Keysight / Agilent N5249A PNA-X Microwave Network Analyzer, 8.5 GHz

The Keysight N5249A PNA-X is a microwave network analyzer operating from 10 MHz to 8.5 GHz, engineered for linear and nonlinear RF device characterization. This instrument integrates multiple test functions - network analyzer, spectrum analyzer, signal sources, noise figure meter, power meters, and switch matrix - into a single platform, eliminating the need for separate equipment and streamlining test architecture.

Technical Specifications

Frequency Range: 10 MHz to 8.5 GHz IF Bandwidth: 10 Hz minimum Dynamic Range: System dynamic range defined as maximum leveled output power minus noise floor. Extended dynamic range available at direct access input (specified source maximum output power minus direct receiver access input noise floor). Receiver dynamic range defined as test port compression at 0.1 dB minus noise floor. Trace Noise: 0.002 dB rms at 1 kHz bandwidth Source Output Power: +13 dBm at 1 GHz

Key Features

• S-parameter measurement in CW and pulsed modes


• Noise figure characterization


• Gain compression and 1 dB compression point analysis


• Intermodulation and harmonic distortion measurement


• Conversion gain/loss quantification


• True-differential stimulus capability


• Nonlinear waveform and X-parameter characterization


• Pulsed-RF measurements with point-in-pulse capability at 20 ns minimum pulse width


• Wideband detection supporting pulse widths as narrow as 100 ns


• Hardware filters and patched spectral-nulling with software IF-gating for narrowband detection


• Pulse I/O connector on rear panel for external equipment synchronization


• Two internal signal sources with integrated signal combiner


• Dedicated S-parameter and noise receivers


• Configurable test ports: two-port or four-port options

Typical Applications

• Active device characterization and validation


• Antenna performance testing


• Amplifier and mixer measurement


• Component qualification across microwave frequencies

Compatibility & Integration Noise figure measurement option (029) requires compatible port configuration options. The instrument supports pulse I/O synchronization for integration with external devices and test setups requiring timing correlation. Note: The N5249A is an obsolete model.