• Edit
• History
• Print
• Download (.HTML)
• PDF

SelectionOfGNSSCorrectionSource-SPEED100 / UsingInternetConnection

Corrections via Internet and NTRIP / RT Base station

Quick Checklist

• Ensure that the SPEED100 has the RTK license
• If not previously done, register the SPEED100 on an RT Cloud account
• Configure the SIM card setup for the SPEED100 allow internet data
• Sign up to an NTRIP service that can supply RTCM v3.x corrections valid for your location or have a Race Technology Base station set up to provide corrections
• Ensure a 4G LTE antenna is connected to the SPEED100.
• Ensure the SPEED100 is using the supplied dual frequency GPS+GLONASS antenna.
• Ensure a data-capable SIM card is inserted in the SIM card slot on the rear of the SPEED100.

Full Instructions

Before the RT SPEED100 can be used it must be registered to an RT Cloud account. For details on how to do that see here:
RTCloud AccountPage (race-technology.com)

The SPEED100 must also be configured to get corrections from either an NTRIP service or a base station, this is set on the RT Cloud server in the accounts page:

No specific configuration is required to get corrections over the internet for the SPEED100, if they are available they will be used.

NOTE 1: It is important that a 4G LTE antenna is connected to the SPEED100 whenever the unit is powered on. If this is not done, then the 4G LTE module may increase the power draw in an attempt to compensate, resulting in excess current consumption from the power supply, and reduced GNSS performance due to increased interference.

It is necessary to insert a data-capable SIM card (standard size) into the labelled SIM slot on the front of the SPEED100. In most cases, no explicit configuration of the SIM card settings is required; the data SIM will simply connect automatically through it’s built in settings. If it is necessary to configure the SPEED100 to match your SIM providers settings then please refer to this link.

It is also necessary to subscribe to a provider of internet based corrections, which are provided through a protocol known as an NTRIP caster. There are free NTRIP casters available, but in our experience satisfactory operation has only been attained through subscribing to a paid professional service. It is necessary to carefully configure the SPEED100 to match the NTRIP caster settings supplied by your provider: full details on how to configure this can be found here.

Alternatively, a Race Technology Base station can be used to provide corrections. Configuration details for this can be found on this link.

Following these steps, the SPEED100 should achieve integer RTK differential lock (full accuracy) as long as adequate 4G LTE reception is available, and the SPEED100 has a clear view of the sky and is using the supplied dual frequency GPS+GLONASS antenna. To verify correct operation, check the position accuracy data on the LCD.

Typically, once differential lock has been attained, the SPEED100 will retain differential operation as long as GSM dropouts do not exceed more than approximately 30s in duration.