Defining the data generated by a base – Spectra Precision ProFlex 800 Web Server User Manual

Page 42

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– RTK corrections delivered on port A, B or F

– Ethernet data streaming.

Defining the Data

Generated by a

Base

Depending on your application, you will have to define
different types of data messages as well as the ports through
which they will be delivered.

Three categories of output data are possible (NMEA,
differential and raw data) but only the use of differential and
raw data messages makes sense in a base.

To define differential data messages, click on

Data Output,

then on the

Differential Messages submenu. Use the page that

opens as explained below:

• All the message types pertaining to a given data format are

listed vertically. These are the following:

• To enable the output of a differential message, you just

need to enter the desired refresh rate (in seconds) for this
message in the corresponding field.

• Leaving a field blank means you don’t want the message

type to be output.

• For ATOM message types, you need to choose between the

different formats available (“Standard”, “Compact” or
“Super Compact”). Basically, the difference between the
three formats lies in the length (size) of the ATOM
messages generated.

Compared to the “Standard” format, “Compact” and
“Super Compact” will produce shorter messages for the
same message content. “Super Compact” will deliver even
shorter messages than “Compact”.

Basically, data compacting is achieved by lowering the
level of redundancy across messages. Through this

Format

Message types

ATOM
RNX

- Standard (4), Static Base
- Compact (100), Static Base
- Super-compact (101), Static Base
- Standard (204), Moving Base
- Compact (300), Moving Base

RTCM2.3

Message types: 1, 3, 9, 16, 18/19, 20/21, 22, 23, 24, 31, 32, 34,
36

RTCM 3.0
& 3.1

Message types: 1001-1013, 1019, 1020, 1029, 1033

RTCM 3.2 MSM1 to MSM7, 1230
CMR

Message types: 0, 1, 2, 3

DBEN

Ashtech legacy message

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