background image

Epoch 25 L1/L2 GPS System User Guide     

31

Specifications     

5

5.3

Technical specifications

 

Feature

Specification

Tracking

24 channels GPS L1 C/A code, L1/L2 full-cycle carrier,

SBAS WAAS/EGNOS support

a

a

WAAS/EGNOS capable GPS receiver dependant on field software application.

Signal processing

Highly accurate GPS L1/L2 technology

Unfiltered, unsmoothed pseudorange measurements data for low 
noise, low multipath error, low time domain correlation and high 
dynamic response

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

Low elevation satellite tracking technology

24 channels L1 C/A Code, L1/L2 Full Cycle Carrier, WAAS/EGNOS

*

Start-up

Cold start: < 60 seconds from power on

Warm start: < 30 seconds with recent ephemeris

Initialization

Automatic while moving or static

Minimum 
initialization time

10 sec + 0.5 

×

 baseline length (km)

Communications

Two RS-232 serial ports (Port 1, Port 2,)

Port 1: Baud Rates up to 115,200 bps

Port 2: Baud Rates up to 115,200 bps

Bluetooth

Type approvals are country specific. Third party Bluetooth dongles are 
not recommended and are not supported.  For more information, 
contact your Spectra Precision dealer.

Содержание Epoch 25 L1

Страница 1: ...USER GUIDE Spectra Precision Epoch 25 L1 L2 GPS System...

Страница 2: ......

Страница 3: ...Version 2 31 Revision B Part number 58808 10 February 2007 Epoch 25 L1 L2 GPS System USER GUIDE...

Страница 4: ...rranty Card included with this Spectra Precision product or consult your Spectra Precision dealer Features Disclaimer Not all features are available in the Static Only variant of the Epoch 25 receiver...

Страница 5: ...WARNING Do not damage the rechargeable Lithium Polymer 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...

Страница 6: ...y 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 internal battery of the rover only with the charger that is sup...

Страница 7: ...ors 12 Parts of the rover receiver 13 Ports and connectors 13 Setup guidelines 14 Environmental conditions 14 Sources of electrical interference 14 Base setup 14 Other system components 16 Rover setup...

Страница 8: ...hysical specifications 30 Positioning specifications 30 Technical specifications 31 6 Default Settings 33 Default settings 34 Default behavior 34 Resetting to factory defaults 34 7 Cables and Connecto...

Страница 9: ...ual describes how to install set up and use a Spectra Precision Epoch 25 GPS receiver Even if you have used other Global Positioning System GPS products before Spectra Precision recommends that you sp...

Страница 10: ...xternal wireless device enables cable free communications between receiver and controller The receiver provides 24 channels L1 C A code L1 L2 full cycle carrier WAAS EGNOS and L1 L2 full cycle carrier...

Страница 11: ...iver operations For more information contact your Spectra Precision dealer 1 4 COCOM limits The U S Department of Commerce requires that all exportable GPS products contain performance limitations so...

Страница 12: ...ision com register register shtml Contact your local Spectra Precision dealer for more information about the support agreement contracts for software and firmware and an extended warranty program for...

Страница 13: ...A P T E R 2 Epoch 25 L1 L2 GPS System User Guide 11 Setup Connection and Cabling 2 In this chapter Q Parts of the base receiver Q Parts of the rover receiver Q Setup guidelines Q Base setup Q Rover se...

Страница 14: ...and connectors Figure 2 1 shows the two serial ports one TNC radio antenna connector and the 5 8 11 threaded insert Figure 2 1 Ports and connectors on the base receiver Port 1 is a DE 9 male connector...

Страница 15: ...behavior page 22 22 1 Ports and connectors Figure 2 2 shows the two serial ports one TNC radio antenna connector one BNC radio antenna connector and the 5 8 11 threaded insert Figure 2 2 Ports and co...

Страница 16: ...it in water expose the unit to corrosive fluids and gases 23 2 Sources of electrical interference Avoid the following sources of electrical and magnetic noise Gasoline engines spark plugs Televisions...

Страница 17: ...the antenna to the base receiver and place the antenna on the tripod 4 Install the antenna receiver and extension pole onto the tribrach You can either place the receiver in the transport case or belo...

Страница 18: ...ely connect a BNC cable align the cable connector with the antenna receptacle and then turn the antenna until the antenna fits snugly To securely connect a TNC cable align the cable connector with the...

Страница 19: ...use the field software on the Recon controller For more information see the documentation for the field software By default the internal radio has only a few test frequencies installed at the factory...

Страница 20: ...2 Setup Connection and Cabling 18 Epoch 25 L1 L2 GPS System User Guide...

Страница 21: ...controls Q Logging data Q Resetting to defaults Q Firmware This section describes how to use the Epoch 25 GPS receiver as well as the controls on the bottom panel that you need for general operation F...

Страница 22: ...Do not drop or puncture the battery Do not open the battery or short circuit its contacts 31 1 Rover receiver Note Only the rover has an internal battery The rover receiver can be powered by its inte...

