Garmin GPSMAP 8000 Glass Helm Series Instruction Manual

Contents

Reducing the transmit rate increases the spacing betweentransmit pulses and can resolve self-interference.Transmit Power: Reduces transducer ringing near the surface.A lower transmit power value reduces transducer ringing.Filter Width: Defines the edges of the target. A shorter filterdefines the edges of the targets, but may allow more noise.A longer filter creates softer target edges, and may alsoreduce noise.Transducer Diagnostics: Shows details about the transducer.Flip Left/Right: Changes the SideVü view orientation from leftto right.Sonar RecordingsRecording the Sonar DisplayNOTE: Not all models support sonar recording.1 Insert a memory card into the card slot.2 From a sonar view, select Menu > Record Sonar.15 minutes of sonar recording uses approximately 200 MB ofspace of the inserted memory card. You can record sonaruntil the card reaches capacity.Stopping the Sonar RecordingBefore you can stop recording the sonar, you must beginrecording it (Recording the Sonar Display).From a sonar view, select Menu > Stop Recording.Deleting a Sonar Recording1 Insert a memory card into the card slot.2 Select Sonar > Sonar Recordings.3 Select a recording.4 Select Delete.Playing Sonar RecordingsBefore you can play back the sonar recordings, you mustdownload and install the HomePort™ application and recordsonar data onto a memory card.1 Remove the memory card from the device.2 Insert the memory card into a card reader attached to acomputer.3 Open the HomePort application.4 Select a sonar recording from your device list.5 Right-click the sonar recording in the lower pane.6 Select Playback.RadarWARNINGThe marine radar transmits microwave energy that has thepotential to be harmful to humans and animals. Beforebeginning radar transmission, verify that the area around theradar is clear. The radar transmits a beam approximately 12°above and below a line extending horizontally from the center ofthe radar. Avoid looking directly at the radar, because the eyesare the most susceptible parts of the body.NOTE: Not all models support radar.When you connect your compatible chartplotter to an optionalGarmin marine radar, such as a GMR™ 1206 xHD or a GMR 24HD, you can view more information about your surroundings.The GMR transmits a narrow beam of microwave energy as itrotates to a 360° pattern. When the transmitted energy contactsa target, some of that energy is reflected back to the radar.Radar Display ModesNOTE: Not all modes are available with all radar devices and allchartplotters.Select Radar > Menu > Radar Menu > Change Radar, andselect a mode.Cruising Mode: Shows a full-screen image of the gatheredradar information.Harbor Mode: Intended for use in inland waters, this modeworks best with short-range signals (2 nm or less).Offshore Mode: Intended for use in open waters, this modeworks best with long-range signals.Sentry Mode: Allows you to put the radar into timed-transmitmode, in which you can configure a radar transmit andstandby cycle to conserve power. You can also enable aguard zone in this mode, which identifies a safe zone aroundyour boat. If you switch from Sentry mode to another mode,the radar switches to full-time transmission and disables allguard zones.Radar Overlay Mode: Shows a full-screen image of thegathered radar information on top of the Navigation chart.The Radar overlay displays data based on the most recentlyused radar mode.Dual Range Mode: Provides a side-by-side view of both short-range and long-range radar data.Changing the Radar Mode1 From a Radar screen, select Menu > Radar Menu >Change Radar.2 Select a radar mode.Transmitting Radar SignalsNOTE: As a safety feature, the radar enters standby mode afterit warms up. This gives you an opportunity to verify the areaaround the radar is clear before beginning radar transmission.1 With the chartplotter off, connect your radar as described inthe radar installation instructions.2 Turn on the chartplotter.The radar warms up and a countdown alerts you when theradar is ready.3 Select Radar > Menu > Radar Menu > Change Radar.4 Select a radar mode.A countdown message appears while the radar is starting up.5 Select Menu > Transmit Radar.Adjusting the Radar RangeThe range of the radar signal indicates the length of the pulsedsignal transmitted and received by the radar. As the rangeincreases, the radar transmits longer pulses in order to reachdistant targets. Closer targets, especially rain and waves, alsoreflect the longer pulses, which can add noise to the Radarscreen. Viewing information about longer-range targets can alsodecrease the amount of space available on the Radar screenfor viewing information about shorter-range targets.• Select to decrease the range.• Select to increase the range.Tips for Selecting a Radar Range• Determine what information you need to see on the Radarscreen.For example, do you need information about nearby weatherconditions or targets and traffic, or are you more concernedabout distant weather conditions?• Assess the environmental conditions where the radar isbeing used.16 Radar