4.2. USING FUGRO MARINESTAR L-BAND PPP CORRECTION DATA WITH THE ASTERX-U MARINE FG
4.2 Using
Fugro
Marinestar
L-band
PPP
correction data with the AsteRx-U MARINE
Fg
PPP (Precise Point Positioning) is high-accuracy positioning without the need for a local base
station. PPP uses precise satellite clock and orbit corrections computed by a global network
of reference stations and broadcast in real time by geostationary satellites transmitting in
the L-band. To receive PPP correction data, your receiver will need to be connected to an
L-Band capable antenna
. The AsteRx-U MARINE Fg can use PPP correction data from the
Fugro Marinestar service as described in the steps below.
Step 1: Check you have PPP permissions on your AsteRx-U
MARINE Fg
The use of PPP services is permission-
fi
le controlled on the AsteRx-U MARINE Fg. You can
make sure that you have PPP permissions enabled on the
About
page selected from the
Admin
menu. Click on
Permitted Capabilities
and scroll down the list of permissions:
PPP
and
Augmented Data Svc
should appear as permitted as shown in Figure 4-15.
Figure 4-15:
Check that PPP is enabled in the AsteRx-U MARINE Fg permission
fi
le
1
Please note that PPP correction data is also available over an Ethernet connection using NTRIP and for this,
an L-Band antenna is not required
45