HP RC3000 88

RC3000 Antenna Controller

Chapter 3

Detailed Operation

3.2.2.3.3 Azimuth Scanning Autopeak

The figure shows the movements made to perform an azimuth scanning (SCAN) operation. This SCAN operation enables the RC3000 to try to compensate for any azimuth inaccuracy caused by truck heading calculation errors.

1)as part of the basic LOCATE movement, the mount will be moved to the target elevation position and the polarization axis will be moved to the correct orientation.

2)SCAN moves to the closest azimuth position “scan range” away from the nominal target azimuth. SCAN will begin trying to detect a satellite from this position.

3)SCAN steps and samples signal strength following each step. The signal strength measurements are used to calculate the average background signal noise and to determine if a signal strength peak has been detected indicating the presence of a satellite at a particular position. The size of steps taken is calculated as a function of the antenna diameter and the signal band the receiving equipment is using to ensure that the satellite is not “stepped over”. Note that in order to compensate for any vehicle tilt, occasionally elevation movements are also made to stay on the target elevation. Note also that the stepping movements may be truncated due to the physical limit of azimuth movement.

4)After completing the total number of step movements, SCAN moves to the position that gave the best indication of a satellite. If no satellite was clearly indicated, SCAN moves back to the original target.

During the SCAN operation, line 4 of the display shows the total number of steps to be made and the current step being performed.

AZIM:	0.0	(	-5.9)	SS1:523 LOCATE
ELEV:	-61.7	(	44.8)	SAT:GALAXY 7
POL:	0.0	( -45.0)
SCAN(	1/17)	AZIMUTH FOR PEAK <STOP>HALT

The scan range is a user-defined angular value (see autopeak configuration 3.3.1.2.6) that determines the range to be searched by the SCAN routine. Since this angular range is user-defineable, there are

