KEYSIGHT N9912A FieldFox RF Analyzer

• The standard model includes a cable and antenna analyzer (CAT)
• 4 GHz standard (upgradeable to 6 GHz via option)
• Expand capabilities with optional T/R vector network analyzer, spectrum analyzer, built-in power meter, and more
• Many optional functions are available – please see below for more information.

The Keysight N9912A is a handheld combination RF analyzer. The standard model includes 4 GHz bandwidth and the following functionalities:

• One port cable and antenna analyzer
• Broadband calibration
• CalReady
• Standard mechanical cal kit support
• Measurements include: return loss, distance-to-fault (DTF), one port cable loss, and VSWR

Please note that bandwidth is upgradeable to 6 GHz. There are also a variety of other optional testing functions, including vector network analysis, spectrum analysis, and

For information on the other models in the FieldFox series, please see the selection information below on this page.

Cable and antenna analysis

Fifty to sixty percent of cell site problems are caused by faulty cables, connectors, and antennas. Degraded feed lines cause poor coverage, unnecessary handovers, paging failures, and access failures on the uplink. To avoid service quality problems, keeping cell sites’ cable and antenna systems in good condition is critical.

Use FieldFox to measure return loss, VSWR, insertion loss/transmission, one-port cable loss, and distance-to-fault (DTF). You can test antennas, cables, filters, and amplifiers with a single instrument.

FieldFox can make both return loss and distance-to-fault measurements at the same time. This helps you correlate overall system degradation with specific faults in the cable and antenna system.

The built-in cable editor allows you to edit existing cable types on-site and save them as new cable types with user-defined names.

Each instrument is CalReady at the RF Out port, following power-on or preset. This means it’s already calibrated and ready to make measurements such as one-port cable loss, VSWR, return loss, and DTF measurements at the test port.