Trimble 5580090 User Manual

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USER GUIDE

Trimble® SPSx50 Modular GPS Receiver

Version 1.0 Revision B March 2006

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Corporate Office

Trimble Navigat ion Limited 935 Stewart Drive

Sunnyvale, CA 94085 USA

www.trimble.com

Construction Business Area

Trimble Navigat ion Limited Construction Business Area 5475 Kellenburger Road Dayton, Ohio 45424-1099 USA 800-538-7800 (toll free in USA) +1-937-245-5600 Phone +1-937-233-9004 Fax

www.trimble.com

E-mail: trimble_support@trimble.com

Legal Notices

Trademark Office and in other countries. AutoBase, CMR, CMR+, HYDROpro, Maxwell, Micro-Centered, TGO, TRIMMARK, TSC2, TSCe, VRS, Zephyr, and Zephyr Geodetic are trademarks of Trimble Navigation Limited. The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Trimble Navigation Limited is under license. Microsoft, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. All other trademarks are the property of their respective owners.

Release Notice

This is the March 2006 release (Revision B) of the SPSx50 Modular GPS Receiver User Guide. It applies to version 1.0 of the SPSx50

Modular GPS receiver.

Limited Warranty Terms and Conditions

Product Limited Warranty

Subject to the terms and conditions set forth herein, Trimble Navigation Limited (“Trimble”) warrants that for a period of (1) year from date of purchase this Trimble product (the “Product”) will substantially conform to Trimble's publicly available specifications for the Product and that the hardware and any storage media components of the Product will be substantially free from defects in materials and workmanship.

Product Software

Product software, whether built into hardware circuitry as firmware, provided as a standalone computer software product, embedded in flash memory, or stored on magnetic or other media, is licensed and not sold. If accompanied by a separate end user license agreement, use of any such software will be subject to the terms of such end user license agreement (including any differing limited warranty terms, exclusions and limitations), which shall control over the terms and conditions set forth in this limited warranty).

Software Updates

During the limited warranty period you will be entitled to receive such Fix Updates and Minor Updates to the Product software that Trimble releases and makes commercially available and for which it does not charge separately, subject to the procedures for delivery to purchasers of Trimble products generally. If you have purchased the Product from an authorized Trimble distributor rather than from Trimble directly, Trimble may, at its option, forward the software Fix Update or Minor Update to the Trimble distributor for final distribution to you. Major Upgrades, new products, or substantially new software releases, as identified by Trimble are expressly excluded from this update process and limited warranty. Receipt of software updates shall not serve to extend the limited warranty period.

For purposes of this warranty the following definitions shall apply: (1) “Fix Update” means an error correction or other update created to fix a previous software version that does not substantially conform to its published specifications; (2) “Minor Update” occurs when enhancements are made to current features in a software

program; and (3) “Major Upgrade” occurs when significant new features are added to software, or when a new product containing new features replaces the further development of a current product line. Trimble reserves the right to determine, in its sole discretion, what constitutes a significant new feature and Major Upgrade.

Warranty Remedies

If the Trimble Product fails during the warranty period for reasons covered by this Limited Warranty and you notify Trimble of such failure during the warranty period, Trimble at its option will repair OR replace the nonconforming Product, OR refund the purchase price paid by you for the Product, upon your return of the Product to Trimble in accordance with Trimble's standard return material authorization procedures.

How to Obtain Warranty Service

To obtain warranty service for the Product, please contact your Trimble dealer. Alternatively, you may contact Trimble to request warranty service at +1-408-481-6940 (24 hours a day) or e-mail your request to trimble_support@trimble.com. Please be prepared to provide: – your name, address, and telephone numbers – proof of purchase –this Trimble warranty card – a description of the nonconforming Product including the model

number – an explanation of the problem. The customer service representative may need additional information from you depending on the nature of the problem.

Warranty Exclusions and Disclaimer

This Product limited warranty shall only apply in the event and to the extent that (i) the Product is properly and correctly installed, configured, interfaced, maintained, stored, and operated in accordance with Trimble's applicable operator's manual and specifications, and; (ii) the Product is not modified or misused. This Product limited warranty shall not apply to, and Trimble shall not be responsible for defects or performance problems resulting from (i) the combination or utilization of the Product with hardware or software products, information, data, systems, interfaces or devices not made, supplied or specified by Trimble; (ii) the operation of the Product under any specification other than, or in addition to, Trimble's standard specifications for its products; (iii) the unauthorized, installation, modification, or use of the Product; (iv) damage caused by: accident, lightning or other electrical discharge, fresh or salt water immersion or spray; or exposure to environmental conditions for which the Product is not intended; or (v) normal wear and tear on consumable parts (e.g., batteries). Trimble does not warrant or guarantee the results obtained through the use of the Product. NOTICE REGARDING PRODUCTS EQUIPPED WITH TECHNOLOGY CAPABLE OF TRACKING SATELLITE SIGNALS FROM SATELLITE BASED AUGMENTATION SYSTEMS (SBAS) (WAAS/EGNOS, AND MSAS), OMNISTAR, GPS, MODERNIZED GPS, OR GLONASS SATELLITES, OR FROM IALA BEACON SOURCES: TRIMBLE IS NOT RESPONSIBLE FOR THE OPERATION OR FAILURE OF OPERATION OF ANY SATELLITE BASED POSITIONING SYSTEM OR THE AVAILABILITY OF ANY SATELLITE BASED POSITIONING SIGNALS.

THE FOREGOING LIMITED WARRANTY TERMS STATE TRIMBLE'S ENTIRE LIABILITY, AND YOUR EXCLUSIVE REMEDIES, RELATING TO PERFORMANCE OF THE TRIMBLE PRODUCT. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED HEREIN, THE PRODUCT AND ACCOMPANYING DOCUMENTATION AND MATERIALS ARE PROVIDED “AS-IS” AND WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND, BY EITHER TRIMBLE OR ANYONE WHO HAS BEEN INVOLVED IN ITS CREATION, PRODUCTION, INSTALLATION, OR DISTRIBUTION, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NONINFRINGEMENT. THE STATED EXPRESS WARRANTIES ARE IN LIEU OF ALL OBLIGATIONS OR LIABILITIES ON THE PART OF TRIMBLE ARISING OUT OF, OR IN CONNECTION WITH, ANY PRODUCT.

SOME STATES AND JURISDICTIONS DO NOT ALLOW LIMITATIONS ON DURATION OR THE EXCLUSION OF AN IMPLIED WARRANTY, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

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Limitation of Liability

TRIMBLE'S ENTIRE LIABILITY UNDER ANY PROVISION HEREIN SHALL BE LIMITED TO THE AMOUNT PAID BY YOU FOR THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL TRIMBLE OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGE WHATSOEVER UNDER ANY CIRCUMSTANCE OR LEGAL THEORY RELATING IN ANYWAY TO THE PRODUCTS, SOFTWARE AND ACCOMPANYING DOCUMENTATION AND MATERIALS, (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF DATA, OR ANY OTHER PECUNIARY LOSS), REGARDLESS OF WHETHER TRIMBLE HAS BEEN ADVISED OF THE POSSIBILITY OF ANY SUCH LOSS AND REGARDLESS OF THE COURSE OF DEALING WHICH DEVELOPS OR HAS DEVELOPED BETWEEN YOU AND TRIMBLE. BECAUSE SOME STATES AND JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

PLEASE NOTE: THE ABOVE TRIMBLE LIMITED WARRANTY PROVISIONS WILL NOT APPLY TO PRODUCTS PURCHASED IN THOSE JURISDICTIONS, SUCH AS COUNTRIES OF THE EUROPEAN ECONOMIC COMMUNITY, IN WHICH PRODUCT WARRANTIES ARE OBTAINED FROM THE LOCAL DISTRIBUTOR. IN SUCH CASE, PLEASE CONTACT YOUR TRIMBLE DEALER FOR APPLICABLE WARRANTY INFORMATION.

Registration

To receive information regarding updates and new products, please contact your local dealer or visit the Trimble website at

www.trimble.com/register. Upon registration you may select the

newsletter, upgrade or new product information you desire.

Notices

Class B Statement – Notice to Users. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules and Part 90. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna. – Increase the separation between the equipment and the receiver. – Connect the equipment into an outlet on a circuit different from

that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician for

help. Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your

authority to operate this equipment under Federal Communications Commission rules.

Canada

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme

NMB-003 du Canada. This apparatus complies with Canadian RSS-310, RSS-210, and

RSS-119. Cet appareil est conforme à la norme CNR-310, CNR-210, et CNR-119 du Canada.

Europe

This product (the SPSx50 Modular GPS receiver) is intended to be used in all EU member countries.

This product has been tested and found to comply with the requirements for a Class B device pursuant to European Council Directive 89/336/EEC on EMC, thereby satisfying the requirements for C E Marking and sale w ithin the Europ ean Economic Area ( EEA). Contains Infineon radio module PBA 31307. These requirements are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential or commercial environment.

Australia and New Zealand

This product conforms with the regulatory requirements of the Australian Communications Authority (ACA) EMC framework, thus satisfying the requirements for C-Tick Marking and sale within Australia and New Zealand.

Taiwan – Battery Recycling Requirements

The product contains a removable Lithium-ion battery. Taiwanese regulations require that waste batteries are recycled.

廢電池請回收

Directive 1999/5/EC

Hereby, Trimble Navigation, declares that the SPSx50 GPS Receiver is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

Notice to Our European Union Customers

For product recycling instructions and more information, please go to www.trimble.com/ev.shtml.

Recycling in Europe: To recycle Trimble WEEE (Waste Electrical and Electronic Equipment, products that run on electrical power.), Call +31 497 53 24 30, and ask for the "WEEE Associate". Or, mail a request for recycling instructions to: Tri mble Euro pe BV c/o Menlo Worldwide Logistics Meerheide 45 5521 DZ Eersel, NL

Declaration of Conformity

We, Trimbl e Navi gation Limited,

935 Stewart Drive

PO Box 3642

Sunnyvale, CA 94088-3642

United States

+1-408-481-8000

declare under sole responsibility that the products:

SPSx50 Modular GPS receiver, NetR5

comply with Part 15 of 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.

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Safety Information

Before you use your Trimble® SPS GPS receiver, make sure that you have read and understood all safety requirements.

Regulations and safety

The receivers contain an internal radio-modem and can send signals through Bluetooth GPS antenna only) or through an external data communications radio. Regulations regarding the use of the radio-modems vary greatly from country to country. In some countries, the unit can be used without obtaining an end-user license. Other countries require end-user licensing. For licensing information, consult your local Trimble dealer.

Before operating an SPSx50 Modular GPS receiver or SPSx80 Smart GPS antenna, determine if authorization or a license to operate the unit is required in your country. It is the responsibility of the end user to obtain an operator’s permit or license for the receiver for the location or country of use.

For FCC regulations, see Notices, page iii.

Type approval

Type approval, or acceptance, covers technical parameters of the equipment related to emissions that can cause interference. Type approval is granted to the manufacturer of the transmission equipment, independent from the operation or licensing of the units. Some countries have unique technical requirements for operation in particular radio-modem frequency bands. To comply with those requirements, Trimble may have modified your equipment to be granted Type approval. Unauthorized modification of the units voids the Type approval, the warranty, and the operational license of the equipment.

wireless technology (SPSx50 Modular GPS receiver and the SPSx80 Smart

Exposure to radio frequency radiation

For 450 MHz radio

Safety. Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its actions in General Docket 79-144 on March 13, 1986.

Proper use of this radio modem results in exposure below government limits. The following precautions are recommended:

• DO NOT operate the transmitter when someone is 20 cm (7.8 inches) of the

antenna.

• DO NOT operate the transmitter unless all RF connectors are secure and any

open connectors are properly terminated.

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Safety Information

For license-free 900 MHz radio

• DO NOT operate the equipment near electrical blasting caps or in an explosive

atmosphere.

• All equipment must be properly grounded according to Trimble installation

instructions for safe operation.

• All equipment should be serviced only by a qualified technician.

CAUTION – For your own safety, and in terms of the RF Exposure requirements of the

FCC, always observe the precautions listed here.

• Always maintain a minimum separation distance of 20 cm (7.8 inches) between

yourself and the radiating antenna on the SPSx50 radio-modem.

• Do not co-locate the antenna with any other transmitting device.

For Bluetooth radio

The radiated output power of the internal Bluetooth wireless radio is far below the FCC radio frequency exposure limits. Nevertheless, the wireless radio shall be used in such a manner that the Trimble receiver is 20 cm or further from the human body. The internal wireless radio operates within guidelines found in radio frequency safety standards and recommendations, which reflect the consensus of the scientific community. Trimble therefore believes the internal wireless radio is safe for use by consumers. The level of energy emitted is far less than the electromagnetic energy emitted by wireless devices such as mobile phones. However, the use of wireless radios may be restricted in some situations or environments, such as on aircraft. If you are unsure of restrictions, you are encouraged to ask for authorization before turning on the wireless radio.

Installing antennas

CAUTION – For your own safety, and in terms of the RF Exposure requirements of the

FCC, always observe these precautions: – Always maintain a minimum separation distance of 20 cm (7.8 inches) between yourself and the radiating antenna. – Do not co-locate the antenna with any other transmitting device.

This device has been designed to operate with the antennas listed below, and having a maximum gain of 5 dBi. Antennas not included in this list, or having a gain greater than 5 dBi, are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.

The antennas to be used with the 450 MHz radio are 0 dBi and 5 dBi whip antennas. The antennas to be used with the 900MHz radio are 0dBi, 3dBi, and 5dBi whip antennas.

To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication.

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Battery safety

Safety Information

WARNING – Do not damage the rechargeable Lithium-ion battery. A damaged battery

can cause an explosion or fire, and can result in personal injury and/or property damage. To prevent injury or damage: – Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid. – Do not expose the battery to fire, high temperature, or direct sunlight. – Do not immerse the battery in water. – Do not use or store the battery inside a vehicle during hot weather. – Do not drop or puncture the battery. – Do not open the battery or short-circuit its contacts.

WARNING – Avoid contact with the rechargeable Lithium-ion battery if it appears to be

leaking. Battery fluid is corrosive, and contact with it can result in personal injury and/or property damage. To prevent injury or damage: – If the battery leaks, avoid contact with the battery fluid. – If battery fluid gets into your eyes, immediately rinse your eyes with clean water and seek medical attention. Do not rub your eyes! – If battery fluid gets onto your skin or clothing, immediately use clean water to wash off the battery fluid.

WARNING – Charge and use the rechargeable Lithium-ion battery only in strict

accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire, and can result in personal injury and/or equipment damage. To prevent injury or damage: – Do not charge or use the battery if it appears to be damaged or leaking. – Charge the Lithium-ion battery only in a Trimble product that is specified to charge it. Be sure to follow all instructions that are provided with the battery charger. – Discontinue charging a battery that gives off extreme heat or a burning odor. – Use the battery only in Trimble equipment that is specified to use it. – Use the battery only for its intended use and according to the instructions in the product documentation.

