CATV Network Testing Simplified
The CX380 is a super-tech installation and maintenance tool for next generation CATV networks. Equipped with a large 7" touch-screen color LCD and intuitive graphical user interface, the CX380 can be used under all light conditions. This highly flexible unit combines a 1GHz spectrum analyzer with 60dB dynamic range, a forward and return path Digital QAM analyzer, and an MPEG analyzer in a single portable instrument.
An array of advanced digital measurements including MER, Pre/Post BER, EVM, HUM, Phase Jitter, Frequency Response, Equalizer taps, In-channel flatness, frequency and symbol rate errors address all testing aspects of standard and high definition CATV signals. An intuitive statistic mode records up to 60 minutes of signal history displaying Level, MER, Pre/Post error rate, and errored seconds and other anomalies in minute or second resolution and intervals.
An optional US/Euro DOCSIS 2.0 cable modem verifies Internet connectivity and Triple Play services via the RF interface. Comprehensive return path analysis is possible when the built-in Upstream Signal Generator is connected to a CX380 or CX180R monitoring system located at the headend.
At a weight of less than 2.5 Kg/6 lb, the CX380 ensures portability, while the smart LiIon battery pack provides 8 hours of autonomy.
General
Input Impedance: 75O
Frequency Range: 5MHz to 1GHzInput Level Range: -50dBmV to +60dBmV
Dynamic Range: 60dBDisplay Range: 70dB
Vertical Scale: 2, 5, 10dB
Attenuation: 0 to 50dB in 5dB steps
Frequency Reference: ± 2ppm typical
Analog Channel Measurement
Level Range: -50dBmV to +60dBmVLevel Accuracy: ± 1.5dB
Level Resolution: 0.1dB
Standards: NTSC, PAL, SECAM
Channels: Video, Audio 1 and Audio 2, and FM V/A1, V/A2 Adjacent
Advanced Analog Measurements (software option)
• C/N, HUM, CSO/CTB
Digital Channel Measurement
Level Range: -50dBmV to +60dBmV
Level Accuracy: ± 1.5dB
Level Resolution: 0.1dB
Modulation: QAM16/64/128/256, Annex A/B/C
Symbol Rate: 1 to 7MHz programmable
Constellation Display: QAM16/64/128/256 with zoom
Minimum QAM Locking Level: -15dBmV
Adaptive Equalizer Display
MER Range: 22dB to >40dB, ± 1.5dB
Adjacent ChannelPre & Post BER Range: 0 to 9 x 10-3 Errored and Severely Errored Seconds
Histogram Analysis: up to 60min per minute and per second
• MER, Pre BER, Post BER, Errored Sec, Severely Errored Sec Advanced Digital Measurements (software option)
• Group Delay, MaxAC, Phase Jitter, Symbol Rate Error, Frequency Error, Frequency Response, HUM, EVM, Carrier to Noise, Carrier to Ingress
Spectrum Analysis
Span: 5MHz to 1GHz, zero span
Resolution Bandwidth: 1MHz, 300kHz, 100kHz, 30kHz, 10kHzVideo Bandwidth: 1MHz, 100kHz, 10kHzMinimum Sweep Time: 30ms
Other Measurements
System Scan: typical 30 secondsTilt: up to 10 channels
Programmable Pass/Fail Threshold: 10 setsProgrammable Channel Table: 20 tablesTest Point Compensation: 10 sets