RF accessories set the practical measurement floor. Cable phase stability, shielding, connector repeatability, and EMC fixtures can determine whether a spectrum analyzer or VNA reaches its rated performance at the DUT.
Quick Recommendation
| Need | Best fit | Why it fits |
|---|---|---|
| Precision VNA measurements up to 67 GHz | VT Series VNA Test Cable | Designed for repeatable vector network analyzer connections where phase stability matters. |
| General precision RF and mmWave test up to 110 GHz | PT Series Test Cable | Use for high-frequency interconnects where ruggedized measurement performance is needed. |
| Field, outdoor, or moving test environments | GL Series Test Cable | Phase-stable DC to 26.5 GHz cable series with strong shielding and crush-resistant construction. |
| Conducted emissions pre-compliance | EM5040 Series LISN | Provides defined mains impedance and measurement port routing for EMC conducted disturbance testing. |
Selection Factors
| Factor | What to check |
|---|---|
| Frequency ceiling | Choose connector and cable families above the highest test frequency with margin. |
| Phase stability | VNA, phased-array, and radar measurements need low phase change under flex and movement. |
| Durability | Production and field benches need armor, strain relief, and connector lifecycle planning. |
| EMC role | LISNs and shielded cables are selected around standards, current rating, and measurement receiver range. |
How to Decide
Choose VT for VNA repeatability
VNA cables are calibration-critical. Choose the VT series when fixture movement, port extension, de-embedding, and repeated reconnection would otherwise dominate measurement uncertainty.
Choose PT or GL by environment
PT cables fit high-frequency lab and production setups where precision and ruggedness both matter. GL cables are better suited to field, chamber, and moving setups where crush resistance and phase stability under handling are more important.
Use EM5040 for conducted emissions workflows
A LISN belongs between the DUT power input and the supply during conducted emissions work. Pair it with an XGY spectrum analyzer, appropriate limit lines, and careful grounding for a repeatable pre-compliance bench.
For RF accessory selection, share maximum frequency, connector type, cable length, bend radius, motion profile, calibration requirements, and EMC standard target. XGY Tek can match cable series, adapters, LISN, and measurement instrument together.