Agilent / Keysight 8594Q QAM Analyzer, 9 kHz to 2.9 GHz
Agilent / Keysight Spectrum Analyzers. Frequency Range: 9 kHz to 2.9 GHz, Power Range (dBm): −55 dBm to +5 dBm.
- Model
- HP 8594Q
- Calibration
- Available on request
- Price
- $3,186
- RFQ ref
- 8594Q
This unit
The Agilent/Keysight 8594Q is a QAM analyzer purpose-built for digital cable TV system installation and maintenance, covering the 9 kHz to 2.9 GHz frequency range. It delivers quantitative and qualitative measurements of QAM signals to verify subscriber service quality and signal integrity across DVB-C and related cable standards. The instrument analyzes 16, 64, and 256 QAM constellations with support for multiple channel bandwidths: 8, 4, and 2 MHz for European DVB-C systems, plus 6 MHz with Option J91 for North American deployments.
Symbol rate support includes 5.056941, 5.360537, and 5.274 Msymbols/s with Option J91.
Technical Specifications
- Frequency Range: 9 kHz to 2.9 GHz
- QAM Constellations: 16, 64, 256 states
- Channel Bandwidths: 8, 4, 2 MHz (standard); 6 MHz (Option J91)
- Input Impedance: 50 Ω or 75 Ω (configurable)
- Maximum Total Incident Power: +5 dBm (with internal pre-amplifier)
- Minimum Average Power for EVM/MER: −55 dBm (with internal pre-amplifier)
Key Features Average channel power measurement displays real-time power across the measured channel from headend to subscriber drop. Adjacent channel power measurements quantify signal leakage into neighboring channels. Constellation display provides graphical views of demodulated signal points for rapid identification of modulation faults including gain compression and IQ imbalance. Error Vector Magnitude (EVM) and Modulation Error Ratio (MER) characterize modulation quality: EVM reaches 2.07% typical (1.74% best case) and MER achieves 30 dB typical (31.5 dB best case) for incident power below +20 dBm. Equalizer response analysis displays frequency, impulse, group delay, and phase response to identify transmission channel distortions. Option 195 enables DVB-C MPEG data verification and transport stream content validation with real-time ASI and parallel output for compressed MPEG analysis. Input flexibility accommodates external pads and matching transformers with configurable insertion loss and input impedance settings.
Typical Applications
- Cable TV headend and network signal verification
- QAM signal quality assessment during system commissioning
- Subscriber line troubleshooting and performance validation
- Channel equalization and transmission distortion analysis
Compatibility & Integration Supports DVB-C standards with region-specific configurations via Option J91 for North American systems. MPEG data analysis capabilities integrate with external compressed video processing via ASI and parallel outputs.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 9 kHz to 2.9 GHz | Power Range (dBm): −55 dBm to +5 dBm |
HP 8594Q — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the HP 8594Q. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
HP 8594Q price
This HP 8594Q is listed at $3,185.98. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
HP 8594Q calibration cost
NIST-traceable calibration for the HP 8594Q is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
