NavCom SF-2040 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-2040 User Guide - Rev. E
Table of Contents
Table of Contents................................................. i
Notices.................................................................. ii
Chapter 1 Introduction.................................... 7
System Overview..................................................... 7
Applications .......................................................... 10
Unique Features .................................................... 10
Chapter 2 Interfacing..................................... 13
Electrical Power Supply..........................................13
Communication Ports............................................16
Indicator Panel ......................................................18
Chapter 3 Installation .................................... 22
SF-2040................................................................. 22
Communications Ports .......................................... 25
GPS Sensor............................................................ 26
Chapter 4 Configuration................................ 27
Factory Default Settings.........................................27
Advanced Configuration Settings........................... 30
Chapter 5 Safety Instructions ........................ 31
FCC Notice............................................................ 31
Transport .............................................................. 31
Maintenance ......................................................... 32
External Power Source ........................................... 32
Battery ..................................................................32
Safety First............................................................. 37
A
GPS
Sensor Technical Specifications ......... 38
SF-2040................................................................. 38
B StarFire ..................................................... 43
Description............................................................ 43
How to Access the
Glossary............................................................. 49
StarFire
Service...................... 47
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SF-2040 User Guide - Rev. E
Notices
SF-2040
P/N
Revision E August 2005
Serial Number:
Date Delivered:
GPS
Products User Guide
96-310003-3001
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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SF-2040 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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SF-2040 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
SF-2040 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.
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
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
UTC
code) was disabled on 2nd May
. The United States government has
GPS
users do so at their own risk.
GPS
products
altitude
are
v
SF-2040 User Guide - Rev. E
exceeded. These threshold values are far in excess of
the normal and expected operational parameters of the
GPS
SF-2040
Use of this Document
This User Guide is intended to be used by someone
familiar with the concepts of
equipment.
Sensor.
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.
Items that have been
acronym that can be found in the Glossary.
NavCom Technology, Inc. is constantly improving, and
updating our manuals. For the latest revisions to this
User Guide in a digital format go to:
support.navcomtech.com
vi
ITALICIZED
indicate a term or
SF-2040 User Guide - Rev. E
Chapter 1 Introduction
The SF-2040
to the precise positioning community who need a
cost-effective, high performance
unique receivers use the
worldwide
decimeter level
the world, anytime.
GPS
sensor delivers unmatched accuracy
StarFire
Differential GPS
position
accuracy, virtually anywhere in
GPS
sensor. These
Network, NavCom’s
system, for instant
System Overview
GPS
Sensor
The SF-2040 sensor consists of a 24-
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 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
opposed to an extrapolation between 1Hz
measurements. NavCom's SF-2040 model sensors
deliver unmatched positioning accuracy to system
integrators needing a cost-effective, high performance
differential
precision
signals and an
GPS
sensor.
GPS
sensor with two additional
Satellite Based Augmentation
L-Band
StarFire
) data as fast as 25Hz
GPS
position measurement, as
channel dual
demodulator for
Network correction
The SF-2040 has a built-in
reception of NavCom’s
L-Band
StarFire
demodulator for
Network correction
1-7
SF-2040 User Guide - Rev. E
service giving an immediate solution for the system
integrator. Additionally, the sensor simultaneously
accepts corrections for
seamless position output.
DGPS (WAAS/EGNOS)
assuring
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 L-Band Antenna
GPS
L1 and L2. The robust
BSW
Although rated to 70K feet, this antenna is not
designed for aircraft installations. Contact
sales@navcomtech.com
Controller
GPS
The SF-2040
external
serial COM ports.
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.
Controller
sensor is designed for use with an
Personal Digital Assistant (PDA
for aircraft solutions.
solution connected via one of two
) and a
GPS
products. See the
Controller
Solution for further
GPS
thread
1-8
SF-2040 User Guide - Rev. E
Included Items
Figure 1 SF-2040 Supplied Equipment
X SF-2040
Y
LEMO
Supplied Coily Cable P/N 94-310090-3003 (Straight
Cable P/N 94-310059-3006 shown in photo)
GPS
sensor (P/N 92-310055-3001)
7 Pin to
DB9S
Data Communications Cable
Z Battery Charger (P/N 92-310046-3001)
[ Universal AC/DC Adapter for Battery Charger
(P/N 82-020003-5001)
\ 2 Lithium Ion Batteries
P/N
(1 Battery Each =
] CD-Rom (
Guides to NavCom Technology, Inc. product line,
brochures, software utilities, and technical papers.