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Safety Information

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Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Regulations and safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Type approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Exposure to radio frequency radiation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

For 450 MHz radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

For license-free 900 MHz radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

For Bluetooth radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Installing antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Battery safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

About the SPSx50 receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SPS550 GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SPS550H GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SPS750 GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SPS850 Extreme GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Your Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2 Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

SPS550 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

SPS550H features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

SPS750 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

SPS750 standard features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

SPS750 Basic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SPS750 Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SPS850 Extreme features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Base station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Rover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Use and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

COCOM limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Keypad and display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Rear connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3 Batteries and Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

External power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Battery safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Battery performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Charging the Lithium-ion battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Storing the Lithium-ion battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Removing the rechargeable Lithium-ion battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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Contents

Operating the receiver with a Trimble controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4 Setup Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Base station operation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Base station components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Base station setup guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Permanent installation antenna cabling for the SPSx50 Modular GPS receiver

and SPS770 GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Rover operation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Rover receiver components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Rover receiver setup guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5 Setting up the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Connecting the receiver to external devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Trimble controller with SCS900 Site Controller software . . . . . . . . . . . . . . . . . . . . 40

External radio-modems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Common ways to set up a base station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Setting up a base station for permanent or semi-permanent installation. . . . . . . . . . 42

Setting up a base station for daily site use: T-Bar . . . . . . . . . . . . . . . . . . . . . . . . . 43

Setting up a mobile base station: Tripod and fixed height tripod . . . . . . . . . . . . . . . 44

Common ways to set up a rover receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Setting up the rover receiver on a jobsite vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 47

Setting up the rover receiver on a rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Setting up a rover receiver on a belt or in a backpack . . . . . . . . . . . . . . . . . . . . . . 50

Setting up a pair of SPSx50 GPS receivers to provide heading . . . . . . . . . . . . . . . . . . . . . 51

The Moving Baseline RTK positioning technique. . . . . . . . . . . . . . . . . . . . . . . . . 51

Mounting a pair of SPSx50 GPS receivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Assembling the receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Installing the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Mounting the antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Configuring the receiver pair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Interfacing using the NMEA protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

6 Configuring the SPSx50 Using the Keypad and Display . . . . . . . . . . . 59

Button functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Power button operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Status screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Configuring the SPSx50 as a base receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Configuring the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Configuring the SPSx50 as a rover receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Configuring the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Configuring system settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

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7 Configuring the Receiver Settings . . . . . . . . . . . . . . . . . . . . . . . 67

Using the SCS900 Site Controller software to configure the base station, the rover,

and the radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Configuring the receiver to log data for postprocessing . . . . . . . . . . . . . . . . . . . . . . . . . 69

Configuring Ethernet settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Configuring the SPSx50 receiver using a web browser . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Supported browsers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Changing the settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

8 Automatically Setting up a Mobile Base Station Using AutoBase

Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

AutoBase Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Working with AutoBase technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Scenario One: First visit to a site with AutoBase Warning turned off . . . . . . . . . . . . 88

Scenario Two: First visit to a site with AutoBase Warning turned on . . . . . . . . . . . . 89

Scenario Three: Repeat visit to a site with AutoBase Warning turned off. . . . . . . . . . 89

Scenario Four: Repeat visit to a site with AutoBase Warning turned on . . . . . . . . . . 90

Flowchart showing the AutoBase process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

9 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Default receiver settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Resetting the receiver to factory defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Data Logging option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Logging data after a power loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

10 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

Communication specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

GPS satellite signal tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Integrated radio options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Variable configuration options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

Upgrading the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

A NMEA-0183 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

NMEA-0183 message overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Common message elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

Message values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

NMEA messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

B GSOF Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Supported message types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

GSOF message definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

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Contents

LLH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

ECEF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

ECEF DELTA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

NEU DELTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

PDOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

SIGMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

SV Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

SV Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

UTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

Batt/Mem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

Attitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

Data collector report structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

C Adding Internal Radio Frequencies . . . . . . . . . . . . . . . . . . . . . 135

Adding receive frequencies for the 450 MHz internal radio. . . . . . . . . . . . . . . . . . . . . . .136

D Real-Time Data and Services . . . . . . . . . . . . . . . . . . . . . . . . . 137

RT17 Streamed Data service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138

Using the keypad and display to configure RT17 outputs. . . . . . . . . . . . . . . . . . . .138

Using the web interface to configure RT17 outputs . . . . . . . . . . . . . . . . . . . . . . .138

E Upgrading the Receiver Firmware . . . . . . . . . . . . . . . . . . . . . . 139

The WinFlash utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Installing the WinFlash utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Upgrading the receiver firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Forcing the receiver into Monitor mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141

F Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Receiver issues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

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CHAPTER

Introduction 1

Welcome to the SPSx50 Modular GPS Receiver User Guide. This manual describes how to set up

and use the Trimble receivers.

The SPS GPS receivers is a family of receivers that comprise the SPSx50 Modular GPS receivers, SPS770 GPS receivers, and the SPSx80 Smart GPS antennas. Where necessary, this manual contains references to specific receivers in the product family. When information is specific to a particular model, then the specific model name is used.

Even if you have used other Global Positioning System (GPS) products before, Trimble recommends that you spend some time reading this manual to learn about the special features of this product. If you are not familiar with GPS, visit the Trimble website (www.trimble.com) for an interactive look at Trimble and GPS.

SPSx50 Modular GPS

SPS550 GPS receiver

The Trimble SPS550 is a dual-frequency location GPS receiver. The SPS550 can operate as a DGPS reference station or as a DGPS rover receiver, and can use Satellite Based Augmentation Systems (SBAS). The receiver can also function as a rover receiver that uses OmniSTAR XP or HP correction services. The SPS550 is ideal for mobile applications on marine vessels and site vehicles where Real-Time Kinematic (RTK) accuracy is not needed. The SPS550 can be used with the SPS550H GPS receiver to provide both position and precise heading solutions for marine applications.

SPS550H GPS receiver

The Trimble SPS550H is an add-on receiver that can be combined with the SPS550, SPS750 Max, or SPS850 Extreme to provide a precise heading capability using Trimble moving base technology.

About the SPSx50 receivers

The SPSx50 Modular GPS receiver family comprises the following receivers:

• SPS550

• SPS550H

• SPS750 Basic base

• SPS750 Basic rover

• SPS750 Max

• SPS850 Extreme

SPS750 GPS receiver

The Trimble SPS750 is a dual-frequency GPS receiver with the ability to receive OmniSTAR corrections. The receiver is available in the following configurations:

• SPS750 Basic base

• SPS750 Basic rover

• SPS750 Max

The SPS750 can be configured using the keypad and display, a web browser, or the Trimble SCS900 Site Controller software. The SPS750 makes it easy to set up a mobile base station or a

SPSx50 Modular GPS Receiver User Guide 13

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1 Introduction

permanent base station for continuous operation. The SPS750 is also an ideal mobile receiver for semi-permanent mounting on vehicles and marine vessels.

SPS850 Extreme GPS receiver

The Trimble SPS850 Extreme is a triple-frequency GPS plus GLONASS receiver with the ability to receive OmniSTAR corrections. The SPS850 Extreme can operate as a base station or rover. The receiver can be configured using the keypad and display, web browser, or Trimble SCS900 Site Controller software. The SPS850 Extreme makes it easy to set up a mobile base station or a permanent base station for continuous operation. The SPS850 Extreme is also an ideal mobile receiver for semi-permanent mounting on vehicles and marine vessels.

Related Information

Technical Support

If you have a problem and cannot find the information you need in the product documentation, contact your local dealer. Alternatively, go to the Support area of the Trimble website (www.trimble.com/support.shtml). Select the product you need information on. Product updates, documentation, and any support issues are available for download.

If you need to contact Trimble technical support, complete the online inquiry form at www.trimble.com/support_form.asp.

Your Comments

Your feedback about the supporting documentation helps us to improve it with each revision. E-mail your comments to ReaderFeedback@trimble.com.

Sources of related information include the following:

• Help – The SCS900 Site Controller software

has built-in, context-sensitive help that lets you quickly find the information you need. Access it from the Help menu. Alternatively, click the a Microsoft

? button in a dialog, or press [F1]. On

Windows® CE device, select

Start / Help.

• Release notes – The release notes describe

new features of the product, information not included in the manuals, and any changes to the manuals. They are provided as a .pdf file on the Trimble SPS GPS Receiver CD.

• Trimble training courses – Consider a

training course to help you use your GPS system to its fullest potential. For more information, go to the Trimble website at www.trimble.com/training.html.

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CHAPTER

Features and Functions 2

In this chapter:

Q SPS550 features

Q SPS550H features

Q SPS750 features

Q SPS850 Extreme features

Q Use and care

Q COCOM limits

Q Keypad and display

Q Rear connectors

Trimble SPSx50 Modular GPS receivers are ideal for the following infrastructure development, site development, and marine construction applications:

• Mobile base station for RTK or DGPS

applications

• Permanent base station for Virtual

Reference Station (VRS applications (SPS550, SPS750, and SPS850 only).

Note – The permanent base station for VRS requires an option to be enabled. For more information, please contact your Trimble dealer.

• RTK rover on rod, backpack, site vehicle, or

marine vessel

• Site and marine location applications using

OmniSTAR HP or XP corrections

• Site and marine location applications using

DGPS RTCM corrections

You can use the SPSx50 Modular GPS receivers with the Trimble SCS900 Site Controller software.

™

), RTK, or DGPS

These receivers all feature a keypad and display so you can configure the receiver without using a controller or computer.

All the receivers can record GPS data to the internal memory, and optionally transfer the data over a USB or serial connection, or download data through an Ethernet connection.

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2 Features and Functions

SPS550 features

The receiver provides the following features:

• Location GPS – Sub-meter DGPS rover and base station capability

• Decimeter accuracy when using RTK corrections by radio link or VRS

• OmniSTAR XP/HP for a base station free service

• Optional internal 450 MHz (3 frequency bands) radio with transmit and receive

• Optional internal 900 MHz radio with transmit and receive capability (SPS550

• WAAS/EGNOS and MSAS Satellite Based Augmentation (SBAS) compatibility

• 24-channel L1/L2 GPS receiver – Single-frequency GPS for DGPS position

• Long-life integrated battery, typically 10 hours operation as a base station or

• Integrated display and keypad for rapid system configuration and status

capability (SPS550 only)

only)

solution and dual-frequency GPS for OmniSTAR XP/HP and heading solution

12 hours as a rover

checking, without the need for a controller

• Integrated Bluetooth wireless technology for cable-free configuration and

operation with a controller

• Ethernet support, so that the receiver can be configured remotely across an

Ethernet network or the Internet

• Attached or external radio antenna option for rover or “High Gain” base station

operation

• Small, lightweight design – 1.65 kg (3.64 lbs) receiver only, with battery

• Permanent/semi-permanent and mobile quick setup DGPS base station

capability

• The ability to broadcast corrections through multiple radio links from one base

station receiver (for example, through an internal 450 MHz radio and an external 900 MHz radio)

• Tough aluminum housing

• IP67 environmental rating

• –40° C to +65° C (–40° F to +149° F) operating temperature range

• 9 V to 30 V DC input power range, with over-voltage protection

• Two-line, 16-character VFD (Vacuum Fluorescent Display) display

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SPS550H features

The SPS550H receiver provides the following features:

• Precise Heading Add-on GPS receiver

• 24-channel L1/L2 GPS receiver for heading solution

• Long-life integrated battery, typically 12 hours as a rover

• Integrated display and keypad for rapid system configuration and status

checking, without the need for a controller

• Integrated Bluetooth wireless technology for cable-free configuration and

operation with a controller

• Ethernet support, so that the receiver can be configured remotely across and

Ethernet network or the Internet

• Dual-frequency antenna, dual SPS receiver mounting frame, and

interconnecting cable

• Small, lightweight design – 1.65 kg (3.64 lbs) receiver only, with battery

• Tough aluminum housing

Features and Functions 2

• IP67 environmental rating

• –40° C to +65° C (–40° F to +149° F) operating temperature range

• 9 V to 30 V DC input power range, with over-voltage protection

• Two-line, 16-character VFD (Vacuum Fluorescent Display) display

SPS750 features

The SPS750 receiver provides the following standard features. For features specific to each model, see below.

SPS750 standard features

• Integrated GPS receiver and radio

• 450 or 900 MHz radio:

– SPS750 Max has transmit and receive capabilities

– Basic base has transmit capabilities only

–Basic rover has receive capabilities only

• 24-channel L1/L2 GPS receiver

• OmniSTAR XP and HP service capability

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2 Features and Functions

• WAAS/EGNOS (Wide Area Augmentation System/European Geo-Stationary

• Long- life integrated battery, typically 10 hours operation as a base station or

• Operation parameters configured using the WinFlash utility, Trimble SCS900

• Integrated Bluetooth wireless technology for cable-free configuration and

• External GPS antenna choice for base station or rover operation

• Attached or external radio antenna option for rover or high-gain base station

• Small, lightweight design – 1.65 kg (3.64 lbs) receiver only, with battery; 4 kg

• Permanent/semi-permanent and mobile quick setup base station capability

Navigation System), and MSAS Satellite Based Augmentation (SBAS) compatibility

12 hours as a rover

Site Controller software, the integrated display and keyboard for system configuration with a controller, or the Web receiver interface

operation with a controller

radio operation

(8.82 lbs) complete system weight (rover including controller and rod)

• Backpack, belt, rod, truck, and marine vessel mounting options for rover

applications

• Capable of all site measurement and stakeout operations within 1.5 km (SPS750

Basic) and typically >5 km (SPS750 Max)

• Easy-to-use menu system for rapid configuration and status checking

• AutoBase

™

technology for rapid and automated repeated daily base station

setups

• Ethernet support, so that the receiver can be configured remotely across and

Ethernet network or the Internet

• The ability to broadcast corrections via multiple radio links from one base

station receiver (for example, via an internal 450 MHz radio and an external 900 MHz radio)

• Two-line, 16-character VFD (Vacuum Fluorescent Display) display

• CAN (Controller Area Network) support

• Rugged, weatherproof construction with an IP67 environmental rating

• –40° C to +65° C (–40° F to +149° F) operating temperature range

• 9 V DC to 30 V DC input power range, with over-voltage protection

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SPS750 Basic

• Base station only, or Rover only, operation

SPS750 Basic base

• Entry-level, low cost RTK base station

• Unrestricted operational range for rovers and grade control systems

• Integrated transmit-only radio

• Easily upgraded to the SPS750 Max

SPS750 Basic rover

• Entry-level, low cost RTK rover receiver

• 2 Hz measurement update rate

• 2.4 km (1.5 mile) operational range from the base station

• Integrated receive-only radio

• Ideal for contractors new to GPS as a starter system or for operating multiple

small projects

Features and Functions 2

• Easily upgraded to the SPS750 Max

SPS750 Max

• RTK base station and rover operation in a single receiver

• Integrated receive/transmit radio

• 5 or 10 Hz measurement update rate

• Unrestricted rover operation range from a base station

• Operates within a VRS network, for base station-free rover capability

• For marine applications: Moving baseline and heading capability when a Max or

Extreme receiver is combined with an SPS550H GPS receiver or an RTK rover-capable SPSx50 GPS receiver

