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The IT-087 Digital TV QAM 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 control 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-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 GENERAL FEATURES:
o lightweight and compact handheld design
o measurement modes:
· BER/MER mode performs measurements of DVB-C channels and indicates results on a bar-graph or a constellation diagram
· SPECTRUM mode provides the scanning of entire band with the span defined by the user from 18 to 72 MHz
· SCAN, TILT and RIPPLE modes indicate the level of all the channels present in the band (or channels according to the channel plan) on a bar-graph
· SCAN, TILT and RIPPLE modes indicate the level of all the channels (or channels according to the channel table), present in the band, on a bar-graph display and provide the tuning of channel levels
o 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.
o 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
o data logger function providing storage for:
· up to 32 channel plans (with channel names) and automatic channel plan creation. Automatic search for digital channel parameters (modulation type, symbol rate)
· up to 200 measurement logs (each indicating channel levels, C/N and V/A ratios), checking the parameter compliance with the limit plan and saving comments and measurement date and time. For digital channels channel power within bandwidth, S/N ratio, BER, and MER are measured
· up to 200 spectrum analyzer logs with 125 kHz step, adjustable scanning span and saving comments and measurement date and time. Saving up to 14 spectrum logs within the full frequency range
o analog channels audio reproduction with internal speaker
o measurement of AC/DC input voltage within the range of 10 to 100 V
o operation with PC for access to additional modes:
· performing all kinds of measurements
· viewing and editing channel plan pages
· updating software and firmware
· editing channel template
Specifications:
| Frequency tuning range | 5 to 900 MHz |
| Operating frequency range | 45 to 865 MHz |
| Resolution | 125 kHz |
| Built-in attenuator | 20, 40 dB |
Input mismatch attenuation
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level measurement range
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| 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 |
| Input signal modulation | QAM 64, 128, 256 |
| Symbol rate | 5.000 to 7.000 MSps |
| MER measurement range | 20 to 40 dB |
| MER measurement resolution | 0.1 dB |
| MER measurement accuracy | ±2.0 dB |
BER measurement range
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| DVB-C channel real power threshold (preBER < 2.0x10-4) | 50 dBμV |
| Frequency auto tuning step | ±0.5 MHz |
| Warm-up time | 10 min |
| Battery duration under normal conditions (2100 mAh battery capacity) | 6 hours |
SAMPLE SCREEN VIEWS
PC SOFTWARE ViewIt08C ALLOWS TO:
o performing all kinds of measurements
o viewing and saving data logger pages
o editing channel plans
o saving and documenting measurement results
