NavCom RT-3020 User Manual Rev.D
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NavCom Technology, Inc.
20780 Madrona Avenue
Torrance, CA 90503
USA
Tel: +1 310.381.2000
Fax: +1 310.381.2001
sales@navcomtech.com
www.navcomtech.com
RT-3020 User Guide - Rev. E
Table of Contents
Table of Contents................................................. i
Notices.................................................................. ii
Chapter 1 Introduction.................................... 7
System Overview..................................................... 7
Applications .......................................................... 11
Unique Features .................................................... 11
Chapter 2 Interfacing..................................... 13
Electrical Power ..................................................... 13
Communication Ports............................................15
Indicator Panel ......................................................17
1 PPS..................................................................... 20
CAN Bus/Event...................................................... 20
Chapter 3 Installation .................................... 22
Tri-Mode Antenna ................................................. 22
GPS Sensor............................................................ 24
Communication Ports............................................27
GPS Antenna Connector........................................ 28
Chapter 4 Configuration................................ 30
Factory Default Settings.........................................30
Advanced Configuration Settings........................... 33
Chapter 5 Safety Instructions ........................ 34
FCC Notice............................................................ 34
Transport .............................................................. 34
Maintenance ......................................................... 35
External Power Source ........................................... 35
Safety First............................................................. 35
A
GPS
Sensor Technical Specifications ......... 37
RT-3020S and RT-3020M ...................................... 37
B GPS Antenna Technical Specifications ...... 43
L1+L, L2 GPS Antenna ......................................... 43
C Event Input Configuration ......................... 45
Glossary............................................................. 47
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RT-3020 User Guide - Rev. E
Notices
RT-3020
P/N
Revision E August 2005
Serial Number:
Date Delivered:
GPS
Products User Guide
96-310005-3001
Copyright
2002 by NavCom Technology Inc.
All rights reserved. No part of this work or the computer
programs described herein may be reproduced or
stored or transmitted by any means, without the
written permission of the copyright holders. Translation
in any language is prohibited without the permission of
the copyright holders.
Trademarks
The ‘find your way’, ‘NavCom Globe’ and NAVCOM
TECHNOLOGY logos are trademarks of NavCom
Technology, Inc.
Deere & Company. All other product and brand names
are trademarks or registered trademarks of their
respective holders.
StarFire
is a registered trademark of
FCC Notice
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
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RT-3020 User Guide - Rev. E
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
User Notice
NAVCOM TECHNOLOGY, INC. SHALL NOT BE
RESPONSIBLE FOR ANY INACCURACIES, ERRORS, OR
OMISSIONS IN INFORMATION CONTAINED HEREIN,
INCLUDING, BUT NOT LIMITED TO, INFORMATION
OBTAINED FROM THIRD PARTY SOURCES, SUCH AS
PUBLICATIONS OF OTHER COMPANIES, THE PRESS, OR
COMPETITIVE DATA ORGANIZATIONS.
THIS PUBLICATION IS MADE AVAILABLE ON AN “AS IS”
BASIS AND NAVCOM TECHNOLOGY, INC.
SPECIFICALLY DISCLAIMS ALL ASSOCIATED
WARRANTIES, WHETHER EXPRESS OR IMPLIED. IN NO
EVENT WILL NAVCOM TECHNOLOGY, INC. BE LIABLE
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IN CONNECTION WITH
THE USE OF OR RELIANCE ON THE MATERIAL
CONTAINED IN THIS PUBLICATION, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES. NAVCOM
TECHNOLOGY, INC. RESERVES THE RIGHT TO MAKE
IMPROVEMENTS OR CHANGES TO THIS PUBLICATION
AND THE PRODUCTS AND SERVICES HEREIN
DESCRIBED AT ANY TIME, WITHOUT NOTICE OR
OBLIGATION.
Limited Warranty
NavCom Technology, Inc., warrants that its products
will be free from defects in workmanship at the time of
delivery. Under this limited warranty parts found to be
defective or defects in workmanship will be repaired or
replaced at the discretion of NavCom Technology, Inc.,
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RT-3020 User Guide - Rev. E
at no cost to the Buyer, provided that the Buyer returns
the defective product to NavCom Technology, Inc. in
the original supplied packaging and pays all
transportation charges, duties, and taxes associated
with the return of the product. Parts replaced during
the warranty period do not extend the period of the
basic limited warranty.
