NextGen Combi Radar & Sonar



    Imagine, a radar and a sonar look at the same target. It can be a moving target, or a static one. Now you can look at both targets in the A-Scope and in the B-Scope. You will be able to play on filters to optimize the image. How does a sonar handle dynamic filtering (C-FAR), how does it detect moving targets.

    And then you can compare radar and sonar in a PPI-scope once they start rotating. It is a feeling like in a James Bond movie. However, for the first time, the learner sees PPI-Scope images from radar and sonar one after another.

    Going further, you can plunge the sonar sensor into a water basin and see how it performs there (radars are not operatable in water).

    The NextGen Pulse Radar is a true close range pulse radar with a range resolution better than 10 cm, a range up to 25 m and a pulse width of 0.5 nanno-seconds. The sonar sensor is a high resolution 115 KHz sensor with a range resolution of 0.5% of range. Both work well  until 25 m of distance.

    The system operates with the SkyRadar FreeScopes Software which provides many scopes (A-Scopes, B-Scopes, PPI), control interfaces and filters. Customers can start small and extend the application over time, just by purchasing and downloading additional modules in our portal. 

    The radar transceiver is mounted into the horn antenna and is to a parabolic reflector. Antennas and transceiver are connected to a microcomputer for Digital Signal Processing. The device can be placed on a rotary tripod. The sonar sensor is replacing the radar antenna / reflector in the same condition and angle (making sure it produces the sonar images of the same target as the radar.

    In addition, the sonar can be detached and placed into a water basin to operate under submarine conditions.

    Figure: detached sensor for underwater measurements

    This system has been developed for training and research in civil aviation, universities and industry. It does not include any special military feature. 


    Figure: Sonar image in B-Scope


    • Technical Key Features of the Radar

      • Range Resolution: better than 10 cm
      • Range: up to 25 m
      • Tx center frequency (ETSI): 7.29 GHz
      • Tx bandwidth (ETSI): 1.4 GHz
      • Pulse Width: 0.5 nsec
      • Peak Pulse output power (ETSI): -0.7 - 6.3 dBm
      • Max pulse repetition frequency. 40.5 MHz
      • Rx sampling rate: 23.3 GS/s
      • Rx gain (ETSI): 12.3 - 15 dB
      • Rx noise figure (ETSI): 5.4 - 8.8 dB
      • Operating Modes (enabled in the hardware)
        • Pulse
        • Doppler
    • Technical Key Features of the Sonar
      • Frequency: 115 kHz
      • Beam-width: 30 degrees
      • Minimum Range: 0.5 m, 1.6 ft
      • Maximum Range: 30 m, 100 ft
      • Range Resolution: 0.5% of range
      • Range Resolution at 30 m: 15 cm, 6 in
      • Range Resolution at 2 m: 1 cm, 0.25 in
    • Scopes for Radar and Sonar (enabled through FreeScopes) 

        •  A-Scope
        •  B-Scope
        • Plan-Position-Indicator (PPI)
        • Heatmap
        • 3D Scope


    The datasheet chapter on NextGen provides details on the complete solution. To get more details on the available packages please look at

    The FreeScopes applications in the combi unti get active in a plug-and-play approach, as soon as the radar on its own, or in conjunction with the SkyRadar CloudServer are plugged in.


    The following subjects can be trained with the system, depending on the included FreeScopes Packages (examples):

    • Experiments on Pulse and Emission Power on radar and sonar
    • Experiments on A-Scope, B-Scope and Plan-Position-Indicator (PPI)
    • Calibrating a radar and sonar using amplification, filters and settings
    • Experiments in a fixed position as well as through panning and rotation (rotary tripod required)
    • Doppler Effect (radar only)
    • Fast Fourier Signal Transformation (FFT) and its effects (radar only)
    • Clutter processing e.g., through Sensitive Time Control (STC), Threshold limitation or C-FAR for radar and sonar
    • Radar Cross Section (RCS) analysis allowing for an understanding of the varying detectability of objects based on material, absolute and relative size, reflection angle, distance and strength of the signal in radar and sonar
    • Allows analyzing performance and false alarm tolerances through adjustment of the sensitivity for radar and sonar
    • Adjustable decision threshold allowing for experiments on background noise for radar and sonar
    • Moving Target Indication for clutter elimination for radar and sonar
    • And much more.


    The PSR Base Module consists of:

    • one (1) Combi Radar & Sonar Module, including
      o   one (1) digital signal processing unit (DSP) / microprocessor in a steel-case
      o   one (1) radar transceiver with hardwired antennas mounted into a horn
      o   one (1) sonar sensor detachable and fixable to the horn
      o   one (1) motor control unit (only activated when rotary unit is added)
    • one (1) cable set.


    • Computer with latest HTML5 enabled browser. Current versions of Chrome, Firefox, MS Internet explorer, Opera and Safari are able to read HTML5.
    • SkyRadar FreeScopes (comes free with the SkyRadar Base Unit).


    As additional extension we can provide a water basin. However it is normally more economical to provide them from locally.



    The SkyRadar Combi Module is accessible by an unlimited amount of concurrent users. Also the broad coverage of solutions useful in ICAO and EuroControl ATCO and ATSEP training programs as well as IATA qualifications makes SkyRadar the preferred choice of many aviation academies and IATA TrainAir Plus accredited institutions. Also, many universities and military academies use the PSR Base Module within their qualification, education, training or research programs.

    PSR Base Module Data Sheet

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