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IT-088 DVB-T Signal Analyzer

it-088
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

  • 14 dB
  • 18 dB
Level measurement range
  • Input attenuator off
  • Input attenuator 20 dB
  • Input attenuator 40 dB

  • 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:
  • Channel modulation
  • Subcarrier modulation
  • Channel bandwidth
  • FFT mode
  • Hierarchical modulation
  • Guard interval
  • FEC

  • COFDM
  • QPSK, QAM16, QAM64
  • 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
  • 0.1 dB
  • ±2.0 dB
BER measurement range
  • BER before Viterbi decoder
  • BER after Viterbi decoder
  • BER after Reed Solomon decoder

  • 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

SAMPLE SCREENSHOTS
Main menu
LEVEL measurement mode
SPECTRUM measurement mode
Main menu
LEVEL measuring mode
SPECTRUM measuring mode
SCAN measurement mode
TITL measurement mode
RIPPLE measurement mode
SCAN measuring mode
TILT measuring mode
RIPPLE measuring mode
Constellation diagram
MER/BER measurment mode
List of channel plans
MER/BER measuring mode
MER/BER measuring mode 1
Channel plan list

PC software ViewIt08C ALLOWS:

  • performing all kinds of measurements
  • viewing  and saving data logs
  • editing channel plans
  • saving and documenting measurement results
PC software ViewIt08C

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