Real Time Spectrum Analyser RTSA7500 from BNC

Berkeley Nucleonics PC-Controlled Real Time Spectrum Analysers (RTSA)


The BNC Model RTSA7500 Real Time Spectrum Analyser has all the standard features of a spectrum analyzer such as frequency controls, marker functions and multi-trace functionality. It also includes a real-time trigger mode for measuring complex data signals such as Wi-Fi and LTE along with markers for tracking specific frequencies.


Real-time triggering is enabled by sophisticated FPGA-based digital signal processing within the RTSA7500 and enables the capture of elusive, time-varying signals across an instantaneous bandwidth of up to 100 MHz. The Model RTSA7500 is a powerful and cost-effective solution for your real time spectrum analyser needs in the lab, on the manufacturing floor or out in the field.


Real Time Spectrum Analyser


  • Real-time spectrum
  • Real-time spectrogram
  • Real-time power spectral density (persistence)
  • Real-Time Triggering
  • Real-Time Recording and Playback

Berkeley Nucleonics Real Time Spectrum Analyser

Extensibility of the RTSA7500 Real Time Spectrum Analyser  for additional functionality and OEMs


  • 10 MHz In for external references and a 10 MHz Out reference for multi-unit synchronization
  • Analog I/Q Out enables OEM high speed digitizers and post-processing software tools
  • GPIO for external triggers and exterior modules such as antenna switches, downconverters, and GPS
  • 10/100/1000 Ethernet port for control and networking the RTSA7500
  • +12 V DC power input allowing drive testing with automobile 12 V DC sources and personal mobility with an external 12 Volt battery
  • External support for 80 MHz and 160 MHz RTBW (optional)
  • External Local Oscillator inputs for phase-coherent radio front-ends (not shown and optional)


SpectrogramSpectrogram View
Along with the standard spectrum graph which plots Power versus Frequency the user can select the Spectrogram View. The Spectrogram View provides a 3-dimensional view of the spectrum adding the dimension of Time. Time zero is at the top of the Spectrogram view and measurements in the past scroll down. The color indicates the relative magnitude of the Power. In this case, white being the highest power. Several palettes are available to optimize for best viewing depending on the signals to be evaluated. By looking at Time, one can see the periodicity of any given signal.


Power Spectral Density

Power Spectral Density Display
The Power Spectral Density Display is commonly called the Persistence Display. Both names give a partial description of what the display does. The color is an indication of how dense or how often the signal is present at the respective power level. In this case yellow represents the level the signal is at most of the time. And signals persist on the screen for a few seconds before fading out allowing you to see signals that come too fast to view in the spectrum graph. One can see the Wi-Fi signal, the Bluetooth Signals, and the Microwave Oven Signals that were present just a few seconds earlier.


IQ PlotsI /Q Plots
The I/Q plot consists of two plots, the I/Q Constellation (if available) on the left, and the I/Q Time Domain on the right. The Constellation data displays the In-phase (I data) vs. the Quadrature (Q data). The Time domain plot shows a trace for the In-phase (I data in green) and a trace for the Quadrature (Q data in red, if available in the mode).


Make measurements locally or remotely Measurement can be made remotely via the Internet around the globe. Ideal for remote monitoring applications.


  • Up to six traces are available as Trace Normal, Trace Average, Max Hold, and Min Hold.
  • Twelve Markers are available as Normal (tracking), Delta, and Fixed with Peak Search functions that can be assigned to any trace.
  • The Real-Time Level Trigger only captures signals over a certain level and is useful for viewing signals over the Internet.
  • For remote applications, Record data on the local PC and then use Playback to view the data without any Internet latency.
  • The widescreen view of a laptop or PC monitor enables enhanced viewing not available on instruments with built-in screens.
  • The intuitive GUI display makes it easy to operate for anyone familiar with a benchtop spectrum analyzer.

