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Survey P

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Survey Planning

17

GPS under Trees

GPS receivers are not at their best in forests. Signals from the GPS constellation must
be able to reach the receiver for it to produce a position fix. If you’re behind a ridge,
building, or other solid mass, those signals won’t get through. Trees, on the other
hand, vary in their ability to obscure and disrupt the acquisition of position fixes.
Your ability to obtain a fix depends on issues such as crown closure, stand density,
elevation of satellites, and leaf type. Laser Range Finders often work very well in this
situation.

With proper planning you should be able to get fixes just about anywhere. You should
collect data when satellites are high in the sky. More satellites overhead means less
chance for signal blockage by tree trunks, the real culprits in forest-region survey
work. For best results the receiver should be in the open, but with proper planning you
should be successful wherever you go. Take a 50-meter steel tape and good compass
when you’re in difficult areas. If you can’t get a position fix in a particular spot,
measure out an offset and enter the value in the Field Asset Management software.
The offset position automatically makes corrections in the post-processing
calculations.

Frequently Asked Questions

Q: What is stored in the FS/2 and what is stored in the receiver?

A: The FAMlog program, the feature files, and the waypoint files are stored in the FS/
2. Issuing the DOS

dir

command displays all files located in the FS/2. GPS

measurement data and descriptions of features logged in the field are stored in the
receiver.

Q: How long does receiver memory last?

A: For an average of six satellites, the standard 4.5 Mb storage of the receiver records
continuous GPS measurements at a one-second interval for about 8 hours. At a five-
second recording interval, the receiver records data continuously for about 40 hours.
Logging position-only data (no post-processing) allows over 40 times the
aforementioned durations.

Q: What recording interval should I use?

A: If you want to produce detailed lines and areas, use the shortest interval, one
second. However, a one-second interval quickly fills the receiver memory. Longer
sessions can be recorded using a recording interval of two or five seconds, but lines

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Содержание Reliance FS/2

Страница 1: ...Numbers Main Voice 408 524 1400 Fax 408 524 1500 Sales US 800 922 2401 International 408 524 1670 Fax 408 524 1500 Europe Voice 44 993 883 533 Fax 44 993 883 977 Support US 800 229 2400 International...

Страница 2: ...ii Reliance with FS 2 Field Operations Manual FS 2 Screen Map...

Страница 3: ...with regard to this publication and the computer programs are subject to the restrictions and limitations imposed by the cop yright laws of the United States of America U S A and or the jurisdiction i...

Страница 4: ...ntain valuable trade secret and confidential information proprietary to LICENSOR and its third party suppliers You agree to exercise reasonable efforts to protect the proprietary interests of LICENSOR...

Страница 5: ...in warranty contract tort including negligence strict liability or otherwise even if LICENSOR or its third party suppliers have been advised of the possibility of such claim or damages The liability...

Страница 6: ...vi Reliance with FS 2 Field Operations Manual...

Страница 7: ...ps for Maximizing Submeter Accuracy 16 Tips for Maximizing Accuracy When Using LRFs 16 GPS under Trees 17 Frequently Asked Questions 17 Chapter 3 Field Operation 23 Field Checklist 23 Equipment Connec...

Страница 8: ...Management Screen BATT 72 Position Screen POSN 73 Satellite Constellation Screen SATS 75 Session Setup Screen SETP 77 Feature File Selection Screen FDF 78 Waypoint File Selection Screen WPT 79 GIS Ma...

Страница 9: ...n Screen PT 125 New Point Screen NEW 126 Edit Point Screen EDIT 127 Horizontal Navigation Screen NAVI 128 Bull s eye Navigation Screen BULL 130 Vertical Navigation Screen LINE 132 Laser Range Finders...

Страница 10: ...d Coordinates E 1 Low Receiver Power E 1 Low Receiver Memory E 2 Low Handheld Power E 2 Low Disk Space E 2 SVs Kinematic Alarm E 2 Recovering from Weak FS 2 Batteries E 2 Recovering From a FS 2 Lockup...

Страница 11: ...ure File Selection Screen 32 Figure 3 9 Waypoint File Selection Screen 32 Figure 3 10 Datalogging Setup Screen 33 Figure 3 11 Receiver Setup Screen 34 Figure 3 12 GIS Main Menu 35 Figure 3 13 Feature...

Страница 12: ...ormation Screen INFO 71 Figure 4 4 Receiver Battery Management Screen BATT 72 Figure 4 5 Position Screen POSN 73 Figure 4 6 Satellite Constellation Screen SATS 75 Figure 4 7 Session Setup Screen SETP...

Страница 13: ...bert 119 Figure 4 43 Projection Parameters PARM Trans Mercator 119 Figure 4 44 Projection Parameters PARM Oblique Mercator 120 Figure 4 45 Projection Parameters PARM Polar Parameter 120 Figure 4 46 Zo...

