Radar
Point and click for larger images.
When you move the mouse cursor, which is normally an arrow cursor, over an active button, the cursor will become a hand with index finger. Then press the left mouse button to activate this button. "Point and click" refers to this.
Gain (signal amplification)
1 -Turn up Gain (signal amplification)
2- Turn up until the entire screen is covered with noise.
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Point with the mouse cursor in the route where the green bar in Gain is. You will then see a hand with the index finger. Hold down the left / right mouse button while moving the mouse to the right (increase) or left (decrease).
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When you turn up Gain, all the antenna signals will be displayed on the screen as red (strong), green (medium) or yellow (weak) areas (spots). These represent land, boats, buoys, etc. It is up to you to interpret what it is by comparing with the map.
If you increase the gain too much, the internal noise from the electronics will also be displayed. It is the one that makes the screen "spaghlet". When you dampen a little, it will disappear, and you have maximum amplification without noise.
Seaclutter (signal from waves near the boat)
1 - Turn up the Seaclutter
3 - Turn down until the noise is gone. You see that there is a seaclutter (sea echo) around your own boat.
2 - But not too much - then you also attenuate the weaker signals from iron bars, buoys and other weak echoes.
3 - a little back. Now you have attenuated the wave signals, and at the same time kept the signals from buoys and other weak signals.
Range and range rings.
Point with the mouse cursor in the route where the green bar in Sea is. You will then see a hand with the index finger. Hold down the left / right mouse button while moving the mouse to the right (increase) or left (decrease).
When you "turn up" Seaclutter, you attenuate the signals closest to the boat, and outwards as you turn up.
You must pay close attention when using Seaclutter so that you do not lose small, weak echoes you should see - such as small boats, buoys, stakes, etc. Many collisions have occurred because you have dampened too much. It is often referred to as the "collision button".
EBL - VRM- MARKER
Radar Motion
Point and click the small RM (Relative Motion) or TM (True Motion) buttons. The selection will be in capital letters above these buttons.
In Relative Motion, your own boat is stationary on the radar screen. Everything else moves relative to your own boat.
In True Motion, your own boat, and other boats, will move across the radar screen in the true course direction. What does not move - land, buoys, boats lying still etc. will lie calmly on the screen.
Radar Mode
Point with the mouse cursor on the squares + or - and press the left mouse button to increase the decrease Range.
You turn the range rings on and off in the same way using the On (Off) button.
Range is always the distance from the center of the radar circle to the periphery - ie radius, and is always measured in nautical miles, and doubles 0.75 - 1.5 - 3 - 6 - .....> when you press +.
By placing the boat away from the center (as here), we increase the visibility forward without increasing the Range.
Here you read the marker's bearing and range from your own boat.
You choose whether you want True or Relative bearing by pointing the mouse cursor at T or R and then pressing the left mouse button.
EBL - electronic bearing line.
VRM - variable range ring.
To switch on / off, tap the EBL 1 or VRM1 buttons. The data panes open and show values. You can "capture" and move them by moving the radar cursor (a white cross) on the dotted white line or circle and moving them by holding down the left mouse button while moving the mouse. You can read the new values in the value boxes.
Note that the bearing in EBL 1 follows the selection in Marker. In this case, both are TRUE.
North Up
Head Up
Information window
Uses GPS as log - shows COG, SOG and no drift.
Uses Log which only shows speed through the water. Cannot calculate COG, SOG or drift.
Point and click the small HU, NOW or CU buttons. You see the selection in the box above.
There are 3 radar modes. You can sail with the course line pointing in the course direction as you have drawn the course on the map. You sail then North Up and the radar image are oriented as in the map. If you change course, the land will stand still and only the course line will change.
Or you can choose to sail with Head Up. The radar image turns, and the course line points towards 000 ° on the bearing. If you change course, the land will move the opposite of the way you turn, but the course line will still point straight up.
If you choose to sail with Course Up, it is similar to Head Up, but it is significantly different. You see that the bearing has turned so that your course is displayed at the top of the course line. When you turn, only the course line will move, while the land is at rest. When you have finished turning, press CU again. The radar image will "turn" so that the course line again points straight up - with the new course at the top.
Course Up
The information window shows:
HDG Course (Compass Course)
STW Speed through the water
COG Course over ground (seabed)
SOG Speed over the ground
NAV GPS Uses GPS - shows latitude and longitude
LOG GPS Uses GPS as log
Set and Drift The course and speed of the drift
Tap the small GPS or Sea buttons to select type of log.
Uses GPS as log - finds COG, SOG and in this case drift sets 220 ° - 1.5 knots.