Garmin 740 S Owners Manual
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GPSMAP 700 Series Owner’s Manual 67 Radar Configuring Data Fields on a Radar You can select the type of data shown within a data field. 1. From the Home screen, select Radar. 2. Select Cruising, Harbor, offshore, or Sentry mode. 3. Select Menu > Radar Setup > overlay Numbers. 4. Select or to select a data overlay. 5. Touch a data field. 6. Select a category of data. 7. Select the data to be displayed. Configuring the Navigation Inset on the Radar Screen The navigation inset is shown only when the boat is navigating to a destination. 1. From the Home screen, select Radar. 2. Select Cruising, Harbor, offshore, or Sentry mode. 3. Select Menu > Radar Setup > overlay Numbers. 4. Select or to select a data overlay. 5. Select Navigation Inset. 6. Select Nav. Inset Config. 7. Complete an action: • Select Route Leg Details > on to show waypoint velocity made good (VMG) when navigating a route with more than one leg. • Select Next Turn > Distance to show next-turn data based on distance. • Select Next Turn > Time to show next-turn data based on time. • Select Destination, and select Distance, Time to Destination, or Arrival to indicate how the destination data appears. Showing the Compass Tape on the Radar Screen The compass tape appears in a row across the top of the radar screen. It shows the present heading, and an indicator that shows the bearing to the desired course appears while navigating. 1. From the Home screen, select Radar. 2. Select Cruising, Harbor, offshore, or Sentry mode. 3. Select Menu > Radar Setup > overlay Numbers. 4. Select Show Compass Tape. Radar Display Settings Setting the Radar Color Scheme You can set the color scheme used for all Radar screens. This setting does not apply to the Radar Overlay. 1. From the Home screen, select Radar > Radar Setup > Appearance > Color Scheme. 2. Select White, Black, or Blue. Setting the Radar Display Orientation You can set the perspective of the radar display. The orientation setting applies to every radar mode. This setting does not apply to the Radar Overlay. 1. From the Home screen, select Radar > Radar Setup > orientation . 2. Complete an action: • Select North Up to set the top of the radar to a north heading. • Select Head Up to set the top of the radar according to the heading data received from a heading sensor, also known as the magnetic heading. The heading line appears vertically on the screen. • Select Course Up to set the radar so the direction of navigation is always up.
68 GPSMAP 700 Series Owner’s Manual Radar Shifting the Field of View on the Radar Screen You can shift your present location toward the bottom of the screen automatically as your speed increases. Enter your top speed for the best results. This setting applies to every radar mode. This setting does not apply to the Radar Overlay. 1. From the Home screen, select Radar > Radar Setup > Appearance > Look-Ahd Spd > on. 2. Enter the top speed at which you expect to navigate. 3. Select Done. Radar Navigation Settings Showing the Heading Line on the Radar Screen You can show an extension from the bow of the boat in the direction of travel on the Radar screen. This setting does not apply to the Radar Overlay. From the Home screen, select Radar > Radar Setup > Appearance > Heading Line > Show. Showing and Hiding Range Rings on the Radar Screen The range rings help you to visualize distances on the Radar screen. This setting does not apply to the Radar Overlay. From the Home screen, select Radar > Radar Setup > Appearance > Rings > Show. Showing Navigation Lines on the Radar Screen The navigation lines indicate the course you have set using Route To, Guide To, or Go To. This setting does not apply to the Radar Overlay. From the Home screen, select Radar > Radar Setup > Appearance > Nav Lines > Show. Radar Scanner and Antenna Settings Setting the Antenna Rotation Speed NoTe: You can set the rotation speed for GMR 18, 18 HD, 24, 24 HD, 404, 406, 604 xHD, 606 xHD, 1204 xHD, or 1206 xHD radars only. 1. From the Home screen, select Radar > Radar Setup > Rotation Spd . 2. Complete an action: • Select Normal Speed. • Select High Speed to increase the speed at which the antenna rotates, which increases the speed at which the screen updates. Setting the Radar Antenna Size You can indicate the size of the radar antenna in order to optimize the radar picture. Until you specify the antenna size, the “Radar needs to be configured” message appears. NoTe: You can set the antenna size for GMR 404, 406, 604 xHD, 606 xHD, 1204 xHD, or 1206 xHD radars only. 1. From the Home screen, select Radar > Radar Setup > Antenna Size. 2. Select 4 Foot or 6 Foot. Turning On and Configuring a Radar No-transmit Zone You can indicate an area within which the radar scanner does not transmit signals. NoTe: You can set a radar no-transmit zone for GMR 604 xHD, 606 xHD, 1204 xHD, or 1206 xHD radars only. 1. From the Home screen, select Radar > Radar Setup > Adjust No-Xmit Zone > Move No-Xmit Zone. The no-transmit zone is indicated by a shaded area on the Radar screen. 2. Select Angle 1. 3. Touch and drag the cursor to adjust the starboard no-transmit angle. 4. Select Angle 2. 5. Touch and drag the cursor to adjust the port no-transmit angle.