SPS850 Extreme features

The SPS850 Extreme receiver provides the following features:

• Integrated GPS receiver and radio

• 450 or 900 MHz radio with transmit/receive capability

• 72-channel L1/L2/L2C/L5 GPS plus L1/L2 GLONASS receiver

• OmniSTAR XP and HP service capability

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2 Features and Functions

• WAAS/EGNOS, and MSAS Satellite Based Augmentation (SBAS) compatibility

• Long- life integrated battery, typically 10 hours operation as a base station or

• Integrated display and keypad for system configuration without a controller

• Integrated Bluetooth wireless technology for cable-free configuration and

• External GPS antenna choice for base station or rover operation

• Attached or external radio antenna option for rover or "High Gain" base station

• Small, lightweight design – 1.65 kg (3.64 lbs) receiver only, with battery; 4 kg

• Permanent/semi-permanent and mobile quick setup base station capability

• Backpack, belt, rod, truck, and marine vessel mounting options for rover

• Within radio or cellular phone coverage, full site measurement and stakeout

12 hours as a rover

operation with a controller

operation

(8.82 lbs) complete system weight (rover including controller and rod)

applications

capability

• Rover operation capability within a VRS (Virtual Reference Station) network

• Easy-to-use menu system for rapid configuration and status checking

• AutoBase technology for rapid and automated repeated daily base station

setups

• The ability to broadcast corrections via multiple radio links from one base

station receiver (for example, via an internal 450 MHz radio and an external 900 MHz radio)

• Two-line, 16-character VFD (Vacuum Fluorescent Display) display

• Rugged, weatherproof construction with an IP67 environmental rating

• –40° C to +65° C (–40° F to +149° F) operating temperature range

• 9 V to 30 V DC input power range, with over-voltage protection

Base station

• Unrestricted operational range for rovers and grade control systems

• Base station and rover operation in a single receiver

• Integrated receive/transmit radio

• Integrated Ethernet and IP capability facilitates base station and receiver

configuration over the Internet or via Ethernet connection on a computer network

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Page 21

• For marine applications: Moving baseline and heading capability when a Max or

Rover

• 5, 10, or 20 Hz measurement update rate

• Unrestricted rover operation range from a base station

• Base station-free rover capability within a VRS network

• Base station-free rover capability using OmniSTAR HP or XP services, with

• Ideal for contractors who operate mid to large size projects with machine

Use and care

This product is designed to withstand the rough treatment and tough environment that typically occurs in construction applications. However, the receiver is a high-precision electronic instrument and should be treated with reasonable care.

Features and Functions 2

Extreme receiver is combined with an SPS550H GPS receiver or an RTK rovercapable SPSx50 GPS receiver

<30 cm (1 ft) accuracy

control

CAUTION – Operating or storing the receiver outside the specified temperature range can damage it. For more information, see Chapter 10, Specifications.

COCOM limits

The U.S. Department of Commerce requires that all exportable GPS products contain performance limitations so that they cannot be used in a manner that could threaten the security of the United States. The following limitations are implemented on this product:

• Immediate access to satellite measurements and navigation results is disabled

when the receiver velocity is computed to be greater than 1000 knots, or its altitude is computed to be above 18 000 meters. The receiver GPS subsystem resets until the COCOM situation clears. As a result, all logging and stream configurations stop until the GPS subsystem is cleared.

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2 Features and Functions

Keypad and display

Feature Description

1 Power LED Indicates if the receiver is turned on or off.

2 Buttons Used to turn on and configure the receiver (see Button functions, page 60).

3 Display The receiver has a Vacuum Fluorescent Display. This display allows you to see

how the receiver is operating and view the configuration settings.

4 Bluetooth antenna Location of the Bluetooth antenna.

Figure 2.1 Front view of the SPSx50 GPS receiver

22 SPSx50 Modular GPS Receiver User Guide

Page 23

Rear connectors

1 2

Features and Functions 2

Connector type Description

1 TNC Connect to the GPS antenna

2 • TNC (450 MHz Internal

radio)

• Reverse polarity TNC (900 MHz internal radio)

• Not installed, system without internal radio

3 Vent plug External venting plug for pressure equalization

4 High Density

DB26

5 Lemo (7-pin/ 0-shell) • 3 wire RS-232 serial communications using a 7-pin/ 0 shell

Connect to the radio antenna

• Ethernet connectivity to a 10/100 Base-T network through an RJ45 jack on a multiport adaptor (P/N 57167)

• 'Slave' USB communications through the USB type B connector on the Multiport adaptor (P/N 57167)

• 'Host' USB communications through the USB type A connector on the 26-pin to Hirose adaptor (P/N 56653) and Hirose to USB type A cable (P/N 73841001)

• Primary power from a Trimble AC/DC power supply (P/N 48800-00) using the multiport adaptor (P/N 57167)

• Power input from an SPS700 total station battery cradle system using the adaptor (P/N 56653)

• Full 8 wire RS-232 serial communications using the 26-9-pin multiport adaptor (P/N 57168) or a 26-pin serial communications cable

• 3 wire RS-232 serial adaptor

Lemo cable

• Secondary power from a Trimble battery (P/N 32364-00 or 32365-00) or a 12 V battery using the Fused Lemo Power Cable (P/N 46125-00)

•CAN

Figure 2.2 Rear view of the SPSx50 GPS receiver

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2 Features and Functions

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CHAPTER

Batteries and Power 3

In this chapter:

Q External power

Q Battery safety

Q Battery performance

Q Charging the Lithium-ion battery

Q Storing the Lithium-ion battery

Q Removing the rechargeable

Lithium-ion battery

Q Operating the receiver with a

Trimble controller

The SPSx50 GPS receiver uses an internal rechargeable Lithium-ion battery, which can be replaced only at an Authorized Trimble Service Center.

The receiver can also be powered by an external power source that is connected to the Lemo or modem port.

The operational time provided by the internal battery depends on the type of measurement and operating conditions. Typically, the internal battery provides 10 hours operation as a base station and 12 hours as a rover during measurement operations using the internal radio.

Note – All battery operation tests are carried out with new, fully charged batteries at room temperature and full receiver configuration operational. Older batteries, at temperatures significantly higher or lower than room temperature, will have a reduced performance. Receivers operating with reduced configuration will have a higher performance.

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3 Batteries and Power

External power

The GPS receiver uses an external power source in preference to its internal batteries. If the receiver is not connected to an external power source, or if the external power supply fails, the internal batteries are used.

While carrying out static measurements for postprocessed computations using the internal memory, if no external power is supplied and the internal battery is drained, the receiver shuts down. No data is lost and when power is restored, the receiver restarts in the same status as it was when power was lost.

Battery safety

The receiver is powered by a rechargable internal Lithium-ion battery. Charge and use the battery only in strict accordance with the instructions below.

WARNING – Do not damage the rechargeable Lithium-ion battery. A damaged battery

WARNING – Avoid contact with the rechargeable Lithium-ion battery if it appears to be

Battery performance

To optimize battery performance and extend battery life:

• Fully charge all new batteries before use.

• Batteries perform best when they are not used at extreme temperatures. The

receiver is designed to operate at –40 °C to +65 °C (–40 °F to +149 °F). However, operation at temperatures of less than 0 °C (32 °F) can cause a rapid drop in battery life.

• Do not allow a battery that is in storage to discharge to below 5 V.

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Charging the Lithium-ion battery

The rechargeable Lithium-ion battery is supplied partially charged. Charge the battery completely before using it for the first time. If the battery has been stored for longer than three months, charge it before use.

The internal battery charges fully in 8 hours when connected to a suitable power source.

Batteries and Power 3

WARNING – Charge and use the rechargeable Lithium-ion battery only in strict

accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire, and can result in personal injury and/or equipment damage. To prevent injury or damage: – Do not charge or use the battery if it appears to be damaged or leaking. – Charge the Lithium-ion battery only with a Trimble product that is specified to charge it. Be sure to follow all instructions that are provided with the battery charger. – Discontinue charging a battery that gives off extreme heat or a burning odor. – Use the battery only in Trimble equipment that is specified to use it. – Use the battery only for its intended use and according to the instructions in the product documentation.

Storing the Lithium-ion battery

If you must store a Lithium-ion battery for long periods, make sure that it is fully charged before it is stored, and that you charge it at least once every three months while it is stored.

Do not allow a battery that is in storage to discharge to below 5 V. A battery that reaches deep discharge level (5 V or less) cannot be recharged and must be replaced. (To protect a battery that is in use from deep discharge, the receiver switches power sources or stops drawing power when the battery pack discharges to 5.9 V.)

All batteries discharge over time when not in use, and they discharge faster in colder temperatures. Do not store the receiver at temperatures outside the range –40 °C to +70 °C (–40 °F to +158 °F).

The SPSx50 receiver has an internal Lithium-ion battery. The internal battery will only charge from an external power source that delivers more than 15 volts, for example, an AC power adaptor. The receiver is supplied with a mains power supply unit that recharges the battery inside the receiver when it is connected through the adaptor to the modem port or the Lemo port. When you use the receiver on large projects, from a permanent or semi-permanent base station location in a site trailer, Trimble recommends that you use this power supply at all times to keep the internal battery charged. This provides an uninterrupted power supply and will keep the site operational for more than 10 hours after a power failure.

Keep all batteries on continuous charge when not in use. You can keep batteries on charge indefinitely without damage to the receiver or to the batteries.

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3 Batteries and Power

Removing the rechargeable Lithium-ion battery

The internal Lithium-ion battery should be removed only at an authorized Trimble Service Center. If the battery is removed at an unauthorized service center, the remaining warranty on the product will be void.

Operating the receiver with a Trimble controller

You can operate an SPS GPS receiver with any Trimble controller, for example, a TSC2 or TCU controller, that is running the SCS900 software. Typically, the receiver and the controller operate from their own individual power sources. The receiver and controller can communicate through Bluetooth wireless technology and can be connected without a cable. However, if a cable is required, the following information indicates which cable to use with which controller:

Controller Cable Controller connector Receiver connector

TSC2 P/N 18532 DSub9 DSub9

TCU P/N 5302007 6H (Marked “Com” on the controller

GPS holder)

TCU (alternative connection)

P/N 53004007 6H (Marked “Com” on the controller

GPS holder)

DSub9

7OS

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CHAPTER

Setup Guidelines 4

In this chapter:

Q Base station operation guidelines

Q Rover operation guidelines

GPS Real-Time Kinematic (RTK) operation provides centimeter-level accuracy by eliminating errors that are present in the GPS system. For all RTK operations, you require both a base station and a rover receiver.

This chapter introduces the concepts of base station and rover operation, provides information to help you identify good setup locations, describes best practices for setting up the equipment, and outlines the precautions that you need to take to protect the equipment.

Note – This chapter provides setup information for all the receivers in the SPS GPS receiver family.

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4 Setup Guidelines

Base station operation guidelines

A base station consists of a receiver that is placed at a known (and fixed) position. The receiver tracks the same satellites that are being tracked by the rover receiver, at the same time that the rover is tracking them. Errors in the GPS system are monitored at the fixed (and known) base station, and a series of position corrections are computed. The corrections are sent through a radio link to the rover receiver, where they are used to correct the real time positions of the rover.

Base station components

The base station has the following components:

• GPS receiver

• GPS antenna

• Base station radio

• Power supply

GPS receiver and GPS antenna

The base station GPS receiver can be one of following types:

• A Smart GPS antenna, such as the SPSx80, which incorporates a GPS receiver,

GPS antenna, power supply, and base station radio into a single compact unit. A Smart GPS antenna can be rapidly set up on a tripod, fixed height tripod, or T-Bar anywhere that is convenient on the jobsite.

• A Modular GPS receiver, such as the SPSx50, which incorporates a GPS receiver,

power supply, and base station radio in a single unit. The GPS antenna (and, optionally, the base station radio antenna) is separate from the receiver. Because the GPS antenna is separate, you can use the following optimized components:

– a geodetic antenna with large ground plane, to eliminate multipath (the

major source of GPS errors) at the base station

– a high gain or directional radio antenna, to increase broadcast range and to

provide maximum coverage

You can also place a modular GPS receiver in an easily accessible and secure location, safe from theft and the weather, while the antennas are placed high on a tower or building, clear of obstructions and able to deliver maximum performance.

You can use either type of receiver in a permanent, semi-permanent, or daily quick setup configuration. If semi-permanent or permanent operation is required, however, the modular receiver delivers significant advantages.

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Base station setup guidelines

For good performance, observe the following base station setup guidelines:

• Place the GPS receiver in a location on the jobsite where equal range in all

directions provides full coverage of the site. This is more important on larger jobsites, where the broadcast range of the base station radio may limit the operations of the GPS system.

• Place the GPS antenna in a location that has a clear line of sight to the sky in all

directions. Do not place the GPS antenna near vertical obstructions such as buildings, deep cuttings, site vehicles, towers, or tree canopy.

• Place the GPS and radio antennas as high as practical. This minimizes

multipath from the surrounding area, and enables the radio to broadcast to the maximum distance.

Note – The GPS antenna must have a clear line of sight to the sky at all times during operation.

• Choose the most appropriate radio antenna for the size and footprint of the site.

The higher the gain on the antenna, the longer the range. If there is more focus on the transmission signal, there is a reduced coverage area. A 3 db or 5 db gain antenna provides a mix of good range and reasonable directional coverage.

Setup Guidelines 4

• Make sure that the GPS receiver does not lose power. The GPS receiver has an

integrated battery, which has to be charged. To operate for the full day without loss of power at the base station, provide external power. Sources of external power include:

–AC power

– 12 V car or truck battery

– Trimble custom external battery pack

– Generator power

–Solar panel

When you use an external power supply, the integrated battery provides a backup power supply, enabling you to maintain continuous operation through a mains power failure.

When the GPS receiver is connected to a power source greater than 15 V, the integrated battery is continuously charged from the connected power source. This helps to ensure that the battery stays charged (SPS770 and SPSx50 only).

• Do not locate a GPS receiver, GPS antenna, or radio antenna within 400 meters

(about 1312 feet) of:

– a powerful radar, television, or cellular communications tower

–another transmitter

– another GPS antenna

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4 Setup Guidelines

Cellular phone towers can interfere with the base station radio broadcast and can stop corrections from reaching the rover receiver. High-power signals from a nearby radio or radar transmitter can overwhelm the receiver circuits. This does not harm the receiver, but can prevent the receiver electronics from functioning correctly.

