NavCom SF-2050 User Manual Rev.E
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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
SF-2050 User Guide - Rev. E
Table of Contents
Table of Contents ................................................. i
Notices.................................................................. ii
Chapter 1 Introduction.................................... 8
System Overview..................................................... 8
Applications .......................................................... 12
Unique Features .................................................... 12
Chapter 2 Interfacing..................................... 15
Electrical Power ..................................................... 15
Communication Ports............................................ 17
Indicator Panel ......................................................19
1 PPS..................................................................... 22
CAN Bus/Event...................................................... 22
Chapter 3 Installation .................................... 24
Tri-Mode Antenna ................................................. 24
GPS Sensor............................................................ 26
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
SF-2050G and SF-2050M ...................................... 37
B GPS Antenna Technical Specifications ...... 42
L1+L, L2 GPS Antenna ......................................... 42
C StarFire ..................................................... 44
Description............................................................ 44
How to Access the
D Event Input Configuration ......................... 50
Glossary .............................................................. 52
StarFire
Service...................... 47
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SF-2050 User Guide - Rev. E
Notices
SF-2050
P/N
Revision E August 2005
Serial Number:
Date Delivered:
GPS
Products User Guide
96-310002-3001
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
ii
SF-2050 User Guide - Rev. E
FCC Notice
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(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.
iii
SF-2050 User Guide - Rev. E
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.,
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.
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SF-2050 User Guide - Rev. E
This limited warranty period is one (1) year from date of
purchase.
StarFire
The
be purchased in order to access the service. Licenses are
non-transferable, and are subject to the terms of the
StarFire
on the
and conditions visit
email inquiry to
Licensing
StarFire
signal requires a subscription that must
™ Signal License agreement. For further details
StarFire
™ Signal Network, its capabilities, terms
www.navcomtech.com
or send an
sales@navcomtech.com
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.
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SF-2050 User Guide - Rev. E
Global Positioning System
Selective availability (S/A
GPS
UTC
Sensor.
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
SF-2050
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
familiar with the concepts of
equipment.
GPS
and satellite surveying
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.
vi
SF-2050 User Guide - Rev. E
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
vii
SF-2050 User Guide - Rev. E
Chapter 1 Introduction
The SF-2050
to the precise positioning community who need a
cost-effective, high performance
unique receivers use the
worldwide
position
anytime.
GPS
sensor delivers unmatched accuracy
GPS
sensor. These
StarFire
SBAS
system, for instant decimeter level
accuracy, virtually anywhere in the world,
Network, NavCom’s
System Overview
GPS
Sensor
The SF-2050 sensor consists of a 24-channel
frequency
channels for receiving
System (SBAS)
reception of NavCom’s
service, for instant decimeter-level position accuracy,
anywhere in the world, anytime. The sensor can output
proprietary raw data as fast as 50Hz (optional) and
Position Velocity Time (PVT
(optional) through two 115kbps serial ports. NavCom's
SF-2050 model sensors deliver unmatched positioning
accuracy to system integrators needing a cost-effective,
high performance differential
precision
signals and an
GPS
sensor with two additional
Satellite Based Augmentation
L-Band
StarFire
) data as fast as 25Hz
GPS
demodulator for
Network correction
sensor.
dual
The SF-2050 has a built-in
reception of NavCom’s
service giving an immediate solution for the system
integrator. Additionally, the sensor simultaneously
accepts corrections for
seamless position output.
L-Band
StarFire
demodulator for
Network correction
DGPS (WAAS/EGNOS)
assuring
1-8
SF-2050 User Guide - Rev. E
The SF-2050G is packaged for mobility. It can be used
for
Geographical Information System (GIS),
hydrographic surveying, and
frequency
backpack with the antenna either pole-mounted from
the backpack or on a survey pole with a single cable
connection.
