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Loud Bang

RX/TX capable WSPR client
New in version 0.43
Notifications are now silent
(but still make sure you disable all sounds except selected output source)
About window crash fixed
First WSPR client for android that can not only transmit beacon signals using phone's audio output, but also receive and decode beacons using phone's audio input.

It can use device's camera flash to trigger yout radio's transmit circuitry, GPS to automaticaly update your GRID location the app transmits, and network to send received packets to wsprnet.org.

Most of permissions are not required if those features are disabled in settings (which are disabled by default).

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Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 0.43 (43) suggested Added on 2021-07-31

    This version requires Android 4.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • record audio
      This app can record audio using the microphone at any time.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • run foreground service
      Allows the app to make use of foreground services.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 5.6 MiB PGP Signature | Build Log

  • Version 0.42 (42) - Added on 2021-07-10

    This version requires Android 4.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • record audio
      This app can record audio using the microphone at any time.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • run foreground service
      Allows the app to make use of foreground services.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 5.6 MiB PGP Signature | Build Log

  • Version 0.41 (41) - Added on 2021-03-14

    This version requires Android 4.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • record audio
      This app can record audio using the microphone at any time.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • run foreground service
      Allows the app to make use of foreground services.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 4.7 MiB PGP Signature | Build Log