Low-power transmitters, such as those in cellular phones and two-way radios, do not interfere with receiver operations.

• Do not set up the base station directly beneath or close to overhead power lines

or electrical generation facilities. The electromagnetic fields associated with these utilities can interfere with GPS receiver operation. Other sources of electromagnetic interference include:

– Gasoline engines (spark plugs)

– Televisions and computer monitors

– Alternators and generators

– Electric motors

–Equipment with DC-to-AC converters

– Fluorescent lights

–Switching power supplies

• Place the GPS receivers in a protected and secure location. If the base station is

in the center of a jobsite where heavy machinery is operating, place flags around the base station to warn operators of its existence.

• If you place the SPSx50 Modular GPS receiver or SPS770 GPS receiver in a lock

box on the jobsite to protect the receiver from theft or from the weather, shield the lock box from direct sunlight and provide ventilation for the receiver through an inlet and extractor fan. A receiver that has a broadcast radio generates significant heat. Do not allow the temperature in the box to exceed 65 ºC (149 ºF).

If working in a cold climate, you may need to provide heat to the receiver. Do not operate the receiver below –40 ºC (–40 ºF).

• Trimble recommends that, wherever possible, you keep GPS receiver equipment

dry. The receivers are designed to withstand wet weather, but keeping them dry prolongs their life and reduces the effects of corrosion on ports and connectors. If the equipment gets wet, use a clean dry cloth to dry the equipment, and then leave the equipment open to the air to dry. Do not lock wet equipment in a transport case for prolonged periods. Avoid exposing the GPS receiver to corrosive liquids and salt water wherever possible.

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Setup Guidelines 4

• Trimble recommends that you install lightning protection equipment at

permanent base station locations. Equipment should include a gas capsule lightning protector in the GPS and radio antenna feed line and appropriate safety grounding. A static dissipater near the antennas can reduce the likelihood of a direct lightning strike. Also protect any communications and power lines at building entry points. For more information, contact your local Trimble dealer, or go to the Huber and Suhner website (www.hubersuhnerinc.com).

• Trimble recommends that you use surge protection equipment on all

permanently installed equipment.

Permanent installation antenna cabling for the SPSx50 Modular GPS receiver and SPS770 GPS receiver

Many permanent base station installations have unique cabling requirements. Depending on the available infrastructure, you may need to mount the antenna a considerable distance from the receiver.

The SPSx50 and SPS770 can withstand a loss of 12 dB between the GPS antenna and the receiver. The degree of loss in a coaxial cable depends on the frequency of the signal passing through it. Table 4.1 lists some common cable types and the maximum length you can use before an inline amplifier for GPS frequencies is required.

Table 4.1 Maximum cable lengths

Cable type Maximum length (for use without an inline amplifier)

RG-214 30 m (100 ft)

LMR-400 70 m (230 ft)

LMR-500 85 m (280 ft)

LMR-600 106 m (350 ft)

Heliax LDF4/50 165 m (540 ft)

Heliax LDF4.5/40 225 m (740 ft)

Rover operation guidelines

The second part of the RTK GPS system is the rover receiver.

The rover receiver is mounted on a pole, vehicle, marine vessel, or in a backpack, and is moved between the points that require measurement or stakeout. The rover receiver is connected to a base station or to a source of RTK corrections such as a Virtual Reference Station (VRS) system. The connection is provided by an integrated radio, a

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4 Setup Guidelines

cellular modem in the controller, or through an external cellular phone that is connected to the receiver either by Bluetooth wireless technology or by means of a cable.

The correction stream for some other positioning solutions, such as SBAS

(WAAS/EGNOS, and MSAS) and the OmniSTAR XP or HP service

, is broadcast through geostationary satellites, and detected by the GPS antenna itself. No integrated radio or base station is required.

Rover receiver components

The rover receiver has the following components:

• GPS receiver

• GPS antenna

• Optional integrated radio receiver and antenna for RTK operations

• Optional items for the different mounting options (see below)

In most rover applications, the receiver operates entirely from its own integrated battery unit. On a vehicle or on a marine vessel, however, an external power supply can be used. Use an external power supply if one is provided. The internal battery then acts as a uninterruptible power supply, covering any external power failures.

Choose a rover receiver according to the needs of the job:

• A Smart GPS antenna, such as the SPSx80, incorporates the GPS receiver, GPS

antenna, power supply, and receive radio into a single compact unit. A Smart GPS antenna can be rapidly set up on a pole, vehicle, or backpack. This makes it easy to carry when you are measuring around the jobsite.

• A Modular GPS receiver, such as the SPSx50, incorporates the GPS receiver,

receive radio, and power supply into a single unit. The GPS antenna and, optionally, the receive radio antenna, is separate from the receiver. When you use a modular GPS receiver as a rover, you can use optimized components placed in the best locations for your application. For example:

– A small, lightweight rover antenna can be mounted on a pole or backpack;

placed in a high, inaccessible location on a marine vessel mast or cabin; or placed on a site vehicle roof or truck bed.

– A rubber duck radio antenna, or an external radio antenna, can be

mounted on a vehicle or vessel roof to provide maximum coverage.

A Modular GPS receiver can be placed in a location that is both easily accessible and safe from theft and the weather. The antennas can be placed high on a vehicle or vessel roof, clear of obstructions and able to deliver maximum performance.

OmniSTAR is only available with the SPSx50 Modular GPS receiver.

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Rover receiver setup guidelines

For good rover operation, observe the following setup guidelines:

• Place the GPS antenna in a location that has a clear line of sight to the sky in all

directions. Do not place the antenna near vertical obstructions such as buildings, deep cuttings, site vehicles, towers, or tree canopy. GPS rovers and the base station receive the same satellite signals from the same satellites: if you obscure the signals at times, the system will be unable to provide RTK Fixed positions.

• Place the GPS and radio antennas as high as possible to minimize multipath

from the surrounding area. The receiver must have a clear line of sight to the sky at all times during operation.

• GPS satellites are constantly moving. Because you cannot measure at a specific

location now does not mean that you will not be able to measure there later, when satellite coverage or location improves. Use GPS planning software to identify the daily best and worst satellite coverage times for your location, and then choose measurement times that coincide with optimal GPS performance. This is especially important when operating in the worst GPS locations.

• The SPS770 Extreme, the SPS850 Extreme, and SPS880 Extreme can track the

GPS L2C modernization signal. Additionally, the SPS850 Extreme and SPS880 Extreme can track the GPS L5 modernization signal and the GLONASS satellite constellation. These signals help you to get positions at the worst times of the day and in the worst GPS locations, but do not guarantee that you will.

Setup Guidelines 4

• To get a fixed position solution with centimeter accuracy, initialize the rover

receiver. For initialization to take place, the receiver must track at least five satellites that the base station is also tracking. In a dual-satellite constellation operation, for example, GPS and GLONASS, the receiver must track at least six satellites.

• To maintain a fixed position solution, the rover must continuously track at least

four satellites that the base station is also tracking. In a dual-satellite constellation operation, for example, GPS and GLONASS, the receiver must track at least five satellites.The radio link between the base and rover receivers must also be maintained.

• Loss of the satellite signals or loss of the radio link results in a loss of centimeter

position accuracy. From Fixed, the receiver changes to Float or Autonomous mode:

– In Float mode, the rover has connection to the base station through a radio,

but has not yet initialized.

– In Autonomous mode, the rover has lost radio contact with the base

station receiver, and is working by itself with the available GPS signals.

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4 Setup Guidelines

• On a vehicle or marine vessel, place the GPS antenna in a location as free from

shock and vibration as possible. For the modular receivers, a single magnetic mount is normally sufficient to hold the antenna in a suitable location, whereas for the larger smart antenna, a triple magnetic mount is normally recommended. Good alternatives include a 5/8" thread bolt in a suitable location on the roof bars, or a door-mounted pole bracket.

CAUTION – The SPS880 Extreme is not suited to on-vehicle operation where it will be subject to heavy vibration, that is, operation in rough ungraded terrain. Use in these conditions can damage the SPS880 Extreme.

• To mount the modular receiver on a pole, use two pole mounting brackets and a

second tripod clip (P/N 571 204 300). See Figure 4.1.

Figure 4.1 Rod mount for modular receiver

To mount the modular receiver on a marine vessel, use the receiver bracket (P/N 56830-00). For marine moving base and heading applications, use the receiver bracket to mount two receivers together.

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Setup Guidelines 4

• Make sure that the rover receiver does not lose power. An SPSx50 is typically

powered by its internal battery for the entire day. You cannot change the battery, but the charge lasts for longer than a day. The batteries in the SPSx80 can be changed when flat. (See Chapter 3, Batteries and Power). If you do not use the rover receiver very often, ensure that it is charged at least every three months. For vehicle operation or marine vessel operation, Trimble recommends that you use an external power source so that the internal battery can be saved for times when the receiver is being used off the vehicle or vessel.

• Do not locate the receiver or antenna within 400 meters (1312 ft) of powerful

radar, television, cellular communications tower, or other transmitters or GPS antennas. Low-power transmitters, such as those in cellular phones and two-way radios, normally do not interfere with receiver operations. Cellular towers can interfere with the radio and can interfere with GPS signals entering the receiver. High-power signals from a nearby radio or radar transmitter can overwhelm the receiver circuits. This does not harm the receiver, but it can prevent the receiver electronics from functioning correctly.

• Do not use the rover receiver directly beneath or close to overhead power lines

or electrical generation facilities. The electromagnetic fields associated with these utilities can interfere with GPS receiver operation. Other sources of electromagnetic interference include:

– gasoline engines (spark plugs)

– televisions and computer monitors

– alternators and generators

– electric motors

–equipment with DC-to-AC converters

– fluorescent lights

– switching power supplies

• Trimble recommends that, wherever possible, all GPS receiver equipment is

protected from rain or water. Although, the receivers are designed to withstand all wet weather conditions, keeping the receivers dry prolongs the life of the equipment and reduces the effects of corrosion on ports and connectors. If the equipment gets wet, use a clean dry cloth to dry the equipment, and then leave the equipment open to the air to dry. Do not lock wet equipment in a transport case for prolonged periods. Wherever possible, avoid exposing the GPS receiver to corrosive liquids and salt water.

• If you are using the rover receiver in open spaces, Trimble recommends that you

stop work during electrical storms where the risk of lightning strike is high.

• Where cables are involved, Trimble recommends that you use cable ties to

secure the cables to the rod or other equipment to avoid inadvertent snagging while moving about the jobsite. Be careful not to kink, twist, or unnecessarily extend cables, and avoid trapping them in vehicle doors or windows. Damage to cables can reduce the performance of GPS equipment.

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4 Setup Guidelines

Internal radio setup for rover operations

The internal radio of the SPS GPS receiver is delivered with the transmit (Tx) radio frequencies preprogrammed into the receiver. To add receive (Rx) radio frequencies to 450 MHz radios, use the WinFlash utility (see Appendix C, Adding Internal Radio Frequencies). Radio frequences cannot be added to the 900 MHz radios.

Once the radio frequencies are configured, use the controller or receiver to select channel frequencies during base station or rover setup operations.

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CHAPTER

Setting up the Receiver 5

Q Connecting the receiver to

external devices

Q Common ways to set up a base

station

Q Common ways to set up a rover

receiver

Q Setting up a pair of SPSx50 GPS

receivers to provide heading

This chapter provides guidelines for setting up the SPSx50 receiver as a base station, or as a rover receiver in a range of common use scenarios.

This chapter also describes the procedure for setting up a pair of receivers for heading and moving base marine construction applications.

Note – This chapter provides setup information for all the receivers in the SPS GPS receiver family.

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5 Setting up the Receiver

Connecting the receiver to external devices

You can connect an SPSx50 to the following devices:

• a Trimble controller running Trimble SCS900 Site Controller software

• an external radio-modem

• HYDROpro

Trimble controller with SCS900 Site Controller software

To connect a Trimble controller that is running the SCS900 Site Controller software to an SPS GPS receiver, use Bluetooth wireless technology ( for all except the SPS770 GPS receiver) or a serial cable. Ta b l e 5. 1 shows how to connect the cables for each combination of SPS GPS receiver and Trimble controller.

Table 5.1 Connecting to a Trimble controller running the SCS900 Site Controller software

™

software

Use this cable connector …

To connect a SPSx50 Modular GPS receiver to a …

TSC2 DB9 TSC2 32960

Lemo SPSx50

TCU 6-pin Hirose TCU 53004007

Lemo SPSx50

TSCe™ Lemo TSCe 31288-xx

Lemo SPSx50 This cable is available in different lengths. The

ACU 4-pin Hirose ACU 44147

Lemo SPSx50

To connect a SPS770 GPS receiver to a …

TSC2 DB9 TSC2 32960

Lemo (Port 1) SPS770

TCU 6-pin Hirose TCU 53004007

Lemo (Port 1) SPS770

TSCe Lemo TSCe 31288-xx

Lemo (Port 1) SPS770 This cable is available in different lengths. The

ACU 4-pin Hirose ACU 44147

Lemo SPSx50

To connect a SPSx80 Smart GPS antenna to a …

TSC2 DB9 TSC2 32960

Lemo (Port 1) SPSx80

TCU 6-pin Hirose TCU 53004007

Lemo (Port 1) SPSx80

and connect the cable to …

Cable part number

-xx indicates the length of the cable, in meters.

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Setting up the Receiver 5

Table 5.1 Connecting to a Trimble controller running the SCS900 Site Controller software

Use this cable connector …

TSCe Lemo TSCe 31288-xx

Lemo (Port 1) SPSx80 This cable is available in different lengths. The

ACU 4-pin Hirose ACU 44147

Lemo SPSx80

and connect the cable to …

Cable part number

-xx indicates the length of the cable, in meters.

External radio-modems

The most common data link for Real-Time Kinematic (RTK) operation is a radio. The SPSx50 is available with the following internal radios:

• 410–430 MHz (Tx/Rx, Rx only, or Tx only)

• 430–450 MHz (Tx/Rx, Rx only, or Tx only)

• 450–470 MHz (Tx/Rx, Rx only, or Tx only)

• 900 MHz (Tx/Rx, Rx only, or Tx only)

Note – “Tx” indicates that the radio transmits corrections. “Rx” indicates that the receiver receives corrections. “Tx/Rx” indicates that the radio both transmits and receives corrections.

If the SPSx50 does not have an internal transmit radio, or you want to connect to higher power or to a secondary external transmit radio or cellular modem, use the 26-pin port, the Lemo port, or Bluetooth wireless technology.

The SPSx50 supports the following Trimble base radios:

• TRIMMARK

• Trimble SNB900

• Trimble PDL450

• Trimble HPB450

™

The SPSx50 receiver also supports third-party transparent radios and third-party cellular modems.