The SF-2050M is ideal for vehicle mounting to suit a
wide variety of machine guidance and control
applications in agriculture, mining, aerial, and
hydrographic surveying. It is equipped with additional
features allowing interconnectivity with a wide variety
of antennas, vehicle data busses and other
instrumentation to suit specific applications and
configurations. The SF-2050M also has a 1
port and a combined
Both SF-2050 models can output proprietary raw data
as fast as 50Hz (optional) and
(
PVT
115kbps serial ports with less than 20ms latency. The
horizontal accuracy of 10 cm or better and the vertical
accuracy of 15 cm or better are maintained as each
output is independently calculated based on an actual
GPS
position measurement, as opposed to an
extrapolation between 1Hz measurements.
surveys. The sensor can be carried in a
Event/CAN Bus
) data as fast as 25Hz (optional) through two
post-processed dual
interface port.
Position Velocity Time
aerial and
-
PPS
output
Integrated
The all-in-one housing incorporates our compact
antenna with excellent tracking performance and a
stable phase center for
housing assembly features a standard 5/8”
for mounting directly to a surveyor’s pole, tripod, or
mast and is certified to 70,000 feet.
GPS
and Inmarsat Band Antenna
GPS
L1 and L2. The robust
BSW
1-9
GPS
thread
SF-2050 User Guide - Rev. E
Although rated to 70K feet, this antenna is not
designed for aircraft installations. E-Mail
sales@navcomtech.com
Controller
for aircraft solutions.
The SF-2050
external Controller Solution connected via one of two
serial
COM
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 Controller Solution for further
information.
Included Items
GPS
sensor is designed for use with an
ports.
Personal Digital Assistant (PDA
GPS
products. See the
) and a
1-10
Figure 1: SF-2050 Supplied Equipment
SF-2050 User Guide - Rev. E
X SF-2050
(SF-2050G
(SF-2050M
Y Compact L1/L2 Tri-Mode
(
P/N
Z
GPS
[
LEMO
12vdc 2 amp (
\
LEMO
(
P/N
] CD-Rom (
Guides to NavCom Technology, Inc. product line,
brochures, software utilities, and technical papers.
GPS
Sensor
P/N
92-310059-3001)
P/N
93-310059-3002)
GPS
Antenna
82-001002-3002)
Antenna Cable (
4-Pin Univerasal AC/DC Power Adapter
P/N
7 Pin to
94-310059-3006)
P/N
96-310006-3001) containing User
P/N
94-310058-3012)
82-020002-5001)
DB9S
Data Communications Cable
^ SF-2050 User’s Guide {Not Shown}
(Hard Copy
P/N
96-310002-3001)
_
Ruggedized Travel Case {Not Shown}
(
P/N
79-100100-0002)
v American 2-Pin AC power Cord {Not Shown}
1-11
SF-2050 User Guide - Rev. E
Applications
The SF-2050
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 meet the needs of a large
Unique Features
The SF-2050
StarFire
The ability to receive NavCom’s unique
correction service is fully integrated within each unit
with no additional equipment required. A single set of
corrections can be used globally enabling a user to
achieve decimeter level positioning accuracy without
the need to deploy a separate
time and capital expenditure.
GPS
sensor has many unique features:
[Subscription Required]
base station
StarFire
, thus saving
StarFire™ position accuracies are referenced to
ITRF2000
the
datum.
A horizontal geodetic datum may consist of the
longitude and latitude of an initial point (origin); an
azimuth of a line (direction) to some other
1-12
SF-2050 User Guide - Rev. E
triangulation station; the parameters (radius and
flattening) of the ellipsoid selected for the
computations; and the geoid separation at the
origin. A change in any of these quantities affects
every point on the datum. For this reason, while
positions within a system are directly and accurately
relatable, data such as distance and azimuth derived
from computations involving geodetic positions on
different datums will be in error in proportion to the
difference in the initial quantities.
Positioning Flexibility
The SF-2050 is capable of using two internal
Based Augmentation System
provide
Wide Area Augmentation System (WAAS)
European Geostationary Navigation Overlay Service
(EGNOS)
itself to use the most suitable correction source available
and changes as the survey dictates.
