{"id":64400,"date":"2025-10-30T07:22:58","date_gmt":"2025-10-30T11:22:58","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=64400"},"modified":"2025-11-06T07:01:08","modified_gmt":"2025-11-06T11:01:08","slug":"an-introduction-to-wavviewdx-sdr-playback-software-a-totsuka-dxers-circle-article-by-kazu-gosui","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2025\/10\/an-introduction-to-wavviewdx-sdr-playback-software-a-totsuka-dxers-circle-article-by-kazu-gosui\/","title":{"rendered":"An Introduction to WavViewDX SDR Playback Software (A Totsuka DXers Circle Article by Kazu Gosui)"},"content":{"rendered":"

Many thanks to SWLing Post<\/em> contributor Nick Hall-Patch, who has kindly provided a translation of this article from the Japanese-language publication PROPAGATION<\/a> by the Totsuka DXers Circle (TDXC). In this piece, Kazu Gosui introduces WavViewDX, an impressive SDR file playback and analysis tool developed by Reinhard Wei\u00df of Germany.<\/strong><\/strong><\/p>\n

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About WavViewDX, SDR File Playback Software<\/b><\/h1>\n

by Kazu Gosui<\/strong><\/p>\n

Introduction<\/b><\/h2>\n

“WavViewDX,” developed by Reinhard Wei\u00df of Germany, is SDR file playback software. It maps the received signals from SDR-recorded files into bar graphs, with time on the vertical axis and frequency (channel) on the horizontal axis, for each of the following channel separations: medium wave (9\/10 kHz), short wave (5 kHz), and FM (50\/100 kHz).\u00a0 Clicking the cursor (blue crosshair) plays the received audio. By “visualizing the received signal” through mapping (see also the separate article by Satoshi Miyauchi), you can see at a glance the start and end times of broadcasts, fade in, fade out, channels you should listen to, and channels you don’t need to listen to.<\/p>\n

Basic Usage and Screen Description<\/b><\/h2>\n

First, download and install WavViewDX from the WavViewDX webpage (https:\/\/rweiss.de\/dxer\/tools.html<\/a>). The latest version is version was 1544 as of June 8, 2025, when this was written, but version 1662 is available in October 2025. When you launch WavViewDX, the Main Window (Figure 1<\/b>) will appear, showing Analysis View, the Operation\/Settings Panel, Logbook and Database.<\/p>\n

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Figure 1<\/p><\/div>\n

To play back recorded files, you must import them. Click Import to display the Import SDR Recording settings screen. Source files can be selected as single or multiple files, or by folder. Set the reception location, time, channel separation, etc., and begin importing. A progress percentage will appear, and green and white bar graphs will appear on the Analysis View screen. Hovering the cursor over a bar graph and clicking will display a red circle, and the audio recorded for that channel and time will play. Scrolling the mouse will allow you to zoom in and out of the Analysis View.<\/p>\n

When you import, a WVD format file is created. Once you’ve imported the files, you can simply load the corresponding WVD file at another time, and the files will be available to play immediately.<\/p>\n

In addition to Import and Load, the following settings are available at the top of the Main Window.<\/p>\n