When used with an SPSx50 GPS receiver, most external radios require an external power source. Only the Trimble SNB900 radio-modem has an internal battery and does not require external power.

Configure the external radio separately, using either the configuration program for the external radio or the radio display and keypad.

To configure the SPSx50 for RTK operation, follow the base setup procedure to set the following parameters:

• Set the base station coordinates

• Enable the RTCM or CMR+

™

corrections stream on the selected serial port.

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5 Setting up the Receiver

Common ways to set up a base station

You can set up a base station in different ways depending on the application, coverage area, degree of permanence versus mobility, and available infrastructure. Before you set up a base station, please read Chapter 4, Setup Guidelines.

Setting up a base station for permanent or semi-permanent installation

For construction applications, where machine and site positioning operations using GPS will be carried out over a long time (weeks, months, or years), ensure that you choose the base station location carefully.

A semi-permanent or permanent base station helps to eliminate the types of error that can result from repeated daily setups, and ensures that you always use the GPS antenna at the exact original location. The requirement for a permanent base station setup increases as more receivers that use the base station as a source of corrections, increases the cost of any base station downtime.

On the largest jobsites, and on those that remain operational for the longest time, a permanent or semi-permanent installation is a popular solution. An SPSx50 or SPS770 GPS receiver is typically used as the base station, located in a site office or trailer where it is easy to access (to check or configure), and where it is secure from theft and the weather. The GPS and radio antennas are normally mounted on a permanent structure on the roof of the building, where they are high and clear from obstructions and where the radio antenna can provide the maximum range of operation.

The GPS antenna most commonly used is the Trimble Zephyr Geodetic This antenna has a large ground plane that eliminates multipath, providing the best GPS performance at the base location. The antennas are connected to the receiver by high quality RF cables.

™

Model 2.

The receiver is connected to a permanent power supply (mains or generator power). The internal battery of the receiver is always being charged, and acts as an uninterruptible power supply if there is a power failure. In some cases, the receiver may also be connected by an Ethernet cable to the Internet, so that it can be monitored and configured from a remote location, and can warn an administrator by e-mail or text message if there is a change to the configuration. In these situations, the receiver can transmit GPS RTK corrections to a remote radio or receiver over the Internet, for rebroadcast requirements, without using repeaters.

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Setting up the Receiver 5

Figure 5.1 SPSx50 receiver permanent installation

Setting up a base station for daily site use: T-Bar

For construction applications where a daily setup and takedown of equipment is required for security reasons, Trimble recommends that you use a T-Bar setup.

The T-Bar consists of a post mounted in concrete (so it cannot move), which has a solid metal T-Bar mounted to it to provide lateral separation between the GPS antenna and radio antenna. The T piece of the T-Bar has a vertical rod at each end. Each end terminates in a 5/8"×11 thread to which the antennas can be mounted. Trimble recommends that one end is clearly marked GPS and the other end is clearly marked Radio so that at each daily setup, the GPS and radio antennas are mounted at the same location. Switching antennas by mistake introduces a position error in all resulting measurements. You can buy the parts you need to make a T-Bar from any reputable hardware store. Make certain that the T-Bar cannot rotate after construction. Rotation of the T-Bar can introduce a position error into all subsequent measurements.

On the upright post, mount either a bracket (to which the GPS receiver can be mounted), or a well-ventilated lockbox (in which the GPS receiver itself can be secured).

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5 Setting up the Receiver

Each day, mount the GPS antenna on the GPS end of the T-Bar and the radio antenna on the Radio end of the T-Bar. Connect the antennas to the receiver using the appropriate cables.The receiver uses its own integrated battery, or an external 12 V battery through the 12 V crocodile clips cable that are provided with the receiver. If you choose to use AC power, remember that the heat generated by the charging process and the radio transmitter increases the need for good ventilation around the receiver.

In such scenarios, an SPSx80 Smart GPS antenna is also often used. Simply mount the SPSx80 on the T-Bar, and optionally connect to an external battery or radio unit.

Advantages

Use of a T-Bar setup ensures that the base station is set up with exactly the same position and height every day. This helps eliminate the errors typically associated with daily tripod setup. For example, wrong antenna height, base not set up over the point, base set up in the wrong location.

Radio

GPS

Figure 5.2 System set up on a T-bar showing an external radio antenna to gain longer

range

Setting up a mobile base station: Tripod and fixed height tripod

If you are repeatedly moving between jobsites, or if you are visiting a jobsite for the first time before a T-Bar or similar setup can be established, Trimble recommends that you use either a tripod and tribrach setup, or a fixed height tripod.

The fixed height tripod is quicker and easier to set up over a control point. Take great care to ensure that the GPS antenna is set up accurately over the control point, and that the GPS antenna height is measured accurately, in the right way (vertical or slope

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Setting up the Receiver 5

height) to the right location on the antenna (base of antenna or to a specified location on the antenna). When you start the rover receiver, it is extremely important to check in, at one or more known locations, to check for possible position or height errors. Checking in at a known location is good practice and can avoid costly errors caused by a bad setup.

Typically, the tripod and fixed height tripod methods do not give significant height clearance above the ground, and can reduce the range of operation caused by radio limitations.

Tripod and tribrach setup

In the tripod setup, the tripod is located over the control point, and the tribrach and tribrach adaptor is mounted on the tripod and centered over the point.

1. Mount the GPS antenna on the tribrach adaptor.

– If you are using a SPSx80 Smart GPS antenna, use the 25 cm spacer rod

provided with the SPSx80 base station accessory kit. This allows the radio antenna in the receiver to clear the head of the tripod.

2. Clip the GPS receiver to the tripod (SPSx50 and SPS770 only).

3. Connect the GPS antenna to the receiver using the appropriate cable (SPSx50 and SPS770 only).

4. If necessary, connect the GPS receiver to an external 12 V power supply. Use the crocodile clip cable or the Trimble custom power pack.

SPSx50 with a low-gain “rubber duck” antenna

Figure 5.3 Tripod and tribrach setup for the SPSx50 and the SPSx80

SPSx50 with an external high-gain antenna

SPSx50 Modular GPS Receiver User Guide 45

SPSx80 with an internal 450 MHz TX radio

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5 Setting up the Receiver

Fixed height tripod setup

A fixed height tripod setup is similar to a tripod setup, but is simplified by the central leg of the tripod, that is placed directly on the control point. If the central leg is leveled accurately, the fixed height tripod is quick and easy to set up, and provides an accurate way to measure the true antenna height.

1. Set up the tripod over the control point.

2. Attach the GPS antenna to the head of the tripod.

3. If using an external high-gain radio antenna, mount the radio antenna to the

4. If using the SPSx50 Modular GPS receiver, hook the receiver to the center leg of

5. If using the SPSx80 Smart GPS antenna, you can mount the antenna using the

radio antenna bracket that is attached to the head of the tripod (beneath the GPS antenna). See Figure 5.4.

the tripod, using the tripod clip.

25 cm spacer rod (supplied with the SPSx80 Base Station Accessory kit) so that the radio antenna clears the head of the tripod.

Radio antenna bracket

SPSx50 with a low-gain “rubber duck” antenna

Figure 5.4 Fixed height tripod setup for the SPSx50 and SPSx80

SPSx50 with an external highgain radio antenna

SPSx80 with an internal 450 MHz TX radio on a fixed height tripod

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Common ways to set up a rover receiver

You can set up a rover receiver in different ways depending on the application. The components that make up a rover receiver are:

• GPS receiver

• GPS antenna

• controller/computer

• rod mounting equipment, including a rod, receiver bracket, and controller

bracket

• vehicle mounting equipment, including a suction cup and ball joint, extension

arm, controller bracket, magnetic antenna mount, and necessary cables.

• backpack equipment, including backpack and antenna-mounting rod

• marine vessel mounting equipment, including receiver bracket, cables, antenna,

and radio antenna brackets.

Setting up the rover receiver on a jobsite vehicle

Setting up the Receiver 5

CAUTION – This following rover setup is suited only to offroad (jobsite) vehicle use. Do not use this method on a vehicle that is driven at speed or in traffic.

1. Do one of the following, depending on your receiver:

– SPSx50 or SPS770: Mount the GPS antenna for the receiver on the roof of

the vehicle. Use a single magnetic mount or a 5/8"×11 thread bolt attached to the roof bars. Run the GPS antenna cable for the receiver into the vehicle either through a rubber grommet in the roof, or through the passenger door window, which needs to be left slightly open during operation.

– SPSx80: Mount the receiver on the roof of the vehicle. Use a triple magnetic

mount or a 5/8"×11 thread bolt attached to the roof bars.

2. Place and secure the GPS receiver in a convenient location in the vehicle.

The GPS receiver can be controlled through the controller connected using Bluetooth wireless technology (SPSx50 or SPSx80) or a cable connected to a port on the receiver (SPS770).

The receiver needs to be accessed only to turn it on at the start of each measurement session. It may be more convenient if the SPSx50 is placed in a location where the vehicle operator can see the keypad and display, to monitor receiver status and to configure settings as required. Most receiver capability can be controlled using the SCS900 Site Controller software.

3. Attach the suction cup to the front windscreen, dashboard, or other convenient location in the vehicle, making sure that it does not obstruct the driver’s view.

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5 Setting up the Receiver

4. Attach the RAM extension arm to the suction cup, and the controller bracket to

5. Lock the controller into the controller bracket and then adjust the bracket until

6. Lock the brackets so that the controller is held securely. If required, connect

the RAM extension arm.

the controller is in the most convenient location. Make sure that the controller does not restrict visibility through the front windscreen during vehicle use.

either the GPS receiver or the controller to an in-vehicle power supply as needed.

Figure 5.5 Configuring SPSx50 from the cab. A Zephyr Model 2 antenna is mounted on

the roof

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Setting up the rover receiver on a rod

For rod-based operation, mount the SPSx50 Modular GPS receiver as follows:

1. Mount the two rod brackets on the rod.

2. Tighten the top bracket, making sure that it is at a convenient height for the receiver.

3. Place the receiver in the slot in the rod bracket, and secure with the tripod clip.

4. Move the lower rod bracket down until it is over the second tripod clip on the receiver, and then tighten the rod bracket onto the rod. The receiver is held in place between the two brackets.

5. Insert the controller into the controller bracket as shown opposite.

6. Use the 5/8" thread to attach the GPS antenna to the top of the rod.

Setting up the Receiver 5

7. Use the GPS antenna cable to connect GPS antenna to the receiver.

For rod-based operation, mount the SPSx80 Smart GPS antenna as follows:

1. Mount the receiver on the top of the rod using the 5/8"×11 thread in the base of the SPSx80.

2. Insert the controller into the controller bracket.

3. The SPSx80 and controller communicates through Bluetooth wireless technology. However, if a cable is required, connect the cable between the controller and receiver (see Figure 5.6 through Figure 5.7).

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5 Setting up the Receiver

P/N 53002007

P/N 32960

Cabled connections Bluetooth connections

Figure 5.6 Connections for a rover SPSx80 setup, a TSC2 or TCU controller, and a 450 Mhz base station

P/N 53002007

Figure 5.7 Cabled connections for an SPSx80 setup, a TSC2 or TCU controller, and a 900 Mhz base station

<<diagram being updated>>

P/N 32960

(with external power)

P/N 312888-02

P/N 46125-00

Setting up a rover receiver on a belt or in a backpack

If you prefer to work free of the weight of a pole, you can mount the rover receiver on a belt (SPS770 or SPSx50 only) or carry it in/on a backpack (all receivers). When you wear the receiver on a belt, ensure that the display is always visible so that you can easily check the status of the receiver. If you carry the receiver in a backpack, use an external radio antenna mount to allow for optimal radio signal reception. If you use a low gain antenna mounted directly on the receiver in a backpack, it may affect the radio signal reception and reduce the likelihood of obtaining an RTK Fixed solution.

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Setting up the Receiver 5

Setting up a pair of SPSx50 GPS receivers to provide heading

The SPS550H receiver is permanently in Heading mode and, when combined with a suitable Trimble receiver, provides GPS heading. Other SPSx50 GPS receivers can be used for heading only if they can operate in Heading mode (see Configuring the receiver pair, page 57).

The SPS550H is a dual-frequency GPS receiver with a dual-frequency antenna, but it does not operate as a stand-alone DGPS receiver. To compute a true north heading and to be capable of positioning, the receiver requires an output message from another SPSx50 receiver. To determine the precise vector between two moving objects, pair the SPS550H Heading add-on with any one of the following SPSx50 receivers:

• SPS550

• SPS750 Max

• SPS850

Connect the antenna on the SPS550H to the other SPSx50 receiver to determine the precise GPS heading between the two antennas. The SPS550H GPS receiver shows the heading on the two-line display, and outputs the heading data in NMEA or binary format.

Tip – To create a single, compact GPS position and heading unit, use the mounting frame provided to stack the SPS550H GPS receiver on top of another SPSx50 GPS receiver. See below. Use the Marine Heading Cable (P/N 57169) provided.

The Moving Baseline RTK positioning technique

In most RTK applications, the reference receiver remains stationary at a known location and the rover receiver can move. However, Moving Baseline RTK is an RTK positioning technique in which both reference and rover receivers can move about. Moving Baseline RTK is useful for GPS applications that require vessel orientation.

Antenna

Figure 5.8 Vessel heading from Moving Baseline RTK

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5 Setting up the Receiver

With Moving Baseline RTK, the reference receiver broadcasts Compact Measurement

™

Record (CMR

) data every epoch, while the rover receiver performs a synchronized baseline solution at 10 Hz. The resultant baseline solution has centimeter-level accuracy. To increase the accuracy of the absolute location of the two antennas, the Moving Reference receiver can use differential corrections from a static source, such as a shore-based reference station.

Mounting a pair of SPSx50 GPS receivers

To obtain a position and heading solution, you need to connect two SPSx50 receivers to make one compact unit. A mounting bracket and interconnecting cable is supplied with the SPS550H receiver. Set up the receivers, antennas, and cables as shown in Figure 5.9.

Dual-frequency rover antenna Dual-frequency rover antenna

Antenna cable

Marine heading cable (P/N 57169)

Serial Port 2 SPS550H

Serial Port 2 SPSx50

Figure 5.9 Installation setup for the SPS550H with another SPSx50 receiver for position and heading

DC power

SPS550H

SPSx50

Mounting bracket (P/N 56830-00)

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Setting up the Receiver 5

Assembling the receivers

Figure 5.10 shows an SPS550 and an SPS550H set up to provide a Heading solution. To assemble the receivers, you need a Phillips head #1 screwdriver and a 1/4" socket set or wrench (spanner).

