IT-088 DVB-T Signal Analyzer
The IT-088 DVB-T Signal Analyzer is a configuration of the IT-08 Multifunction TV Meter comprised of MB-08 Base Unit and MC-088 Removable Module. IT-088 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 Meter allows measurement of DVB-T signal parameters and analog signals. IT-088 is capable to satisfy all your measurement needs for high-quality operation within the range of 45 to 865 MHz.
IT-088 KEY FEATURES: - lightweight and compact handheld design
- measurement modes:
- BER/MER mode performs measurements of DVB-T channels, 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 shows 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 before (preVBER) and after (postVBER) Viterbi decoder, and also after (postBER) 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 indicating 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 avaliable)
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
- Input attenuator 40 dB
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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 at operating temperature
| ±2.2 dB
| Measurement channel passband for -3 dB level
| 230 ± 60 kHz
| DVB-T parameters:
- Subcarrier modulation
- Channel bandwidth
- FFT mode
- Hierarchical modulation
- Guard interval
- FEC
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- 7, 8 MHz
- 2k, 8k
- α=1, α=2, α=4
- 1/4, 1/8, 1/16, 1/32
- 1/2, 2/3, 3/4, 5/6, 7/8
| MER measurement range (for QAM64, FEC 3/4)
- MER measurement resolution
- MER measurement accuracy within 50-110 dBµV level range
| 18 to 35 dB
| BER measurement range
- BER before Viterbi decoder
- BER after Viterbi decoder
- BER after Reed Solomon decoder
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- 1.0x10-2 to 1.0x10-8
- 1.0x10-3 to 1.0x10-8
- 1.0x10-4 to 1.0x10-8
| DVB-T channel power threshold (postVBER < 2.0x10-4)
| 40 dBμV
| Frequency auto tuning range
| ±0.5 MHz
| Warm-up time
| 10 min
| Battery life under normal conditions (2100 mAh battery capacity)
| 4 hours
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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 measurment mode
| List of channel plans
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PC software ViewIt08C ALLOWS: - performing all kinds of measurements
- viewing and saving data logs
- saving and documenting measurement results
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