GPSMAP 700 Series Owner’s Manual 69 Radar Front-of-boat Offset The front-of-boat offset compensates for the physical location of the radar scanner on a boat, if the radar scanner does not align with the bow-stern axis. Measuring the Potential Front-of-boat Offset 1. Using a magnetic compass, take an optical bearing of a stationary tar get located within viewable range. 2. Measure the target bearing on the radar. 3. If the bearing deviation is more than +/- 1°, set the front-of-boat of fset. Setting the Front-of-boat Offset Before you can set the front-of-boat offset, you must measure the potential front-of-boat offset (see previous procedure). The front-of-boat offset setting configured for use in one radar mode is applied to every other radar mode and to the Radar Overlay. 1. From the Home screen, select Radar > Radar Setup > Front of Boat. 2. Select and hold Up or Down to adjust the offset. Radar Overlay Display Appearance Showing Tracks on the Radar Overlay You can set whether vessel tracks appear on the Radar Overlay. From the Home screen, select Charts > Radar overlay > Menu > Waypoints & Tracks > Tracks > on. Selecting a Waypoint Label Type You can select the type of labels shown with waypoints on the Radar Overlay. 1. From the Home screen, select Charts > Radar overlay > Menu > Waypoints & Tracks > Waypoint Display. 2. Select a waypoint. 3. Complete an action: • Select Label to identify waypoints using labels. • Select Comment to show comments as waypoint labels. • Select Symbol to identify waypoints using symbols. Showing Other Vessels on the Radar Overlay AIS requires the use of an external AIS device and active transponder signals from other vessels. You can configure how other vessels appear on the Radar Overlay. The display range setting configured for the Radar Overlay is applied only to the Radar Overlay. The details and projected heading settings configured for the Radar Overlay are also applied to all radar modes. 1. From the Home screen, select Charts > Radar overlay > Menu > other Vessels > AIS Display Setup . 2. Complete an action: • Select AIS Display Range to indicate the distance from your location in which AIS vessels appear, and select a distance. • Select Details > Show to show details about AIS-activated vessels. • Select Proj. Heading to set the projected heading time for AIS-activated vessels, and select Done. • Select Trails to show the tracks of AIS vessels, and select the length of the track that appears using a trail.
70 GPSMAP 700 Series Owner’s Manual Radar Radar Overlay Navigation Display Settings Changing the Map Zoom Detail You can adjust the amount of detail shown on the map, at different zoom levels, for the Radar Overlay. 1. From the Home screen, select Charts > Radar overlay > Menu > Setup > Chart Setup > Detail. 2. Select a level of detail. Showing and Configuring the Heading Line The heading line is an extension drawn on the map from the bow of the boat in the direction of travel. You can configure the appearance of the heading line on the Radar Overlay . 1. From the Home screen, select Charts > Radar overlay > Menu > Setup > Chart Setup > Heading Line. 2. Complete an action: • Select Distance > Change Distance, and enter the distance to the end of the heading line. • Select Time > Change Time, and enter the amount of time until you reach the end of the heading line. 3. Select Done.
GPSMAP 700 Series Owner’s Manual 71 Sonar Sonar When connected to a transducer, the following 700 series models can be used as fishfinders: • GPSMAP 720s • GPSMAP 740s • GPSMAP 750s Sonar Views The chartplotter shows sonar data using three different views: a full-screen view, a split-zoom view, and a split-frequency view. Full-screen Sonar View The full-screen sonar view shows a full-view graph of sonar readings from a transducer . The range scale along the right side of the screen shows the depth of detected objects as the screen scrolls from the right to the left. From the Home screen, select Sonar > Full Screen. Full-screen Sonar View ➌ ➍ ➋ ➏ ➐ ➎ ➊ ➊Range adjustment buttons➋Depth, water speed, and unit voltage ➌Suspended target➍Bottom ➎Range➏GPS speed and GPS heading ➐Transducer frequency Setting the Zoom Level on the Full-screen View You can zoom in to a section of the full-screen sonar view. 1. From the Home screen, select Sonar > Full Screen > Menu > Zoom. 2. Complete an action: • Select 2x Auto Zoom to zoom in on the sonar data at two-times magnification. • Select 4x Auto Zoom to zoom in on the sonar data at four-times magnification. • Select Manual Zoom to set the depth range of the magnified area manually. Select View Up or View Down to set the depth range of the magnified area, select Zoom In or Zoom out to increase or decrease the magnification of the magnified area, and select Done. • Select Bottom Lock to zoom in on sonar data from the bottom depth, select Up or Down to set the depth range of the magnified area, and select Done.
