Viavi ONX-220, Руководство пользователя

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ONX-220 User's Guide
22135173, Rev. 000 June 2020 202
Chapter 12 Appendix
Specifications
Frequency
Range
Diplexer Upstream Downstream
Automatically
Switching
Diplexer 42/85 5 - 42 MHz
and 5 - 85
MHz 54 - 1,004
MHz and 108
- 1,218 MHz
65/204 5 - 65 MHz
and 5 - 204
MHz 83 - 1,218 MHz
and 258 MHz
- 1,218 MHz
Accuracy ±10 ppm typical @25°C
Downstream Analysis
AutoChannel
plan builder Auto detection of channel parameters
(analog/digital, symbols, QAM)
Max input
power 38 dBmV total integrated power
Return loss >6 dB
Upstream Analysis
Ingress
spectrum
scan 5.0 – 204 MHz
Sensitivity −38 dBmV
RBW 100 kHz
Min
detectable
level
upstream −38 dBmV
Accuracy ±2 dB typical at 25°C
Return loss >6 dB
Analog Channel Measurement
Video and audio levels (dual)
Standards NTSC , PAL
Min
detectable
signal −50 dBmV (single channel)
Level accuracy ±1.5 dB from −20 dBmV to +15 dBmV
typical at 25°C; ±2.0 dB, −10°C to
+50°C
RBW 300 kHz
Carrier to Noise
Channel types NTSC , PAL, non-scrambled
Range
30 to 51 dB
(NTSC, 4 MHz measurement
bandwidth)
Required
input level 0 to +15 dBmV with 77 analog channels
present, maximum ±15 dB tilt 50 to
1,000 MHz
Accuracy ±2.0 dB within specified measurement
range
≤ 600 MHz
Downstream Digital Channel Analysis
Calibrated
power levels -20 dBmV to +15 dBmV
Level accuracy ±1.5 dB from -20 dBmV to +15 dBmV
typical at 25°C; ±2.0 dB, -10°C to
+50°C
Modulation(s) 64, 128, and 256 QAM, OFDM
Annex A: 5.057 to 6.952 MSPS
Annex B: 5.057 for 64 QAM and 5.361 MSPS for 256
QAM
Annex C: 5.274 MSPS for 64 QAM and 5.361 MSPS for
256 QAM
Full span MER
Ingress under carrier — full span ingress noise trace
Group delay and in-channel frequency response (ICFR)
Digital quality index (DQI) over time
Errored/severely errored seconds
Level, measured symbol rate, carrier frequency,
modulation, interleaver depth (data log only)