◈ QAM SIGNAL ANALYZER 1720Q

■ FEATURES

• 1720QAM are the very excellent signal analyzers of choice for field testing of QAM digital signals on your cable TV system.
• Frequency Range : 5MHz ~ 870MHz

• They demodulate and accurately measure the QAM signals carried through the cable system.

• They provide the measurement power the field technicians need for the latest 64-256QAM digital technologies and are very simple to use, measuring SNR(MER), EVM, Pre-BER, Post-BER, Constellation Diagram.

• Portable type, Weight less than 1Kg, Computer interface.
  (Data Logger, Printing, Editing)

• Video / Audio Level
• V / A ratio
• CTB/CSO
• C/N(Video Level : over 50dB㎶)

• Digital Power Measurement
  (VSB, QAM, COFDM, QPSK)
• C/N(Video Level : over 40dB㎶)
• 64QAM / 256QAM Measurement
  1) MER(SNR)
  　64QAM : 22 ~ 37dB(±2dB)
  　256QAM : 28 ~ 37dB(±2dB)
  2) Pre-BER, Post-BER : 10E-2 ~ 10E-8
  3) Constellation Diagram : Zoom In
  4) EVM : 1.5 ~ 8.0%
• QAM Constellation Patterns & Possible Causes

■ Tilt Spectrum Analyzer

• Max. 15 channels/frequencies

■ Scan Mode(Indication)

• Video Level - Audio Level
• Video Level - C/N
• Video Level - PASS(FAIL)

■ Channel/Frequency Spectrum Analyzer

• Channel Spectrum Span
  : Display max. 110 channels at screen
• Frequency Spectrum
  1) Span : 2 ~ 560MHz
  2) Detect Method : PEAK, AVERAGE

■ Reverse Noise Measurement

• 9 ~ 65MHz

■ Memory List

• User can store/edit Max. 30channels
  (frequencies)

■ Data Logger

• Max.32 data files can be saved/printed/
  edited.