Select DirecTV 1R/2/3 @ 101 and enter your zip code. The correct elevation and azimuth will be displayed. To determine the correct tick mark for the tilt, subtract the result from 90. For example, if the tilt shows 26.3, it would be 90 - 26.3 = 63.7 If the tilt is negative, for example, -23.5, it would be 90 - (-23.5) = 113.5.
(The results should line up with the output from an H20, except the H20 will round the numbers).