Страница 14: ...xiv Reliance with FS 2 Field Operations Manual...

Страница 15: ...scriptions 82 Table 4 13 Multipoint Feature Selection Screen Field Descriptions 84 Table 4 14 Attribute Selection Descriptions 85 Table 4 15 Offset Screen Field Descriptions 88 Table 4 16 LRF Communic...

Страница 16: ...al Transformation Descriptions 123 Table 4 39 Waypoint Navigation Screen Field Descriptions 124 Table 4 40 Point Selection Screen Field Descriptions 125 Table 4 41 New Point Screen Field Descriptions...

Страница 17: ...ocessing software The Reliance Submeter system processes C A code data only and provides the quickest methods of measurement providing rms accuracies as good as 35 centimeters with either static or dy...

Страница 18: ...ing twelve dedicated separate and parallel channels for Coarse Acquisition C A code phase and carrier phase measurement on the L1 1575 Mhz band The receiver receives satellite signals via an L band an...

Страница 19: ...Introduction 3 Introduction The receiver is controlled by an FS 2 handheld controller Figure 1 2 Figure 1 2 FS 2 Handheld Controller...

Страница 20: ...ance with FS 2 Field Operations Manual The receiver along with two 12 VDC camcorder batteries mounts inside the backpack Figure1 3 andtheantennapolefitsalongthesideofthebackpack Figure 1 3 Reliance Ba...

Страница 21: ...Introduction 5 Introduction The antenna Figure 1 4 screws into the antenna pole The antenna cable screws into the TNC connector on the antenna Figure 1 4 GPS Survey antenna...

Страница 22: ...or or an optional RTCM radio for real time corrections and the batteries Figure 1 5 For detailed specifications on the interface cable see Appendix A The interface to FS 2 cable Figure 1 6 connects th...

Страница 23: ...connects to two 12 VDC camcorder batteries Figure 1 8 which can provide up to 12 hours of continuous data logging when connected to the receiver The battery cable Figure 1 9 connects two 12 VDC batter...

Страница 24: ...The software has three processing functions Pre mission Field Post mission The pre mission software is used to create feature definition files FDF which can be uploaded to the FS 2 These files compri...

Страница 25: ...eld Operations Setting up the system and logging field data Ch 4 Reference Detailed explanations on all FAMlog screens Refer to as needed Appendix A Using External Devices Background information on th...

Страница 26: ...10 Reliance with FS 2 Field Operations Manual...

Страница 27: ...ween base and remote continuously tracked for at least 30 minutes Static occupation of point for prescribed time period Less than 10 km baseline PDOP less than 3 5 Table 2 2 Reliance System Applicatio...

Страница 28: ...d errors in the known base station coordinates apply directly to position uncertainty of logged features With careful field procedures errors resulting from these sources can be Table 2 3 Reliance Pro...

Страница 29: ...st be tracked continuously for a minimum of 20 minutes The PDOP index should remain below 3 5 for the duration of the session Rover antenna setup and reference coordinate errors add directly to result...

Страница 30: ...t screen These screens send parameters to the receiver for creating a new file If any one of these screens is accessed while a session is in progress press CNCL to exit the screen Do not interrupt rec...

Страница 31: ...ng interval if features have already been logged for a session changing the recording interval forces a new session to begin Allow up to four minutes for all available satellites to lock before loggin...

Страница 32: ...to minimize any error in antenna height or antenna centering Errors of this type translate directly to the position accuracy of the surveyed point Minimize errors in the base coordinates Errors in the...

Страница 33: ...ou can t get a position fix in a particular spot measure out an offset and enter the value in the Field Asset Management software The offset position automatically makes corrections in the post proces...

Страница 34: ...e or set of defined operating parameters that may vary from one project to another As an example one user of the data you process may wish to receive data in latitude longitude geographic coordinates...

Страница 35: ...he yes key to launch the HCOM File Transfer Utility Once you ve accomplished these steps select and press the Transfer information between the PC and the handheld device button in the open Transfer Da...

Страница 36: ...a spherical error of probability SEP of 15 meters You might think judging from your statistics that you ve gotten a valid average and you re inside a 15 meter sphere when in fact you re probably well...

Страница 37: ...m In addition you should conduct a careful mission plan to ensure the satellites you re working with at the field point are visible at the reference station Watch for low lying satellites visible at o...

Страница 38: ...ch refers to a particular unit of acquired data An epoch of data from a receiver is one set of measurements commonly one second s worth although many users in the GIS community work at five second int...

Страница 39: ...t interval used on base station 8 Base station recording 9 RTCM broadcasting if using differential mode After completing GIS data collection check the following 1 Receiver off 2 Exit FAMlog 3 FS 2 off...

Страница 40: ...the other end to Port A on the interface cable 4 Connect one end of the antenna cable to the ANT connector on the receiver Connect the other end of the antenna cable to the antenna The antenna may be...

