RTCM Source

Node ID: RTCM · Role: Source · Realtime config: no

Description

RTCM correction source for RTK-GNSS. Connects to an NTRIP caster, receives differential corrections, and forwards them to a GNSS receiver for centimeter-level positioning.

Inputs / Outputs

Inputs: Gnss
Outputs: Rtcm

Config aliases

RtcmSource, rtcmSource, RTCM, NtripSource, ntripSource

Properties

No user-facing properties.

Subtypes

Value	Display name	Extra properties
`ntrip`	NTRIP	12 field(s)

Subtype: `ntrip` — NTRIP

Key	Label	Type	Default	Description / Notes
`host`	Host	`string`	`192.168.1.1`	NTRIP caster hostname or IP.
`port`	Port	`number`	`2101`	NTRIP caster TCP port (typically 2101).
`mountpoint`	Mountpoint	`string`	`mountpoint`	NTRIP mountpoint providing the RTCM correction stream.
`user`	User	`string`	`user`	Username for the NTRIP caster.
`password`	Password	`string`	`password`	Password for the NTRIP caster.
`userAgent`	User Agent	`string`	`LPVR-POS`	User-Agent header sent in the NTRIP request.
`forwardGnss`	Forward GNSS	`boolean`	`false`	Forward GGA sentences from the connected GNSS source to the caster (required for VRS / network-RTK).
`initialLatitude`	Initial Latitude	`number`	`0.0`	Initial latitude in the first GGA sent to the caster, before a live fix is available.
`initialLongitude`	Initial Longitude	`number`	`0.0`	Initial longitude in the first GGA sent to the caster.
`initialDelayMs`	Initial Connect Delay (ms)	`number`	`500`	—
`accountConflictDelayMs`	Account-conflict Backoff (ms)	`number`	`30000`	—
`verboseLogging`	Verbose Logging	`boolean`	`false`	—

Example node definition

A full node definition in config.json looks like the block below. Paste it under the sources key of your config, keyed by the node’s instance name (any identifier; it doesn’t have to match the node ID).

{
  "sources": {
    "RTCM": {
      "outEndpoint": "inproc://RTCM_data",
      "type": "ntrip",
      "settings": {
        "host": "192.168.1.1",
        "port": 2101,
        "mountpoint": "mountpoint",
        "user": "user",
        "password": "password",
        "userAgent": "LPVR-POS",
        "forwardGnss": false,
        "initialLatitude": 0.0,
        "initialLongitude": 0.0,
        "initialDelayMs": 500,
        "accountConflictDelayMs": 30000,
        "verboseLogging": false
      }
    }
  }
}

Field reference

Field	Purpose
`outEndpoint`	ZMQ / inproc endpoint this source binds to publish its output. The runtime auto-generates one if omitted.
`type`	Subtype / backend selector. See the Subtypes section above for valid values.
`settings`	All user-configurable fields — see the Properties table above.

Connections can also be declared at the top-level connections array when settings.explicitConnections is true, as an alternative to filling inputEndpoints on each node.

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