RESEARCH CONCEPTS RC2000C Manual page 54

48 RC2000C Polar Tracking Antenna Controller
SAT:TELSTAR301 SELECT:SBS 6
When this screen is displayed the ARROW keys may be used to jog the antenna in elevation and
azimuth, 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 ENTER key is depressed the user is
usually prompted to specify the satellite longitude.
If the satellite name chosen is already stored in non-volatile memory, the user is presented with the
following screen.
SELECT:SBS 6
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
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
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
SELECT BAND 0-C,1-K,2-C&K,3-L:
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
SAT INCLINATION (2-16):
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
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Chapter 5
FAST
DUPLICATE ENTRY
ENT,BKSP
ENT,BKSP
POL: 75
Modes Function Description
SETUP
SETUP
SETUP
SETUP
SETUP
SETUP