, 2/3, 3/4, 5/6, 7/8 (DVB-S QPSK)
1/4, 1/3, 2/5, 1/2, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 (DVB-S2 QPSK)
3/5, 2/3, 3/4, 5/6, 8/9, 9/10 (DVB-S2 8PSK)
2/3, 3/4, 4/5, 5/6, 8/9, 9/10 (DVB-S2 16APSK)
3/4, 4/5, 5/6, 8/9, 9/10 (DVB-S2 32APSK)
11/15, 7/9, 4/5, 5/6 (DVB-S2X 64APSK)
Demodulation mode: QPSK, 8PSK, 16APSK, 32APSK (Only DVB-S2)
LNB polarity selection: Vol 0, 13V, 18V Selectable
LNB band selection tone: 0/22Khz Selectable
Input Impedance: 75 Ω
FEC (Code Rate): 1/2, 2/3, 3/4, 5/6, 7/8
DiSEqC: DiSEqC 2.0 compliant
ATSC Tuner
Frequency range: 50–860 MHz
Key reference specification: ATSC A/53
Input level: -34 to +40 dBmV
Constellation: 8-VSB
Bandwidth: 6Mhz
Modulation RF Output option
Modulation (4/8*RF DVB-T/ASTC/ISDB-T or 16/32 DVB-C for option)
Connector: 1 Port, F-Type, 75Ω
Output Return Loss: 14 dB
MER ≥ 40dB
RF output level: -20 ~ 0dbm, 0.1db step
Numbers of RF Channel: 4/8
Modulation Mode: DVB-C, DVB-T, ATSC, ISDB-T, DTMB option
DVB-T Modulation
Channel: DVB-T adjacent frequencies
Modulation standard: EN300744
Frequency range: 50-960Mhz,1Khz one step
Modulation standard: EN300744
Bandwidth: 6M, 7M, 8M
FFT mode: 2K, 8K
Constellation:QPSK, 16QAM, 64QAM
Guard Interval 1/4, 1/8, 1/16, 1/32
FEC 1/2, 2/3, 3/4, 5/6, 7/8
TS bit rate＜31 Mbit/s
ATSC-T Modulation
Channel: 8VSB adjacent frequencies
Constellation: 8VSB
Frequency range: 50-960Mhz, 1Khz one step
Constellation: 8VSB
TS bit rate＜19 Mbit/s
MER≥40 dB
DVB-C Modulation(16 or 32 DVB-C out option)
16* DVB-C output MODULATION
Channel: 16*DVB-C adjacent frequency RF out
Frequency range:50~960MHz,1Khz one step
Bandwidth range 192 Mhz between start frequency and end frequency,set 16 frequency within 192 Mhz bandwidth range
MER≥40 dB
symbol rate:5~7Mbaud
total output level adjustment -35~-5dBm by 0.1 dB step
DVB-C Standard J83.A (DVB-C, J83.B, J83.C)
Constellation (QAM):16,32,64,128, 256
|
Carrier |
Annex A |
Annex B |
Annex C |
|
|
Constellation (QAM) |
16,32,64,128, 256 |
64 |
256 |
64/256 |
|
Bandwidth (Mhz) |
8 |
6 |
6 |
6 |
|
Symbol Rate ( Mbaud) |
5-7 |
5.057 |
5.361 |
4.2-5.3 |
32* DVB-C output MODULATION
Channel:32*DVB-C non-adjacent frequency RF out
Frequency range:96~864MHz,1Khz one step
bandwidth range 768 Mhz,frequency points can be used flexible within bandwidth range
MER≥40 dB
symbol rate:5~7Mbaud
total output level adjustment -35~-5dBm by 0.1 dB step
DVB-C Standard J83.A (DVB-C, J83.B, J83.C)
|
Carrier |
Annex A |
Annex B |
Annex C |
|
|
Constellation (QAM) |
16,32,64,128, 256 |
64 |
256 |
64/256 |
|
Bandwidth (Mhz) |
8 |
6 |
6 |
6 |
|
Symbol Rate ( Mbaud) |
5-7 |
5.057 |
5.361 |
4.2-5.3 |
ISDB-T Modulation
Channel: ISDB-T frequency
Frequency range: 50-960Mhz, 1Khz one step
ISDB-T standard ARIB STD-B31
Constellation: DQPSK, QPSK, 16QAM, 64QAM
Guard Interval: 1/32, 1/16, 1/8, 1/4
Transmission mode: 2K, 4K, 8K
Code rate: 1/2, 3/4, 5/6, 7/8
Bandwidth: 6MHz
TS bit rate＜21 Mbit/s
MER ≥ 40 dB
DTMB Standard GB20600-2006
Constellation: 4QAM, 16QAM, 32QAM, 64QAM
Code rate: 0.4, 0.6, 0.8
Guard Interval: 420, 595, 945 IONS
Multiplexing
Maximum PID remapping 180 input per channel
PID remapping by automatically or manually
PSI/SI: SDI/PMT/TOT/PAT/BAT/CAT/TDT/NIT Insert
Accurate PCR adjusting
Max numbers: 4 or 8 mux for RF and 1 Mux for 1*MPTS
ASI I/O
DVB-ASI: 2 * ASI input and 2*ASI output, one for backup, 75Ω, BNC, 188Bytes
MPEG-2: TS over DVB-ASI (EN 50083-9)
ASI Selectable out: mirror of one MPTS
IP I/O Stream Output
IP I/O
RJ45 port: 100/1000M GbE Port,1*DATA port used for input and output
IP output: 1*MPTS & 127*SPTS UDP/RTP IP Output (4*RF out)
8*MPTS&512*SPTS when 8*RF out
IP input: 128*MPTS/SPTS UDP/IP
TS over UDP, unicast, and multicast streaming TS over IP
System
Configuration Interface: web-based
Remote upgrade: via network
Connector: RJ45, 10/100M Ethernet interface