This provision does not extend to any NavCom
Technology, Inc. products, which have been subjected
to misuse, accident or improper installation,
maintenance or application, nor does it extend to
products repaired or altered outside the NavCom
Technology, Inc. production facility unless authorized in
writing by NavCom Technology, Inc.
THIS PROVISION IS EXPRESSLY ACCEPTED BY THE
BUYER IN LIEU OF ANY OR ALL OTHER AGREEMENTS,
STATEMENTS OR REPRESENTATIONS, EXPRESSED OR
IMPLIED, IN FACT OR IN LAW, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE AND OF ALL
DUTIES OR LIABILITIES OF NAVCOM TECHNOLOGY,
INC. TO THE BUYER ARISING OUT OF THE USE OF THE
GOODS, AND NO AGREEMENT OR UNDERSTANDING
VARYING OR EXTENDING THE SAME WILL BE BINDING
UPON NAVCOM TECHNOLOGY, INC. UNLESS IN
WRITING, SIGNED BY A DULY-AUTHORIZED OFFICER
OF NAVCOM TECHNOLOGY, INC.
This limited warranty period is one (1) year from date of
purchase.
iv
RT-3020 User Guide - Rev. E
USG FAR
Technical Data Declaration (Jan 1997)
The Contractor, NavCom Technology, Inc., hereby
declares that, to the best of its knowledge and belief,
the technical data delivered herewith under
Government contract (and subcontracts, if appropriate)
are complete, accurate, and comply with the
requirements of the contract concerning such technical
data.
Global Positioning System
Selective availability (S/A
2000 at 04:05
stated that present
The US Government may at any time end or change
operation of these satellites without warning.
The U.S. Department of Commerce Limits
Requirements state that all exportable
contain performance limitations so that they cannot be
used to threaten the security of the United States.
Access to satellite measurements and navigation results
will be limited from display and recordable output
when predetermined values of velocity and
exceeded. These threshold values are far in excess of
the normal and expected operational parameters of the
RT-3020
GPS
UTC
sensor.
code) was disabled on 2nd May
. The United States government has
GPS
users do so at their own risk.
GPS
products
altitude
are
Use of this Document
This User Guide is intended to be used by someone
GPS
familiar with the concepts of
equipment.
and satellite surveying
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RT-3020 User Guide - Rev. E
Note indicates additional information to make
better use of the product.
a Indicates a caution, care, and/or safety situation.
0 Warning indicates potentially harmful situations.
Items that have been
acronym that can be found in the Glossary.
Revisions to this User Guide can be obtained in a digital
format from
support.navcomtech.com
ITALICIZED
indicate a term or
vi
RT-3020 User Guide - Rev. E
Chapter 1 Introduction
The RT-3020
to the precise positioning community who need a
cost-effective, high performance
unique receiver can transmit or receive corrections via
an onboard
GPS
sensor delivers unmatched accuracy
GPS
sensor. This
Spread Spectrum Radio (SSR)
.
System Overview
GPS
Sensor
The RT-3020 sensor consists of a 24-channel dual
GPS
frequency precision
channels for receiving
System (SBAS)
proprietary raw data as fast as 50Hz (optional) and
signals. The sensor can output
Position Velocity Time (PVT)
(optional) through two 115
software provides fast initialization. Testing shows that
the system resolves ambiguities at start-up or on
reacquisition of satellites typically within two seconds.
receiver with two additional
Satellite Based Augmentation
data as fast as 25Hz
kbps
serial ports. The
RTK
The RT-3020 has a built-in
providing an immediate solution for the system
integrator and real time surveyor. Utilizing the built in
radio for
communicate using NavCom’s highly efficient
proprietary
RTCM
simultaneously accept corrections for
(
WAAS/EGNOS
The RT-3020S is packaged for mobility. It can be used
for construction stakeout, boundary surveys, high order
control surveys and topographic surveys in rough
RTK
measurements, the receivers
RTK
format or other
and CMR. Additionally, the receivers
) assuring seamless position output.