Страница 41: ...r of the second cable to Port 2 of the FS 2 and 9 pin connector of the same cable to 9 pin male connector of Y cable marked handheld 7 Connect the cable from the external sensor to the Y cable pin con...

Страница 42: ...ntroller To do this type DIR and press Yes at the DOS prompt The files listed in Table 3 1 should appear on the screen If any of these files are missing reinstall the software as specified in the Offi...

Страница 43: ...d flash red After a few seconds the PWR SAT light should flash green several times then red then flash green several times This cycle should repeat continuously The red flash indicates that the receiv...

Страница 44: ...al menu choices Press the shift key to view and select an additional choice Clearing Receiver Memory Before using FAMlog for the first time reset the receiver memory as follows 1 Start FAMlog 2 Press...

Страница 45: ...own in Figure 3 4 4 Press shift F2 RSET The Receiver Reset menu appears Figure 3 5 5 Press F2 MEM to clear the receiver data storage memory 6 Wait until the Clearing Memory message disappears then pre...

Страница 46: ...have to call Customer Support about your system have this information at hand Write the information in the spaces below for reference NAV firmware ______________________________ Channel firmware ____...

Страница 47: ...Session Setup screen Figure 3 7 2 Type in a session name such as DAY001 Session names follow the same conventions as DOS file names i e no spaces maximum of 8 characters The FS 2 has a power saving fe...

Страница 48: ...own user specific feature files on a PC using the Processor software and then download the feature files from the PC to the FS 2 4 Highlight a feature file using the arrow keys then press F4 OK to ret...

Страница 49: ...tinue for more than a few minutes Setting Session Parameters In addition to setting the session name and selecting feature and waypoint files for a session you also need to set the antenna height reco...

Страница 50: ...assign attributes while visiting a point while moving along a trajectory or moving around an area Before logging any data allow the receiver to warm up for at least five minutes to make sure the recei...

Страница 51: ...Start FAMlog 2 Press F3 GIS to call the GIS Main Menu Figure 3 12 3 Press F2 FEAT The Feature Logging screen appears as shown in Figure 3 13 This screen lists the features created in the feature file...

Страница 52: ...t Feature If you plan to log several points that have identical characteristics use the repeat function to speed data collection Points lines and areas can be repeated 1 Remain on the Logging Screen a...

Страница 53: ...annotate and press F4 LOG An attribute menu appears similar to Figure 3 15 listing attributes you can assign to the feature 5 Enter a point offset if needed This can be done manually or with the LRF...

Страница 54: ...otate and press F4 LOG An attribute menu appears listing attributes you can assign to the feature 4 Enter or select the requested attribute information using the key pad and press F4 OK The Attribute...

Страница 55: ...n attribute menu appears Figure 3 16 listing the attributes you can assign to the feature in this case Name 4 Enter or select the requested attribute information using the key pad and press F4 OK The...

Страница 56: ...nested in the area If you are logging a line only a point can be nested in the line 1 When logging an area or line press the F2 NEST to call the Feature Selection screen The original feature continue...

Страница 57: ...he road 1 When logging an area or line press the F3 PAUS to pause the feature data logging 2 Press F2 FEAT to log a new feature The Feature Selection screen appears Figure 3 18 Only point and line fea...

Страница 58: ...y is pressed both the line and the area are paused to log a point After logging a point the line and area logging continue simultaneously when F3 CONT is pressed Entering Offset Data Physically inacce...

Страница 59: ...port must be opened before acquiring data from a LRF Setting the Communications Parameters for the LRF 1 From the Feature Offset screen press F3 LCOM to call the LRF Communication Parameters screen F...

Страница 60: ...screen Figure 3 21 Data from the LRF are displayed on this screen by updating the values in the fields If you wish you can change the azimuth slope distance or inclination and press UPDT update then F...

Страница 61: ...3 22 2 If the sensor type is not listed press F2 TYPE to call the Sensor Type screen Figure 3 23 which lists all currently defined sensor devices 3 If the sensor type is listed use the up down arrows...

Страница 62: ...g of the query and using toggle field following the query e g CRLF 6 Press F1 FLTR to call the Sensor Data Filter Data screen Figure 3 25 which lets you define the method of filtering data from the se...

Страница 63: ...Status screen 11 Press F1 CONN to connect to the sensor device 12 Send data from the sensor device to the FS 2 as specified in the sensor device manual The transmitted data fills the fields in the Fe...

Страница 64: ...tely 100 meter accuracy with a single receiver The real time differential RTCM option must be installed to use the waypoint navigation capability If you are using waypoints FAMlog displays navigation...

Страница 65: ...screen lists the target point coordinates To navigate to a target point 1 Press F1 NAVI The Horizontal Line Navigation screen appears as shown in Figure 3 28 This screen directs you to the desired wa...

Страница 66: ...3 2 Horizontal Line Navigation Screen Descriptions Field Description POINT 0 Selected waypoint number COG Current course over ground where tr true north mg magnetic north CTT Required course to targe...

