ISO/IEC 17025 Accredited · Trusted by Engineers Worldwide · Serving 11 Industries
+1 530-268-1860 contact@microprecision.com
ISO/IEC 17025 Accredited · Trusted by Engineers Worldwide · Serving 11 Industries
+1 530-268-1860 contact@microprecision.com
Handheld spectrum analyzers deliver lab-grade RF measurements in a portable, field-ready form factor — essential for site surveys, interference hunting, cable and antenna testing, and field verification. Micro Precision stocks certified handheld spectrum analyzers from Keysight and Anritsu, covering frequency ranges from 100 kHz up to 44 GHz. All units are ISO/IEC 17025 inspected and ship within 2 business days.
Image | Name | Brand | Condition | Frequency Range | Price |
|---|---|---|---|---|---|
 | Portable and durable, the Anritsu S331D tests cables and antennas from 25 MHz to 4 GHz—perfect for RF field engineers needing fast, accurate measurements. | Anritsu | Used | 25 MHz – 4 GHz | $1,595.00 |
 | Keysight N9340B Handheld Spectrum Analyzer, 100 kHz–3 GHz, portable, fast sweep, low noise, ideal for field RF measurements. | Keysight | Used | 100 kHz – 3 GHz | $3,495.00 |
 | Keysight N9342CN handheld spectrum analyzer with 100 kHz to 6 GHz range, tracking generator, and USB connectivity for precise analysis. | Keysight | Used | 100 kHz – 7 GHz | $5,295.00 |
 | Keysight N9918A FieldFox RF analyzer with 5 kHz to 26.5 GHz range, built-in spectrum and network analyzer, and portable design for field use. | Keysight | Used | 30 kHz – 26.5 GHz | $24,450.00 |
 | Keysight N9928A FieldFox microwave analyzer with 30 kHz to 26.5 GHz range, built-in network analyzer, and portable design for field testing. | Keysight | Used | 30 kHz – 26.5 GHz | $21,595.00 |
 | Keysight N9951A FieldFox microwave analyzer with 30 MHz to 50 GHz range, built-in spectrum and network analysis, and portable design for field use. | Keysight | Used | 30 kHz – 44 GHz | $34,995.00 |
Buying Guide
Match the instrument to your field measurement requirements.
For cellular, Wi-Fi, and general RF work, a 3–7 GHz portable spectrum analyzer (N9340B, N9342C) covers most field needs. Microwave and 5G applications require coverage up to 26.5 GHz or 44 GHz — the FieldFox series (N9918A, N9928A, N9951A) is engineered for these demanding environments. Always select a model with at least 20% headroom above your highest target frequency.
The Anritsu S331D and Keysight FieldFox analyzers include built-in cable and antenna analyzer (CAA) functionality — measuring VSWR, return loss, and cable fault distance. Essential for field technicians maintaining antenna infrastructure, validating coax runs, or troubleshooting tower installations without carrying a separate instrument.
A hand held spectrum analyzer runs on battery, starts a measurement in seconds, and survives field environments that would damage lab equipment. The trade-off is dynamic range — benchtop units typically offer 10–20 dB better displayed average noise level (DANL) and larger screens suited to deep signal analysis. For site surveys, interference hunting, and field verification, a portable unit is the practical choice.
Some field measurements go beyond spectrum monitoring. A handheld vector network analyzer measures S-parameters, return loss, and insertion loss — essential for validating antenna installations and characterizing filters in the field. The Keysight N9928A is a dedicated handheld network analyzer built for this purpose. The N9918A combines full VNA capability with spectrum analysis in a single portable unit, so you're not carrying two instruments up a tower.
Every unit from Micro Precision is tested against the manufacturer's published performance specifications before it ships. Calibration is performed in our ISO/IEC 17025 accredited lab — traceable to NIST standards — and a calibration certificate is included with each instrument. Units pass inspection covering frequency accuracy, displayed average noise level (DANL), dynamic range, and port matching. All units arrive ready to measure, backed by a 30-day return policy.
FAQ
Handheld spectrum analyzers are battery-powered and ruggedized for field use. Benchtop analyzers offer higher dynamic range but require AC power. For site surveys and field verification, a handheld unit is the practical choice.
Sub-6 GHz 5G testing requires minimum 7 GHz coverage. For mmWave 5G (24–40 GHz bands), you need the Keysight N9951A (44 GHz) or N9918A/N9928A (26.5 GHz). Always select a model with at least 20% headroom above your target frequency.
Yes. Every FieldFox unit from Micro Precision undergoes full ISO/IEC 17025 accredited calibration before shipping with a NIST-traceable calibration certificate.
Both cover 30 kHz to 26.5 GHz. The N9918A includes full 2-port VNA with cable and antenna analyzer. The N9928A focuses on spectrum analysis with enhanced dynamic range. Choose N9918A for combined cable/antenna + spectrum work; N9928A for dedicated spectrum analysis.
Yes — the terms are interchangeable. Engineers in North America typically say "handheld spectrum analyzer," while UK and European users often search "handheld spectrum analyser" or "portable spectrum analyser." The instrument is the same: a battery-powered, field-ready RF measurement tool. The distinction worth noting is between a pure spectrum analyzer and a combined instrument like the Keysight FieldFox, which adds VNA and cable/antenna analyzer modes to a single portable unit.