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INVICTA 115

INSTALLATION AND SERVICE

MANUAL

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Summary of Contents for INVICTA 115

Page 1: ...INVICTA115 INSTALLATIONANDSERVICE MANUAL ...

Page 2: ...RAVEN INDUSTRIES 205 East 6th Street Sioux Falls SD 57104 Voice 1 800 243 5435 FAX 1 605 331 0426 www ravenprecision com ...

Page 3: ...dar Out 4 Advanced Message Forwarding 4 Installation 4 Initial Power up 4 Power 5 GPSAntenna 6 Operation 6 Initial Startup 6 Normal Operation 6 Troubleshooting 6 Checking your installation 7 Receiver Specifications 8 Configuration 8 Global Positioning System GPS 9 Differential GPS DGPS WAAS 10 Raven Proprietary NMEA Messages 11 Sample GGA Message Structure 12 016 0159 912 12 02 1 ...

Page 4: ...currences will cause the position to suddenly jump to a new point Applications such as crop guidance will see accuracies of about 0 75 feet RMS swath to swath when in WAAS DGPS In this application the DGPS correction source is critical so the position won t jump around while spraying a field For the functional description the Invicta 115 can be broken into several parts Each is described in the fo...

Page 5: ... It should be noted that updates cover such things as bug fixes and performance enhancements Sometimes upgrades can also be programmed into the receiver using the utility software Upgrades also include things such as the 10 solutions per second option which does have additional cost The good thing is that the user can install these upgrades and updates It will necessary to get a code from a Raven ...

Page 6: ...with millisecond resolution It can be used to elimi nate latency issues Latency is usually only an issue in systems where GPS positions are used to locate data coming from another sensor If not accounted for the latency of output can show up as positional errors The advanced message forwarding takes care of latency problems in systems where the other sen sor can output NMEA style messages This fea...

Page 7: ...ng on other equipment on the machine A device could interfere with the GPS satellites or WAAS signals Wait about 30 seconds after each device is turned on to see if the receiver stops tracking satellites Finally start up the machine and again watch for any problems If after turning something on a problem is found try moving the antenna further away from that device Check that the device is functio...

Page 8: ...he internal GPS and WAAS receiver must perform a COLD START the first time the system is powered up The GPS receiver will search the sky for satellites and download data necessary for operation The WAAS receiver will wait until the required almanac data is received The cold start will take up to 15 minutes but is only required during the initial power up Connect the serial cable provided between t...

Page 9: ...eception Move the receiver further away from the engine Receiver Normally only 5GPS satellites are required for good accuracy If a lightbar is connected ensure the 3 center LED S are lit green Transmitting If the receiver is operating in WAAS Mode the receiver may be out of range of a satellite or the Satellite may be off the air WAAS status information is available on the Internet at WWW FAA Seri...

Page 10: ...er Consumption 4 Watts Typical Operating Temp 40 C to 85 C Voltage 9 16 VDC Operating Humid 100 Condensing CONFIGURATION SERIAL INTERFACE The Invicta 115 has two bi directional RS232 serial interfaces available on a single external DB9 female connector Each port is assigned a single letter in uppercase A or B and each one provides the necessary interfacing between the Invicta 115 and your navigati...

Page 11: ...ls transmitted from each satellite to reach earth It s that old Distance Rate x Time equation Radio waves travel at the speed of light Rate Time is determined using an ingenious code matching technique within the GPS receiver With time determined and the fact that the satellite s position is reported in each coded navigation message by using a little trigonometry the receiver can determine its loc...

Page 12: ...atellite is formatted into a correction message and transmitted to GPS users The correction message format follows the standard established by the Radio Technical Commission for Maritime Services Special Committee 104 RTCM SC104 These differential corrections are then applied to the GPS calculations thus removing most of the satellite signal error and improving accuracy The level of accuracy obtai...

Page 13: ...ata DTM Datum Reference GGA Global Positioning System Fix Data GLL Geographic Position GRS GPS Range Residuals GSA GPS Dillution of Precision DOP and Active Satellites GST GPS Pseudorange Noise Statistics GSV GPS Satellites in View MSK MSK Receiver Interface MSS MSK Signal Status RMC Recommended Minimum specific GPS Transit Data VTG Course Over Ground and Ground Speed ZDA Time and Date PROPRIETARY...

Page 14: ...SAMPLE GGA MESSAGE STRUCTURE The following example of the GGA message shows the format typical of NMEA messages 12 ...

Page 15: ...to his distributor or to Raven for final approval WHAT WILL RAVEN INDUSTRIES DO When our inspection proves the warranty claim we will at our option repair or replace the defective part and pay for return freight WHAT DOES THIS WARRANTY NOT COVER Raven Industries will not assume any expense or liability for repairs made outside our plant without written consent We are not responsible for damage to ...

Page 16: ...Manual Rev A Invicta 115 12 02 016 0159 912 ...

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