Страница 67: ...on information 1 Press F3 LINE from the BULL S EYE screen to call the Vertical Line Navigation screen The Vertical Line Navigation screen is oriented so that the current heading is at the top center o...

Страница 68: ...o have receiver automatically switch from autonomous mode non differentially corrected to differentially corrected mode when the age of corrections from the base is within tolerance If the corrections...

Страница 69: ...e toggle field using Space key Select baud rate of base station transmission Maximum age age tolerance Enter the maximum age of corrections to be used in position computation 7 Press F4 OK to accept c...

Страница 70: ...e total area covered by your survey will be indicated when you return to your starting point For area calculation you will need a radiobeacon receiver such as the Ashtech BR2 to supply differential co...

Страница 71: ...Field Operation 55 Field Operation 6 On the FS 2 call the FAMLog screen Figure 3 33 7 Press F3 GIS calling the GIS Main Menu Figure 3 34 Figure 3 33 FAMLog Screen Figure 3 34 GIS Main Menu...

Страница 72: ...Setup screen Figure 3 35 9 Use the down arrow to select AREA then use the Space key to select the area units you want to use The area units are ACRE acre SQMI square mile M2 square meter HA hectare K...

Страница 73: ...GIS main menu In the GIS main menu press Shift F2 RCVR calling the Receiver Setup screen Figure 3 36 11 In the Receiver Setup screen press F2 MODE calling the Differential Mode screen Figure 3 37 Fig...

Страница 74: ...38 13 Verify or set all parameters for the Rover Station setup 14 Press F4 OK then F4 RETN to return to the Receiver Setup screen In the Receiver Setup screen press F4 OK to set the receivers The mes...

Страница 75: ...lling the Feature Logging screen Figure 3 41 which now shows the area calculation displayed in the units you selected in step 9 above 17 When you transfer the area data from the receiver to the PC spe...

Страница 76: ...levation above ellipsoid meters 19 Using Map View in the office software compare with data when averaging is OFF should be difference between ON and OFF in Map View Local Coordinate Transformation Gri...

Страница 77: ...igure 3 43 2 Press Shift F1 DSST calling the Display Setup screen Figure 3 44 3 Verify that FORMAT is set to GRID if FORMAT is GEOGRAPHIC use the Sp space key to toggle the setting from GEOGRAPHIC to...

Страница 78: ...eters for your local grid dN dE dSCALE and ROTATION 5 If APPLY is OFF use the Sp space key to toggle it ON 6 Enter your local parameters for dN and dE in meters dSCALE in decimal and ROTATION in radia...

Страница 79: ...nd LRF data files The FAMlog program the feature files and the waypoint files are stored in the FS 2 Q How long does receiver memory last A For an average of six satellites the standard 4 5 Mb storage...

Страница 80: ...he FS 2 and then press F3 NAVT to call the course to target and distance to target navigation information Q How do I know if I m computing a good position A The Position screen on the FS 2 provides se...

Страница 81: ...ontents of a toggle box are changed by using the Sp space key Small white boxes not filled indicate editable fields where you can enter information Large boxes on the right of the screen contain descr...

Страница 82: ...e MAIN FAMlog main screen 69 INFO Displays information about hardware and software versions 71 BATT Sets the parameters for the receiver battery 72 POSN Displays the current position and quality infor...

Страница 83: ...et the receiver 109 SCRP Select script file containing receiver commands to send 110 DSST Customize aspects of the displays and data entry 111 TIME Name the time zone and enter the offset from UTC for...

Страница 84: ...te to the selected waypoint 128 BULL View the status of the navigation mission in the form of a bull s eye 130 LINE View the status of the navigation mission with a display 132 Table 4 1 Screen Descri...

Страница 85: ...cle power on the receiver using shift F1 POWR SESSION Identification of the GIS data collection session Blank until a session name is entered on the SETP screen or shows the previous session name HAND...

Страница 86: ...a new file is created in the receiver POSN Opens the Position POSN Screen GIS Opens the GIS Screen SETP Opens the Session Setup Screen INFO Opens the Information Screen BATT Opens the Receiver Battery...

Страница 87: ...nformation Screen INFO Table 4 3 Information Screen Descriptions Field Description NAV FIRMWARE Firmware version of the GPS receiver CHANNEL FIRMWARE Channel firmware version number of the GPS receive...

Страница 88: ...y in mAmps The value for camcorder batteries supplied with the system are 2300 mAh each If both batteries are connected enter 4600 mAh POWER REMAINING Set the receiver battery power remaining After co...

Страница 89: ...me Zone screen WGS 84 System and zone or datum that current position is referenced to LAT or NOR LON or EST ELV Current position ELLIPSOIDAL Elevation mode of current position Other possible value ORT...

