Technical Overviews
Keysight Technologies
Performing Line Sweep Measurements with FieldFox Cable and Antenna Analyzers
4/6/6.5/9/14/18/26.5 GHz
Technical Overview
N9912A
N9913A
N9914A
N9915A
N9916A
N9917A
N9918A
Boost your readiness FieldFox
Every piece of gear in your kit had to prove its worth. Measuring up and earning a spot is the driving idea behind Keysight Technologies, Inc.’s FieldFox analyzers. It starts with adaptability: every operating mode is flexible enough to meet the needs of novices and experts alike. To accelerate your work, each mode has a task-driven interface that saves time in the field. Best of all, FieldFox is designed to withstand your toughest working conditions.
FieldFox is ideal for performing cable and antenna (CAT) measurements. Key CAT measurements include:
Pick up FieldFox for its ergonomics
(N9912A 4/6 GHz)
Pick up FieldFox for its ergonomics
N9913A/14A/15A/16A/17A/18A
…and depend on its durability and convenience
Cable and antenna analyzer measurements
Cable and antenna analyzer
Fifty to sixty percent of microwave-link equipment issues are related to cables, antennas and connectors. Degraded feeder lines cause poor coverage, link failures, and reduced sensitivity on the receive path. To maintain the quality of a RF/MW link, it is critical to keep the cable and antenna systems in good working condition.
Use FieldFox to make return loss, VSWR, insertion loss, 1-port cable loss, and distance-to-fault measurements. You can test antennas, cables, filters, and amplifiers with a single instrument. The amplifiers can be biased using FieldFox’s built-in DC source.
Distance to fault
When the return loss of any given feeder line system, including the antenna, fails to meet specification, the next step is to find which part of the system failed. The distance to fault measurement or DTF is used to transfer frequency domain measurements to distance domain. This helps the user locate the discontinuity in feeder line.
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.
Return loss/VSWR measurements
Return loss /VSWR is the single most important parameter to measure and verify a cable and antenna system. This measurement reflects the power transfer efficiency of a given system. It combines with the distance-to-fault measurement, to help users quickly identify where the faulty RF components are.
Cable and antenna measurements
Cable loss measurement (1-port)
If RF and microwave cables have been installed on a tower or a building, like a distributed antenna system (DAS), it becomes difficult to measure cable loss by accessing both ends of the cable under test. FieldFox allows users to make single-port cableloss measurements with higher accuracy close to the insertion loss measurement and provides a higher dynamic range for longer cables.
Insertion loss
The insertion loss measurement characterizes the loss of a jumper cable, feeder cable, a connector, or an attenuator if both ends are accessible. It can also measure the filter type of devices like diplexer, duplexer, tower mounted amplifier (TMA), low noise amplifier (LNA) and bi-directional amplifier (BDA) etc. For amplifier measurements, it measures gain instead of loss of the device.
Waveguide measurements
The Waveguides are widely used to provide transmission links between microwave transmitters and antennas, as waveguides have less loss than coax. Due to the dispersion nature of a waveguide, it is always a challenge to figure out the velocity factor (VF) of a particular type of waveguide in DTF (distance-to-fault) measurements. FieldFox can help you automatically calculate waveguide VF when the waveguide type is chosen.
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