Introducing the DG8SAQ VNWA 3 Low Cost 1.3 GHz Vector Network Analyzer

Covering 1 kHz to 1.3 GHz and powered from a PC USB-bus, the VNWA 3 offers a dynamic range of 90dB up to 500 MHz and better than 50dB above 500 MHz.

Designed by Professor Thomas Baier DG8SAQ, the VNWA 3 is used by Professionals, Universities, Research Institutes and Radio Amateurs worldwide since its launch in 2009.

VNWA Driver and Software runs on all recent Windows 64 bit and 32 bit Operating Systems, including Windows 10, 8.1 & 8, Windows 7 and Windows Vista. Software is free to download and updated regularly by the designer.

The DG8SAQ VNWA 3 offers:

  • All VNWA hardware on a single Printed Circuit board for maximum reliability

  • High stability 12 MHz TCXO from which all clock signals are obtained

  • Redesigned Solid 2mm Anodized enclosure and brass chassis

  • S-parameter, S11, S12, S21, S22, VSWR, Smith Chart & Component values

  • Time Domain - Distance to Fault Measurements - Network Matching tool

    • Supplied fully assembled and tested

    VNWA 3EC Expansion board - Optional USB Codec and External connectivity

    Factory fitted with Expansion board and external clock connection, the VNWA 3EC offers the following additional benefits:

    • Simultaneous S11 and S21 measurements in one Sweep

    • RJ12 socket to provide external VNWA control and VNWA power connectivity

    • Reduced Power consumption - DDS switched mode supply

    • External VNWA 3 Clock connectivity

    • VNWA Reference Clock output: TCXO 12 MHz*x (where x=2 3 4 5 ...8) stability  2ppm Output 1 kOhm impedance, 150mVpp

    • External Reference Clock input: Recommended external clock: 36 MHz with  a level of between -6dBm...+3dBm / 50 Ohms

    The Expansion board may be fitted retrospectively by VNWA 3 users with some electronic assembly skills:  VNWA 3 Expansion Board Manual

    For more details please see Specification for VNWA 3 and 3EC

    Customer Satisfaction & Support

    Customer Satisfaction has been a priority for us since the DG8SAQ VNWA was first launched in 2008

    We are keen to ensure that our Customers are able to make an informed choice about their VNWA purchase. Download and try out the DG8SAQ VNWA Software first before ordering.

    The VNWA software will start up without the VNWA hardware connected. This allows you to check-out the VNWA features and functionality and assess whether a purchase will meet your expectations.

    Every effort is made to make the VNWA easy and intuitive to use for new owners, but be prepared to "invest some time" to get familiar with the many uses and options of the VNWA 3 or 3EC. Take a look at the latest version of the 300+ page VNWA PDF helpfile.

    Ongoing Support of all our VNWA Customers

    SDR Kits is committed to supporting all our VNWA users, providing technical support, regular software updates and facilitating the DS8SAQ VNWA Forum.

    General Software updates for the VNWA 3 and the VNWA 3EC are made available several times a year. The same Software release is used to add new functionality to the VNWA 3 but also to the older VNWA 2.x if this can be supported by the VNWA 2.x hardware.

    It is recommended that you become a member of the DG8SAQ VNWA Forum, where VNWA announcements and VNWA user experiences are shared. You will have the benefit of useful information including advice when new software and helpfile updates are available for downloads.

    Technical support provided by Tom Baier, VNWA designer and Jan Verduyn, Director of SDR Kits Ltd, by e-mail.

     DS8SAQ VNWA sold with a 12 month return to base warranty.

     SDR Kits Ltd also provide a repairs service for out of warranty units.

    Authorized Distributors

    ICAS Enterprises

    SDR Kits Authorized Distributor of the DG8SAQ VNWA for Japan

    ICAS Enterprises

    DARC Verlag GmbH

    SDR Kits Authorized Distributor of the DG8SAQ VNWA for Germany

    DARC Verlag GmbH

    VNWA Models


    Custom designed Presentation Case available for storage of VNWA and Accessories

    See our range of VNWA Models

    VNWA 3 Automatic Installer

    VNWA 3/3EC comes with a VNWA Installer Package to get a new VNWA up and running with minimum of delay.

    The installer is downloaded from the SDR-Kits website to ensure the latest VNWA software and Helpfile are installed at all times.

    The installer supports Windows 10, 8.1, 8, 7 & Vista (64 and 32 bit OS) as well as Windows XP.

    VNWA Radcom Review

    Read DG8SAQ VNWA Radcom Review

    This article is copyright of the Radio Society of Great Britain (RSGB) and was originally published in their magazine RadCom.

    Reproduced here with their kind permission. www.rsgb.org

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