SPS550H GPS receiver

Other SPSx50 GPS receiver

Figure 5.10 Completed assembly with the SPS550H GPS receiver on top

To assemble the receivers using the mounting frame that is provided:

1. Invert the SPSx50 GPS receiver and then remove the rubber endcaps.

2. Prepare the flat black plate and the four Posi screws. (These are part of the mounting frame.)

3. Position the black plate on the SPSx50 GPS receiver.

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5 Setting up the Receiver

4. Use the four Posi screws to secure the plate to the receiver. (Secure two screws

5. Replace the rubber endcaps.

at each end.) The black plate is now attached to the bottom of the SPSx50 GPS receiver.

6. Invert the SPSx50 receiver again. This returns the receiver to its normal orientation.

7. Set aside the SPSx50 receiver.

8. Invert the SPS550H receiver and then remove the rubber endcaps.

9. Position the black cradle on the SPS550H GPS receiver. (The black cradle is part of the mounting frame.)

10. Use the four Posi screws to attach the black cradle to the receiver. The black cradle is now attached to the bottom of the SPS550H.

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Setting up the Receiver 5

11. Replace the rubber endcaps.

12. Place the black cradle on the black base plate. This places the SPS550H GPS receiver on top of the SPSx50 GPS receiver.

13. Make sure that the display is facing in the same direction on both receivers.

14. Prepare the eight nuts, spring washers, and flat washers.

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5 Setting up the Receiver

15. Insert the first bolt. Attach the flat washer, the spring washer, and finally the nut

16. Attach one connector from the Marine Heading Cable (P/N 57169) to the 26-pin

and then tighten firmly. Secure all eight bolts in this way.

connector on the rear of the SPS550H GPS receiver. Attach the other connector from the cable to the 26-pin connector on the rear of the SPSx50 receiver. The cable can be connected either way around.

The cable connects the two GPS receivers so that the Heading solution is available. The DC power lead on the cable supplies power to both receivers in the stack. The two DB9 female connectors on the cable access serial port 2 on each receiver.

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Setting up the Receiver 5

Installing the receiver

Select a location at which all of the following conditions are met:

• the receiver is not exposed to temperature extremes

• the receiver is not exposed to moisture extremes (such as rain, snow, water

blasters, or wash systems)

• the receiver is protected from mechanical damage

• you can connect and disconnect cables without placing undue stress on them

Mounting the antennas

You must install each antenna at the correct location. Poor or incorrect placement can influence accuracy and reliability.

Ideally, mount the two antennas as far apart as possible and at about the same height on the structure. Mount the antennas fore and aft along the vessel centerline or on a line that is at a known orientation to the centerline. Always mount an antenna at a location that ensures a good view of the sky.

Follow these guidelines to select the antenna location:

• Choose an area with a clear view of the sky. The antenna must be above any

metallic objects.

• Do not mount the antenna close to stays, electrical cables, metal masts, or other

antennas.

• Do not mount the antenna near a transmitting antenna, a radar array, or near

satellite communication equipment.

• Avoid areas with high vibration, excessive heat, electrical interference, and

strong magnetic fields.

Use a 5/8"×11 stainless steel bolt to mount each of the antennas. There is a threaded bolt hole in the base of the antenna.

Configuring the receiver pair

One of the receivers must be nominated as a Heading unit. The other receiver is nominated as a Moving Base unit. For this configuration to work, you must use the Marine heading cable (P/N 57169).

To set up the Heading unit:

1. From the Home screen, press

L twice. The Mode screen appears.

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5 Setting up the Receiver

2. Select Heading mode. The SPSx50 display shows two extra settings for heading:

To set up the Moving Base unit:

– Heading Adjustment. Enter a positive value in decimal degrees. The value is

applied to the raw heading value before it is output in the NMEA HDT message or displayed on the front panel of the receiver. This value is used when the two antennas are not mounted parallel to the vessel axis.

– Minimum Heading Solution. Enter the minimum requirement for the GPS

solution that will provide the heading value. The default of RTK Fixed provides the highest precision, but in conditions of extreme multipath or obstruction, an RTK Fixed solution may not be continuously available. In such conditions, select RTK Float if a lower precision is acceptable.

1. From the Home screen, press

L twice. The Mode screen appears.

2. Select Moving Base mode.

Interfacing using the NMEA protocol

The SPS550H GPS receiver can output messages such as NMEA HDT for heading, and NMEA GGA for position. The SPS550H always reports the solution status of the moving baseline solution that is being used to compute the heading. For example, the Modem (serial port 2) on the SPS750, which is typically RTK Fixed Integer. However, if the external computer must know the exact quality of the position, you can use the NMEA output from the base receiver. The base receiver reports the solution status of the position, for example, Fixed Integer, Floating, or DGPS.

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CHAPTER

Configuring the SPSx50 Using the Keypad and Display

In this chapter:

Q Button functions

Q Power button operations

Q Home screen

Q Status screens

Q Configuring the SPSx50 as a base

receiver

Q Configuring the SPSx50 as a rover

receiver

Q Configuring system settings

The receiver features a keypad and display (see Keypad and display, page 22) so that you can configure the receiver without using a controller or computer.

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6 Configuring the SPSx50 Using the Keypad and Display

Button functions

The SPSx50 has seven buttons on the front panel to control the receiver. Use the buttons to turn the receiver on and off and to check or change the receiver settings.

Button Name Function

Power Turns the receiver on and off. To turn the receiver off, hold the Power

Escape Returns to the previous screen or cancels changes being made on a

Enter Advances to the next screen or accepts changes made on a screen.

Up Moves the cursor between multiple fields on a screen or makes changes

Down Moves the cursor between multiple fields on a screen or makes changes

Left Moves the cursor between characters in a field that can be changed.

Right Moves the cursor between characters in a field that can be changed.

button for two seconds.

screen.

to an editable field.

Press this button to enter Edit mode.

Power button operations

Press the Power button Power button to return to the Home screen, or hold down the Power button to perform the following operations:

To … Hold the

button for …

turn off the receiver two seconds The display shows a countdown timer. When the display goes

clear the almanac, ephemeris, and SV information

reset the receiver to its factory defaults and the default application file

force the receiver to power down

15 seconds The display show a countdown timer. When the display goes

35 seconds The display show a countdown timer. When the display goes

at least 60 seconds

to turn the receiver on and off. In addition, you can tap the

Notes

blank, release the

blank, continue to hold the countdown time to clear the almanac and ephemeris. When the counter reaches 0, release the

blank, continue to hold the countdown to clear the almanac and ephemeris. When the counter reaches 0, continue to hold the display indicates a countdown to resetting the receiver. When the counter reaches 0, release the

If the method above does not work, use this method to force the receiver to turn off. When the Power LED goes off, release the Power button.

Power button.

Power button. The display shows a

Power button.

Power button. The display show a

Power button. The

Power button.

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Home screen

The Home screen is the main screen displayed on the SPSx50 receiver. If the receiver is displaying another screen and is left idle for 60 seconds, you are returned to the Home screen. It shows the following information:

• Number of satellites being tracked

• Internal battery power remaining

• Current mode configuration

• Internal radio activity

• Internal radio channel or network

Status screens

The SPSx50 GPS receivers have several view-only status screens that allow you to review the current settings of the receiver. The status screens provide the following information:

• Position solution

Configuring the SPSx50 Using the Keypad and Display 6

• CMR and RTCM IDs

• Base name and code

• Latitude, longitude, and height

• Antenna height

• Horizontal and vertical precision

• Receiver firmware version

• Receiver serial number

• Receiver IP address

To access these screens from the Home screen, press

Configuring the SPSx50 as a base receiver

To set up the SPSx50 as a base receiver, use AutoBase technology, the Trimble SCS900 Site Controller software, or the receiver keypad.

The AutoBase feature automatically configures the receiver settings for you; there is no need to use the keypad. The receiver obtains a position and outputs RTK corrections on the internal radio (if available) or on the LEMO port. See Chapter 8, Automatically Setting up a Mobile Base Station Using AutoBase Technology.

J or K .

The receiver is configured step-by-step to ensure that all appropriate settings are configured. To move between steps in the configuration process, press

SPSx50 Modular GPS Receiver User Guide 61

L .

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6 Configuring the SPSx50 Using the Keypad and Display

Configuring the receiver

1. In the Home screen, press L . Use the Operation Mode screen to configure

system settings, mode settings, or to view the SV (satellite) status. Mode Settings is the default setting.

2. Press

L . Use the Mode screen to select whether the receiver will operate as a

base or rover. Base is the default setting.

3. Press

L . Use the Base Station screen to select whether the receiver is going to

use a “Here” position or if the current coordinates in the receiver will be changed.

4. Press

G . When Edit Current begins to flash, the receiver is in Edit mode and

you can change the current setting.

5. Press

6. Press

7. Press

K . The setting changes to New Base (Here). L to accept the change. L again. The Base Name screen appears. See next.

Changing the name and description of the base station

In the Base Name screen:

1. Press

G . When the first character of the base name begins to flash, the receiver

is in Edit mode and you can change the current setting.

2. Press

3. Press

J or K  to change the value of the character. G to move the cursor to the next character.

4. Repeat Step 2 through Step 3 to enter the name of the base station. The name can be up to 16 characters. Press

L to accept the change.

5. Press

L again. Use the Base Code screen to change the code (description) for

the base station.

6. Press

G . When the first character of the base code begins to flash, the receiver

is in Edit mode and you can change the current setting.

7. Press

8. Press

J or K  to change the value of the character. G to move the cursor to the next character.

9. Repeat Step 7 through Step 8 to enter the code of the base station. The code can be up to 16 characters.

10. Press

11. Press

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L to accept the change. L again. The Base Latitude screen appears. See next.

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Configuring the SPSx50 Using the Keypad and Display 6

Setting the reference latitude, longitude, and height of the base station

In the Base Latitude screen:

1. The base was set up with a “Here” position, so press

L .

2. The Base Longitude screen is used to change the reference longitude of the base station. The base was set up with a “Here” position, so press

L .

3. The Point Height screen is used to change the reference height of the base station. The base was set up with a “Here” position, so press

L .

4. Use the Antenna Type screen to select the type of antenna used with the receiver. Press

G . When the antenna name begins to flash, the receiver is in Edit mode

and you can select an antenna.

5. Press

6. Once the correct antenna name appears, press

7. Press

K  to scroll through the antenna models.

L to accept the change.

L again. The Measured To screen appears. See next.

Measuring and changing the antenna height

In the Measured To screen:

1. Press

G . When the antenna measurement method begins to flash, the receiver

is in Edit mode and you can select an antenna measurement method.

2. Press

K  to scroll through the measurement methods. Once the correct

measurement method appears, press

L to accept the change.

3. Press

L .

4. Use the Antenna Height screen to change the height of the antenna. Press When the first character of the antenna height begins to flash, the receiver is in Edit mode and you can change the antenna height.

5. Press

6. Press

J or K  to change the value of the character. G to move the cursor to the next character.

7. Repeat Step 5 through Step 6 to enter the height of the antenna.

8. Press

9. Press

L to accept the change. L again. The Output screen appears. See next.

Outputting corrections

In the Output screen:

1. Press

2. Press

3. Press

4. Press

G to enter Edit mode for the port. J or K  to change which port will be used to output corrections. L to accept the change. K  to move the cursor to the Format field.

L .

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6 Configuring the SPSx50 Using the Keypad and Display

5. Press G to enter Edit mode for the format.

6. Press

7. Press

8. Press

J or K  to change which correction message will be output on the port. L to accept the change. L again.

9. Use the NMEA screen to set up NMEA outputs from the receiver. Press accept the default of no NMEA messages.

10. Use the GSOF screen to set up GSOF outputs from the receiver. Press accept the default of no GSOF messages.

11. Use the RT17 screen to set up RT17 outputs from the receiver. Press accept the default of no RT17 messages. The Home screen appears and the base setup is complete.

Configuring the SPSx50 as a rover receiver

You can use the Trimble SCS900 Site Controller software or the receiver keypad to set up the SPSx50 base receiver.

The receiver is configured step by step to ensure that all appropriate settings are configured. To move between steps in the configuration process, press

L to

L .

Configuring the receiver

1. In the Home screen, press L . Use the Operation Mode screen to configure

system settings, mode settings, or to view the SV (satellite) status. Mode Settings is the default setting.

2. Press

3. Press

4. Press

5. Press

6. Press

Changing the elevation mask and RTK mode

1. Press

2. Press

Note – Trimble recommends that you do not set the elevation mask to a value lower than 10 degrees.

L . Use the Mode screen to select whether the receiver will operate as a

base or rover.

G . When the mode begins to flash, the receiver is in Edit mode and you

can change this setting.

K  to change to Rover. L to accept the change. L again to move to the Elevation mask and RTK mode screen. See next.

G . When the value for the current elevation mask begins to flash, the

receiver is in Edit mode and you can change the setting.

K  to change the elevation mask to the required value.

3. Press

64 SPSx50 Modular GPS Receiver User Guide

L to accept the change.

Page 65

4. Press K .

Configuring the SPSx50 Using the Keypad and Display 6

5. In the Mode field, press

G . When the current mode begins to flash, the receiver

is in Edit mode and you can change this setting.

6. Press

7. Press

8. Press

K  to change the desired RTK mode of the receiver. L to accept the change. L again. The Antenna Type screen appears. See next.

Selecting the antenna

In the Antenna Type screen:

1. Press

G . When the antenna name begins to flash, the receiver is in Edit mode

and you can select the type of antenna that is to be used with the receiver.

2. Press

3. Once the correct antenna name appears, press

4. Press

K  to scroll through the antenna models.

L to accept the change.

L again. The NMEA screen appears. See next.

Outputting corrections

In the NMEA screen, set up outputs from the receiver:

1. Press

L to accept the default of no NMEA messages.

2. Use the GSOF screen to set up GSOF outputs from the receiver. Press accept the default of no GSOF messages.

3. Use the RT17 screen to set up RT17 outputs from the receiver. Press accept the default of no RT17 messages. The Home screen appears, and the base setup is complete.

Configuring system settings

You can use the keypad and display of the SPSx50 receiver to configure the following receiver settings:

• Display language

• Display and input units

• Baud rate, parity, data bits, and stop bits for serial ports

• Display power saver

• AutoBase warning

L to

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6 Configuring the SPSx50 Using the Keypad and Display

To access the system settings:

1. In the Home screen, press

L . Use the Operation Mode screen to configure

system settings or mode settings, and to view the SV (satellite) status. Mode Settings is the default setting.

2. Press

G . When the operation mode begins to flash, the receiver is in Edit mode

and you can change this setting.

3. Press

4. Press

5. Press

K  to change to System Setup. L to accept the change. L again.

6. Use the Display Language screen, if necessary, to change the language. Choose English, French, German, Italian, or Spanish. Press

7. Press

L again. Use the Display and Input Units screen, if necessary, to change

L to accept the change.

the units to Meters or Feet.

8. Press

9. Press

10. Press

11. Press

L to accept the change. L again. Use the Port Settings screen, if necessary, to change the port. L to accept the change. L again. Use the Screen Pwr Savr screen to choose On, Off, or Auto. If you

use the Auto setting, the screen turns off after 60 seconds of inactivity. The Power LED remains lit so that you can tell if the receiver is on or off. If an error message appears, the screen comes back on. Press then press

L again to move to the next screen.