Страница 90: ...Current horizontal RMS value Value reduces substantially when the collected data are post processed Same units as the elevation display VRMS Current vertical RMS value Value reduces substantially when...

Страница 91: ...alth code broadcast by the satellite indicates unhealthy LOCKED Number of satellites locked AVAILABLE Number of available satellites Based on the satellite almanac which takes about 15 minutes to load...

Страница 92: ...th FS 2 Field Operations Manual S N Signal to noise ratio for each locked satellite signal RETN Returns to the POSITION screen Table 4 6 Satellite Constellation Screen Field Descriptions Continued Fie...

Страница 93: ...SETP Table 4 7 Session Setup Screen Field Descriptions Field Description SESSION NAME Current session name Each new session name creates a new receiver file FEATURE FILE Selected feature library file...

Страница 94: ...RE FILE SELECTION screen fields Figure 4 8 Feature File Selection Screen FDF Table 4 8 Feature File Screen Field Description Field Description SELECTED Currently selected feature file Each time a new...

Страница 95: ...WAYPOINT FILE SELECTION screen fields Figure 4 9 Waypoint File Selection Screen WPT Table 4 9 Waypoint File Selection Screen Field Description SELECTED Currently selected waypoint file Waypoint files...

Страница 96: ...10 GIS Main Menu GIS Table 4 10 GIS Main Menu Field Descriptions Field Description SESSION NAME Current session name FEATURE FILE Current feature file name WAYPOINT FILE Current waypoint file name RIG...

Страница 97: ...INTERVAL Recording interval used for point line and area feature data collection Changing the recording interval creates a new file in the receiver Default 2 0 seconds TIME ON POINT Point occupation...

Страница 98: ...Field Descriptions Field Description SELECT THE FEATURE List of features defined in the feature file Use the cursor keys to highlight a feature or press a letter to quickly jump to the first feature...

Страница 99: ...t highlighted feature start logging data to receiver and open ATTRIBUTES screen SENS Opens the Sensor Status Screen Available only if receiver is configured for external sensor devices Table 4 12 Feat...

Страница 100: ...n Only point features are available in the Multipoint mode Table 4 12 describes the fields different from the FEATURE SELECTION screen Figure 4 13 MultiPoint Feature Selection Screen Table 4 13 Multip...

Страница 101: ...e type ATTRIBUTE 1 of 4 Attribute TIME Lasped logging time for current feature MEMORY Percent of available receiver memory SVs Number of satellites used in the position solution HRMS Current horizonta...

Страница 102: ...Reliance with FS 2 Field Operations Manual CNCL Returns to FEATURE SELECTION screen disregarding any changes Use this function with caution Table 4 14 Attribute Selection Descriptions Field Descripti...

Страница 103: ...t from laser range finders Offset data must have an azimuth distance and inclination If an offset is approximately level set the inclination to 0 00 Lines and areas are offset perpendicularly to the l...

Страница 104: ...e INCLINATION Angle between a horizontal and the offset point or line If the offset is approximately level use 0 00 DIRECTION For line area offsets only Offset direction relative to path of travel Tog...

Страница 105: ...rameters Screen Table 4 16 LRF Communication Parameters Screen Field Descriptions Field Description BAUD RATE Communication speed between the LRF and the FS 2 Possible values are 300 600 1200 2400 480...

Страница 106: ...the SENSOR STATUS screen Figure 4 18 and Figure 4 19 to connect to an external sensor device This module is only accessible if receiver has the event option installed Figure 4 18 Sensor Status Screen...

Страница 107: ...nected to an external sensor device FREQUENCY Rate at which FAMlog receives data from the external sensor device Values include ALL ON DEMAND or frequency in seconds II DBT Data received from external...

Страница 108: ...R TYPE screen fields Figure 4 20 Sensor Type Screen TYPE Table 4 18 Sensor Type Screen Field Descriptions Field Description SELECTED Current external sensor device name TYPE0 TYPE9 List of external se...

Страница 109: ...sor device and FAMlog Values include 300 600 1200 2400 4800 9600 19200 and 38400 DATA BITS Number of data bits 7 or 8 PARITY Choose NONE ODD or EVEN STOP BITS Number of stop bits 1 or 2 QUERY Query co...

Страница 110: ...y fills the receiver memory I N LINE AREA Select to store filtered data from external sensor device for every logged line or area feature ALL when requested ON DEMAND or at a given frequency in second...

Страница 111: ...FIELD zero the files is extracted from the string assuming comas as separators Resulting string 7 542 If FIELD zero and the suffix is empty up to MAX BYTES leading characters are stored If FIELD zero...

Страница 112: ...us recording even in poor satellite geometry ANTENNA HEIGHT Enter the antenna height Valid values are 0 6 5 meters Default is 2 0m SATELLITE ELEVATION Enter elevation mask cutoff value Data from satel...

