Please tell me how to find 61.5W, I got from Wal-Mart 'Lensatic Compass' that works or not. also that one has 2line, bottom numbers are 0-60 and upper # are 0-360. Satellite West Longitude(0° to +360°) => 61.5 Latitude (+90° to -90°) => 42.9 Longitude (0° to +360°)=> 78.9 ° Elevation => 37.5 °Azimuth (Geographic) => 155.3 ° LNBF polarization tilt (skew) => -17.8 Please help me.