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Release Notes

April 2022

This release, 3.3.2, follows the 3.3.0 release of earlier this month.
It contains a fix for a problem that is introduced when the Apple iOS version is upgraded to 15.4.1.

The Microsoft Windows version of Qastor has als been upgraded to 3.3.2 too, to keep all functionality in sync between de operating systems.

Getting Started

Go to the getting started page here.


iOS 15.4.1 induced crash

This release contains a fix to prevent the application from crashing whilst running the Apple iOS 15.4.1 version.

Embedded copy option

The example below shows some of the vessel definition settings.
The values in blue originate from the incoming AIS message.

Click on the blue value to update the setting.

Separate antenna offsets for AIS and GNSS

The vessel AIS GNSS antenna offset is now defined separately from the PPU Position Pod offset.

The position and heading pod section is only available for multi pod systems.
Standard 'pilot plugs' will typically only have the Pilot Plug AIS section.

Copy AIS offsets

Offset values from the incoming AIS message will be displayed in blue if it differs form the set values.
Click on the blue value to update the setting.

Use PPU base line to set the antenna offset

The baseline that is provided by the PPU device will be divided by two and shown in blue next to the centerline offset value when the heading location is either port or starboard.
If the heading antenna location is set to port side the value will be positive and if set to starboard it will be negative.
Click on the blue value to update the setting.

Multi Pod

Single Pod

Multi Pod vs Single Pod offsets

Multi Pod systems

Qastor will automatically switch between the vessel and the position pod antenna offset pending on the positioning mode.

The active antenna offset will be displayed on the vessel in the chart.
If the offsets are not set correctly of one or both systems, this might cause a jump in position if switching from one to the other positioning system!


OpenSeaMap is a worldwide open source project for visualisation of a free nautical database using OpenStreetMap data.

Go to the settings - chart preferences to enable the OpenSeaMap layer and set the opacity. (opacity 0% = 100% transparant)

Schelde estuary with S-57 ENC's and OpenSeaMap (opacity 70%)

The OpenSeaMap tiles are automatically buffered on the local harddrive whilst connected to the internet.
The buffered tiles are used when the internet connection is lost.