Mapping and GIS Solutions Community

With a DA1 antenna, I can request a 5Hz update rate when using an autonomous or SBAS solution using the following code:

Once I've started a survey using RTX, 5Hz solutions seem to be available unless the app has to fallback to SV-based delivery of these corrections.  In that case, the solution rate is reduced to 1Hz.  Is there any work around for this?

Hi,

I did some brief testing and can confirm the reported behavior.

So turning on 5Hz via the Positioning interface (via something like this in java)

ISsiPositioning ssiPositioning = (ISsiPositioning) sensor.getInterface(SsiInterfaceType.SsiPositioning);
if (ssiPositioning != null) {

    PositioningSettings posSettings = new PositioningSettings();

    if (ssiPositioning.isSupported(PositioningParameterType.PositionRate)) {
        IPositioningParameterRate posRate = (IPositioningParameterRate) ssiPositioning.createPositioningParameter(PositioningParameterType.PositionRate);
        posRate.setRate(PositionRate.FiveHz);
        posSettings.add(posRate);
    }

    ssiPositioning.addPositionListener(positionListener);
    ssiPositioning.startPositioning(posSettings);
}

Results in a 5Hz output UNTIL you fall back from RTK to RTX SV.

Both RTX streams provide 1Hz only (IP and SV).

I can't say at the moment if this is an issue in the SDK layer or the engine layer. So we'll do a bit of digging.

Doing the same with a traditional receiver works by the way. So an R10 provides an 5Hz RTX stream.