Research Concepts RC2000C - Manual (Page 65)

RC2000C Az/El Tracking Antenna Controller Chapter 5 Modes Function Description 57
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ELEV MAX POSITION ERROR: 0 CONFIG
0-10 COUNTS ENT,BKSP,SCRLL ^v
5.10.8 Time and Date Settings
Access to the Time and Date CONFIG mode items is permitted only when the Expert Access flag is set.
ENTER TIME (HH.MM.SS): 08.46.00 CONFIG
USE 0-9 OR . ENT,BKSP,SCRLL ^v
The real-time clock must be set to establish a time reference for all tracking data stored in the controller.
Enter the local time using the 0-9 keys and the “.” key to separate the hours, minutes, and seconds
fields. Each field must have two digits entered; i.e., 8 must be entered as 08 or the unit will not accept
the entry. The time cannot be changed for daylight-savings time purposes once valid track data is
stored, or the unit will not function properly.
ENTER DATE (MM.DD.YY):07.03.01 CONFIG
USE 0-9 OR . ENT,BKSP,SCRLL ^v
Enter the current date in the format shown. Again, use the 0-9 keys to enter the month, day, and year
fields, and use the “.” key to separate fields. Single digit fields must be entered with a 0 preceding the
significant digit, as shown in the example for 07.03.92.
5.10.9 Signal Strength Parameters
The controller has to have signal strength information for tracking inclined orbit satellites. Signal
strength information is generally obtained from the receiver's automatic gain control (AGC) system. The
procedures used to adjust the controller’s AGC input circuits and obtain these parameters are described
in section 4.4.1 - AGC Adjustment and Configuration. Access to these CONFIG mode items is
permitted only when the Expert Access Flag is set.
AGC POLARITY FLAG;1 CONFIG
0-NEGATIVE 1-POSITIVE ENT,BKSP,SCRLL ^v
The AGC Polarity Flag tells the controller what the sense is on the input AGC voltage used for tracking.
A positive sense is defined as a voltage that increases in magnitude as the RF signal strength
increases. If the AGC voltage decreases as the RF signal increases, its sense is considered negative.
Enter the appropriate value, either 0 or 1, followed by ENTER to key in the value.
AGC C BAND THRESHOLD:125 CONFIG
0 - 999 ENT,BKSP,SCRLL ^v
When the receiver is tuned to a C band satellite and the signal strength is above the AGC C Band
Threshold value, it is assumed that a satellite signal is present. The same threshold is applied to both
AGC channels.
AGC K/L BAND THRESHOLD:150 CONFIG
0 - 999 ENT,BKSP,SCRLL ^v
This is similar to the C band threshold described above, except it pertains to Ku or L band. If the signal
strength is above the AGC K/L Band Threshold value when the receiver is tuned to a Ku or L band
satellite, the controller assumes that a satellite signal is present.
5.10.10 Antenna Parameters
The following items specify antenna related parameters that are used by the tracking system. Access
to these items is only permitted when the Expert Access flag is set.
ANTENNA LATITUDE LL.L: 38.9 N CONFIG