Near Field Signature Analyzers

Automated RF Near Field Measurements

Combining the Huntron Access Prober, Huntron Workstation Software and the new Test Evolution (TEV) Non-Contact Near Field Signature Analysis (NFSA) Probe sets the standard for Near Field Signature Analysis (NFSA). The combination of Huntron Prober and TEV RF Probe allows accurate positioning and measurement of Virtual Test Points (VTPs). This provides the repeatability to measure VTP's from 30MHZ to 3GHZ.
The Huntron Access 2 NFSA can handle PCAs up to 15.3" x 18" (38.9cm x 45.7cm) and has four slot levels for vertical PCA positioning. The Access 2 NFSA can handle the taller components on PCAs with 4" (10cm) of clearance.

Test Evolution (TEV) NFSA Probe

Both systems use the Test Evolution (TEV) NFSA Probe that is used to for fault determination in high frequency electronic circuits. The test frequency range is 30MHz to 3GHZ. The TEV NFSA Probe is an integrated monopole antenna, receiver and spectrum analyzer connected through a USB port. Central to this test system is the ability to place the TEV NFSA Probe at a repeatable position and distance from the Virtual Test Point. The Huntron Access Prober delivers this repeatability with +/- 20um placement accuracy on the XY plane and 200um resolution on the Z axis.

A more technical “white paper” description of the Huntron Access NFSA system can be downloaded using this link (presented at AutoTestCon 2008):
Case Study of Near Field Signature Analysis (NFSA)