Tektronix RSA306B Calibration Instruments
  • Tektronix RSA306B Calibration Instruments

Tektronix RSA306B


9 kHz - 6.2 GHz/40 MHz Bandwidth USB Real Time Spectrum Analyzer



The RSA306B: A New Class of Instrument

The RSA306B offers full-featured spectrum analysis and deep signal analysis at a price unmatched by any previous offering. Using the latest in commercial interfaces and available computing power, the RSA306B separates signal acquisition from measurement, dramatically lowering the cost of instrument hardware. Data analysis, storage and replay is performed on your personal computer, tablet or laptop. Managing the PC separately from the acquisition hardware makes computer upgrades easy, and minimizes IT management issues.

SignalVu-PC Software and an API for Deep Analysis and Fast Programmatic Interaction

The RSA306B operates with SignalVu-PC, a powerful program that is the basis of Tektronix performance signal analyzers. SignalVu-PC offers a deep analysis capability previously unavailable in value-priced solutions. Real-time processing of the DPX spectrum/spectrogram is enabled in your PC, further reducing the cost of hardware. Customers who need programmatic access to the instrument can choose either the SignalVu-PC programmatic interface or use the included application programming interface (API) that provides a rich set of commands and measurements. A MATLAB driver for the API is available, enabling operation with MATLAB and the Instrument Control Toolbox.

The RSA306B with SignalVu-PC Offers Basic and Advanced Measurements for Field and Lab

See what you've never seen before: The 40 MHz real time bandwidth of the RSA306B combined with the processing power of SignalVu-PC shows you every signal, even down to 100 μs in duration. The following image shows a WLAN transmission (green and orange), and the narrow signals that repeat across the screen are a Bluetooth access probe. The spectrogram (upper part of the screen) clearly separates these signals in time to show any signal collisions.

Monitoring has never been easier. Spectrum mask testing captures detail of transients found in the frequency domain, such as intermittent interference. Mask testing can be set to stop acquisition, save acquisition, save a picture, and send an audible alert. The following image shows a spectrum mask (in orange on the spectrum display) created to monitor a band of frequencies for violations. A single transient of 125 μs duration has occurred that violated the mask, with the violation shown in red. The transient is clearly seen on the spectrogram above the red violation area (circled).

EMI pre-compliance and diagnostic measurements are easy with the RSA306B and SignalVu-PC. Transducer, antenna, preamplifier, and cable gain/loss can be entered and stored in correction files, and the standard spurious measurement feature of SignalVu-PC can be used to establish limit lines for your test. The following illustration shows a test from 30 MHz to 1 GHz with the test limit shown in green. Violations are recorded in the results table of the test below the graph. CISPR peak detection and -6 dB filter bandwidths are standard functions, giving you comparable results to other tools.

Analysis of AM and FM signals is standard in SignalVu-PC. The following screen shot shows a 1 kHz tone amplitude modulating a carrier to 48.9% total AM. Markers are used on the spectrum display to measure the modulation sideband at 1 kHz offset, 12.28 dB down from the carrier. The same signal is simultaneously viewed in the modulation display, showing AM versus time, with +Peak, -Peak and Total AM measurements. Advanced measurements for analog audio modulation including SINAD, THD and modulation rate are available in Option SVA.

SignalVu-PC Application-Specific Licenses

SignalVu-PC offers a wealth of application-oriented measurement and analysis licenses including:

  • General-purpose modulation analysis (27 modulation types including: 16/32/64/256 QAM, QPSK, O-QPSK, GMSK, FSK, APSK)
  • P25 analysis of phase I and phase 2 signals
  • WLAN analysis of 802.11a/b/g/j/p, 802.11n, 802.11ac
  • LTE FDD and TDD Base Station (eNB) Cell ID & RF measurements
  • Rate
  • Mapping and signal strength
  • Pulse analysis
  • AM/FM/PM/Direct Audio Measurement including SINAD, THD
  • Playback of recorded files, including complete analysis in all domains

Signal Classification and Survey

Modulation analysis application SVM enables multiple displays of modulation quality. The following screen shot shows the standard Channel Power/ACLR measurement combined with a constellation display and vector signal quality measurements on a QPSK signal.

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