Страница 113: ...e 97 Reference FILE Opens the File Management screen RSET Opens the Receiver Reset screen SCRP Opens the Script Selection screen Table 4 21 Receiver Setup Screen Field Descriptions Continued Field Des...

Страница 114: ...tion fix By default all satellites are selected The SATELLITE SELECTION screen lists each satellite by PRN number in the constellation with a Y or N next to the PRN number Use the cursor keys to highl...

Страница 115: ...DE Use the DIFFERENTIAL MODE screen Figure 4 25 to set the differential mode of the receiver Figure 4 26 and Figure 4 27 are screens for different settings Figure 4 25 Differential Mode Screen MODE Au...

Страница 116: ...tation If the receiver operates as a remote station and this value is not zero the receiver accepts differential corrections only from base station with the ID RADIO INPUT Remote station only Port for...

Страница 117: ...y if the RTCM option is installed in the receiver BASE opens the RTCM BASE STATION screen Valid only if the RTCM option is installed in the receiver RETN Returns to the RECEIVER SETUP screen Table 4 2...

Страница 118: ...values are 0 1023 Default is 0 ID is sent out with differential corrections from base station If receiver operates as a remote station and this value is zero the receiver accepts differential correcti...

Страница 119: ...e CNCL Returns to DIFFERENTIAL MODE screen disregarding any changes OK Returns to DIFFERENTIAL MODE screen accepting the current settings Table 4 23 RTCM Rover Station Screen Field Descriptions Contin...

Страница 120: ...his value is zero the receiver accepts differential corrections from any base station If receiver operates as a remote station and this value is not zero the receiver accepts differential corrections...

Страница 121: ...Reference 105 Reference OK Returns to DIFFERENTIAL MODE screen accepting the current settings Table 4 24 RTCM Base Station Setup Screen Field Descriptions Field Description...

Страница 122: ...vation of the base station antenna If the antenna is mounted above a monument enter the antenna radius and tripod slant ANT RADIUS Enter the radius of the base station antenna For the GPS Survey anten...

Страница 123: ...Reference 107 Reference OK Returns to RTCM BASE STATION screen accepting the current settings Table 4 25 Base Station Coordinates Screen Field Descriptions Continued Field Description...

Страница 124: ...le Management Screen FILE Table 4 26 Receiver File Management Screen Field Description FILES Number of files stored in the receiver memory FREE MEM Percent receiver memory remaining MEMORY LEFT Remain...

Страница 125: ...Figure 4 32 Receiver Reset Screen RSET Table 4 27 Receiver Reset Screen Field Descriptions Field Description PARM Resets the receiver and restores the default receiver parameters This function is rare...

Страница 126: ...to control your receiver Figure 4 33 Script Screen SCRP Table 4 28 Script Screen SCRP Field Description SCRIPT SELECTION Highlight the file from the list on the left hand side of the display by using...

Страница 127: ...DISPLAY SETUP screen Figure 4 34 and Figure 4 35 to customize aspects of the displays and data entry This screen can vary depending selected parameters Figure 4 34 Display Setup Screen DSST Geographic...

Страница 128: ...er mile nautical mile A US foot 0 30480061 meters whereas an international foot 0 30408 meters VELOCITY Select the units for displayed velocity information KPH MPH and KNOTS DATUM GEOGRAPHIC format el...

Страница 129: ...ld Description NAME Enter three character abbreviation for the receiver s time zone The name entered is for your reference only and not used to calculate local time OFFSET FROM UTC Enter offset of the...

Страница 130: ...first letter of the system name to highlight a grid system Table 4 31 describes the TIME ZONE screens fields Figure 4 37 System Selection Screen SYST Table 4 31 System Selection Screen Field Descripti...

Страница 131: ...lds Figure 4 38 Datum Selection Screen DATM Table 4 32 Datum Selection Screen Field Descriptions Field Description SELECTED Currently selected datum ELLIPSOID Ellipsoid and translation parameters betw...

Страница 132: ...TION screen fields Figure 4 39 User Datum Definition Screen USER Table 4 33 User Datum Definition Screen Field Descriptions Field Description SELECTED Currently selected ellipsoid TRANSLATION FROM WGS...

Страница 133: ...IONS screen fields Figure 4 40 Translations Screen TRNS Table 4 34 Translations Screen Field Descriptions Field Description ELLIPSOID Currently selected ellipsoid X Y Z Enter offsets of the ellipsoid...

Страница 134: ...en Field Descriptions Field Description PROJECTION Toggle field lets you select the projection LAMBERT TRANSVERSE MERCATOR OBLIQUE MERCATOR or POLAR STEREOGRAPHIC LAT LNG Enter latitude and longitude...

Страница 135: ...RM Use the PROJECTION PARAMETER screen Figure 4 42 through Figure 4 45 to enter projection parameters This screen varies based on the selected projection Figure 4 42 Projection Parameters PARM Lambert...

