Spectrum Analyzers — Buy & Sell Used Spectrum Analyzers
From benchtop signal analyzers to handheld field units, we buy and sell spectrum analyzers across every frequency range. If your lab is upgrading, we'll make a fast cash offer on the gear coming off the bench. If you're sourcing, tell us the model and we'll quote it.
Available Models & Sourcing Catalog
We buy and sell tested, verified-working used spectrum analyzers from leading brands. Find your model below to request a buy quote or get an offer on yours.
| Brand | Model | Description | Actions |
|---|---|---|---|
| Keysight / Agilent | N9040B UXA | Up to 50 GHz signal analyzer | |
| Keysight / Agilent | N9030B PXA | Up to 50 GHz signal analyzer | |
| Keysight / Agilent | N9030A PXA | 3.6-50 GHz | |
| Keysight / Agilent | N9020A MXA | 3.6-26.5 GHz | |
| Keysight / Agilent | N9020B MXA | Up to 50 GHz | |
| Keysight / Agilent | N9010A EXA | 3.6-44 GHz | |
| Keysight / Agilent | N9010B EXA | Up to 44 GHz | |
| Keysight / Agilent | N9000B CXA | 3-26.5 GHz | |
| Keysight / Agilent | E4440A PSA | 3 Hz-26.5 GHz | |
| Keysight / Agilent | E4445A PSA | 3 Hz-13.2 GHz | |
| Keysight / Agilent | E4448A PSA | 3 Hz-50 GHz | |
| Keysight / Agilent | E4402B ESA-E | 9 kHz-3 GHz | |
| Keysight / Agilent | E4404B ESA-E | 9 kHz-6.7 GHz | |
| Keysight / Agilent | E4407B ESA-E | 9 kHz-26.5 GHz | |
| Keysight / Agilent | 8560E | 30 Hz-2.9 GHz | |
| Keysight / Agilent | 8561E | 30 Hz-6.5 GHz | |
| Keysight / Agilent | 8563E | 9 kHz-26.5 GHz | |
| Keysight / Agilent | 8564E | 9 kHz-40 GHz | |
| Keysight / Agilent | 8565E | 9 kHz-50 GHz | |
| Keysight / Agilent | N9342C | Handheld, 7 GHz | |
| Keysight / Agilent | N9918A FieldFox | 26.5 GHz handheld combo | |
| Rohde & Schwarz | FSW26 | 2 Hz-26.5 GHz | |
| Rohde & Schwarz | FSW43 | 2 Hz-43.5 GHz | |
| Rohde & Schwarz | FSW50 | 2 Hz-50 GHz | |
| Rohde & Schwarz | FSVA3030 | 10 Hz-30 GHz | |
| Rohde & Schwarz | FSV3013 | 10 Hz-13.6 GHz | |
| Rohde & Schwarz | FSU26 | 20 Hz-26.5 GHz | |
| Rohde & Schwarz | FSP30 | 9 kHz-30 GHz | |
| Rohde & Schwarz | FSL18 | 9 kHz-18 GHz | |
| Rohde & Schwarz | FPC1500 | 5 kHz-3 GHz | |
| Rohde & Schwarz | FSH8 | Handheld, 8 GHz | |
| Anritsu | MS2090A Field Master Pro | Handheld, up to 54 GHz | |
| Anritsu | MS2720T | Handheld, up to 43 GHz | |
| Anritsu | MS2724C | Handheld, 20 GHz | |
| Anritsu | MS2726C | Handheld, 43 GHz | |
| Anritsu | MS2830A | Benchtop, up to 43 GHz | |
| Anritsu | MS2692A | 50 Hz-26.5 GHz | |
| Tektronix | RSA306B | USB real-time, 6.2 GHz | |
| Tektronix | RSA5126B | Real-time, 26.5 GHz | |
| Tektronix | RSA6114A | Real-time, 14 GHz | |
| Advantest | R3267 | 100 Hz-8 GHz | |
| Signal Hound | BB60C | USB real-time, 6 GHz | |
| Signal Hound | SM200B | USB real-time, 20 GHz |
Spectrum Analyzers Buying Guide
A spectrum analyzer is defined by five specs, in roughly this order: frequency range, resolution bandwidth (RBW), displayed average noise level (DANL, i.e. sensitivity), phase noise, and amplitude accuracy. Start with frequency range — it must cover your highest signal of interest plus any harmonics you need to see. RBW determines how well the instrument separates closely spaced signals and trades off against sweep speed and noise floor. DANL sets the smallest signal you can resolve, while close-in phase noise governs how well you can measure a weak tone sitting next to a strong one. If you chase transient or intermittent signals, look specifically for a real-time analyzer (RTSA) rather than a traditional swept design.
On the used market, value is driven far more by installed frequency range and software than by cosmetic condition. Many current platforms — Keysight's X-Series (PXA, MXA, EXA, CXA), Rohde & Schwarz FSW/FSV, and Anritsu's handhelds — gate top frequency and analysis bandwidth behind license keys, so two physically identical units can differ greatly in worth. Hardware and software options swing price too: an internal preamplifier, a tracking generator, real-time capability, and measurement applications (phase noise, noise figure, EMI/EMC, cellular and 5G) each add value. When you ask us for a quote, list the installed options and licenses, not just the model. A current calibration certificate commands a premium.
Buying refurbished typically saves 40-70% off list, and for these mature designs a unit from a few years ago measures every bit as well as a new one. The strongest value tends to sit in mid-range benchtop models (Keysight EXA/MXA, R&S FSV) and rugged handhelds (FieldFox, Spectrum Master), while high-performance signal/spectrum analyzers like the PXA and FSW carry six-figure new prices that make the used market especially attractive. Whether you're sourcing a unit or retiring one, send us the model and its options and we'll quote within one business day.
Frequently Asked Questions
How much is my used spectrum analyzer worth?
Value is set mainly by the model, the installed frequency range and software options (preamp, tracking generator, real-time, measurement apps), and calibration status — not age alone. Send us the model and a list of enabled options and we'll return a fair-market offer within one business day.
What's the difference between a swept and a real-time spectrum analyzer?
A swept analyzer steps a narrow filter across the span, so brief or intermittent signals can fall between sweeps. A real-time analyzer (RTSA) digitizes a wide band continuously and processes it with overlapping FFTs, capturing transients and signals with 100% probability of intercept within its real-time bandwidth. RTSA capability raises resale value.
Can I add frequency range or options after I buy?
Often, yes. Many modern analyzers license top frequency, analysis bandwidth, and measurement applications as software keys that can be added later, which also means a higher-licensed used unit is worth more.
Do you buy non-working or out-of-calibration spectrum analyzers?
Yes. We purchase units as-is, including out-of-cal and partially working instruments. Describe the condition when you request a quote so we can price it accurately.
Why buy refurbished instead of new?
Refurbished analyzers typically cost 40-70% less than new with identical measurement performance on mature designs. Every unit is tested and verified, and calibration can be arranged.
Don't see your model listed?
The test equipment catalog is massive. We trade, buy, and sell thousands of unlisted models from Keysight, Tektronix, Rohde & Schwarz, and other manufacturers. Tell us what you need and our sourcing team will find it.
We Buy Surplus Spectrum Analyzers Nationwide
Turn your retired, underutilized, or surplus equipment into working capital. We purchase single units as well as entire lab liquidations. Fast offers, immediate payments, and we coordinate all freight logistics.