Research Concepts RC2000A - Manual (Page 41)

RC2000A Dual Axis Antenna Controller Chapter 4 Modes 41
prompts for the antenna latitude and longitude, and the longitude, azimuth position count, and elevation
position count values for a pair of satellites which have been located with the controller.
The Angle Display Enable item is the controlling item for the other items described in this section.
When this parameter is set to 1 (enabled), azimuth and elevation positions are displayed in an angle
format using the other items described in this section.
ANGLE DISPLAY ENABLE:0 CONFIG
0-DISABLE, 1-ENABLE ENT,BKSP,SCRLL ^v
The Azim Scale Factor and Azim Offset items are used to calibrate the display of azimuth position
according to the following formula:
Display_Angle = 180.0 +
((100 * (Azim_Position_Cnt - Azim_Offset)) / Azim_Scale_Factor)
(Northern Hemisphere)
Display_Angle = 360.0 -
((100 * (Azim_Position_Cnt - Azim_Offset)) / Azim_Scale_Factor)
(Southern Hemisphere - Note the displayed angle is adjusted by adding or subtracting 360.0 so that the
result is in the range of 0 to 360.0 degrees. )
The range of values that the user must specify for the 'Azim Offset' CONFIG mode item is 0 to 65535.
Values in the range of 32768 to 65535 are converted to negative offset values for Azim_Offset in the
above equations according to the following relationship:
Azim_Offset = Azim Offset (CONFIG mode item entered by user) - 65536
This is necessary because it is not possible to enter negative values via the keypad on the RC2000A.
AZIM SCALE FACTOR: 1 CONFIG
ENT,BKSP,SCRLL ^v
AZIM OFFSET: 0 CONFIG
ENT,BKSP,SCRLL ^v
The Elev Scale Factor and Elev Offset items are used to calibrate the display of elevation position
according to the following formula:
Display_Angle = (100 * (Elev_Position_Cnt + Elev_Offset)) / Elev_Scale_Factor
The range of values that the user must specify for the 'Elev Offset' CONFIG mode item is 0 to 65535.
Values in the range of 32768 to 65535 are converted to negative offset values for Elev_Offset in the
above equations according to the following relationship:
Elev_Offset = Elev Offset (CONFIG mode item entered by user) - 65536
This is necessary because it is not possible to enter negative values via the keypad on the RC2000A.
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