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ITM-20C, ITM-20T2 TV Remote Service Analyzer

ITM-20C TV Remote Service Analyzer ITM-20T2 TV Remote Service Analyzer

ITM-20C TV Remote Service Analyzer is designed for measurement of TV channel parameters and transmission of measurement results to remote PC via TCP/IP local area network. The Analyzer is used in the cable TV networks for the purposes of continuous automatic monitoring of signal parameters.

Features:

  • Level, C/N ratio measurements for channels with analog modulation
  • Level, MER & BER measurement for channel with digital modulation
  • Channel plan and single channel mode
  • Operating monitoring systems via ViewRSA software & SNMPv1 protocol
  • Firmware updating & device settings via WEB interface
  • Rack mount for Din rail
Specifications
Operating frequency range, MHz
45 to 1002
Frequency resolution, kHz
125
Level measurement range, dBµV
30 to 90
Level measurement accuracy, dB
±2
Analog channel level measurement time, ms, less than
500
Digital channel level measurement time, ms, less than
100
ITU-T J.83 Annex A/B/C, including DVB-C (for ITM-20C)
Modulation type
QAM64, 128, 256 / ITU-T J.83 Annex A/B/C
Symbol rate, Msps
5 to 7
MER measurement range, dB
22 to 42
BER measurement range, dB
5.0x10-3 to 1.0x10-8
MER measurement accuracy, dB
±2
MER, BER measurement time including synchronization, s, less than
15
DVB-T2 measurement (for ITM-20T2)
Channel Bandwidth, Mhz
7, 8
Standard specification
v1.1.1
Channel modulation type
COFDM
Subcarrier modulation types
QPSK, QAM16, QAM64, QAM256
Number of subcarriers
1k, 2k, 4k, 8k, 16k, 32k
Relative coding velocity
1/2, 3/5, 2/3, 3/4, 4/5, 5/6
MER measurement range for QPSK modulation PLP, dB
4 to 35
MER measurement range for QAM16 modulation PLP, dB
10 to 35
MER measurement range for QAM64 modulation PLP, dB
16 to 35
MER measurement range for QAM256 modulation PLP, dB
22 to 35
Pre LDPC BER measurement range
1.0x10-1 to 1.0x10-5
Pre BCH BER measurement range
3.0x10-4 to 1.0x10-8
MER measurement accuracy, dB
±2
MER, BER measurement time including synchronization, s, less than
15
Other settings
Power supply voltage, V
5 to 24
Power consumption, W
1.5
Operating temperature range, 0С 0 to +50
Input connector
75 Ohm, F-female
Control interface
Ethernet, RJ45/100Base-TX
Dimensions, mm
70x114x57

 

 

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