Research Concepts RC2000C - Manual (Page 56)

48 RC2000C Az/El Tracking Antenna Controller Chapter 5 Modes Function Description
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When this screen is displayed the AZIM CCW, AZIM CW, EL DOWN, and the EL UP keys may be used
to jog the antenna in azimuth and elevation, the SPEED key may be used to toggle the azimuth and
elevation jog speed, and the CW, CCW, H and V keys may be used to adjust the polarization (the H and
V keys are active only if at least one satellite has been previously stored in non-volatile memory). The
SCROLL UP and SCROLL DOWN keys may be used to select the satellite name (in the 'SELECT:'
field) which will be stored in non-volatile memory. If the user selects the 'USER' entry from the satellite
list, he or she will be prompted to enter in a string of characters (after the ENTER key is pressed). The
entry of user defined satellite names is described at the end of this section. While this screen is active
the user peaks up the antenna on the satellite which is to be stored in non-volatile memory. When the
user has peaked up the antenna on the satellite the ENTER key is depressed.
If the satellite name chosen is already stored in non-volatile memory, the user is presented with the
following screen.
SELECT:SBS 6 DUPLICATE ENTRY SETUP
OVERWRITE EXISTING DATA, USE YES/NO KEYS
If the user selects NO the initial screen is displayed and the selection process is repeated. The user is
next prompted to specify whether or not the satellite is in an inclined orbit.
SELECT: SBS 6 SETUP
IS THIS AN INCLINED ORBIT SAT (YES/NO)?
The user is next prompted to specify the satellite longitude with the following screen.
SELECT:SBS 6 SETUP
ENTER SAT LON LLL.L: 99.0 W 0-9.ENT,BKSP
If the satellite name was not user defined, a value will be present in the longitude field. The longitude is
specified in <degrees>.<tenths_of_degrees>. Note that the satellite longitude information of
geostationary satellites will be used to calculate the antenna azimuth scale factor when the Azim
Constant CONFIG mode item is initialized to zero. Be very careful specifying the longitude of
geostationary satellites. An error in the entry of longitude data for a geostationary satellite will not affect
the controller's ability to position the antenna on that satellite, but it may cause severe problems when
attempting to initiate a track on an inclined orbit satellite in the vicinity of the geostationary satellite.
If the satellite being set up is an inclined orbit satellite, the user will next be presented with the following
prompt for the satellite band.
SELECT: SBS 6 SETUP
SELECT BAND 0-C,1-K,2-C&K,3-L: ENT,BKSP
The response to this prompt will be either the 0, 1, 2, or 3 key.
For an inclined orbit satellite, the user will receive the following prompt for the satellite inclination.
SELECT: SBS 6 SETUP
SAT INCLINATION (2-16): ENT,BKSP
At this prompt, the user should enter the inclination angle of the satellite's orbital plane to the earth's
equatorial plane.
For both geostationary and inclined orbit satellites, the user is next prompted to specify the horizontal
and vertical polarizations.
SELECT:SBS 6 PL: 75 SETUP
USE CW, CCW TO ADJUST - H, V KEYS TO SET
When this screen is displayed the CW and CCW keys may be used to adjust the polarization, and the H
and V keys may be used to set each polarization. Note that if polarization control is not implemented on
the antenna system the Rotating Feed Present CONFIG mode item should be set to zero - this specifies