Research Concepts RC2000A - Manual (Page 5)

2.0 SIGNAL STRENGTH 98
2.1 Controller AGC Potentiometor Adjustment 99
2.1.1 Single Frequency Band Potentiometer Adjustment 99
2.1.2 Dual Frequency Band Potentiometer Adjustment 101
2.2 Checking the AGC Pot Adjustments 103
2.2.1 AGC Above Threshold for Noise Input Test 103
2.2.2 AGC Input Below Threshold for Active Satellite Transponder Test 104
2.2.3 AGC Input Saturated for Active Satellite Transponder Test 104
2.2.4 What to do if Problems are Found 104
3.0 SIGNAL STRENGTH PEAKUP 105
3.1 Enabling Peakups and Configuring Peakup Parameters 105
3.1.1 Enabling Peakups 105
3.1.2 Peakup Holdoff 105
3.1.3 Peakup Step Sizes 105
3.2 Peakup Algorithm 106
3.3 Peakup Errors 107
3.4 Poor Peakup Performance – The Importance of Proper Step Size Selection 107
3.4.1 How Signal Fading, Noise, and Mechanical Hysteresis Affect Peakup Performance107
3.5 Step Size Selection 108
3.5.2 Pointing Error (degrees) Given Pointing Loss (dB) Relationship 109
3.5.3 Determining The Antenna Azimuth and Elevation Count per Degree Characteristic110
3.5.4 Azimuth Step Size Correction Factor (for Elevation over Azimuth Antenna Mounts)111
3.5.5 Recommended Step Sizes for Various Antennas 112
3.6 Specifying the Satellite Band When Upgrading From a Previous Version of the Software 112
4.0 OTHER FEATURES INTRODUCED WITH THE RC2000 V2.6X 112
4.1 Sticky Key Jog 113
4.2 Signal Strength Display From Manual Mode 113
4.3 New CONFIG Mode Items 113
4.4 Polarization Control Options 114
4.4.3 RC2000 Non Volatile Memory Satellite Data Polarization Position Fields 115
4.4.4 Polarization Code Display 115
4.4.5 AutoPol Disabled for Dual Port Feeds 115
4.5 Azimuth/Elevationa Axis Runaway Alarm Disable 116
I-4.5.1 Configuring the Runaway Sensing System 116
4.6 Upgrading Controllers 117
I-4.6.1 Precautions 117
I-4.6.2 Rotating Feed Present CONFIG Mode Item Replaced 117
I-4.6.3 Satellite Band Data 117