L to accept the change and

12. If you are using an SPS750 or SPS850, the Autobase warning screen appears. See Chapter 8, Automatically Setting up a Mobile Base Station Using AutoBase Te ch n ol o gy .

13. Press

14. Press

L to accept the change. L again. When the Home screen appears, the system setup is complete.

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CHAPTER

Configuring the Receiver Settings 7

In this chapter:

Q Using the SCS900 Site Controller

software to configure the base station, the rover, and the radios

Q Configuring the receiver to log

data for postprocessing

Q Configuring Ethernet settings

Q Configuring the SPSx50 receiver

using a web browser

You can configure the SPS GPS receiver family in a variety of ways. This chapter describes the different configuration methods, and explains when and why each method is used.

The SCS900 Site Controller software is likely to be your main tool to set up and operate the receiver on a daily basis. All necessary field configurations are handled through the SCS900 software running on a TSC2 or TCU controller. For more information, refer to the Trimble SCS900 Site

Controller Software Getting Started Guide or the Trimble SCS900 Site Controller Software Office Guide.

The external software detailed in this chapter is primarily used to update the receiver firmware and to configure upgrades or radio channels.

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7 Configuring the Receiver Settings

Using the SCS900 Site Controller software to configure the base station, the rover, and the radios

As part of a total system solution for construction applications, the SPS GPS receivers are operated by a TSCe, ACU, TCU, or TSC2 controller running the SCS900 Site Controller software. The SCS900 Site Controller software provides the tools to configure and start the GPS receiver in the modes used by the SCS900 system: Base Station, RTK Rover, DGPS Rover, OmniSTAR rover, SBAS Rover (using WAAS/EGNOS and MSAS). Wizards help you through the process and, where possible, assign suitable default operational parameters to the system. This eliminates the need for an operator to know how to configure the receiver with the right settings.

The SCS900 Site Controller software manages:

• the radio, whether internal or external

• all cellular communications components, such as modems and cellphones

• the use of the Bluetooth wireless technology

The software also scans communication ports on the receiver to identify connected devices. If the software cannot automatically identify the connected component, for example, a GPS antenna, it offers options (often with graphics) to help you manually select the correct component.

The SCS900 Site Controller software allows you to set operational tolerances and settings (such as those shown below), which must be achieved before measurements can be accepted. When outside of these tolerances, the SCS900 Site Controller software warns you through on-screen messages or indications, and the nonautomatic acceptance of recorded positions. To set operational tolerances, go to the the Settings menu in the SCS900 Site Controller software.

Ctrl+M to open this screen and change the angle below which the receiver will not track satellites

Example 2: Use the Sky Plot screen toExample 1: From the Sky Plot screen, press set if the receiver will track GLONASS satellites

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Configuring the receiver to log data for postprocessing

The SPS GPS receivers do not come equipped with the Data Logging option. The receivers can have this added either at the time of purchase, or at a later date as an option. With the Data Logging option enabled, the receiver has available memory that facilitates the collection of GPS observations over a period of time, and that can be used with GPS postprocessing software such as the Trimble Geomatics Office computation of control networks and baselines.

Note – The SCS900 system does not support postprocessed applications. Trimble recommends that you use either the front panel keypad and display, the Web User Interface, or (SPS770, SPSx80 only) the GPS Configurator software to configure the receiver for postprocessed measurement sessions.

Configuring Ethernet settings

The SPSx50 receiver has an Ethernet port so that the receiver can connect to an Ethernet network. You can use the Ethernet network to access, configure, and monitor the receiver. No serial cable connection to the receiver is necessary.

The SPSx50 receiver requires the following Ethernet settings:

™

for the

• IP setup: Static or DHCP

• IP address

• Netmask

• Broadcast

• Gateway

• DNS address

• HTTP port

The default setting for the HTTP port is 80. The HTTP port is not assigned by the network. HTTP port 80 is the standard port for web servers. This allows you to connect to the receiver by entering only the IP address of the receiver in a web browser. If the SPSx50 receiver is set up to use a port other than 80, you will need to enter the IP address followed by the port number in a web browser.

Example of connecting to the receiver using port 80: http://169.254.1.0

Example of connecting to the receiver using port 4000: http://169.254.1.0:4000

The default setting of the SPSx50 receiver is to use DHCP. Using DHCP enables the receiver to obtain the IP address, Netmask, Broadcast, Gateway, and DNS address from the network.

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7 Configuring the Receiver Settings

When an SPSx50 receiver is connected to a network using DHCP, an IP address is assigned to the receiver by the network. To verify the IP address of the receiver, select the up button from the keypad when the Home screen is displayed. The Ethernet IP address appears as shown.

If your network installation requires the receiver to be configured with a static IP address, you can configure the Ethernet settings using the web server or the WinFlash utility. The web server can be only used when the receiver is connected to a network and has a valid Ethernet configuration.

Use the WinFlash utility to configure the Ethernet settings of a receiver that is to be connected to a network that requires static IP addresses:

1. Contact the network administrator for the correct settings for the SPSx50 receiver.

2. Connect the SPSx50 receiver to a computer running the WinFlash utility using the serial cable provided with the receiver.

3. Turn on the SPSx50 receiver.

4. On the computer, start the WinFlash utility.

5. From the Device Configuration screen, select Trimble SPSx50 Receiver. From the PC serial port list, select the appropriate PC serial port. Click

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Configuring the Receiver Settings 7

6. From the Operation Selection screen, select Configure ethernet settings, and then

click

7. From the Settings Review screen, click

Finish:

Once the WinFlash utility connects to the receiver, the Ethernet Configuration dialog appears.

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7 Configuring the Receiver Settings

8. Enter the network settings in the Ethernet Configuration dialog. Click OK:

The Broadcast setting is the IP address that is used to broadcast to all devices on the subnet. This is usually the highest address (usually 255) in the subnet.

Configuring the SPSx50 receiver using a web browser

The SPSx50 receiver can be configured using the keypad and display, Trimble SCS900 Site Controller software, or a web browser. This section describes how to set up the receiver using a web browser.

Supported browsers

• Mozilla Firefox version 1.07 or later (version 1.50 is recommended for Windows,

Macintosh, and Linux operating systems)

• Microsoft Internet Explorer version 6.00 or later for Windows operating systems

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Configuring the Receiver Settings 7

To connect to the receiver using a web browser:

1. Enter the IP address of the receiver into the address bar of the web browser as shown:

2. If security is enabled on the receiver, the web browser prompts you to enter a username and password:

The default login values for the SPSx50 receiver are:

– User Name: admin

– Password: password

If you cannot connect to the receiver, the password for the root account may have been changed, or a different account may be being used. Contact your receiver administrator for the appropriate login information.

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7 Configuring the Receiver Settings

Once you are logged in, the welcome web page (see Figure 7.1) appears.

Available languages

Menus

Model name of receiver

Serial number of receiver

Figure 7.1 SPS GPS receiver Home webpage

Changing the settings

Use the webpage to configure the receiver settings. The web interface shows the configuration menus on the left of the browser window, and the settings on the right. Each configuration menu contains related submenus to configure the receiver and monitor receiver performance.

Note – The configuration menus available vary based on the version of the SPSx50 receiver.

A summary of each configuration menu is provided here. For more detailed information about each of the receiver settings, select the Help menu.

To display the web interface in another language, click the corresponding country flag. The web interface is available in the following languages:

•English •Italian

•German •Russian

•French •Chinese

•Spanish •Japanese

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Configuring the Receiver Settings 7

Receiver Status menu

The Receiver Status menu provides a quick link to review the receiver’s available options, current firmware version, IP address, temperature, runtime, satellites tracked, current outputs, available memory, position information, and more.

This figure shows an example of the screen that appears when you select Receiver Status / Identity.

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7 Configuring the Receiver Settings

Satellites menu

Use the Satellites menu to view satellite tracking details and enable/disable GPS, GLONASS, and SBAS (WAAS/EGNOS and MSAS) satellites.

Note – To configure the receiver for OmniSTAR, use the OmniSTAR menu. See page 82.

This figure shows an example of the screen that appears when you select Satellite / Tracking (Sky Plot).

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Configuring the Receiver Settings 7

Data Logging menu

Use the Data Logging menu to set up the SPSx50 receiver to log static GPS data. This menu is available only if the receiver has the Data Logging option enabled. You can also configure settings such as observable rate, position rate, continuous logging, continuous logging rate, and whether to auto delete old files if memory is low.

This figure shows an example of the screen that appears when you select Data Logging / Configuration.

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7 Configuring the Receiver Settings

Receiver Configuration menu

Use the Receiver Configuration menu to configure such settings as elevation mask and PDOP mask, the antenna type and height, the reference station position, and the reference station name and code.

This figure shows an example of the screen that appears when you select Receiver Configuration / Summary.

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Configuring the Receiver Settings 7

I/O Configuration menu

Use the I/O Configuration menu to set up all outputs of the SPSx50 receiver. The receiver can output CMR, RTCM, NMEA, GSOF, RT17, or BINEX messages. These messages can be output on TCP/IP, UDP, serial, Bluetooth, or radio ports.

This figure shows an example of the screen that appears when you select I/O Configuration / Port Summary.

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7 Configuring the Receiver Settings

Bluetooth menu

Use the Bluetooth menu to configure the receiver to connect to other Trimble devices that use Bluetooth wireless technology. These devices can be used to configure the receiver, and generate or receive corrections. The following Trimble devices can be connected to the SPSx50 receiver using Bluetooth wireless technology:

• TSC2 controller

• TCU controller

• TSCe controller

• ACU controller

• SNB900 radio-modem

• Other Bluetooth-enabled SPS GPS receivers

This figure shows an example of the screen that appears when you select Bluetooth / Info.

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Configuring the Receiver Settings 7

Radio menu

Use the Radio menu to configure the internal radio of the receiver, if applicable. The SPSx50 receivers are available with 410–430 MHz, 430–450 MHz, 450–470 MHz, or 900 MHz radios. The SPS550H receiver does not have an internal radio.

This figure shows an example of the screen that appears when you select Radio.

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7 Configuring the Receiver Settings

OmniSTAR menu

All SPSx50 receivers, except the SPS550H, can receive OmniSTAR corrections. By default, OmniSTAR tracking is turned on in the receiver. To receive OmniSTAR corrections, you must set the receiver to track OmniSTAR satellites and it must have a valid OmniSTAR subscription. The receiver can position with OmniSTAR XP or HP. To purchase a subscription for your receiver, contact OmniSTAR at:

www.OmniSTAR.com North & South America, 1-888-883-8476 or 1-713-785-5850 Europe & Northern Africa, 31-70-317-0900 Australia & Asia, 61-8-9322 5295 Southern Africa, 27 21 552 0535

This figure shows an example of the screen that appears when you select OmniSTAR / Configuration.

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Configuring the Receiver Settings 7

Internet Configuration menu

Use the Internet Configuration menu to configure Ethernet settings, e-mail alerts, PPP connection, HTTP port, FTP port, and VFD port settings of the receiver. For information on the Ethernet settings, see Configuring Ethernet settings, page 69.

The VFD port allows you to use the SPSx50 Remote Control application to view and navigate the SPSx50 receiver through a mock display and keypad interface. To allow the SPSx50 Remote Control to connect to the receiver, you need to enable the VFD port. To do this, select Internet Configuration / VFD.

This figure shows an example of the screen that appears when you select Internet Configuration / Ethernet.

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7 Configuring the Receiver Settings

Security menu

Use the Security menu to configure the login accounts for all users who will be permitted to configure the SPSx50 receiver using a web browser. Each account consists of a username, password, and permissions. Administrators can use this feature to limit access to other users. Security can be disabled for a receiver. However, Trimble discourages this as it makes the receiver susceptible to unauthorized configuration changes.

This figure shows an example of the screen that appears when you select Security / Configuration.

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Configuring the Receiver Settings 7

Firmware menu

Use the Firmware menu to verify the current firmware and load new firmware to the SPSx50 receiver. You can upgrade firmware across a network or from a remote location without having to connect to the receiver with a serial cable.

This figure shows an example of the screen that appears when you select Firmware.

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7 Configuring the Receiver Settings

Help Menu

The Help menu provides information on each of the receiver settings available in a web browser. Selecting the Help menu opens new windows. Select the section of the Help that you want to view. The Help files are stored on the Trimble Internet site and are updated between firmware releases. If you do not have access to the Internet, there is also a copy of the receiver Help files on the Trimble SPS GPS Receiver CD. (This copy shows the Help files as they were when the CD was published).

This figure shows an example of the screen that appears when you select Help.

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CHAPTER

Automatically Setting up a Mobile Base Station Using AutoBase Technology

In this chapter:

Q AutoBase Warning

Q Working with AutoBase

technology

Q Scenario One: First visit to a

site with AutoBase Warning turned off

Q Scenario Two: First visit to a

site with AutoBase Warning turned on

Q Scenario Three: Repeat visit

to a site with AutoBase Warning turned off

Q Scenario Four: Repeat visit

to a site with AutoBase Warning turned on

Q Flowchart showing the AutoBase

process

The AutoBase technology is a feature of the Trimble SPSx50 receivers that enables you to reduce daily setup time for mobile base stations and to reduce the likelihood of using incorrect base station coordinates during setup.

The AutoBase feature allows you to set up a SPSx50 receiver as a base station receiver and save you time so you do not need to reconfigure the receiver at the start of each day. It also allows you to set up the base station on a new site without needing to configure the settings in the receiver.

Even if you have used the AutoBase feature in other Trimble receivers, Trimble recommends that you read this chapter carefully because new functions in this feature provide greater benefit to you.

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8 Automatically Setting up a Mobile Base Station Using AutoBase Technology

AutoBase Warning

The AutoBase Warning, when enabled, prevents the receiver from creating a new base station position and begin operating as an RTK base station when no previous base station position exists that corresponds to the current position of the receiver.

When the AutoBase Warning is on, the receiver will not begin transmitting RTK corrections from a base position (latitude, longitude, and height) that is not a part of the GPS site calibration. When the AutoBase Warning is off, the receiver begins transmitting RTK corrections from a new base position. You need only turn on the receiver the first time on a point, and you do not need to manually configure the base station settings.

By default, the SPSx50 receivers have the AutoBase Warning turned on. The receiver uses the AutoBase Warning setting to control how the receiver performs when different criteria are met. You can turn the AutoBase Warning on or off using the keypad and display. For more information, see Configuring system settings, page 65.

Working with AutoBase technology

This section contains some example scenarios. In each section, there is a step-by-step process that explains what you will experience in each scenerio.