Berkeley Nucleonics Real Time Spectrum Analyser Summary Slides








Band FM Radio (88 108 MHz) with 12 Markers


FM Radio Station with Fixed and Delta Markers


Band Wi-Fi 2.4 GHz (2400 2483 MHz) 40 MHz RTBW


Band Wi-Fi 2.4 GHz (2400 2483 MHz) 100 MHz RTBW


Features / Applications

  • Frequency Range from 100 kHz to 8, 18, or 27 GHz
  • Real-Time Bandwidth (RTBW) up to 100 MHz
  • DSP filtering and decimation
  • Real-time FPGA triggering for detection of elusive, time-varying signals
  • Probability of Intercept (POI) as short as 1.02 µs
  • Spurious Free Dynamic Range (SFDR) up to 100 dBc
  • 10 MHz in/out for multi-channel synchronization
  • Analog I/Q outputs for higher sampling rate digitization
  • Open source Python, LabVIEW, MATLAB®, C/C++ and SCPI/VRT APIs

Real Time Spectrum Analyser Options

  • RTSA7500-8B – 100 kHz to 8 GHz with 10 MHz RTBW
  • RTSA7500-8 – 100 kHz to 8 GHz with 100 MHz RTBW
  • RTSA7500-18 – 100 kHz to 18 GHz with 100 MHz RTBW
  • RTSA7500-27 – 100 kHz to 27 GHz with 100 MHz RTBW

Aaronia Handheld Spectrum Analysers

Aaronia handheld spectrum analyserAaronia’s portable RF handheld spectrum analyser offers outstanding performance and price

The SPECTRAN series are a highly valuable tool for engineers performing EMC evaluation testing and testing for RF interference.

Aaronia have spectrum analyser models for frequency coverage up to 9.4GHz the following information is for the HF-4040 4GHz unit.


Technical Data for the Aaronia HF-4040 handheld Spectrum Analyser:Aaronia Spectrum Analyser

  • Frequency range: 100MHz to 4GHz
  • Amplitude: -90dBm to 0dBm (typ.)
  • Lowest sample time: 100mS
  • Resolution (RBW): 100kHz to 50MHz
  • Units: dBm, dBµV, V/m, A/m, W/m²
    (dBµV/m, W/cm² etc. via PC software)
  • Detectors: RMS, Pulse
  • Input: 50 Ohm SMA RF-input (f)
  • Accuracy: +/- 3dB (typ.)
  • Interface: USB 2.0/1.1
  • Dimensions (L/W/D): 250x86x27 mm
  • Weight: 420gr
  • Warranty: 10 years


  • Exposure limit calculation and display according to DIN/VDE 0848
  • RF spectrum display
  • Data Logger (64K), expandable to 1MB (Option 001)
  • Real-time remote control via USB
  • Simultaneously displays frequency and signal strength
  • Large, high resolution multifunction LCD
  • Vector (I/Q) measurement
  • AM, FM demodulation
  • DECT & TimeSlot analyzer
  • Real-time Peak Power Detector (option)
  • Hold function
  • Switchable Pulse mode
  • Included EMC directional antenna HyperLOG 7040
  • Free MAC OS, Linux and Windows software

Aaronia’s portable RF handheld spectrum analyser range represents outstanding performance and price. The SPECTRAN series are a highly valuable tool for engineers performing EMC evaluation testing and testing for RF interference.

As well as being lower cost, the SPECTRAN RF units are much smaller, lower power and lighter than other RF spektrum analysers currently available. The low power consumption offers up to 9 hours of continuous operation from a charge which truly is a new record on portable analyzers.

Spectrum DisplayThe SPECTRANs offer RF service engineers a highly portable and cost effective tool that enables to carry a spectrum analyser to areas that have usually been not cost effective when using existing “portable” products and difficult or even impossible to access with bench top instruments offered by other manufacturers.

Our low cost and ultra portable handheld spectrum analyser ensure that site survey and RF testing can be performed on any site visit.

The SPECTRAN V3 series weighs less than 420gr and measures only 250 x 86 x 27 mm. The low weight and small dimensions make it a true handheld instrument, unlike other “portable” spectrum analysers which can be up to ten times the size and weight.

Patented technology:

Based on a patented spectrum analyzer method Aaronia can offer a professional RF measurement at a spectacular price level.

Detect sources of interference, find out more about their causes, determine the frequency and intensity of the signal sources, measure limits and boost the functionality by using our high-end PC software.