80

Contents

Contents subject to change 1 December RESEARCH CONCEPTS INC 5420 Martindale Road Shawnee, Kansas 66218-9680USA Page REVISION HISTORY WARRANTY INFORMATION REPAIR RETURN INFORMATION TABLE OF CONTENTS 1.2 RC3000 FEATURES 1.3 THEORY OF OPERATION 1.3.1 Controller Description 1.3.2 System Interface Requirements 3.0 DETAILED OPERATION 3.1.3 Data Entry 3.2.2 Menu Mode 3.4 ALARM DISPLAYS 5.0 DRAWINGS & SCHEMATICS APPENDIX A - EXPERT ACCESS / RESET DEFAULTS CODE APPENDIX B - MOUNT SPECIFIC DATA APPENDIX C - DC MOTOR CONTROLLER Page 1.0 INTRODUCTION 1.1 Manual Organization MANUAL CONVENTIONS 1.2 RC3000 Features Software Configuration Mount Manufacturer/Model # As of December 2005, the RC3000 supported over 80 different mount models Navigation Sensor Options Tracking Options 1.3 Theory of Operation 1.3.1 Controller Description 1.3.2 System Interface Requirements 1.3.3 Operational Overview Programming Group Functions 1.3.4 Antenna Pointing Solution Page 1.3.5 Timekeeping 1.3.6 Drive System Jam and Runaway Sensing Anti-Reversal Automatic Movements 1.3.7 Polarization Control 1.3.8 Magnetic Variation 1.3.9 System Performance 1.4 Specifications 2.0 INSTALLATION 2.1 Equipment Mounting 2.1.1 RC3000 Antenna Controller 2.1.2 GPS Receiver 2.1.3 Fluxgate Compass Page 2.1.4 Electronic Clinometer Page 2.2 Electrical Connections 2.2.1 Power Entry 2.2.2 Motor Drive 2.2.3 Drive Sense 2.2.4 Limit Switches 2.2.5 Signal Strength 2.2.6 Navigation Sensors 2.2.7 Accessories 2.2.8 RF Autopeak 2.2.9 Hand Held Remote Page 2.2.10 Pulse Sensors Page Page 2.2.11 Remote Control 2.2.12 Waveguide Switch 2.2.13 Resolver Inputs 2.3 Initial Configuration 2.3.1 Software Initialization Page 2.3.2 Elevation Calibration Page Page STEP 5. Up Limit Confirmation STEP 6. Software Elevation Limits 2.3.3 Azimuth Calibration Page Page 2.3.4 Polarization Calibration Page Page 2.3.5 Fast/Slow Motor Speed 2.3.6 Pulse Sensor Checkout 2.3.7 Drive System Checkout 2.3.8 Navigation Sensor Communication 2.4 Final Calibration 2.4.1 Compass Calibration 2.4.2 Azimuth and Elevation Alignment Elevation Alignment Azimuth Alignment 2.4.3 Signal Strength Adjustment 2.4.3.1 L-BandPower Detector 2.4.3.2 Signal Strength Channel 2.4.3.3 Signal Strength Channel Calibration 2.4.3.4 Amplifier Gain vs. Frequency Characterization 2.4.4 Pulse Scale Factors SCALE FACTOR FOR RESOLVER SYSTEMS 2.4.5 Operational Presets 2.4.6 Miscellaneous Adjustments 2.4.7 Mechanizing Automatic Locates 3.0DETAILED OPERATION 3.1Operation Overview 3.1.1 Modes 3.1.2 Keypad Usage Page 3.1.3 Data Entry 3.1.4 Display Layout 3.2 Operating Group 3.2.1 Manual Mode SS1/SS2/RF: SPD: SAT: TIME DISPLAY 3.2.1.1 Heading Fix 3.2.1.2 Waveguide Switch 3.2.2 Menu Mode 3.2.2.1 Deploy 3.2.2.2 Stow 3.2.2.3 Locate Page Page Page Page Page Page Page 3.2.2.4 Store 3.2.2.5 Recall 3.2.2.6 Delete 3.2.2.7 Position GPS Lat/Lon Page 3.2.2.8 Settings 3.2.2.9 Track 3.2.2.10 Remote 3.2.2.11 VSAT Mode VSAT MODE OPERATION LOCATE STOW MANUAL EXITING VSAT MODE 3.3 Programming Group 3.3.1 Configuration Mode Page 3.3.1.1 NORMAL ACCESS ITEMS LOC#: <SCR> THRU LIST, <ENTER> TO MODIFY DATA NAME: ENTER <ALPHANUMERIC> LOC NAME LAT: Page 3.3.1.2 INSTALLATION ACCESS ITEMS Page RES: REV:0 RES: ELEV RESOLVER OFFSET<+/-300.00DEGREES REV: ELEV RESOLVER<0-NORMAL 1-REVERSED REF_V: SET REFERENCE VOLTAGE <1.00 - 4.00 CCW: SET CCW LIMIT <0 TO 360 DEGREES CW: SET CW LIMIT <0 TO 360 DEGREES RES: AZIM RESOLVER OFFSET<+/-300.00DEGREES REF_V: SET REFERENCE VOLTAGE <2.00 - 3.00 POL OFFSET <-90.0/+90.0DEGREES TYPE: <1>CIRCULAR <2>SINGLE <3>DUAL RF LOCK: <0-NONE 1-1HI 2-1LO 3-2HI 4-2LO SS1 LOCK: LOCK TYPE <0>NONE <1>HI <2>LO SS2 LOCK: Page SCAN_TH: SCAN THRESHOLD <0-999 3.3.1.3 Super-UserAccess Items FAST/SLOW: SET THRESHOLD <0.0-10.0DEGREES MAX ERROR: SET MAXIMUM ERROR <0.01 - 1.00 DEGREES COAST: SCALE: AZIM SCALE FACTOR <1-32767PULSES/RADIAN AZIM CW PULSE LIMIT <0 - 65535 AZIM CCW PULSE LIMIT <0 - 32768 SET THRESHOLD <0 - 999 PULSES JAM SLOP: SET JAM SLOP <0 - 1023 RUN SLOP: SET RUNAWAY SLOP <0-1023 FAST DEADBAND: Page RETRY: ELEV SCALE FACTOR<1-32767PULSES/RADIAN ELEV UP PULSE LIMIT <100 - 65535 ELEV DOWN PULSE LIMIT <100 - 65535 Page AZ_STW: AZIMUTH STOW <-180.0/180.0 EL_STW: ELEVATION STOW <-90.0/90.0 PL_STW: AZ #: MOVE # AZIM <-180.0/180.0 EL #: MOVE # ELEV <-90.0/90.0 PL #: 3.3.2 Maintenance Items 3.3.2.1 Analog to Digital Voltage 3.3.2.2 Drive Error Resets 3.3.2.3 Time Maintenance 1-DATE ENTER DATE DD.MM.YY 2-TIME ENTER TIME HH.MM.SS 3-SYNCH 3.3.2.4 Signal Strength Offset Calculator 3.3.2.5 Limits Maintenance 3.3.2.6 GPS Serial Port Diagnostics 3.3.2.7 Fluxgate Serial Port Diagnostics 3.3.2.8 MOVETO 3.3.2.9 Fluxgate Calibration Procedure 3.3.2.10 Shake 3.3.2.11 Configuration Item Record 3.4 Alarm Displays AZ/EL OPTIONS TIME/DATE TRACK CONFIG 4.0 TROUBLESHOOTING 4.1 Limit Switches 4.2 Motor Drive 4.3 Automatic Movements 4.4 GPS 4.5 Fluxgate Compass 5.0 DRAWINGS & SCHEMATICS