Scenario One: First visit to a site with AutoBase Warning turned off

The following actions occur when you set up the base station for the first time on a new point and the AutoBase Warning is turned off:

1. Turn on the receiver.

2. The receiver begins tracking satellites.

3. The receiver determines the current position.

4. The receiver reviews the previous base station positions stored in the receiver.

5. The receiver does not find any base station that corresponds to the current position.

6. The receiver creates a new base station location for the current location.

7. The receiver sets the antenna height to 0. The antenna height is measured to the antenna phase center.

CAUTION – On each reoccupation of the point, you must ensure that the receiver antenna is set up in exactly the same location and at exactly the same height. Trimble also recommends that you use a T-bar or Fixed height tripod so that the position is easy to re-establish. Failure to achieve the same height position for the antenna results in errors in heights in subsequent measurements.

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Automatically Setting up a Mobile Base Station Using AutoBase Technology 8

Where you set up each time with potentially different antenna heights, Trimble recommends that on the first setup after AutoBase has completed its process, that you edit the antenna height (using the receiver keypad and display). The updated antenna height changes the AutoBase setup, so that on subsequent setups, when you again change the antenna height, you will get correct height information during measurement. At the first setup, Trimble recommends that you change the AutoBase setup and antenna height before you carry out a site calibration.

8. The receiver begins generating RTK CMR+ corrections.

9. The RTK corrections begin streaming over the internal radio. If there is no internal radio, the receiver defaults to streaming the corrections on the Lemo port.

Scenario Two: First visit to a site with AutoBase Warning turned on

The following actions occur when you set up the base station for the first time on a point, and the AutoBase Warning is turned on:

1. Turn on the receiver.

2. The receiver begins tracking satellites.

3. The receiver determines the current position.

4. The receiver reviews the base positions stored in the receiver.

5. The receiver does not find any base station that corresponds to the current position.

6. The receiver displays a warning that AutoBase has failed.

7. No RTK corrections are streamed until the base station is set up using the keypad and display or an SCS900 controller.

Scenario Three: Repeat visit to a site with AutoBase Warning turned off

The following actions occur when you repeat a base station setup on a point, and the AutoBase Warning is turned off:

1. Turn on the receiver.

2. The receiver begins tracking satellites.

3. The receiver determines the current position.

4. The receiver reviews the base station positions stored in the receiver.

5. The receiver finds a base station position that corresponds to the current position.

6. The receiver loads the previous base information.

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8 Automatically Setting up a Mobile Base Station Using AutoBase Technology

7. The antenna type, antenna height and measurement method used in the previous setup of this base station are applied.

CAUTION – If the antenna height is different to the previous setup, then you must enter the corrected height for the antenna (using the keypad and display) before starting measurements. Failure to achieve the correct antenna height position for the antenna results in errors in heights in subsequent measurements.

8. The receiver begins generating RTK CMR+ corrections.

9. The RTK corrections begin streaming on the radio or port defined in the application file.

Scenario Four: Repeat visit to a site with AutoBase Warning turned on

The following actions occur when you repeat a base station setup on a point, and the AutoBase Warning is turned on:

1. Turn on the receiver.

2. The receiver begins tracking satellites.

3. The receiver determines the current position.

4. The receiver reviews the base station positions stored in the receiver.

5. The receiver finds a base station position that corresponds to the current position.

6. Since a base station position is found, the AutoBase warning does not appear.

7. The receiver loads the previous base information.

8. The antenna type, antenna height, and measurement method used in the previous setup of this base station are applied.

CAUTION – If the antenna height is different from the previous setup, then you must enter the corrected height for the antenna (using the keypad and display) before starting measurements. Failure to achieve the correct antenna height position for the antenna results in errors in heights in subsequent measurements.

9. The receiver begins generating RTK CMR+ corrections.

10. The RTK corrections begin streaming on the radio or port defined in the previous setup of this base station.

Note – Autobase recalls base station positions that are stored in the receiver. If the receiver has been previously set up on a control point but the stored base station position is not found in the receiver, it is possible that the information may have accidently been deleted. In this case, use the display and keypad or the SCS900 system to manually set up the base station. Make sure that you use the same base station latitude, longitude, and height as in the previous setup otherwise you will experience position or height errors in all subsequent measurements.

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Automatically Setting up a Mobile Base Station Using AutoBase Technology 8

Trimble recommends that after any new base station setup, or at the start of each measurement session, you measure a known point to verify that position and height errors are within tolerance. This is good practice and it takes just a few seconds to eliminate potentially gross errors typically associated with repeated daily base station setups.

Flowchart showing the AutoBase process

Figure 8.1 shows the AutoBase process.

Power On

Receiver

looks for

application

files

application

files exist?

AutoBase

Warning

On or Off?

Display

AutoBase

Warning

Figure 8.1 Autobase feature

Off

Create new

application

file

Save new

application

file with

“Auto” base

name

Make new

“Auto”

application

file active

Ye s

Any

application

file that

corresponds

with the current

position?

Make

corresponding

application

file active

Ye s

Is there more

than one acceptable application

file?

Ye s

Make most

recently created

application

active

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8 Automatically Setting up a Mobile Base Station Using AutoBase Technology

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CHAPTER

Default Settings 9

In this chapter:

Q Default receiver settings

Q Resetting the receiver to factory

defaults

Q Data Logging option

All settings are stored in application files. The default application file, Default.cfg, is stored permanently in the receiver, and contains the factory default settings for the SPSx50. Whenever the receiver is reset to its factory defaults, the current settings (stored in the current application file, Current.cfg) are reset to the values in the default application file.

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9 Default Settings

Default receiver settings

These settings are defined in the default application file.

Function Factory default

SV Enable All SVs enabled

General Controls: Elevation mask 10°

Lemo Port: Baud rate 38,400

Modem Port: Baud rate 38,400

Input Setup: Station Any

NMEA/ASCII (all supported messages) All ports Off

Streamed output All types Off

RT17/Binary All ports Off

Reference position: Latitude 0°

Antenna: Type Zephyr Geodetic Model 2

PDOP mask 7

RTK positioning mode Low Latency

Motion Kinematic

Format 8-None-1

Flow control None

Format 8-None-1

Flow control None

Offset = 00

Longitude 0°

Altitude 0.00 m HAE (Height above ellipsoid)

Height (true vertical) 0.00 m

Measurement method True vertical

Resetting the receiver to factory defaults

To reset the receiver to its factory defaults, press E for 35 seconds.

Data Logging option

By default, the Data Logging option is turned off in SPS GPS receivers. If you choose to log data using a GPS receiver, you must enable the option and acquire suitable GPS postprocessing software, such as the Trimble Geomatics Office information, please contact your Trimble dealer.

Postprocessed GPS data is typically used for control network measurement applications and precise monitoring. GPS measurement data is collected over a period of time at a static point or points and then postprocessed to accurately compute baseline information.

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Default Settings 9

Logging data after a power loss

If power is unexpectedly lost while the receiver is logging data, once power is restored, the receiver tries to return to the state it was in immediately before the power loss. The receiver does not reset itself to default settings.

If the receiver was logging data when power was lost, data logging is not resumed. To resume data logging after a power loss:

1. Restart the receiver. When power is cycled on the receiver, the receiver will turn on but with data logging off.

2. Use the web browser or the keypad and display to turn data logging back on.

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9 Default Settings

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CHAPTER

Specifications 10

In this chapter:

Q General specifications

Q Physical specifications

Q Electrical specifications

Q Communication specifications

Q GPS satellite signal tracking

Q Integrated radio options

Q Variable configuration options

This chapter details the specifications for the SPSx50 GPS receiver.

Specifications are subject to change without notice.

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10 Specifications

General specifications

Feature Specification

Keyboard and display VFD display 16 characters by 2 rows

On/Off key for one button startup using AutoBase technology Escape and Enter key for menu navigation 4 arrow keys (up, down, left, right) for option scrolls and data entry

Receiver type Modular GPS receiver

Antenna type Base station Rover

Zephyr Geodetic Model 2 Zephyr Model 2 Also supports legacy antennas Zephyr, Zephyr Geodetic, Micro-Centered

Choke ring, Rugged Micro-Centered.

Physical specifications

Feature Specification

Dimensions (LxWxH) 24 cm (9.4 in) x 12 cm (4.7 in) x 5 cm (1.9 in) including connectors

Weight 1.65 kg (3.64 lbs) receiver with internal battery and radio

1.55 kg (3.42 lbs) receiver with internal battery and no radio

Temperature

Operating Storage

Humidity 100%, condensing

Waterproof IP67 for submersion to depth of 1 m (3.28 ft)

Shock and vibration

Shock, non operating

Shock, operating Vibration

Measurements • Advanced Trimble Maxwell

Code differential GPS positioning

Horizontal accuracy Vertical accuracy

WAAS/EGNOS, and MSAS

Horizontal accuracy Vertical accuracy

–40 °C to +65 °C (–40 °F to +149 °F) –40 °C to +80 °C (–40 °F to +176 °F)

Tested and meets the following environmental standards: Designed to survive a 2 m (6.6 ft) pole drop onto concrete

MIL-STD-810F, Fig.514.5C-17 To 40 G, 10 msec, saw-tooth MIL-STD-810F, FIG.514.5C-17

™

Custom GPS chip

• L2C Civil signal and L5 signal for GPS modernization (SPS850 Extreme only)

• Very low noise L1, L2, and L5 carrier phase measurements with <1 mm precision in a 1 Hz bandwidth

• Proven Trimble low elevation tracking technology

• 72 Channels L1 C/A Code, L2C, L5C, L1/L2/L5 Full Cycle Carrier, GLONASS L1/L2 (L2C, L5 and GLONASS L1/L2 tracking capability available only in the SPS850 Extreme only)

• WAAS/EGNOS, and MSAS

±(0.25 m + 1 ppm) RMS, ± (9.84 in + 1 ppm) RMS ±(0.50 m + 1 ppm) RMS, ± (19.68 in + 1 ppm) RMS

Typically <1 m (3.28 ft) Typically <5 m (16.40 ft)

™

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Specifications 10

Feature Specification

OmniSTAR Positioning

XP Service Accuracy HP Service Accuracy

Horizontal 20 cm (7.87 in), Vertical 30 cm (11.80 in) Horizontal 10 cm (3.93 in), Vertical 15 cm (5.90 in)

Real Time Kinematic (RTK) positioning

Horizontal Vertical

±(10 mm + 1 ppm) RMS, ± (0.38 in +1 ppm) RMS ±(20 mm + 1 ppm) RMS, ± (0.78 in +1 ppm) RMS

Initialization time

Regular RTK operation

Single/Multi-base minimum 10 sec + 0.5 times baseline length in km, <30 km

with base station

RTK operation with

<30 seconds typical anywhere within coverage area Scalable GPS infrastructure

Initialization reliability

Receiver will operate normally to –40 °C. Bluetooth module and internal batteries are rated to –20 °C.

Accuracy and reliability may be subject to anomalies such as multipath, obstructions, satellite geometry, and

atmospheric conditions. Always follow recommended practices.

Depends on WAAS/EGNOS, and MSAS system performance.

May be affected by atmospheric conditions, signal multipath, and satellite geometry. Initialization reliability is

continuously monitored to ensure highest quality

Typically >99.9%

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10 Specifications

Electrical specifications

Feature Specification

Power

Internal

Integrated internal battery 7.4 V, 7800 mA-hr, Lithium-ion Internal battery operates as a UPS in the event of external power source outage

Internal battery will charge from external power source when input voltage is >15 V

Integrated charging circuitry

External

Power consumption <6 W, in RTK rover mode with internal receive radio

Base station operation times on internal battery

Rover operation time on internal battery

450 MHz 900 MHz

Base station operation times on internal battery

450 MHz 900 MHz

Certification Part 15.247 and Part 90 FCC certifications

Power input on Lemo 7P0S is optimized for lead acid batteries with a cut off threshold of 10.5 V

Power input on the 26-pin DSub connector is optimized for Trimble Lithium-ion battery input (P/N 49400) with a cut-off threshold of 9 V

Power source supply (Internal / External) is hot swap capable in the event of power source removal or cut-off

9 V to 30 V DC external power input with over-voltage protection Receiver will auto power on when connected to external power of 15 V or

greater

<8 W in RTK Base mode with internal transmit radio

Typically 8–10 hours based on transmitter power, types of messages transmitted, and temperature

12 hours; varies with temperature 12 hours; varies with temperature

10 hours; varies with temperature 10 hours; varies with temperature

Class B Device FCC Part 15 and ICES-003 certifications RSS-310, RSS-210 and RSS-119 Industry Canada certifications ACMA AS/NZS 4295 approval CE mark compliance C-tick mark compliance UN ST/SG/AC.10.11/Rev. 3, Amend. 1 (Li-Ion Battery) UN ST/SG/AC. 10/27/Add. 2 (Li-Ion Battery) WEEE

100 SPSx50 Modular GPS Receiver User Guide

Trimble 5580090 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Legal Notices

Safety Information

Regulations and safety

Type approval

Exposure to radio frequency radiation

For 450 MHz radio

For license-free 900 MHz radio

For Bluetooth radio

Installing antennas

Battery safety

Contents

Introduction 1

SPS550 GPS receiver

SPS550H GPS receiver

About the SPSx50 receivers

SPS750 GPS receiver

SPS850 Extreme GPS receiver

Related Information

Technical Support

Your Comments

Features and Functions 2

SPS550 features

SPS550H features

SPS750 features

SPS750 standard features

SPS750 Basic

SPS750 Max

SPS850 Extreme features

Base station

Rover

Use and care

COCOM limits

Keypad and display

Rear connectors

Batteries and Power 3

External power

Battery safety

Battery performance

Charging the Lithium-ion battery

Storing the Lithium-ion battery

Removing the rechargeable Lithium-ion battery

Operating the receiver with a Trimble controller

Setup Guidelines 4

Base station operation guidelines

Base station components

Base station setup guidelines

Permanent installation antenna cabling for the SPSx50 Modular GPS receiver and SPS770 GPS receiver

Rover operation guidelines

Rover receiver components

Rover receiver setup guidelines

Setting up the Receiver 5

Connecting the receiver to external devices

Trimble controller with SCS900 Site Controller software

External radio-modems

Common ways to set up a base station

Setting up a base station for permanent or semi-permanent installation

Setting up a base station for daily site use: T-Bar

Setting up a mobile base station: Tripod and fixed height tripod

Common ways to set up a rover receiver

Setting up the rover receiver on a jobsite vehicle

Setting up the rover receiver on a rod

Setting up a rover receiver on a belt or in a backpack

Setting up a pair of SPSx50 GPS receivers to provide heading

The Moving Baseline RTK positioning technique

Mounting a pair of SPSx50 GPS receivers

Assembling the receivers

Installing the receiver

Mounting the antennas

Configuring the receiver pair

Interfacing using the NMEA protocol

Configuring the SPSx50 Using the Keypad and Display

Button functions

Power button operations

Home screen

Status screens

Configuring the SPSx50 as a base receiver