Keysight N9934C 6.5 GHz FieldFox Handheld Microwave Spectrum Analyzer

Keysight N9934C 6.5 GHz FieldFox Handheld Microwave Spectrum Analyzer

The Keysight N9934C 6.5 GHz FieldFox Handheld Microwave Spectrum Analyzer is a portable test instrument for examining RF and microwave signals. It covers frequencies from 3 kHz to 6.5 GHz and includes spectrum analysis as standard. Engineers and technicians use it to install, maintain, and troubleshoot wireless equipment and investigate signal problems at a job site.

Its primary function is displaying signal strength across a selected frequency range. This helps users identify active transmissions, measure their frequencies and amplitudes, and detect unwanted signals such as harmonics or interference. By examining the spectrum, technicians can investigate why a communication system experiences noise, reduced coverage, or unreliable reception.

With the optional real-time spectrum analyzer capability, the N9934C captures rapidly changing or intermittent signals within an analysis bandwidth of up to 120 MHz, depending on installed options. Density spectrum and spectrogram displays reveal signal activity over time, helping users investigate brief transmissions and interference that may be difficult to observe with conventional swept measurements.

Additional options support over-the-air measurements of LTE and 5G NR signals within the instrument’s frequency coverage. GPS/GNSS capability adds measurement location information and timestamps, helping technicians document field surveys and compare results from different sites. These functions extend its usefulness for wireless network verification and troubleshooting.

Designed for field work, the N9934C weighs approximately 3.4 kilograms (7.4 pounds) and includes a rechargeable lithium-ion battery, AC/DC adapter, and carrying case. Its portable construction brings spectrum measurements directly to installed equipment, while software options allow users to expand its capabilities as testing requirements change.

Features:

• Frequency coverage: 3 kHz to 6.5 GHz.
• Standard spectrum analysis: Displays signal amplitude across frequencies to examine transmissions, harmonics, and interference.
• Optional real-time spectrum analysis: Captures intermittent signals with up to 120 MHz of analysis bandwidth, depending on installed options.
• Density spectrum and spectrogram displays: Show signal activity and changes over time with the appropriate options.
• Amplitude accuracy: Specified at ±0.15 dB under stated conditions, without requiring warmup.
• Optional LTE and 5G NR measurements: Supports over-the-air testing within its frequency coverage.
• GPS/GNSS support: Enables location tagging and measurement timestamps with the appropriate configuration.
• IQ streaming: Supports up to 1 MHz streaming bandwidth with the required options.
• Software upgrades: Enables additional measurement functions through licenses.
• Portable, durable construction: Designed for field testing and troubleshooting.
• Weight: Approximately 3.4 kg (7.4 lb).
• Battery operation: Includes a rechargeable lithium-ion battery.