Research Concepts RC2000C - Manual (Page 55)

RC2000C Az/El Tracking Antenna Controller Chapter 5 Modes Function Description 47
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Here is the procedure for setting the limits.
******************************* WARNING *****************************
THERE ARE NO RESTRICTIONS ON ANTENNA MOVEMENT
WHEN IN THE LIMITS MODE - USE CAUTION!
**************************************************************************
1. Go to LIMITS mode. Hit the ENTER key to advance beyond the warning message. The user will
be prompted with the following display.
AZ: 5000 EL: 5000 SS1,2: 2, 1 LIMITS
7 - SET CCW LIMIT 9 - SET DOWN LIMIT
2. The EL UP, EL DOWN, AZ CCW, AZ CW, POL CW, and POL CCW keys are active. The user
should jog the antenna to the desired position for the azimuth counter-clockwise limit and hit the 7
key. When the azimuth counter-clockwise limit is set, the 'SET CCW LIMIT' prompt message will
change to 'SET CW LIMIT' and the azimuth position count will change to 30. The sense of
azimuth movement is as seen by an observer located above the antenna.
3. The user should jog the antenna to the desired azimuth clockwise limit and hit the 7 key. The
prompt will then change to '* AZIM LIMITS SET *'.
4. The elevation limits are set in a similar manner. It is not necessary to set both the azimuth and
elevation limits when LIMITS mode is invoked. Either limit may be set independently of the other.
Note that if LIMITS mode is terminated by hitting the MODE key before both limits associated with a
given axis have been set, the limits which existed prior to this entry will be restored if the antenna has
not been moved to an antenna position of 1 on that axis. If the unit powers down while LIMITS mode is
active, the limit information for both axes will be invalidated.
5.6 SETUP Mode
SETUP mode allows a user to store a satellite name, azimuth and elevation positions, and horizontal
and vertical polarization presets into the controller's non-volatile memory. Once a satellite has been
stored in non-volatile memory, it may be recalled via AUTO mode. Up to 35 satellites may be stored in
non-volatile memory. Five of the satellites may be inclined orbit satellites
When SETUP mode is first invoked and the user has hit the ENTER key to advance beyond the
warning prompt, the user may jog the antenna in azimuth, elevation, and polarization using the AZ
CCW, AZ CW, EL DOWN, EL UP, POL CCW and POL CW keys. The satellite name display (to the
right of the 'SAT:' banner) and the H/V keys work in the same manner as for MANUAL mode. Note that
the polarization keys and H/V keys are active even when AUTOPOL is enabled. The SCROLL keys
may be used to select a satellite name from a list in EPROM memory to be assigned to the new satellite
entry. The satellite names accessed by the SCROLL keys are displayed to the right of the 'SELECT:'
banner.
Use the jog keys to position the antenna on the desired satellite, and the SCROLL keys to select the
satellite name. Hitting the ENTER key initiates a series of prompts where the user specifies the satellite
longitude, whether the satellite is in an inclined orbit, the satellite inclination and frequency band(s) (for
an inclined orbit satellite), and horizontal and vertical polarization values for the satellite.
Here is the procedure for storing a geostationary satellite into non-volatile memory. All of the
geostationary satellites should be stored before any inclined orbit satellites are stored. Depending on
the value of the Azim Constant CONFIG mode item, the location of geostationary satellites may be used
to initialize the tracking data for an inclined orbit satellite.
The procedure for storing an inclined orbit satellite is described in detail in section 4.4.4.
When SETUP mode is activated, the following screen is displayed.
AZ: 1292 EL: 10 PL: 66 H S:653 SETUP
SAT:TELSTAR301 SELECT:SBS 6 FAST