72 GPSMAP 700 Series Owner’s Manual Sonar Split-zoom Sonar View The split-zoom sonar view shows a full-view graph of sonar readings, and a magnified portion of that graph, on the same screen. From the Home screen, select Sonar > Split Zoom. Split-zoom Sonar View ➎ ➊ ➌ ➐ ➏ ➋ ➍ ➊Depth, water speed, and unit voltage➋Zoomed depth scale ➌GPS speed and GPS heading➍Zoom window ➎Range➏Zoom window ➐Transducer frequency Split-frequency Sonar View In the split-frequency sonar view, the left side of the screen shows a full-view graph of 200 kHz frequency sonar data, and the right side of the screen shows a full-view graph of 50 kHz frequency sonar data. NoTe: The split-frequency sonar view requires the use of a dual-frequency transducer. From the Home screen, select Sonar > Split Frequency. Split-frequency Sonar View Changing from One Sonar View to a Different Sonar View 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Change Sonar. 4. Select a different sonar view.
GPSMAP 700 Series Owner’s Manual 73 Sonar Depth Log If you are using a depth-capable transducer, or are receiving water depth information via NMEA 0183 or NMEA 2000, the Depth Log displays a graphic log of depth readings over time. The depth appears in the upper-left corner of the screen. The graph scrolls to the left as information is received. From the Home screen, select Sonar > Depth Log. Setting the Depth Log Range and Time Scales You can indicate the amount of time and the range of depth that appear in the depth log. 1. From the Home screen, select Sonar > Depth Log. 2. Select Menu. 3. Complete an action: • Select Duration to set the time-elapsed scale ➊. The default setting is 10 minutes. Increasing the time-elapsed scale allows you to view depth variations over a longer period of time. Decreasing the time-elapsed scale allows you to view more detail over a shorter period of time. • Select Scale to set the depth-range scale ➋. Increasing the depth-range scale allows you to view more variation in depth. Decreasing the depth-range scale allows you to view more detail in the variation. The present depth is shown in the top-left corner ➌. • Select Reset to recalculate the automatic depth scale range. Reset appears only when the depth-range scale setting is set to Auto. ➌ ➊ ➋ Depth Log Transducer Temperature Log If you are using a temperature-capable transducer, or are receiving water temperature via NMEA 0183 or NMEA 2000, the Temperature Log screen keeps a graphic log of temperature readings over time. The present temperature and depth appear in the upper-left corner of the screen. The temperature appears along the right side and the time elapsed appears along the bottom. The graph scrolls to the left as information is received. From the Home screen, select Sonar > Temp Log. Setting the Temperature Log Range and Time Scales You can indicate the amount of time and the range of temperatures that appear in the transducer temperature log. 1. From the Home screen, select Sonar > Temp Log. 2. Select Menu.
74 GPSMAP 700 Series Owner’s Manual Sonar 3. Complete an action: • Select Duration to set the time-elapsed scale ➊. The default setting is 10 minutes. Increasing the time- elapsed scale allows you to view temperature variations over a longer period of time. Decreasing the time-elapsed scale allows you to view more detail over a shorter period of time. • Select Scale to set the temperature-range scale ➋. The default setting is 4 degrees. Increasing the temperature-range scale allows you to view more variation in temperature. Decreasing the temperature- range scale allows you to view more detail in the variation. • Select Reset to recalculate the automatic depth scale range. Reset appears only when the scale setting is set to Auto. ➊ Transducer Temperature Log ➋ Waypoints on the Sonar Screen Pausing the Sonar Display 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Pause Sonar. Creating a Waypoint on the Sonar Screen 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Pause Sonar. 4. Touch and drag the intersection point of the depth line and the distance line to set the location of the waypoint. 5. Select Create Waypoint. Sonar Display Appearance You can define and adjust settings for all sonar views. Setting Sonar Screen Scroll Speed You can set the rate at which the sonar scrolls from right to left. 1. From the Home screen, select Sonar > Sonar Setup > Scroll Speed. 2. Complete an action: • Select Ultrascroll ™, Fast, Medium, or Slow to set the scroll speed manually. • Select Auto to have the scroll speed automatically adjust to the water speed of your boat, if you are using a water-speed sensor or a speed-capable transducer.
