AB-COM IPBOX 400S Manual - page 54
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14.4. DiSEqC 1.2 positioner
If you have a DiSEqC1.2 motorized system, then you can use the DiSEqC function.
Select the satellite name first, and switch the DiSEqC Enable and put other required options.
Select the right TP to catch the strong Signal Strength.
14.5 USALS setting
USALS is very convenient motorized DiSEqC system that support DiSEqC 1.3 command and also
can get the satellite position automatically if you know your geographical location.
If you have USALS motorized system, then you can use the USALS as follows.
Select the tuner that is connected with USALS system.
Switch USALS Enable and Select the satellite name which will be used to identify a motor system.
Put your longitude and Latitude and press OK button to start search satellite.