Description

Keysight FieldFox N9935A Microwave Spectrum Analyzer

Keysight FieldFox N9935A spectrum analyzer is optimized to excel in a dynamic spectral environment. It’s  superior dynamic range (TOI > +15 dBm), close in phase noise (-111 dBc/Hz at 10 kHz offset), and fast sweep time make these challenging tasks easier.  FieldFox’s spectrum analyzer also provides a full power measurement suite and complete trace and state control. With the Keysight N9935A’s InstAlign capability, internal amplitude alignments occur automatically as environmental conditions change, without any user intervention. This provides unprecedented amplitude accuracy of ± 0.5 dB for spectrum analysis and power measurements.

With the combination of a fast, overlapping FFT processing technique, gap-free measurement, and a 10 MHz real-time bandwidth, the Keysight FieldFox N9935A is able to detect signals as short as 12 µs with 100% POI with full amplitude accuracy. The spectrum density view displays three-dimensional data on a two-dimensional display. It uses color to show the number of times a frequency and amplitude point is detected during a capture interval.  With FieldFox’s recording and playback, data can be saved for further analysis offline at a later date.

Keysight Technologies, Inc. FieldFox brings bench-level accuracy into the field by delivering precise handheld RF and microwave measurements that agree with benchtop analyzers. FieldFox RF and microwave analyzers include: spectrum analyzers (N993x), full 2-port vector network analyzers (N992x), and all-in-one combination analyzers (N991x). The combination analyzer’s base function is a cable and antenna analyzer and can be configured to include spectrum and network analysis. Select the functionality you need today and add more features as your needs change.

Features Keysight FieldFox N9935A

• Spectrum analyzer: time gating, channel power, adjacent channel power, occupied bandwidth, extended range transmission analysis, interference analysis
• Type tested and meets Procedure 1 requirements for operation in explosive environments. MIL-810G, Method 511.5
• No vents or fans extends instrument reliability and withstands salty, humid environments with wide operating temp of -10 to +55 °C (14 to 131 °F)
• Spectrum analyzer provides best amplitude accuracy +/- 0.5 dB, no warm up required
• Real-time spectrum analyzer (RTSA) with 10 MHz bandwidth and minimum detectable signal as short as 22 ns
• Full 2-port VNA: S11, S21, S12, S22, magnitude and phase, time domain analysis and mixed mode
• Capture every signal in real time
• Carry one integrated and lightweight unit (7.1 lbs)
• Detect small signals once masked by stronger signals
• Capture signals as narrow as 12 us with 100% POI with full amplitude accuracy
• Measure with confidence from 4 to 50 GHz – precise measurements agree with benchtop results
• Capture every signal with real-time spectrum analysis (RTSA) up to 50 GHz
• Withstands your toughest working environments – rugged enough to meet MIL-specs
• Weighs less than alternative solutions- millimeter-wave models 30% lighter than other handhelds
• Choose to configure as a cable and antenna analyzers (CAT), vector network analyzers (VNA), spectrum analyzers and all-in-one combination analyzer
• Cable and antenna analyzer: insertion loss, return loss, cable loss, distance-to-fault, time-domain reflectometry
• USB power measurements, built-in power meter and vector voltmeter
• Remote control with iOS device
• Meets MIL-PRF-28800F Class 2, IEC/EN 60529 IP53 requirements
• VNAs offer the most accurate calibration technique (full 2-port unknown thru)
• VNAs can test cable and antenna systems without external cal kits (QuickCal and CalReady)
• Built-in microwave independent signal source with flattened power output makes system verification easier in the field
• Full-band tracking generator

Spectrum Analyzer

In microwave, radar, and satellite communications, and commercial microwave backhaul, you may be responsible not only for hardware installation and maintenance, but also overthe-air signal quality. You may also need to regularly monitor unexpected signals and perform signal surveillance.

FieldFox’s spectrum analyzer is optimized to excel in a dynamic spectral environment. You may face measurement challenges such as the need to detect a low-level signal under strong signal conditions (requiring high dynamic range), or close-in small interference signals (requiring excellent phase noise). FieldFox’s superior dynamic range (TOI > +15 dBm), close in phase noise (-111 dBc/Hz at 10 kHz offset), and fast sweep time make these challenging tasks easier. FieldFox’s spectrum analyzer also provides a full power measurement suite and complete trace and state control.

Unprecedented amplitude accuracy without instrument warm-up

With FieldFox’s InstAlign capability, internal amplitude alignments occur automatically as environmental conditions change, without any user intervention. This provides unprecedented amplitude accuracy of ± 0.5 dB for spectrum analysis and power measurements. Better yet, FieldFox provides this accuracy immediately upon instrument turn on – no warm-up required.

Spectrum analyzer time gating

The testing of RF pulses is always challenging because so many instrument settings interact. With Option 238, gated FFT with time gating, FieldFox behaves like a spectrum analyzer and an oscilloscope. This enables you to quickly detect pulses in the time and frequency domains. A gate time of 6 µs to 1.8 s enables simultaneous examination of one or more pulses, or pulse rise and fall times, revealing the effects of spectrum growth due to various pulse shapes. Functions such as video trigger, external trigger and RF burst ensure reliable pulse detection. Automatic trigger-delay and bandwidth settings enhance characterization of RF pulses.

Specifications Keysight FieldFox N9935A