GNSS Correction Data Receiver (NEO-D9S) Hookup Guide

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Contributors: bboyho, PaulZC
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Troubleshooting

ThingStream PointPerfect L-band Reception

In order to receive the u-blox ThingStream PointPerfect correction data, you will need:

  • a suitable antenna
  • to be located within contiguous USA or Europe
  • to have a clear view of the sky to the South

SparkFun GNSS Multi-Band L1/L2 Surveying Antenna - TOP106

We have been successful using the SparkFun GNSS Multi-Band L1/L2 Surveying Antenna (TNC) - TOP106 (GPS-17751) antenna to receive PointPerfect correction data in both the USA and Europe.

GNSS Multi-Band L1/L2 Surveying Antenna - TNC (TOP106)

GNSS Multi-Band L1/L2 Surveying Antenna - TNC (TOP106)

GPS-17751
$133.95
15

Thingstream PointPerfect Coverage

The PointPerfect GNSS augmentation service is available on a continental scale with seamless coverage in Europe and contiguous USA, including up to 12 nautical miles (~ 22 km) off coastlines. u-blox are continuously expanding their coverage according to market demand.

L-Band Coverage

PointPerfect Service Coverage. (Click to enlarge)

As stated earlier, make sure to check back on u-blox's website to see if there is additional coverage in your region. Note that while they recently updated the coverage to support South Korea, it seems to be available over IP only. SPARTN correction messages does not appear to be listed under their topics for L-band reception yet. There are additional regions under consideration for the future but they have not been included yet for L-band reception.

PointPerfect Satellite Broadcast

PointPerfect augmentation data is broadcast from satellites covering Europe and contiguous USA. The satellites are in geostationary orbits over the equator - the same as for satellite television broadcasts. It is essential that your antenna has an unobstructed view of the sky, especially to the South where the satellite is positioned.

Depending on your latitude, the satellite for your area could be low in the sky. You need to ensure that trees, buildings etc. are not blocking the signal.