1-9
P/N
96-310006-3001) containing User
59-020101-0001)
SF-2040 User Guide - Rev. E
^ SF-2040 User’s Guide {Not Shown}
(Hard Copy
P/N
96-310003-3001)
_ Ruggedized Travel Case {Not Shown}
P/N
(
Applications
79-100100-0002)
The SF-2040
number of applications including, but not limited to:
Land Survey / GIS
Asset Location
Hydrographic Survey
Topographical Survey
GPS
Sensor meets the needs of a large
Unique Features
The SF-2040
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 the
ITRF2000
1-10
datum.
SF-2040 User Guide - Rev. E
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 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.
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.
Positioning Flexibility
The SF-2040 is capable of using two internal
Based Augmentation System
provide
Wide Area Augmentation System (WAAS)
(
SBAS
) channels that
Satellite
or
European Geostationary Navigation Overlay Service
(EGNOS)
code corrections. The SF-2040 configures
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SF-2040 User Guide - Rev. E
itself to use the most suitable correction source available
and changes as the survey dictates.
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 to 5Hz 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-2040 system components
provides protection against the harsh environments
common to areas such as construction sites and can
withstand a 2-meter drop onto a flat hard surface.
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-2040
multipath
environments.
1-12
SF-2040 User Guide - Rev. E
Chapter 2 Interfacing
This chapter details the SF-2040
and status display, appropriate sources of electrical
power, and how to interface the communication ports.
GPS
sensor connecters
Electrical Power Supply
Electrical power is input thru a 4-pin
connector located on the front panel of the SF-2040,
and labeled ‘DC PWR.’ The pin designations are shown
in Table 1; see Figure 2 for pin rotation on unit.
Pin Description
1
Return [Ground]
2
3
Power Input 10 to 30 VDC
LEMO
female
4
Table 1: External Power Cable Pin-Out
Pins 1 and 2 are connected together inside the SF-
2040
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 DC be
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SF-2040 User Guide - Rev. E
applied on both pins 3 and 4, and return on both pins
1 and 2.
The optional NavCom P/N 82-020002-5001 Universal
AC/DC 12 V 2 Amp Power Adapter can be used to
supply DC voltage wherever an AC outlet is available for
the SF-2040 GPS receiver. Another optional external
P/N
power cable, NavCom
(10ft) unterminated power cable fitted with a
plug type (Mfr.
strain relief, is suitable for supplying power to the SF-
GPS
2040
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 SF-2040 is
typically 8 Watts Maximum.
P/N
FGG.1K.304.CLAC50Z) and red
sensor. The wiring color code and pin
94-310060-3010 a 3m
LEMO
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.
The SF-2040 comes equipped with 2 removable Lithium
Ion battery packs that provide secondary power when
the primary external voltage is not available. Each of the
two battery packs is designed to last ~4 hours on a
single charge[conditions vary with use]. The smart
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SF-2040 User Guide - Rev. E
battery interface allows the batteries to be hot-swapped
on the fly. When battery 1 voltage level is sensed to be
between 7.5vdc to 8.2vdc, the sensor will automatically
switch over to battery 2 without the loss of a single
observation. A third battery (not supplied) could then
replace battery 1, and the process would reverse.
When external power is applied, it has precedence
over the batteries, but will not charge the batteries.
LED
Detailed information on the battery
s, batteries, and
battery charger can be found in Chapter 2 Interfacing,
Chapter 3 Installation, and Chapter 5 Safety.
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SF-2040 User Guide - Rev. E
Communication Ports
The SF-2040
LEMO
connector communication ports located below
the Indicator Panel labeled
in Figure 2. Each conforms to the EIA RS232 standard
with data speeds between 1200
The pin-outs for these connectors are described in Table
2. An interface data cable (
supplied with the SF-2040 for easy startup. The cable
construction is described in Figure 3.
Pin Connections for SF-2040 Serial Cable
LEMO
Pins
1 CTS___Clear To Send 8
2 RD____Receive Data 2
3 TD____Transmit Data 3
GPS
sensor is fitted with two 7-pin female
COM
1 and
bps
P/N
94-310090-3003) is
Signal Nomenclature
DCE
w/respect to
[
DB9S
COM
2 as shown
and 115.2
DB9S
]
kbps
Pins
.
4 DTR___Data Terminal Ready 4
5 RTN___Return [Ground] 5
6 DSR___Data Set Ready 6
7 RTS___Request To Send 7
Table 2: Serial Cable Pin-Outs
2-16
SF-2040 User Guide - Rev. E
Figure 2: SF-2040 Viewed From Bottom
Figure 3: NavCom Serial Cable 94-310090-3003
Pin 5 should connect to shield of cable at both ends.
2-17
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