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ISDB-T Modulator, Model:Bossa-GAF
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Main Feature
 Fully Compliant with ISDB-T and ISDB-TB Standard High MER, RF Stability, Shoulder Level and Low Phase Noise
Support 1k , 2k, 4k FFT Modes
Guard Interval: 1/4, 1/8, 1/16, 1/32
FEC: 1/2, 2/3, 3/4, 5/6, 7/8
Constellation: DQPSK, QPSK, 16QAM, 64QAM
MFN and SFN Network Operation (IIP Packets)
RF Agile from 50MHz to 860MHz with step 1Hz
Option IF Agile from 34MHz to 70MHz with step 1Hz
Powerful Linear and Non-linear Precorrection
Support Crest Factor Adjustment
External 1pps and 10MHz Clock Inputs
Optional Pre- Amplifier
Optional Onboard GPS
RS232 Control and Supervision or IP Web Browser in Option |
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TS Input:
Complaint with ARIB STB-B31 and TR-B14 standard
2 x ASI inputs
Support 188/204 packet, Packet mode and Burst mode
Input Transport Stream Packet de-multiplexer
IIP packet management for SFN operating
TS Redundancy:Manuel/Auto,Seamless in SFN
Connector type: BNC female, Impedance 75Ohm
Modulation and channel coding:
FFT: 1k ,2k, 4k
FEC: 1/2, 2/3, 3/4, 5/6, 7/8
Guard Interval: 1/4, 1/8, 1/16 or 1/32
Constellation: DQPSK, QPSK, 16QAM, 64QAM
Time interleave: 0 to 16
Channel Bandwidth: 6MHz
IF Output Option:
Central frequency: 34MHz to 70MHz, Step 1Hz
Signal level(Main): 0dBm +/- 2dB with 0dB to -10dB attenuation adjustable by 0.1dB step
Signal stability: +/- 0.5dB，+/-1kHz
Modulation error ratio(MER): >42dB
Shoulder: >55dB
Spurious: 50dB relative to total power
MFN and SFN network operation (IIP packets)
Connector type: N female, Impedance 50 Ohm
Linear Pre-correction:
Number of Pre correction points: 32
Amplitude pre correction: +/-3dB
Phase pre correction: +/-1us
Adjustable Crest Factor :
The range of Crest Factor: 8-20dB
The crest factor optimization: 1-255
ISDB-T/TB Network:
SFN: Time offset setting
MFN: BR adaptation, Static delay setting |
RF Output:
Central frequency: 50MHz to 860MHz
Signal level(Main): 0dBm +/- 2dB with 0dB to -10dB attenuation adjustable by 0.1dB step
Signal stability: +/- 0.5dB，+/-10kHz
Modulation error ratio(MER): >40dB
Shoulder: >50dB
Spurious: 50dB relative to total power
Connector type: N female, Impedance 50 Ohm
RF Pre-Amplifier Option:
Ultra linear amplifier for VHF, UHF Bands
Gain:15dB, Gain Flatness<1dB, Gain Stability<0.1dB
Test Signal Modes:
PRBS TS Sequence
Sinus tone insertion
Null Symbol Insertion
Central Carrier Cancelled
Clock Reference:
Internal 10MHz
Stability: <+/-5x10-9(typ), Output level: 0dBm +/- 3dB
External 10MHz
Input level: -7dBm to +2dBm
Input connector type: BNC female, 50 Ohm
External 1pps reference
Input level: TTL level 5 KOhms; Pulse width: 1us
Input connector type: BNC female
Optional onboard GPS
Control and Alarm:
Local control: 6 buttons, LCD screen, LED
Remote control: RS232 or WEB browser through IP Ethernet RJ-45 in option
Physical:
Power supply: AC 110V+/-15% or 220V+/-10%, 80W
Operating temperature: 0 to 50 degrees
Dimension: L=540mm, W=483mm, H=44mm (1RU)
Weight: Net 7 kg, Gross 10 kg |
| Non linear Pre-correction: |
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Correction |
Nb point |
Abscissa range |
Ordinate range |
Step |
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AM/AM |
16 |
-12 dB to +12dB |
-6dB to +6dB |
0.05dB |
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AM/PM |
16 |
-12 dB to +12dB |
-25° to +25° |
0.05dB/0.2° | |
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