GPSMAP 700 Series Owner’s Manual 75 Sonar Showing Surface Noise You can set whether the sonar returns near the surface of the water appear. Hide surface noise to help reduce clutter. From the Home screen, select Sonar > Sonar Setup > Surface Noise > Show. Showing and Configuring a Depth Line You can set whether a quick-reference depth line appears. 1. From the Home screen, select Sonar > Sonar Setup > Depth Line > Show. 2. Touch and drag the reference line to set the depth of the line. Showing the A-Scope The A-Scope is a vertical flasher along the right side of the screen that shows instantaneously the range to targets along a scale. From the Home screen, select Sonar > Sonar Setup > A-Scope > on. Setting Pic Advance The picture advance setting allows the sonar picture to advance faster by drawing more than one column of data on the screen for each column of sounder data received. This is especially helpful when you are using the sounder in deep water, because the sonar signal takes longer to travel to the water bottom and back to the transducer. The 1/1 setting draws one column of information on the screen per sounder return. The 2/1 setting draws two columns of information on the screen per sounder return, and so on for the 4/1 and 8/1 settings. 1. From the Home screen, select Sonar > Sonar Setup > Pic. Advance. 2. Select a picture advance setting. Showing Overlay Numbers You must have a water-speed sensor or a speed-capable transducer to show water-speed information, and you must have a water-temperature sensor or a temperature-capable transducer to show water-temperature information. You can set water temperature, unit voltage, water speed (if your transducer is capable), and navigation information to appear automatically on the Sonar screens. The navigation information always includes GPS speed and GPS heading, and includes bearing and off-course information while navigating. 1. From the Home screen, select Sonar > Sonar Setup > overlay Numbers. 2. Complete an action: • Select Depth > Show. • Select Water Temp > Auto. • Select Water Speed > Auto. • Select Unit Voltage > Show. • Select Navigation > Auto. If you select Auto, and if the information is available, the data appears on the Sonar screen. Configuring the Appearance of Suspended Targets You can set how the sonar interprets suspended targets. 1. From the Home screen, select Sonar > Sonar Setup > Appearance > Fish Symbols. 2. Complete an action: • Select to show suspended targets as symbols with background sonar information. • Select to show suspended targets as symbols with background sonar information and target depth information. • Select to show suspended targets as symbols. • Select to show suspended targets as symbols with target depth information.
76 GPSMAP 700 Series Owner’s Manual Sonar Showing and Configuring the Whiteline You can highlight the strongest signal from the bottom to help define the hardness or softness of the signal. 1. From the Home screen, select Sonar > Sonar Setup > Whiteline . 2. Complete an action: • Select High to turn on the whiteline with the most-sensitive setting. Almost all strong returns are highlighted in white. • Select Medium to turn on the whiteline with many strong returns highlighted in white. • Select Low to turn on the whiteline with the least-sensitive setting. Only the strongest returns are highlighted in white. Setting the Color Scheme 1. From the Home screen, select Sonar > Sonar Setup. 2. Complete an action: • Select Color Scheme > Blue. • Select Color Scheme > White. Adjusting the Gain on the Sonar Screen You can control the sensitivity of the sonar receiver. To see more detail, increase the gain. If the screen is cluttered, decrease the gain. 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Gain. 4. Complete an action: • Select Auto to allow the chartplotter to adjust the gain automatically. • Select Up or Down to increase or decrease the gain manually. 5. Select Done. Adjusting the Noise Rejection on the Sonar Screen The Noise Rejection setting appears only when you have manually increased or decreased the gain setting (page 76). You can minimize the appearance of weak sonar returns by increasing the noise rejection. 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Noise Reject. 4. Select Up or Down. Selecting Frequencies You can indicate which frequencies appear on the sonar screen when using a dual frequency transducer. You can show data from a 200 kHz sonar signal, data from a 50 kHz sonar signal, or data from both signals simultaneously. 1. From the Home screen, select Sonar. 2. Select a sonar view. 3. Select Menu > Frequency. 4. Complete an action: • Select 200 kHz to show data from a 200 kHz sonar signal. This is useful mainly for more-shallow, inland waters. • Select 50 kHz to show data from a 50 kHz sonar signal. This is useful mainly for deeper waters. • Select Dual to show both 200 kHz and 50 kHz data on a split screen.