Spread Spectrum Radio
RTK
formats, such as
DGPS
1-7
RT-3020 User Guide - Rev. E
terrain. The sensor can be carried in a backpack with
the antenna either pole-mounted from the backpack or
on a survey pole with a single cable connection.
The RT-3020M is a
specifically designed for machine control applications in
construction, agriculture, mining and many other fields.
It is equipped with additional features allowing
interconnectivity with a wide variety of antennas,
vehicle data buses and other instrumentation to suit
specific applications and configurations. The RT-3020M
also has a 1
Bus
interface port.
GPS
Antenna
Our compact
performance and a stable
L2
. The robust housing assembly features a standard
BSW
5/8”
pole, tripod, or mast and is certified to 70,000’ feet.
PPS
thread for mounting directly to a surveyor’s
real-time kinematic (RTK
output port and a combined Event/
GPS
antenna with excellent tracking
phase center
for
) sensor
GPS L1
Although rated to 70K feet, this antenna is not
designed for aircraft installations. E-Mail
sales@navcomtech.com
for aircraft solutions.
CAN
and
Controller
GPS
The RT-3020
external c
serial
This may be accomplished using an IBM compatible PC,
Tablet PC or
software program which implements the rich control
language defined for NavCom
User’s Guide of your
information.
COM
ontroller
ports.
sensor is designed for use with an
solution connected via one of two
Personal Digital Assistant (PDA
GPS
products.
Controller
Solution for further
) and a
See
1-8
the
RT-3020 User Guide - Rev. E
Included Items
Figure 1: RT-3020 Supplied Equipment
X RT-3020
(RT-3020S
(RT-3020M
Y Compact
(
P/N
Z
GPS
GPS
sensor
P/N
92-310054-3001)
P/N
92-310054-3002)
L1/L2 GPS
82-001002-3002)
Antenna Cable (
Antenna
P/N
94-310058-3012)
1-9
RT-3020 User Guide - Rev. E
[
SSR
\
2.4GHz Radio Antenna (
LEMO
(
7 Pin to DB9S Data Communications Cable
P/N
94-310059-3006)
P/N
82-001000-0003)
] CD-Rom (
Guides to NavCom Technology, Inc. product line,
brochures, software utilities, and technical papers.
^
LEMO
12vdc 2 amp (
P/N
96-310006-3001) containing User
4-Pin Univerasal AC/DC Power Adapter
P/N
82-020002-5001)
_ RT-3020 User’s Guide {Not Shown}
P/N
(Hard Copy
96-310005-3001)
` Ruggedized Travel Case {Not Shown}
(
P/N
79-100100-0002)
a
SSR
Antenna Adapter {Not Shown}
(
P/N
91-310020-3001
11 American 2-Pin AC power Cord {Not Shown}
1-10
RT-3020 User Guide - Rev. E
Applications
The RT-3020
number of applications including, but not limited to:
Land Survey / GIS
Asset Location
Hydrographic Survey
Photogrammetric Survey
Machine Control
Railway, Ship and Aircraft Precise Location
GPS
sensors meets the needs of a large
Unique Features
The RT-3020
Positioning Flexibility
The RT-3020 is capable of using two internal
Based Augmentation System
provide
European Geostationary Navigation Overlay Service
(EGNOS)
itself to use the most suitable correction source available
and changes as the survey dictates.
GPS
sensors have many unique features:
Satellite
(
SBAS
) channels that
Wide Area Augmentation System (WAAS)
code corrections. The RT-3020 configures
or
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RT-3020 User Guide - Rev. E
Data Sampling
GPS L1
configuration and as an optional upgrade as fast as 10,
25, and 50Hz via either of the two serial ports. The
(Position, Time, & Velocity)
standard configuration and as an optional upgrade as
fast as 10, and 25Hz for high dynamic applications.
