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Decoding an ntrip source table, Source table header, Data stream record – Spectra Precision ProFlex 800 Reference Manual User Manual

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Other Procedures & Memos

• Nominal frequency: 5, 10 or 20 MHz

• Permitted deviation around nominal frequency: ± 1 ppm

Decoding an NTRIP Source Table

The NtripCaster maintains a source table containing
information on available NtripSources, networks of
NtripSources, and NtripCasters, to be sent to an NtripClient
on request.

Source-table records are dedicated to one of the following:

• Data STReams (record type STR)

• CASters (record type CAS)

• NETworks of data streams (record type NET)

All data fields in the source-table records are separated using
the semicolon character (;), as a field delimiter. When a semi-
colon is part of the content, it is quoted (“;”)

Source Table

Header

Server: /
Content-Type: text/plain
Content-Length:

gives the total size of the source-table
records (a decimal number of bytes).

The actual source-table records follow the header fields.

Data STReam

Record

Below is an example of a data stream record. The table below
describes the syntax used.

STR;BRUS0;Brussels;RTCM2.0;1(1),3(60),16;0;GPS;Misc;BEL;50.80;
4.36;0;0;Ashtech UZ-12;none;B;N;500;ROB

Record

Parameter

Meaning

Format

STR

Header for “data stream”

3 characters

BRUS0

Caster mountpoint

100 characters max.

Brussels

Source identifier, e.g. name of city next to source
location

Undefined number of
characters

RTCM2.0

Data format

Undefined number of
characters

1(1),3(60)

RTCM message types or raw data format. Update
periods in parenthesis, in seconds

Undefined number of
characters