Страница 136: ...120 Reliance with FS 2 Field Operations Manual Figure 4 44 Projection Parameters PARM Oblique Mercator Figure 4 45 Projection Parameters PARM Polar Parameter...

Страница 137: ...S Enter projection specific parameters Standard parallels for Lambert projection Central meridial and inverse scale for transverse Mercator projection Tangent of axis azimuth and inverse Schaeffer for...

Страница 138: ...keys to select a zone Table 4 37 describes the ZONE screen fields Figure 4 46 Zone Screen ZONE Table 4 37 Zone Screen Field Descriptions Field Description SYSTEM Current grid system ZONE Name of the...

Страница 139: ...e 4 38 Grid to Local Transformation Descriptions Field Description APPLY Toggle this field ON or OFF using the Sp space key ON applies the local transformation parameters described below dN Enter delt...

Страница 140: ...ION screen fields Figure 4 48 Waypoint Navigation Screen WYPT Table 4 39 Waypoint Navigation Screen Field Descriptions Field Description TARGET POIN Description of the next point 37 22 22 6067 Latitud...

Страница 141: ...nt Table 4 40 describes the POINT SELECTION screen fields Figure 4 49 Point Selection Screen Table 4 40 Point Selection Screen Field Descriptions Field Description SELECTED Currently selected point an...

Страница 142: ...NEW Table 4 41 New Point Screen Field Descriptions Field Description NAME Enter a name for the point LAT or NOR Enter the latitude or nothing of the point LNG or EST Enter longitude or easting of the...

Страница 143: ...T Table 4 42 Edit Point Screen Field Descriptions Field Description NAME Name of the point LAT or NOR Enter latitude or nothing of the point LNG or EST Enter longitude or easting of the point HERE Set...

Страница 144: ...er VMG Velocity in the direction of the line to the waypoint Velocity Make Good COG Course over ground where tr true north mg magnetic north CTT Course to target the target is the waypoint where tr tr...

Страница 145: ...changes depending on how far off line you are 1 m Scale of each The scale changes automatically NEXT Switch to the next sequential point of the waypoint file FEAT Opens the FEATURE LOGGING screen BULL...

Страница 146: ...Screen BULL Table 4 44 Bull s eye Navigation Screen Field Description Field Description POLE Waypoint identification number R Radius of the external circle CTT Course to Target The target is the waypo...

Страница 147: ...PREV Switches the target point to the previous sequential point of the waypoint file POSN Opens the Horizontal Navigation screen MNSC or AUSC Scaling method manual or automatic In manual scaling use...

Страница 148: ...tion screen fields Figure 4 54 Vertical Navigation Screen LINE Table 4 45 Vertical Navigation Screen Field Descriptions Field Description POLE Waypoint identification number H 300m Displays length of...

Страница 149: ...s eye Navigation Status Screen RETN Returns to the Horizontal Navigation screen PREV Switch to the previous sequential point of the waypoint file POSN Opens the POSITION screen MNSC or AUSC Scaling m...

Страница 150: ...134 Reliance with FS 2 Field Operations Manual...

Страница 151: ...me level of accuracy as if he surveyed each point In some cases the satellite positioning of features next to tall buildings or under heavy canopy is not possible without the use of LRF or other exter...

Страница 152: ...er away from the LRF With an antenna mounted on the field operator s back and the LRF at the operator s eye the horizontal offset could be up to 30 to 50 centimeters To minimize these errors make the...

Страница 153: ...ot account for offsets when using an external sensor device The field operative must survey the actual feature If you plan to use an external sensor device while surveying a line or area feature while...

Страница 154: ...complished by several methods keep the interval rate constant and decrease speed when travelling through a curve increase the interval rate and do not change speed when travelling through a curve incr...

Страница 155: ...rd data to a receiver once the receiver starts computing a position To set a rover to act as a base requires resetting the receiver memory setting the recording interval antenna height and session nam...

Страница 156: ...screen Figure B 2 8 Enter the PDOP mask measured antenna height and satellite elevation mask 9 Press F4 OK to accept the changes and return to the GIS main menu 10 Press F3 LGST to open the Dataloggin...

Страница 157: ...Session Setup screen Figure B 4 15 Enter BASE in the SESSION NAME field You do not need to select a feature or waypoint file since you are not logging features 16 Press F4 OK to accept the changes an...

Страница 158: ...B 4 Reliance with FS 2 Field Operations Manual...

Страница 159: ...rry a spare set of AA alkaline batteries Avoid subjecting your FS 2 to temperature extremes including bright sunlight in a vehicle prolonged immersion in water or physical mistreatment The FS 2 Figure...

Страница 160: ...C 2 Reliance with FS 2 Field Operations Manual Figure C 1 FS 2 Handheld Controller...

Страница 161: ...2 Handheld Controller Components Item Description Port 1 Connector Main Serial Port Port 2 Connector Second Serial Port Escape Key Usually used to cancel a function LCD Screen Displays prompts and in...