GPS
The NCT-2100
incorporates several patented innovations. The receiver
provides more than 50% signal to noise ratio advantage
over competing technologies. The benefit to the user is
improved real time positioning. Independent tests have
proven the NCT-2100 to be the best receiver when
facing various
Rugged Design
The rugged design of the RT-3020 system components
provides protection against the harsh environments
common to areas such as construction sites, offshore
vessels, and mines.
and L2 raw data is 1 to 5Hz in the standard
data is also 1 to 5Hz in the
Performance
GPS
engine at the heart of the RT-3020
multipath
environments.
PVT
Units have been tested to conform to MIL-STD-810F for
low pressure, solar radiation, rain, humidity, salt-fog,
sand, and dust.
1-12
RT-3020 User Guide - Rev. E
Chapter 2 Interfacing
This chapter details the RT-3020
connectors and status display. Appropriate sources of
electrical power, and how to interface the
communication ports.
GPS
sensor
Electrical Power
Electrical power is input thru a 4-pin
connector located on the front panel of the RT-3020,
and labeled ‘DC PWR.’ The pin designations are shown
in Table 1; see Figure 2 for pin rotation on unit.
Pin Description
1
2
3
Power Input 10 to 30 VDC
Return
LEMO
female
4
Table 1: External Power Cable Pin-Out
Pins 1 and 2 are connected together inside the RT-3020
GPS
sensor. Pins 3 and 4 are connected together inside
the
GPS
sensor.
When using an external power cable longer
than 5m (15ft), it is recommended that positive voltage
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RT-3020 User Guide - Rev. E
DC be applied on both pins 3 and 4, and return on
both pins 1 and 2.
Navcom P/N 82-020002-5001 Universal AC/DC 12 V 2
Amp Power Adapter comes standard with the RT3020S/M GPS receivers. An optional external power
cable, NavCom
unterminated power cable fitted with a
(Mfr.
P/N
FGG.1K.304.CLAC50Z) and red strain relief, is
suitable for supplying power to the RT-3020
sensor. The wiring color code and pin designations are
labeled on this optional cable assembly.
The
GPS
sensor is protected from reverse polarity by an
inline diode. It will operate on any DC voltage between
10 and 30 VDC, capable of supplying the required
current, typically. Power Consumption of the RT-3020 is
typically 5 Watts Maximum.
P/N
94-310060-3010 a 3m (10ft)
LEMO
plug type
GPS
Voltages less than 10VDC will shut the unit down.
When power is restored, the ON switch will need to be
held down for more than 3 seconds.
0 Voltages in excess of 30VDC will damage the unit. It
is extremely important to ensure that the power
supply is well conditioned with surge protection. This
is especially true for vehicular electrical systems, which
can create voltage spikes far in excess of 30VDC.
2-14
RT-3020 User Guide - Rev. E
Communication Ports
The RT-3020
LEMO
connector communication ports labeled
and
COM
sensor as shown in Figure 2. Each conforms to the EIA
RS232 standard with data speeds between 1200
and 115.2kbps. The pin-outs for these connectors are
described in Table 2. An interface data cable (P/N 94310059-3006) is supplied with the RT-3020 for easy
startup. The cable construction is described in Figure 4.
LEMO
Pins
1 CTS___Clear To Send 8
2 RD____Receive Data 2
3 TD____Transmit Data 3
4 DTR___Data Terminal Ready 4
GPS
sensor is fitted with two 7-pin female
2 located at the bottom front of the
Signal Nomenclature
DCE
w/respect to
[
DB9S
]
COM
GPS
bps
DB9S
Pins
1
5 RTN___Return [Ground] 5
6 DSR___Data Set Ready 6
7 RTS___Request To Send 7
Table 2: Serial Cable Pin-Outs
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RT-3020 User Guide - Rev. E
2-16
Figure 2: RT-3020 Front View
Figure 3: RT-3020M Only Back View
RT-3020 User Guide - Rev. E
Figure 4: NavCom Serial Cable 94-310059-3006
Pin 5 should connect to shield of cable at both ends.
Indicator Panel
Figure 5 RT-3020 Indicator Panel
The Indicator Panel provides the on/off (I/O) switch and
a quick view of the status of the RT-3020
corrections source & type, and radio signal strength.
Each of the three indicators has three
depict status as detailed in the following tables.
GPS
sensor,
LED
s, which
2-17
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