Made in Germany:

All SPECTRANs are developed, individually produced and calibrated in Germany at the Aaronia factory. This guarantees highest standard so that Aaronia can offer every customer a full 10 year warranty for all SPECTRAN spectrum analyzer and EMC antennas.

Real-time Spectrum analyzer software (included for FREE):Aaronia Spectrum Analyser Software

All SPECTRAN units offer a USB interface with real-time remote control to your PC or MAC. The free analyzer software, which is available for MAC OS, Linux and Windows, transforms any SPECTRAN in a powerful measurement solution with great features (e.g. recording, multiple window display, histogram, waterfall diagram, unlimited number of markers, enhanced limits display etc.). Please have a look at the latest version of our software at our software development website.

The professional PC analysis software demonstrates SPECTRAN’s vast capabilities. This software can be used in addition to SPECTRAN and
offers an incredible amount of features. All this for FREE. Just download it from our homepage, and your PC turns into a real spectrum analyser with a huge display:

  • MULTI-device capability! Remote control of several SPECTRAN units. These can be controlled and their data displayed at once on a Aaronia Spectrum Analyser Softwaresingle PC.
  • HIGH-RESOLUTION!, freely scalable, coloured spectrum display with falloff function..
  • Display of channel identifiers! for EXACT identification of providers. Channel numbers etc. freely programmable and extensible!
  • Up to 10! markers with frequency and level display.
  • Intuitive zoom control with very comfortable frequency adjustment.
  • High quality “waterfall”-display with TIMECODE. Colour scale freely configurable. Size freely scalable. Optional display of data DIRECTLY
  • ON TOP OF THE GRAPH by pointing with your mouse and CTRL-clikking!
  • High-resoution SLOT ANALYSER with 3D display!
  • SUPER-LOGGER: ALL data can be written to disk continuously. File format is readable by spreadsheet applications, for creating custom reports, etc.
  • Freely positionable windows for comfortable entry of frequency, RBW, sweeptime etc. etc.
  • Various pre-defined profiles for DECT, UMTS, GSM, WLan etc. etc. for instant recall. Incl. optimal parameters and extensive channel information! Freely programmable and extensible!
  • Independant main display with SIMULTANEOUS display of dBm, dBμV, V/m, W/m2 and A/m, each with AUTORANGE. Freely transposable and scalable.
  • SUPERB exposure limit display with various profiles (ICNIRP, Salzburg precautionary values, ECOLOG, etc. etc.). Freely programmable with a virtually infinite amount of display options.
  • Functionality to update SPECTRAN measurement device firmwares.
  • Freely programmable key assignments and labels for SPECTRAN measurement devices.
  • Filemanager and COMPILER for creation and management of YOUR OWN PROGRAMS for SPECTRAN measurement devices.
  • “Rename” option for renaming any of your SPECTRAN units (for example, including location) for better identification


Limits display:Limits Display

All SPECTRAN units offer a powerful limits display. Just push the limits button at our Spectrum Analyzer and the high-performance Digital Signal Processor (DSP) of the SPECTRAN constantly calculates the limits and displays the results in real-time. Spectrum analyzers with this high-end feature usually cost thousands of Euro. Just save this costs by using Aaronia analyzers.

EMC antenna included:

The shipment of each SPECTRAN includes a free EMC directional antenna which covers a wide frequency range.


All SPECTRAN units can be equipped with various options which highly expand the functionality.

Included in delivery:

Each SPECTRAN will be shipped with many accessories in a high-value aluminum carrying case.

  • RF Handheld Spectrum Analyser HF-4040
  • HyperLOG 7040 EMC measurement antenna
  • Pistol grip with mini tripod function
  • 1m SMA cable
  • SMA adapter (m/m)
  • SMA tool
  • SPECTRAN 1300mAh rechargeable battery (integrated)
  • Battery charger and power supply incl. international adapter set
  • Large aluminum carrying case with foam protection
  • Detailed English manual (on CD)
  • Analyzer software for MAC OS, Linux and Windows (on CD)

Aaronia Spectrum Analyser

Spectran Series

Aaronia Spectrum Analyser

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