pag. 54
ST2 User’s Manual
• Automatic recognition & visualisation of: HP/LP rate, guard interval, constellation
– Rate: 1/2, 2/3, 3/4, 5/6, 7/8
– Guard interval: 1/4, 1/8, 1/16, 1/32
– Constellation: QPSK, 16 QAM, 64 QAM
• Automatic Digital signal quality TEST on channel: PASS–MARG–FAIL
• Spectrum inversion: automatic
TV SPECTRUM ANALYSIS
• Frequency band: 44–870 MHz
• Span in TV band: 2–5–7–10–20–50–100– 200–500–FULL
• dB/div: 10
• Dynamic range on the display: 60 dB
• MRK Measurement resolution: 0.1 dB
• Measurement fi lter bandwidth: TV 130 KHz at –3 dB
• Reference level: from 0 to 120 dBμV, from –50 dBmV to +70 dBmV
• Reference level setting: automatic, and manual adjustable
• Frequency/level marker position:
– For digital signals in channel centre
– For analogue signals on video carrier
• Other spectrum selections:
– MAX HOLD