Sea Tel DAC-2202, Инструкция по установке и эксплуатации

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DAC-2202 Antenna Control Unit Setup
5-5
5.12. STEP INTEGRAL
Sets the integration time for Tracking Mode . Units are in processor timing cycles and should be left at your antennas’
default value of 0000 for DishScan Tracking Mode . Refer to your antenna manual.
To manually update, press the LEFT arrow key to bring the cursor under the least significant character. Continue to
move the cursor until the desired character to be edited is underscored (selected). Use the UP or DOWN arrow keys to
increment or decrement the selected character.
Use the LEFT or RIGHT arrow key to move the cursor left or right to select other characters to modify. When you are
finished modifying press ENTER to execute the new value OR press NEXT to abort and exit setup mode.
5.13. SEARCH INC
Sets size of search pattern increment. Units are in pedestal step resolution. The suggested setting is equal to 1/2 the
3dB beamwidth of your antenna. Refer to your antenna manual.
To manually update, press the LEFT arrow key to bring the cursor under the least significant character. Continue to
move the cursor until the desired character to be edited is underscored (selected). Use the UP or DOWN arrow keys to
increment or decrement the selected character.
Use the LEFT or RIGHT arrow key to move the cursor left or right to select other characters to modify. When you are
finished modifying press ENTER to execute the new value OR press NEXT to abort and exit setup mode.
5.14. SEARCH LIMIT
Sets the overall peak to peak size of the search pattern. Units are in pedestal step resolution. After you have
optimized your Targeting (TRIM settings above) and have verified that you are able to accurately Target you may wish
to reduce the size of the Search pattern to avoid Tracking on an adjacent satellite (ie set to 50% of its default value to
only search half as far from your targeted position). Refer to your antenna manual.
To manually update, press the LEFT arrow key to bring the cursor under the least significant character. Continue to
move the cursor until the desired character to be edited is underscored (selected). Use the UP or DOWN arrow keys to
increment or decrement the selected character.
Use the LEFT or RIGHT arrow key to move the cursor left or right to select other characters to modify. When you are
finished modifying press ENTER to execute the new value OR press NEXT to abort and exit setup mode.
5.15. SWEEP INC
This parameter should be set for the desired azimuth sweep speed of a No Gyro search or the Sweep Increment
dimension of an Inclined Orbit search (refer to the search pattern information in paragraph 2.7).
When the GYRO TYPE parameter is 0000 the ACU is in “No Gyro” mode (no heading input is available for the ACU). A
SWEEP INC setting of 0040 = 9 degrees/second, 0060 = 13 degrees/second or 0080 = 18 degrees/second. Larger
antennas should have slower speeds and smaller antennas should have faster speeds. Refer to your antenna manual
for factory default setting for your antenna. If Gyro Type is set to 0000, you must set SWEEP INC correctly and
SATELLITE REFERENCE MODE
MUST also be turned ON .
If you want the ACU to conduct an Inclined Orbit search pattern you must set SWEEP INC to 192 if your antenna is a
Series 04, Series 06 or Series 09. Set to 193 if your antenna is a Series 97, Series 00 or Series 07. This parameter sets
the sweep increment dimension of the search pattern.
To manually update, press the LEFT arrow key to bring the cursor under the least significant character. Continue to
move the cursor until the desired character to be edited is underscored (selected). Use the UP or DOWN arrow keys to
increment or decrement the selected character.
Use the LEFT or RIGHT arrow key to move the cursor left or right to select other characters to modify. When you are
finished modifying press ENTER to execute the new value OR press NEXT to abort and exit setup mode.
5.16. SYSTEM TYPE parameter
The System Type parameter is used to enable a variety of system functions. With this parameter value set to 0,
the DAC software functions will be as follows:

External AGC, or Modem Lock, function is used to bring an external modem lock signal from a satellite
modem into the ACU as a positive ID that the antenna is on the desired satellite. This input is NOT used for
Tracking purposes, it is only used during search to identify when the antenna has acquired the correct
satellite. This external AGC function in the DAC software is
disabled. Expected input is 0 VDC when the
modem has RX sync/Network Lock and a positive voltage (+15 VDC max ) when the does not have lock.