Operation
TABLE 5-5 STEPTRACK PARAMETERS
PARAMETER DEFAULT DESCRIPTION
Sun outage
protection
Enabled
Sun outage protection works by inhibiting steptrack whenever the current
look angles are within a specific angle from the center of the sun. The
angle used is the -3 dB beamwidth plus the radius of the sun's disk. A
delay of up to 10 minutes may result. The ACU must contain the correct
site and time information for this parameter to function.
5.8.2.4.2 Edit Steptrack Parameters... Menu
This menu contains the steptrack parameters. For a description of the parameters
and the default settings, refer to Section 5.8.2.4.1.
The following parameters are included in this menu:
• Cycle time
• Receive -3 dB beamwidth [deg]
• Step size [deg]
• Position deadband [deg]
• Maximum no. of cycles
• Cycle to start rate estimates
• Peaking correction limit (%BW)
• Weight adjustment value
• Low tracking signal level [dB]
• Signal threshold [dB]
• Axis to peak first
• # of samples
• Sun outage protection
To edit the steptrack parameters, use the following procedures:
1. From the Main menu, select Tracking functions..., then Immediate tracking...,
Steptrack..., and Edit steptrack parameters....
2. Using the arrow keys, move the cursor to the parameter to be changed and
press [ENTER].
3. A prompt will appear at the bottom of the screen. If the parameter is a
numeric value, the prompt will give the acceptable range of values to be
entered. Using the numeric keys, enter the desired value and press [ENTER].
If the parameter is a non-numeric value (e.g., Axis to peak first), the prompt
will instruct the user to change the value using the up and down arrow keys.
Pressing either the up or down arrow key will "toggle" through the choices for
the parameter. When the desired choice appears next to the parameter, press
[ENTER].
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