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Upcom Technologies' UC-250 ISDB-T is a broadcast level digital modulator
compatible with ISDB-T and ISDB-TB standards. It is designed to meet
digital terrestrial TV broadcasting applications , from ASI Transport
Stream inputs to UHF or VHF modulated signal outputs.
- 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
- RF AGILE FROM 50MHz TO 860MHz WITH STEP 1Hz
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TS Input:
Modulation and channel coding:
IF Output Option:
Linear Pre-correction:
Adjustable Crest Factor: |
Fully compliant 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 mode
Connector type: BNC female, Impedance 75Ohm
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
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
Number of Pre correction points: 32
Amplitude pre correction: +/-3dB
Phase pre correction: +/-1us Number of Pre correction points: 32
Amplitude pre correction: +/-3dB
Phase pre correction: +/-1us
The range of Crest Factor: 8-20dB
The crest factor optimization: 1-255 |
RF Output:
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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
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RF Pre-Amplifier Option:
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Ultra linear amplifier for VHF, UHF Bands
Gain 15 Gain Flatness <1dB
Gain Stability <0.1dB
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ISDB-T/TB Network:
Clock Reference:
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SFN: Time offset setting
MFN: BR adaptation, Static delay setting
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 |
Power Supply: |
AC 110V+/-15% or 220V+/-10%, 80W |
Non Linear Pre-correction: |
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Operating temperature: |
0 to 50 degrees |
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Dimensions: |
L=540mm,
W=483mm, H=44mm (1RU) |
Weight: |
Net 7 kg, Gross 10kg |
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