RayTech Navigator User’s Guide
Controls to Adjust the Radar Picture
Control | Option | Function | Default Setting |
GAIN | GAIN | Controls the strength of the target returns | AUTO |
| SEA | Reduces sea returns | |
| RAIN | Reduces close rain or snow returns | OFF |
| FTC | Reduces distant rain or snow returns | OFF |
SEA | SEA | Reduces sea returns | |
MULTI | TUNE | Fine tunes the receiver | AUTO |
TARGETS | INT REJ | Turns interference rejection on/off | ON |
| EXPANSION | Turns target expansion on/off | OFF |
| WAKES | Turns wakes on/off and selects wakes length | OFF |
Identifying False Echo Returns
Not all echoes are direct returns to the radar antenna. Occasionally signals appear at positions where there is no actual target. These are called false echoes, and may be caused by side lobes, ghost images, indirect echoes or multiple echoes.
This subsection briefly describes the echo patterns that can be produced by false echoes and the likely cause. It should be noted that the radar operator, through observation, practice, and experience, can generally detect these conditions very quickly. These effects can usually be minimized using the radar controls.