Страница 23: ...in the product documentation Charging the internal battery The internal Lithium Polymer battery in the rover receiver is supplied partially charged Charge the battery completely before using it for t...

Страница 24: ...ditions Generally a lit or slowly flashing LED one that is on or a slow flash indicates normal operation an LED that is flashing quickly a fast flash indicates a condition that may require attention a...

Страница 25: ...memory The filenames must be in 8 3 format otherwise files copied to the internal memory may cause data corruption or loss of data when logging Data is logged using the current logging settings confi...

Страница 26: ...ntrol when logging occurs Data is stored in DAT files which can be transferred to an office computer using the Microsoft ActiveSync technology For more information refer to the user guide for your par...

Страница 27: ...5 L1 L2 GPS System User Guide 25 Software Utilities 4 In this chapter Q The WinFlash utility Q Radio configuration This chapter provides information on the software utilities that you can use with the...

Страница 28: ...rmware installed If a later version becomes available you can upgrade the firmware on your receiver The WinFlash utility which has a comprehensive Help file guides you through the firmware upgrade pro...

Страница 29: ...k OK The Software Upgrade window appears again and states that the operation was completed successfully 9 Click Menu to select another operation or click Exit to quit WinFlash 10 If you click Exit ano...

Страница 30: ...4 Software Utilities 28 Epoch 25 L1 L2 GPS System User Guide...

Страница 31: ...C H A P T E R 5 Epoch 25 L1 L2 GPS System User Guide 29 Specifications 5 In this chapter Q Physical specifications Q Positioning specifications Q Technical specifications...

Страница 32: ...20 V DC with over voltage protection on Port 1 and Port 2 Operating temperaturea aReceiver will operate normally to 20 C 4 F Internal batteries are rated to 20 C 4 F 20 C through 60 C 4 F to 140 F Sto...

Страница 33: ...L1 and L2 carrier phase measurements with 1 mm precision in a 1 Hz bandwidth Low elevation satellite tracking technology 24 channels L1 C A Code L1 L2 Full Cycle Carrier WAAS EGNOS Start up Cold star...

Страница 34: ...5 Specifications 32 Epoch 25 L1 L2 GPS System User Guide...

Страница 35: ...Q Default settings Q Resetting to factory defaults All Epoch 25 GPS receiver settings are stored in application files The default application file is stored permanently in the receiver and contains th...

Страница 36: ...factory defaults 6 2 Resetting to factory defaults To reset the receiver to its factory defaults turn the unit on and off Function Factory default SV Enable All SVs enabled General Controls Elevation...

Страница 37: ...and 2 connectors Q Power serial data cables This chapter provides pinout information for the Epoch 25 GPS receiver standard and optional cables This information can be used to prepare special cables...

Страница 38: ...a I O cable for firmware upgrades to the receiver Supply power must be supplied to the receiver through Port 1 or Port 2 or from the internal battery Port 1 Port 2 Pin Function Pin Function 1 N C 1 N...

Страница 39: ...A P P E N D I X A Epoch 25 L1 L2 GPS System User Guide 37 RTCM Output A In this chapter Q Generated messages Q Message scheduling...

Страница 40: ...2 1 3 18 19 22 59 RTK Only 2 2 3 18 19 22 59 RTCM RTK 2 1 1 3 18 19 22 59 RTK Only 2 1 3 18 19 22 59 RTCM RTK 3 00 1004 1006 1008 1013 Type Frequency 1 Every second 3 The 10th second after the first...

Страница 41: ...A P P E N D I X B Epoch 25 L1 L2 GPS System User Guide 39 Troubleshooting B In this chapter Q LED conditions Q Receiver issues...

Страница 42: ...LED is not flashing The receiver is tracking fewer than four satellites Wait until the SV Tracking LED is flashing slowly The radio antenna cable and GPS antenna cable are mixed up Make sure that the...

Страница 43: ...the charge and connections Roving receiver is not receiving radio Reference receiver is not broadcasting Use field software to check radio frequency settings Incorrect over air baud rates between refe...

Страница 44: ...B Troubleshooting 42 Epoch 25 L1 L2 GPS System User Guide...

Страница 45: ...settings antenna 34 baud rate 34 elevation mask 34 motion 34 receiver 33 reference position 34 reference station 34 resetting 24 serial format 34 SV enabling 34 dimensions receiver 30 E electrical in...

Страница 46: ...ol 34 Port 2 default baud rate 34 default serial format 34 port settings checking 41 ports and connectors base receiver 12 rover receiver 13 positioning specifications 30 power supply 20 powering down...

Страница 47: ...g range 30 storage range 30 TNC radio antenna connector 13 tracking specifications 31 troubleshooting 39 40 turning off the receiver 22 turning on the receiver 22 U U S Department of Commerce 9 upgrad...

Страница 48: ...Index 46 Epoch 25 L1 L2 GPS System User Guide...

Страница 49: ......

Страница 50: ...Spectra Precision 10355 Westmoor Drive Suite 100 Westminster CO 80021 USA 1 720 587 4700 Phone 888 477 7516 Toll Free in USA www spectraprecision com PN 58808 10...

Отзывы: