Latest software updates, Help files and User Guides

VNWA Software Downloads

Current VNWA General Release Installer Application: VNWA Installer.exe

The link above is to the 36.8.0 General VNWA Release published December 2022 for the VNWA 3, 3EC & also the VNWA 2. The installer includes helpfile, drivers, and firmware for Microsoft Windows 11, 10, 8.1 and Windows 7 32 bits and 64 bits versions. To check whether the downloaded VNWA-installer.exe file is genuine and not corrupted, obtain and compare the MD5, SHA1 and SHA256 hash values with the values shown:

36.8.0 hashes.txt File

SHA1 Hash MD5 Hash CRC-32 report of VNWA-installer.txt v36.7.9.txt

The SHA1 hash can be obtained by executing the following command in a Windows shell on the downloaded file:

certutil -hashfile VNWA-installer.exe SHA1. Please note that the VNWA-installer.exe has been submitted to 'Virus Total' and passed. You can submit the file yourself or download this report for latest update 9th March 2020.

VersionInfo.txt - Provides Version info on the current General Release software above and also on VNWA beta (pre-release) software

Windows Winhlp32 Installer bulletin This file is required to view the online VNWA helpfile in the VNWA Software Application

List of Changes in the VNWA Helpfile 36.7.9 published 9  March 2020 since previous version

Link to information on VNWA 36.8.x Linux Installation  information

Latest VNWA Beta Software updates for the VNWA 3 are announced on the DG8SAQ VNWA Forum and are downloadable from

Installation Manuals & Help Files


VNWA 3SE 3E 3 Installation Manual    A Getting Started Manual for Release 36.7.2 onward. This is the same information as in the printed manual shipped with all new VNWAs after 15 February 2018.

NEW VNWA_Help.pdf This is a 500+ page VNWA Help File Documentation in PDF format - English Language for Version 36.8.1 published May 10th 2023 - This is a pdf version of the latest VNWA helpfile which is accessible within the VNWA Application.

NEW Windows 11 measurement error - "no sync" bug after installation:    Check tab Sound: USB Codecs Advanced properties tab and make sure Audio Enhancements are disabled.

VNWA Sound Devices error after Windows10 Upgrade Since October 2017 Microsoft has started to upgrade the Windows 10 Operating Systems on Windows Computers Worldwide to new feature release 1703 Creative. A number of VNWA users have found that one or both USB Codecs are no longer visible after starting the VNWA Application and the VNWA fails to operate. The reported error is “No VNWA sound devices detected".  This error occurs because the Win10 upgrade disables the USB Codecs.

Download this Bulletin which shows how to re-enable the USB Codec Sound devices if these devices are not shown after the upgrade

Windows 10 Privacy Settings blocking VNWA USB Codec Operation. This problem has been reported by a number of VNWA users after upgrade of Windows 10 to version 19.03.

VNWA 36.7.x  Upgrade Bulletin for VNWA Upgrade, configuration and Calibration and other Information.

The following Application notes cover the two basic VNWA measurements (both are included from the VNWA Helpfile):

1. VNWA One Port Measurements (TX Port only step by step example of antenna)

2. VNWA Two Port Measurements (TX and RX port step by step example of filter)


Windows 7 & XP VNWA 3 - 3E installation Manual pdf Getting Started Manual v2.01 Issue, as supplied with VNWA 3 and 3E up to 30 September 2014.

VNWA2 Installation Manual pdf Getting Started Manual for previous model VNWA for W7, XP & Vista.

Tutorials & Links

Video tutorials by Kurt Poulsen OZ7OU aimed at new VNWA users:

You can also view the above 3 videos direct from Kurt's Website in event viewing YouTube videos is not possible:

VNWA DG8SAQ Designer Prof. Dr. Thomas Baier:

Other Tutorials:

Documentation in Other Languages

VNWA Dokumentation in deutscher Sprache

Anleiting Embedding - PortExtension Funktion - von Tom Baier - ein wichtige neue VNWA Feature in

VNWA3/3E "Getting Started Manual" für Windows 10, Windows 8.18 & Windows 7  für 36.7.9 aufwärts mit Dank an Manfred Zillmer DG3OK

VNWA Hilfe 36-7-0 deutsch Marz 2020 - Vielen Dank an Manfred Zillmer DG3OK für diese VNWA Informationen auf Deutsch zu übersetzen.

Windows 10 Datenschutzeinstellungen blockieren VNWA USB Sound Codec(s) - Problem gemeldet nach Upgrade Windows 1903

Einsteiger Buch "Messen mit dem Vektor-Netzwerkanalysator VNWA" von Gerfried Palme. Kaufen von FunkAmateur

Fortgeschritten Buch "Messen mit dem Vektor-Netzwerkanalysator VNWA Band 2" von Gerfried Palme. Derzeit ist VNWA Band 2 nur in deutscher Sprache dieses deutschen Verkäufers erhältlich:

FunkAmateur und

Darc Verlag

VNWA Kalibration Mit dank am Fred Schneider - (Dec 2012)


Documentation Manuale Italiano

DG8SAQ VNWA V36.2.6 Manuale PDF en Italiano 2013Molto Grazie a Fede IK2TYP per questa traduzione

Documentacion en Espanol

VNWA 3 Installation Documentacion (VNWA 3 Getting Started Guide 2010)

Calibracion del VNWA 3 (Section from VNWA Helpfile 2010)

Muchos Gracias a Jose Antionio EA7BIA

Caution: The information in the older translations may be out of date or superceded. If in doubt consult the latest English language files

Video presentation by Tom Baier DG8SAQ

Workshop Presentation by VNWA Designer on updated VNWA features

With an introduction from SDR Kits' stand by Jan Verduyn G5BBL of SDR Kits. Thanks to Kurt Poulsen OZ7OU who produced this video


VNWA Accessories

Incl test components
VNWA Testboard Kit (Includes Test Components)

VNWA Testboard Kit (Includes Test Components)

£12.90 incl VAT: £15.48

Indicative prices in EURO €14,96

Indicative prices in USD $16.38

New Product
SMA 8mm/.315" Torque Wrench 8mm 0.5Nm Xite made in Taiwan (economic model)

SMA 8mm/.315" Torque Wrench 8mm 0.5Nm Xite made in Taiwan (economic model)

£23.75 incl VAT: £28.50

Indicative prices in EURO €27,55

Indicative prices in USD $30.16

BNC Bracket for use with DG8SAQ VNWA 3 and 3EC

BNC Bracket for use with DG8SAQ VNWA 3 and 3EC

£25.50 incl VAT: £30.60

Indicative prices in EURO €29,58

Indicative prices in USD $32.38