RTK Extend™
RTK Extend™ enables continuous RTK position accuracy
during radio communication outages by utilizing
NavCom’s global StarFire™ corrections. Traditionally,
when an RTK rover loses communication with the base
station, it is unable to continue to provide position
updates for more than a few seconds, resulting in user
down-time and reduced productivity. Through a
revolutionary technique called RTK Extend™, a
NavCom StarFire™ receiver, operating in RTK mode,
can transition to RTK Extend™ mode and maintain
centimeter accurate positioning during communication
loss for up to 15 minutes. RTK Extend™ allows the user
to work more efficiently and without interruption, thus
enabling them to concentrate on the work rather than
the tools.
code corrections. The SF-2050 configures
(
SBAS
) channels that
Satellite
or
1-13
SF-2050 User Guide - Rev. E
Data Sampling
GPS
L1 and L2 raw data is 1 to 5Hz in the standard
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
Performance
data is also 1 to5 Hz in the
PVT
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 with independent tests
proving the NCT-2100 to be the best receiver when
facing various
Rugged Design
The rugged design of the SF-2050 system components
provides protection against the harsh environments
common to areas such as construction sites, offshore
vessels, and mines.
Units have been tested to conform to MIL-STD-810F for
low pressure, solar radiation, rain, humidity, salt-fog,
sand, and dust.
GPS
engine at the heart of the SF-2050
multipath
environments.
1-14
SF-2050 User Guide - Rev. E
Chapter 2 Interfacing
This chapter details the SF-2050
and status display, appropriate sources of electrical
power, and how to interface the communication ports.
GPS
sensor connectors
Electrical Power
Electrical power is input thru a 4-pin
connector located on the front panel of the SF-2050,
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
4
Return
LEMO
female
Table 1: External Power Cable Pin-Out
Pins 1 and 2 are connected together inside the
SF-2050
together inside the
GPS
sensor. Pins 3 and 4 are connected
GPS
sensor.
When using an external power cable longer than 5m
(15ft), it is recommended that positive voltage DC be
applied on both pins 3 and 4, and return on both pins
1 and 2.
2-15
SF-2050 User Guide - Rev. E
Navcom P/N 82-020002-5001 Universal AC/DC 12 V 2
Amp Power Adapter comes standard with the SF2050G/M/R GPS receivers. An optional external power
P/N
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 SF-2050
The wiring color code and pin designations are labeled
on this optional cable assembly.
GPS
The
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 SF-2050 is
typically 8 Watts Maximum
sensor is protected from reverse polarity by an
94-310060-3010 a 3m (10ft)
LEMO
plug type
GPS
sensor.
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.
2-16
SF-2050 User Guide - Rev. E
Communication Ports
The SF-2050
LEMO
connector communication ports labeled
and
COM
sensor as shown in Figure 2. Each conforms to the
RS232 standard with data speeds between 1200 bps
and 115.2kbps. The pin-outs for these connectors are
described in Table 2. An interface data cable (NavCom
P/N 94-310059-3006) is supplied with the SF-2050 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
[
DB9
]
COM
GPS
DB9S
Pins
1
EIA
5 RTN__Return [Ground] 5
6 DSR__Data Set Ready 6
7 RTS__Request To Send 7
Table 2: Serial Cable Pin-Outs
2-17
SF-2050 User Guide - Rev. E
2-18
Figure 2: SF-2050 Front View
Figure 3: SF-2050M Only Back View
SF-2050 User Guide - Rev. E
Figure 4: NavCom Serial Cable
P/N
94-310059-3006
Pin 5 should connect to shield of cable at both ends.
Indicator Panel
Figure 5: SF-2050 Indicator Panel
The Indicator Panel provides the on/off (I/O) switch and
a quick view of the status of the SF-2050
corrections source & type, and StarFire signal
strength. Each of the three indicators has three LEDs,
which depict status as detailed in the following tables.
GPS
sensor,
2-19
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