Chapter 1

Introduction

Table 2 lists the models, each capable of multiple positioning modes of operation:

Table 2: GPS Positioning Modes of Operation

 

Modes of Operation a

 

 

DL-V3 Model

 

 

 

L1

RT20

L1/L2

RT2

HP/

VB

 

 

 

XP

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single point

¸

¸

¸

¸

¸

¸

 

 

 

 

 

 

 

 

 

 

Pseudorange differential corrections

¸

¸

¸

¸

¸

¸

 

 

 

 

 

 

 

 

 

 

RT20 pseudorange and carrier-phase double

 

¸

 

¸

¸

 

 

differencing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT2 pseudorange and carrier-phase double

 

 

 

¸

¸

 

 

differencing:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Post-processed RTK-type accuracy

¸

¸

¸

¸

¸

¸

 

 

 

 

 

 

 

 

 

 

OmniStar HP/XP

 

 

 

 

¸

 

 

 

 

 

 

 

 

 

 

 

OmniStar VBS and CDGPS

 

 

 

 

¸

¸

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a.For a discussion on Positioning Modes of Operation, please refer to the OEMV Family Installation and Operation User Manual.

1.2OPERATING MODES

The DL-V3 can either be controlled by a host computer or be set up for stand-alone operation.

Controlled Operation: A host computer can transmit logging parameters, receive collected data, and turn the DL-V3 on or off. Whenever the DL-V3 is connected to a power source (regardless of whether the DL-V3 is turned “on” or “off”), it detects if there is a host computer connected to one of its serial ports. If a host computer is found, and there is serial port activity from a host computer to the DL-V3, the DL-V3 powers up. If the DL-V3’s predefined POWERUP group, see also Section 4.2.1, Receiver Groups on Page 57, exists in the DL-V3, the DL-V3 runs the POWERUP group, otherwise the DL-V3 begins to search for satellites and waits for commands from the host computer.

Only specific serial ports have wake-up capability on data activity. For example, the USB, Ethernet or Bluetoothports do not.

Stand-Alone Operation: Once the DL-V3 receives configuration commands from a host computer, it operates according to these parameters. For example, data collection can be configured in advance by setting up a group to repeat continually.

Refer also to the OEMV Family Installation and Operation User Manual for information on receiver communications and operation.

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DL-V3 User Manual Rev 3

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Novatel Chapter Introduction, GPS Positioning Modes of Operation, Modes of Operation a DL-V3 Model RT20 L1/L2