Страница 162: ...t the symbols shown above the keys hold down either shift key and then press the appropriate key Moving the Cursor To move the cursor a character or line at a time use the arrow keys To move the curso...

Страница 163: ...d the FS 2 1 Exit FAMlog on the FS 2 2 Disconnect the FS 2 from the GPS receiver 3 Connect the FS 2 to the PC COM port 4 At the FS 2 DOS prompt C type HCOM The FS 2 is now ready to receive file transf...

Страница 164: ...city and power management are correctly set Refer to your FS 2 Quick Reference Guide CAUTION If you have changed from rechargeable to non rechargeable batteries warn anyone who uses the unit Non recha...

Страница 165: ...in the Status Screen press the PAW and H keys simultaneously Figure C 2 2 Use the left or right arrow keys to highlight POWER 3 Then press the YES key You will see the POWER PARAMETERS Screen 1 Figure...

Страница 166: ...R REMAINING field 2 Use the up down arrows to set the POWER REMAINING value to 100 If the battery condition is NOT known 1 Set the POWER REMAINING field to a lower value e g 50 2 The numbers tell the...

Страница 167: ...ould be the mAh milliampere hour number from the sleeve of the batteries typically 1400 mAh for rechargeable batteries NiCad 1800 mAh for non rechargeable alkaline Charging Authorization The default s...

Страница 168: ...supply 5 Let the batteries charge preferably for 8 hours 6 Turn off or disconnect from the AC supply CAUTION Under certain conditions particularly low battery charge the FS 2 comes on for a couple of...

Страница 169: ...ction keys are still visible To release the shift lock press shift lock key again Notice the other shift key works normally and does not release the shift lock Frequently Asked Questions Q How long wi...

Страница 170: ...C 12 Reliance with FS 2 Field Operations Manual...

Страница 171: ...The four connectors on the right side are from top to bottom as follows the power connector which connects to a cable with two Panasonic camcorder batteries a male DB 9 Port A PPS out connector which...

Страница 172: ...D 2 Reliance with FS 2 Field Operations Manual Figure D 2 outlines the pinouts for each connector Figure D 2 Interface Cable Pinout Diagram...

Страница 173: ...charged batteries and turn the receiver on by pressing the POWR key on the FS 2 FAMlog screen The Power field on the upper left of the screen should say ON If the receiver is on but the FS 2 can not c...

Страница 174: ...e can be locked and used to compute a position but is not available for centimeter processing if the satellite is partially blocked This may occur if the signal to noise ratio is too low To ensure tha...

Страница 175: ...but only at the DOS prompt If the FAMlog program is running a program breakout or hardware reset will have to be performed The program breakout should be attempted first since the hardware reset may...

Страница 176: ...E 4 Reliance with FS 2 Field Operations Manual...

Страница 177: ...e California USA 800 Number 1 800 229 2400 Local Voice Line 408 524 1680 fax 408 524 1500 Email support ashtech com Ashtech Europe Ltd Oxfordshire UK TEL 44 1 993 883 533 fax 44 1 993 883 977 Solution...

Страница 178: ...have the following information available Table F 1 GPS Product Information Information Category Your actual numbers Receiver model Receiver serial Software version Software key serial Firmware version...

Страница 179: ...f the GPS satellites get NANUS Notices Advisory to Navstar Users and look at solar and geomagnetic data from SESC Space Environment Services Center in Boulder Colorado On occasion the BBS has been use...

Страница 180: ...Capable of multiple file transfer batch YMODEM G Fast protocol for use only with error free data links Not recom mended SEAlink Passes filename and size eliminating rounding problems Capa ble of file...

Страница 181: ...al Time Z Applications Reliance for GPS GIS For detailed information call or email Ashtech or contact your local Ashtech dealer The Ashtech WWW pages contains information on course dates costs and con...

Страница 182: ...F 6 Reliance with FS 2 Field Operations Manual...

Страница 183: ...Bull s eye Navigation screen 130 C C A 19 cables interface D 1 clearing receiver memory 28 Communication Parameters 89 connection lost E 1 COOR 106 Customer Support F 1 D data collection session 23 d...

Страница 184: ...2 Laser Range Finders setup 24 LGST 81 line 36 38 40 41 42 64 65 68 132 line feature logging 38 local transformation 123 lockup FS 2 E 3 LOCL 123 LOG 85 logging 35 38 area 38 feature nesting 40 featur...

Страница 185: ...tem description 12 program breakout E 3 project 18 Projection Parameters screen 119 R Receiver Battery Management screen 72 Receiver File Management screen 108 receiver memory 17 Receiver Reset screen...

Страница 186: ...2 TIME 113 TRNS 117 TYPE 92 USER 116 ZONE 122 Sensor Data Filter screen 94 session 18 session setup 31 77 setup external sensor devices 25 Laser Range Finders 24 session 31 system 23 software 8 spheri...

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