DVB-T H Modulator

Fanamoj FNJ-D1202 DVB-T/H modulator is completely designed base on ETSI EN301 744 standard. The output of FNJ-D1202 is delivered on a user selectable frequency in the ranges of VHF BIII and UHF with selectable bandwidths of 5, 6, 7, and 8 MHz. The unit supports further nonhierarchical and hierarchical modulation formats and it can be configured by user for MFN and SFN network operations.

The integration of numerous functions into a single unit significantly reduces the size and the cost of Fanamoj FNJ-D1202 DVB-T/H modulator. The modular design and fully support of DVB-T standard provide facilities for different applications. An embedded web server makes it possible to easily control system remotely by SNMP protocol. Local panel with a wide LCD, control buttons and several status monitoring LEDs give very useful local control. The ability to update firmware of all modules in the system allows future supports easily.

Main Features

• Modular design, flexible and user selectable options
• VHF & UHF bands support
• Adaptive pre-correction and output performance measurement (MER, Shoulder , SNR) for DVB-T/H
• High performance (high MER, low shoulder level)
• SFN, hierarchical modulation and DVB-H full support
• ASI inputs and 10MHz seamless switching
• Remotely controllable via web and SNMP agent
• Firmware upgradeable (FPGA, local and main processors firmware)
• Compact, one rack-unit size

Specifications

INPUTS

data input

• Number of inputs: 4 ASI (HP1, HP2 and LP1, LP2) with automatic and manual switching
• Connector: BNC 75Ω
• Byte and Burst Mode
• Manual and Automatic 188/204 Packet Length detection
• PRBS Mode support
• Bitrate Adaptation and PCR Update(MFN Mode)

REFERENCES

Internal 10MHz ref:

• Stability: 1 ppm(0.1ppm option)
• Aging: 10-6 / year(10-7 / year option)

External 10MHz ref:

• Connector: BNC 50Ω
• Amplitude: 500mVpp - 5Vpp
• Impedance: 50Ω
• Automatic and manual Switch between Internal and External Reference.

1PPS

• Connector: BNC
• Input level: TTL

Input monitoring

• External 10MHz present
• 1PPS present
• MIP present and MIP Interpretation(SFN Mode)
• ASI Input Sync(capability of output Mute on ASI input sync Fail)

RF Feedback input (ADC Option):

• Connector: BNC 50 Ω
• Input level: -10 ~ 0 dBm

Receiver input (DVBT Diversity Receiver Option for Re transmitter):

• Connector: BNC 50 Ω
• Input level: -90 ~ -20 dBm

GSM/GPRS Modem input (Option):

• Connector: BNC 50 Ω

GPS inputs (Option):

• Connector: F type 50 Ω

Outputs

RF Main:

• Connector: SMA 50Ω (BNC on request)
• Frequency: 470-862 MHz. 1Hz steps
• Level: -10 - 0dBm. 0.2dB Steps
• Harmonics and spurious: -60dBm(@ 0dBm output level)

RF Monitor:

• Connector: BNC 50Ω
• frequency: Same as RF Main
• Level: -20dB Relative to RF Main

OUTPUT Spec:

• MER: > 39 dB
• SHOULDER: >48 dB
• In band Flatness : < ±0,5dB
• Spectrum polarity: Inverted and non-inverted.
• Group Delay: < 10 ns
• SBB Phase noise (dBc/Hz): 1KHz : 90
  10kHz : 95
  20KHz : 100
  100KHz : 113
  1MHz : 130
• Frequency Stability: 10-7 / year

10MHz OUT:

• Connector: BNC
• level: 3.3V TTL

SIGNAL PROCESSING

Supported modes

• IFFT: 2K, 4K, 8K
• Interleaver: Native, In-depth
• Guard interval: 1/4, 1/8, 1/16, 1/32
• Code rates: 1/2, 2/3, 3/4, 5/6, 7/8 (For Both LP & HP Stream)
• Constellations: QPSK, 16-QAM, 64-QAM
• Network mode: MFN/SFN
• Hierarchical mode supported.
• Hierarchical Mapping: a=1, a=2 and a=4
• Input bit rates: MAX 31.67 Mbps
• BER After RS: 0.
• Bandwidth: 8 MHz, 7 MHz, 6 MHz, 5MHz.
• Local delay (SFN): up to 1sec, 100ns Steps
• DVBH Support

PRE-CORRECTION

• Very high performance Adaptive Linear and Non-linear pre correction(ADC option)
• Manual Linear and Non-linear pre correction

Control System

Alarm:

• Alarm logging and managing.
• 2 Alarm relays .( 9 pin D type connector)

Local Interface:

• LCD and Keyboard

Remote Interface:

• Connector: RJ45
• SNMP ver2 Agent
• Web Interface

Power supply

• Voltage: 90 - 260 VAC
• Frequency: 47-63 Hz
• Power Consumption: 50W

Environmental Specification

• Operating Temperature range: -10°C to +50°C
• Storage Temperature range: -20°C to +70°C
• Humidity operating: max 95% non condensing

Mechanical Specification

• Cabinet: 19” wide, 1RU high
• Width: 483mm (19”)
• Height: 44mm (1.75”)
• Depth: 500mm
• Weight: 7kg
• Cooling: 2 Long Life Fans.

OPTIONS

• ADC Board:
  1- Adaptive Pre-corrector.
  2- Output signal monitoring: MER, Shoulder, Constellation,
• GSM/ GPRS Modem:
  Monitoring system via Mobile Network.
• Dial-up Modem:
• DVBT Diversity Receiver:
  Re-transmitter system (Gap Filler)
• GPS Receiver:
  For SFN Network.

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