RayTech Navigator User’s Guide
5-10
Controls to Adjust the Radar Picture
Control
Option
Function
Default Setting
GAIN
GAIN
SEA
RAIN
FTC
Controls the strength of the target returns
Reduces sea returns
Reduces close rain or snow returns
Reduces distant rain or snow returns
AUTO
AUTO-HARBOR
OFF
OFF
SEA
SEA
Reduces sea returns
AUTO-HARBOR
MULTI
TUNE
Fine tunes the receiver
AUTO
TARGETS
INT REJ
EXPANSION
WAKES
Turns interference rejection on/off
Turns target expansion on/off
Turns wakes on/off and selects wakes length
ON
OFF
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.
Содержание Marine GPS System
Страница 7: ...vi...
Страница 32: ...RayTech Navigator User s Guide 3 2 Figure 3 1 Navigator s Main Interface...
Страница 43: ...Using Navigator s Interface 3 13 Figure 3 22 Standard Functionbar Menu Hierarchy...
Страница 48: ...RayTech Navigator User s Guide 3 18 Figure 3 31 Radar Functionbar Menu Hierarchy...
Страница 50: ...RayTech Navigator User s Guide 3 20 Gain Button Figure 3 35 Radar Functionbar Gain Button Descriptions...
Страница 53: ...Using Navigator s Interface 3 23 Figure 3 38 Sonar Functionbar Menu Hierarchy...