XGY spectrum analyzers cover three common buying paths: a handheld analyzer for field work, a compact networked analyzer for fixed benches or production systems, and a USB analyzer for small automated setups. The right choice usually comes down to frequency range, real-time bandwidth, portability, and how the instrument will be controlled.
Quick Recommendation
| Need | Recommended fit | Why it fits |
|---|---|---|
| On-site RF, EMC, radar, 5G, or interference work | YSA-P400 Spectrum Analyzer | Handheld 9 kHz to 40 GHz coverage, 100 MHz real-time analysis bandwidth, and 1.5 kg portability. |
| Compact lab bench, remote monitoring, or production station | YSA-N400 Spectrum Analyzer | Compact networked 9 kHz to 40 GHz analyzer with Windows and Linux host control. |
| Lowest footprint USB analyzer for headless automation | YSA-U090 Spectrum Analyzer | USB real-time spectrum analysis from 9 kHz to 9 GHz with high sensitivity for compact test rigs. |
Model Comparison
| Model | Frequency range | Real-time bandwidth | Form factor | Typical role |
|---|---|---|---|---|
| YSA-P400 | 9 kHz to 40 GHz | 100 MHz RTSA | Handheld, approx. 1.5 kg | Field troubleshooting, EMC pre-compliance, radar pulse analysis, 5G FR1/FR2 work. |
| YSA-N400 | 9 kHz to 40 GHz | 100 MHz RTSA | Compact networked module | Bench integration, remote spectrum monitoring, production test stations. |
| YSA-U090 | 9 kHz to 9 GHz | 50 / 100 MHz RTSA by configuration | USB module | Low-footprint lab work, embedded RF monitoring, software-controlled automation. |
How to Decide
| Question | Choose | Reason |
|---|---|---|
| Do measurements move between sites? | YSA-P400 | Handheld 1.5 kg class instrument with 9 kHz to 40 GHz coverage and 100 MHz RTSA for field evidence. |
| Will the analyzer live in a rack or fixed bench? | YSA-N400 | Networked control is easier to script, monitor, and repeat than carrying a handheld through a production cell. |
| Is the workload below 9 GHz and space constrained? | YSA-U090 | USB RTSA is appropriate when 9 GHz coverage is sufficient and the host PC owns the workflow. |
Choose YSA-P400 when the measurement location changes
The YSA-P400 is the first choice when engineers need to walk into an EMC chamber, rooftop installation, radar range, or customer site and immediately capture transient RF events. Its 40 GHz upper range and 100 MHz real-time bandwidth make it the broadest portable option in the current XGY spectrum analyzer line.
Choose YSA-N400 when the analyzer will live in a system
The YSA-N400 suits fixed benches, rack-adjacent setups, and production cells where the analyzer is driven from a host PC. It keeps the 40 GHz frequency ceiling while using a compact networked form factor that is easier to integrate into long-running test systems.
Choose YSA-U090 when 9 GHz coverage is enough
The YSA-U090 is a practical choice when the workload is below 9 GHz and the system benefits from a small USB-connected analyzer. It is well matched to compact RF validation fixtures, automated monitoring, and labs that need multiple software-controlled analyzers rather than a larger handheld unit.
Engineering Acceptance Checkpoint
Treat the analyzer choice as accepted only when the capture plan can be repeated by a second engineer. The minimum evidence package should name the frequency span, RBW/VBW, detector mode, attenuation, preamp state, marker plan, antenna or probe, calibration status, and export format. For YSA-P400 or YSA-N400 class work, document why 9 kHz to 40 GHz coverage and 100 MHz RTSA bandwidth are required; for YSA-U090 class work, document why 9 kHz to 9 GHz coverage is sufficient. A field report should include at least 1 screenshot, 1 raw trace export, 1 site note, and the instrument serial number.
If your test plan includes price, lead-time, calibration, or automation requirements, use the quote form. XGY Tek can match analyzer choice to RBW, POI, DANL, trigger, and control-interface requirements before purchase.
Related Guides
- How to Choose an RF Signal Generator — for signal generation alongside spectrum analysis.
- How to Choose a PXIe VNA — for component and antenna characterization.
- EMC Pre-Compliance Setup with LISN and Spectrum Analyzer — for conducted-emissions bench planning and repeatable reporting.
FAQ
Engineering FAQ
Should frequency range or real-time bandwidth be selected first?
Select frequency range first when the signal may sit outside the instrument band. Select real-time bandwidth and probability-of-intercept requirements next when the workload includes short pulses, hopping signals, radar, or transient interference.
When is a handheld spectrum analyzer the right choice?
Use a handheld analyzer when the measurement location changes, such as rooftops, chambers, customer sites, vehicles, or field interference hunts. Keep a fixed or networked analyzer for repeatable bench and production work.
What should be saved with a spectrum analyzer report?
Save the frequency span, RBW, VBW, detector, attenuation, preamp state, antenna or probe, calibration status, screenshot, raw trace export, site note, and instrument serial number so another engineer can reproduce the result.