IT-087 DVB-C Signal Analyzer
The IT-087 DVB-C Signal Analyzer is a configuration of the IT-08 Multifunction TV Meter comprised of MB-08 Base Unit and MC-087 Removable Module. IT-087 is designed to ensure high-performance testing and adjustment of television and broadcasting distribution networks as well as of separate components of such networks, or other electronic devices. The Analyzer allows measurement of DVB-C signal parameters and analog signals. IT-087 is capable to satisfy all your measurement needs for high-quality operation within the range of 45 to 865 MHz.
IT-087 KEY FEATURES: - lightweight and compact handheld design
- measurement modes:
- BER/MER mode performs measurements of DVB-C channels and shows the results on a bar-graph or a constellation diagram
- SPECTRUM mode provides scanning of the entire band with the span defined by the user from 18 to 72 MHz
- SCAN, TILT and RIPPLE modes show the level of all the channels present in the band (or channels according to the channel plan) on a bar-graph
- LEVEL measurements:
- for analog channels: channel level, Carrier to Noise (C/N) ratio, Video to Audio (V/A) ratio
- for digital channels: channel power, Carrier to Noise (C/N) ratio.
- measurement of reception quality parameters of digital channels:
- modulation error rate (MER)
- bit error rate (BER) before and after Reed-Solomon decoder
- channel carrier frequency offset from the tuning frequency
- data logger storing:
- up to 32 channel plans (with channel names) and automatic channel plan creation. Automatic search for digital channel modulation parameters
- up to 130 measurement logs (each showing channel levels, C/N and V/A ratios), checking the parameter against the limit plan and saving measurement date and time. For digital channels channel power, C/N ratio, BER, and MER are measured
- up to 130 spectrum analyzer logs with 125 kHz step, adjustable scanning span and saving measurement date and time.
- analog channels audio reproduction with built-in speaker
- measurement of AC/DC input voltage within the range of 10 to 100 V
- operation with PC (additional modes available)
SPECIFICATIONS
| Frequency tuning range
| 5 to 900 MHz
| Operating frequency range
| 45 to 865 MHz
| Frequency resolution
| 125 kHz
| | Built-in attenuator | 20, 40 dB | Return loss
- Input attenuator off
- Input attenuator on
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| Level measurement range
- input attenuator off
- Input attenuator 20 dB on
- Input attenuator 40 dB on
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- 30 to 80 dBμV
- 50 to 100 dBμV
- 70 to 120 dBμV
| Measurement level resolution
| 0.1 dB
| Accuracy within 30-120 dBµV level range
| ±1.5 dB | Accuracy within operating temperature range
| ±2.2 dB | Measurement channel passband for -3 dB level
| 230 ± 60 kHz
| Input signal modulation
| QAM 64, 128, 256
| Symbol rate
| 5 to 7 MSps
| MER measurement range
| 18 to 40 dB
| MER measurement resolution
| 0.1 dB
| MER measurement accuracy
| ±2.0 dB
| BER measurement range
- BER before Reed-Solomon decoder
- BER after Reed-Solomon decoder
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- 4.0x10-3 to 1.0x10-8
- 1.0x10-4 to 1.0x10-8
| DVB-C channel actual power threshold (preBER < 2.0x10-4)
| 50 dBμV
| Frequency auto tuning range
| ±0.5 MHz
| | Warm-up time | 10 min
| | Battery life under normal conditions (2100 mAh battery capacity) | 4 hours |
SAMPLE SCREENSHOTS
| Main menu
| LEVEL measurement mode
| SPECTRUM measurement mode
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| SCAN measurement mode
| TITL measurement mode
| RIPPLE measurement mode
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| Constellation diagram
| MER/BER measurement mode
| List of channel plans
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PC SOFTWARE ViewIt08C ALLOWS: - performing all kinds of measurements
- viewing and saving data logs
- editing channel plans
- saving and documenting measurement results
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