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How can I get better positional accuracy?

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The wide area augmentation systems only improve the positional accuracy by a small amount. To get a significant improvement in positional accuracy, you will need to set up your own local Base Station. A local Base Station is a portable unit that will transmit local DGPS corrections via radio over short distances. There are currently three levels of accuracy improvement available with VBOX products when using a Base Station:

 

  • 40 cm RTCM available to all VBOXII and VBOXIII products.
  • 20cm proprietary correction only available to upgraded VBOXIIS and VBOXIISX units.
  • 2 cm RTK proprietary correction only available on RTK enabled VBOX3 units.

 

 

  SBAS (WAAS / EGNOS) DGPS

RTCM 40 cm 

95 % CEP DGPS
(VBBS4 and VBBS4RG)

20 cm 95 % CEP DGPS
(VBBS4 only)
RL 2 cm 95 % CEP RTK
(VBBS4RG only)
2 cm 95 % CEP RTCMv3 or CMR
(VBBS4RG only)
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VBOX IIS GREEN.png GREEN.png YELLOW.png RED.png RED.png

VBOX IISX (5 Hz, 10 Hz & 20 Hz)

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VBOX 100 Hz Speed Sensor

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VBOX 100 Hz R10G10 Speed Sensor

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VBOX IISX 20 Hz Speed Sensor GREEN.png GREEN.png YELLOW.png RED.png RED.png
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Key:   GREEN.png   = Compatible       YELLOW.png = Compatible with upgrade     RED.png = Not compatible

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