101Detailed OperationRange ControlThe range can be adjusted using the RNG and RNG keys. Values for the radar are shown in the table below.Unit GWX 68 ART2000/2100 RS-181ARange (nm) 2.5 - 320 10 - 240 10 - 240Tilt ControlThe Tilt (TILT) control is used to adjust the current tilt angle of the radar head when horizontal sweeping isbeing performed.While in the Horizontal mode, the tilt is adjusted using the TILT and TILT keys. Values for the radar areshown in the table below.Unit GWX 68 ART2000/2100 RS-181ATilt (°) -15° - +15° -15° - +15° -15° - +15°Bearing Control (GWX 68 and ART2000/2100 only)The Bearing (BRG) control is used to adjust the current bearing angle of the radar head when vertical sweepingis being performed. While in the Vertical mode, the bearing is adjusted using the BRG and BRG keys.Values shown in the table below are in degrees from straight ahead.Unit GWX 68 ART2000/2100 RS-181ABearing (°) 45L - 45R 45L - 45R NAGain ControlAvailable in MAP mode with the GWX 68, ART2000, and RS-181A; and also in WX mode with the GWX 68. Inthe GWX 68, the gain settings are set separately for the Map and WX modes. The gain is used to adjust the sensi-tivity of the radar receiver. It can be used in map mode to adjust the characteristics of the returns from the surface.While in the Ground mode, the gain is adjusted using the GAIN + and GAIN - keys. Pressing a Gain adjust-RadarRadar Range and Bearing ControlRadar Tilt ControlRadar Vertical View