NTRIP Configuration

NTRIP (Network and Transport of RTCM via Internet Protocol) is a protocol that enables the transmission of RTK (Real-Time Kinematic) corrections over the internet to GNSS (Global Navigation Satellite System) receivers.

NTRIP caster parameters can be configured in client mode (receiving corrections) or server mode (sending corrections).

Several parameters, which can be listed using the “Sl” command (“S” for device Settings, “l” for list), allow configuration of the selected mode.

Important

These settings are defined and saved at the GEOSTIX level and are independent of the connected 4G/LTE layer. If the 4G/LTE module is changed, the behavior in server or client mode (and MQTT) will be retained.

cmd Sl

>Sl
'l' subcommands:
  mqttPassword=""
  mqttUsername=""
  mqttPort=0
  mqttHostname=""
  mqttEnabled=FALSE
  ntripServerAuthParams=""
  ntripServerMountpoint=""
  ntripServerCasterPort=0
  ntripServerCasterHostname=""
  ntripServerCasterVersion=0
  ntripServerEnabled=FALSE
  ntripClientSendPositionToCaster=FALSE
  ntripClientAuthParams=""
  ntripClientMountpoint=""
  ntripClientCasterPort=0
  ntripClientCasterHostname=""
  ntripClientCasterVersion=0
  ntripClientEnabled=FALSE
+OK
>

NTRIP Client Mode Configuration

To enable a GEOSTIX to receive corrections from a remote caster, configure all parameters containing “client” using the command:

Ss <PARAMETER_NAME> <VALUE>

Then save the settings with:

SS

The GEOSTIX should respond with OK.
You can verify the configuration again using Sl.
Changes require a device restart to take effect (via Hr or the On/Off button on the mobile base).

PARAMETER	VALUE	Default
ntripClientSendPositionToCaster	if using a virtual base	FALSE
ntripClientAuthParams	authentication parameters	""
ntripClientMountpoint	mountpoint from which to receive corrections	""
ntripClientCasterPort	caster port, usually 2101	0
ntripClientCasterHostname	IP or domain of the caster	""
ntripClientCasterVersion	NTRIP version 1 or 2	0
ntripClientEnabled	1 to enable client mode, 0 to disable while keeping the settings	FALSE

ntripClientAuthParams

Authentication parameters, in the format username:password, must be base64-encoded.

For example, for username bonjour and password 12345, the base64-encoded string bonjour:12345 (using a site like this one) is: Ym9uam91cjoxMjM0NQ==.

Example for connecting to the Centipède caster:

Authentication is optional, but you may use centipede:centipede, encoded as Y2VudGlwZWRlOmNlbnRpcGVkZQ==

Ss ntripClientSendPositionToCaster FALSE
Ss ntripClientAuthParams Y2VudGlwZWRlOmNlbnRpcGVkZQ==
ou sans authentification :
Ss ntripClientAuthParams
Ss ntripClientMountpoint NEAR
Ss ntripClientCasterPort 2101
Ss ntripClientCasterHostname caster.centipede.fr
Ss ntripClientCasterVersion 2
Ss ntripClientEnabled 1
SS

NTRIP Server Mode Configuration

To enable a GEOSTIX to send corrections, configure all parameters containing “server” using the command:

Ss <PARAMETER_NAME> <VALUE>

Then save the settings with:

SS

The GEOSTIX should respond with OK.
You can verify the configuration again using Sl.
A restart is required for the changes to take effect (via Hr or the On/Off button on the mobile base).

PARAMETER	VALUE	Default
ntripServerAuthParams	authentication parameters	""
ntripServerMountpoint	mountpoint from which clients will receive corrections	""
ntripServerCasterPort	caster port, usually 2101	0
ntripServerCasterHostname	IP or domain of the caster	""
ntripServerCasterVersion	NTRIP version 1 or 2	0
ntripServerEnabled	1 to enable server mode, 0 to disable while keeping the settings	FALSE

ntripServerAuthParams

In NTRIP version 1, only the password is required and must be in plain text (no username).

In NTRIP version 2, you must provide a username:password pair, encoded in base64, just like in client mode.

For example, for username bonjour and password 12345, the base64-encoded string bonjour:12345 is: Ym9uam91cjoxMjM0NQ==.

So in NTRIP v1, use: Ss ntripServerAuthParams 12345 and in v2: Ss ntripServerAuthParams Ym9uam91cjoxMjM0NQ==