Spectra Precision FAST Survey - Manual (Page 22)

English
14
These settings are detailed below.
Device:
The device used may be one of the following:
1. An internal or external radio transmitter. Corrections will
be broadcast through a UHF radio link.
2. An internal or external GSM modem. Corrections will be
broadcast through either a network connection, of the
NTRIP or Direct IP type (TCP/IP or UDP/IP), or a phone-
like connection, of the Direct Dial type (modem operated
in CSD mode). When a base delivers its corrections in
Direct Dial mode, you should provide the rover user with
the phone number allowing the rover to receive corrections
from the base.
Internal vs. external modems:
– With ProMark 220, the internal modem is located in
the GNSS receiver/data collector and the external one
in a third-party device.
– With ProMark/ProFlex 800, the internal modem is
located in the GNSS receiver – not in the data
collector– and the external modem is located either in
the data collector running FAST Survey, or in a third-
party device.
– With EPOCH 50, the GSM modem can only be
external, either coming as a standalone device, or
being part of the data collector used to configure the
base (although that means in that case that the data
collector should stay connected to the EPOCH 50
throughout the base operating session).
3. Another device connected to the data collector through a
cable connection. This may be any radio transmitter not
supported directly by FAST Survey.