Deltad Systems Configuration; Hardware; Antennas Setup - Javad DELTAGNSS Receiver Operator's Manual

Configuration

DELTAD Systems Configuration

Hardware

3.2. DELTAD Systems Configuration
The DELTAD-G2 and DELTAD-G2D provide real-time position calculations and true heading
outputs at rates up to 50 Hz. The system DELTAD-G2 is a single frequency GPS/Galileo receiver
board. The system DELTAD-G2D adds second frequency to the processing.
DELTAD-G2 and DELTAD-G2D can also operate in the RTK or DGPS modes receiving
differential corrections from an external base station to provide differentially corrected position
and velocity.
In what follows, we do not distinguish between the two systems, so that the manual refers to both.
3.2.1. Hardware
The unit has two antenna inputs 'a' and 'b' as shown in the figure below. It can be considered as
two independent receivers. In this case the receivers will be denoted as 'a' and 'b' accordingly to
antenna inputs.
Antenna a
Antenna b
Figure 3-9. Back panel. Antenna connectors
Any of communication ports on the front panel (serial A and C, USB, Ethernet) can be used for
connection with the user. Another one can be set to receive differential corrections from the base
station.

3.2.2. Antennas setup

Antennas must be rigidly attached to the vehicle. There are no any special restrictions on their
mutual location. However, antennas should not shade each other. Also, inverse proportional
dependency of the error RMS on the between antennas distance should be taken into account.
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