The Agilent/Keysight 8591C is a portable cable TV analyzer for CATV network installation, maintenance, and troubleshooting across 1 MHz to 1.8 GHz. This one-box solution delivers dedicated non-interfering RF and video measurements without interrupting customer programming. It performs automatic FCC proof of performance measurements, carrier analysis, and video distortion characterization on both analog and digital cable channels in NTSC and PAL formats.
Technical Specifications
Frequency Coverage: 1 MHz to 1.8 GHz
Measurement Performance:
• RF sweep time: 20 milliseconds
• Frequency response accuracy: ±1.5 dB
• Warm-up time: 30 minutes
• Built-in preamplifier for enhanced carrier-to-noise measurement
• Precision frequency reference for accurate carrier frequency determination
• Fast time-domain sweeps with TV line selection by number
Standard Measurement Set:
• Carrier level, carrier frequency, and C/N ratio
• Video parameters including DG/DP and CLDI numeric values
• Digital cable TV channel power for NTSC and PAL
• One-button FCC proof of performance CATV measurements
– Key Features
Non-interfering measurements enable simultaneous multi-channel testing across multiple locations without service disruption. NTSC format is standard; PAL and SECAM worldwide formats available via option. The 85721A personality card enables compatibility with Agilent 8590 E-series spectrum analyzers for extended functionality.
Option 107 adds TV receiver and time gate capability, providing RF-to-baseband conversion, video demodulation, and simultaneous audio/video display.
– Typical Applications
• CATV system installation and acceptance testing
• Network maintenance and performance verification
• Proof of performance documentation
• Multi-channel RF and baseband signal characterization
• Preventive maintenance without service impact
– Compatibility & Integration
Standard RS-232 serial and parallel interfaces. Optional GPIB interface (Option 041) available. Compatible with 8590 E-series when using 85721A personality card. Additional options include oven (004), FADC (101), demodulator/TV (102), Gate Rev B (105), and narrow resolution bandwidth (130).
Supplied with protective soft yellow carrying case.

















