NovAtel Application Note
APN-048 Rev 3
ALIGN Application Note
page 4 of 10
In this setup, connect COM2 of the Rover receiver to one of the available COM ports on the Master
receiver using a NULL modem cable. There are two possible ways to set up this use case. One uses
ALIGN’s plug and play functionality and another requires manual receiver configuration.
Plug and Play with Cable
3
:
1.
Connect COM2 of the Rover receiver to an available COM port on the Master receiver using a
NULL modem cable
2.
Initiate ALIGN from the Rover receiver by entering the following command:
ALIGNAUTOMATION ENABLE COM2 230400
3.
To access heading data, ALIGN logs can be logged at either the ALIGN Master or Rover.
Manual Configuration with Cables:
You can also manually configure communication between the Master and Rover receivers.
1.
Connect any COM port on the Master receiver (ie. COM2) to any COM port on the Rover receiver
(ie. COM2) using a NULL modem cable
2.
Issue the following commands to the Master:
MOVINGBASESTATION ENABLE
INTERFACEMODE COM2 NOVATEL RTCA OFF
COM COM2 230400 N 8 1 N OFF ON
LOG COM2 RTCAOBS3 ONTIME 0.1
LOG COM2 RTCAREFEXT ONTIME 0.1
3.
Issue the following commands to the Rover
INTERFACEMODE COM2 RTCA NOVATEL OFF
COM COM2 230400 N 8 1 N OFF ON
LOG COM2 HEADINGEXTB ONNEW
4.
To access heading data, ALIGN logs can be logged at either the ALIGN master or rover.
3.2
Use Case 2:
Master and Rover Receivers on Separate Moving Platforms (ALIGN
Relative Positioning)
This use case requires one Master and one Rover receiver. Figure 2 illustrates the Master receiver on the
vessel and the Rover receiver located on the fighter jet. Relative heading, pitch, baseline length and Rover
positions are computed with respect to the Master receiver.
3
To use plug and play, the Master and Rover receivers must be running firmware versions 3.900/OEM060100RN0000 or higher.
