Garmin G500 Manual
Have a look at the manual Garmin G500 Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 74 Garmin manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
4-35190-01102-02 Rev. DGarmin G500 Pilot’s Guide ForewordSec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index Symbol Description Flood Severe Thunderstorm Tornado Sunny Part Sun Cloudy Rainy T-Storm Snow Windy Foggy Haze High/Low Temp Table 4-16 Weather Symbols
4-36Garmin G500 Pilot’s Guide190-01102-02 Rev. D
Foreword
Sec 1
System
Sec 2
PFD
Sec 3
MFD
Sec 4
Hazard
Avoidance
Sec 5
Additional Features
Sec 6
Annun.
& Alerts
Sec 7
Symbols
Sec 8
Glossary
Appendix A
Appendix B
Index
4.8.4 Weather Legends
The LEGEND soft key displays a pop-up legend of the currently used weather
products. Pressing the LEGEND soft key again, the MFD knob, the ENT, or
CLR keys will remove the legend.
1) A full page legend can be selected by selecting the Weather Legend option in
the XM Weather Map Menu or pressing the LEGEND soft key on the Weather
Map Page. The legend displayed will match the selected weather products . Turn
the large or small MFD knobs to scroll through the legend, if necessary.
Figure 4-23 Weather Legends
4-37190-01102-02 Rev. DGarmin G500 Pilot’s Guide ForewordSec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index 2) An abbreviated legend may be displayed on the upper right side of a WX Data Link Map page for the applicable weather products when selected in the Page Menu options for Weather. 4.8.5 NEXRAD WSR-88D, or NEXRAD (NEXt-generation RADar), is a network of 158 high- resolution Doppler radar systems that are operated by the National Weather Service (NWS). NEXRAD data provides centralized meteorological information for the continental United States and selected overseas locations. The maximum range of a single NEXRAD radar site is 250 NM. The NEXRAD network provides important information about severe weather for air traffic safety. NEXRAD data is not real-time. The lapsed time between collection, processing, and dissemination of NEXRAD images can be significant and may not reflect the current radar synopsis. Due to the inherent delays and the relative age of the data, it should be used for long-range planning purposes only. Never use NEXRAD data or any radar data to penetrate hazardous weather. Instead, use it in an early-warning capacity of pre-departure and en route evaluation. Figure 4-24 XM Weather - NEXRAD Composite data from all the NEXRAD radar sites in the United States is shown. Canadian Radar provided by Environment Canada. This data is composed of the maximum reflectivity from the individual radar sweeps. The display of the information is color-coded to indicate the weather severity level. All weather
4-38Garmin G500 Pilot’s Guide190-01102-02 Rev. D Foreword Sec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index product legends can be viewed on the Weather Data Link Page. For the NEXRAD legend, select the LEGEND soft key when NEXRAD is selected for display. Figure 4-25 NEXRAD Weather Legend The display of radar coverage is always active when either NEXRAD or ECHO TOPS is selected. Areas where NEXRAD radar coverage and Echo Tops information is not currently available or is not being collected are indicated in grayish-purple. 4.8.5.1 Reflectivity Reflectivity is the amount of transmitted power returned to the radar receiver. Colors on the NEXRAD display directly correlate to the level of detected reflectivity. Reflectivity as it relates to hazardous weather can be very complex. The role of radar is essentially to detect moisture in the atmosphere. Simply put, certain types of weather reflect radar better than others. The intensity of a radar reflection is not necessarily an indication of the weather hazard level. For instance, wet hail returns a strong radar reflection, while dry hail does not. Both wet and dry hail can be extremely hazardous. The different NEXRAD echo intensities are measured in decibels (dB) relative to reflectivity (Z). NEXRAD measures the radar reflectivity ratio, or the energy reflected back to the radar receiver (designated by the letter Z). The value of Z increases as the returned signal strength increases.
4-39190-01102-02 Rev. DGarmin G500 Pilot’s Guide ForewordSec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index 4.8.5.2 NEXRAD Limitations NEXRAD radar images may have certain limitations: • NEXRAD base reflectivity does not provide sufficient information to determine cloud layers or precipitation characteristics. For example, it is not possible to distinguish between wet snow , wet hail, and rain. • NEXRAD base reflectivity is sampled at the minimum antenna elevation angle. An individual NEXRAD site cannot depict high altitude storms at close ranges. It has no information about storms directly over the site. • When zoomed in to a range of 30 NM, each square block on the display represents an area of four square kilometers. The intensity level reflected by each square represents the highest level of NEXRAD data sampled within the area. The following may cause abnormalities in displayed NEXRAD radar images: • Ground clutter • Strobes and spurious radar data • Sun strobes (when the radar antenna points directly at the sun) • Interference from buildings or mountains, which may cause shadows • Metallic dust from military aircraft, which can cause alterations in radar scans
4-40Garmin G500 Pilot’s Guide190-01102-02 Rev. D Foreword Sec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index 4.8.6 Weather Page Map Orientation The Orientation option sets the orientation of the Wx Data Link Map pages. 1) While viewing the Wx Data Link Map 1, 2, or 3 of the Wx page group, press the MENU key. With “Weather Setup” highlighted, press ENT. 2) With the “Map Orientation” option active, turn the small MFD knob to change the highlighted value. Figure 4-26 Weather Page Map Orientation 3) Press ENT to accept the displayed value. The next option will be highlighted. 4) Press the small MFD knob to cancel selection or to end editing and return to the Navigation Map page or turn the large MFD knob to the next option. 4.8.7 NEXRAD Data Viewing Range The NEXRAD Viewing Range option allows you to select the map range where at and below the selected value NEXRAD weather products will be shown on the selected MFD Wx Data Link Map page (1, 2, or 3). When Off is selected, NEXRAD weather data will not be shown. In the figure below where 300 NM is selected, NEXRAD data will be shown at map ranges of 300 NM and lower. Figure 4-27 NEXRAD Viewing Range Selection 1) While viewing a WX Data Link Map page of the WX page group, press the MENU key to display the Page Menu Options. The cursor flashes on the “Weather Setup” option. Press ENT.
4-41190-01102-02 Rev. DGarmin G500 Pilot’s Guide
ForewordSec 1
System Sec 2
PFD Sec 3
MFD Sec 4
Hazard
Avoidance
Sec 5
Additional Features Sec 6
Annun.
& Alerts Sec 7
Symbols Sec 8
Glossary Appendix A Appendix B
Index
2) The NEXRAD Data Viewing Range value will be highlighted. Turn the small
MFD knob to highlight the desired value.
3) Press ENT
to accept the displayed value. The next option will be highlighted.
4) Press the small MFD knob to cancel selection or to end editing and return to
the Navigation Map page or turn the large MFD knob to the next option.
4.8.8 NEXRAD Legend
The NEXRAD Legend selection provides the option of displaying an
abbreviated version of the NEXRAD legend in the top right region of the MFD.
The full legend is available by pressing the LEGEND soft key.
Figure 4-28 NEXRAD Legend Selection
1) While viewing a WX Data Link Map page of the WX page group, press the
MENU key to display the Page
Menu Options. The cursor flashes on the
“Weather Setup” option. Press
ENT.
2) Turn the large MFD knob to highlight the NEXRAD Legend value.
3) Turn the small MFD knob to highlight Off or On. Press ENT
to accept the
displayed value. The next option will be highlighted.
4) Press the small MFD knob to cancel selection or to end editing and return to
the Navigation Map page or turn the large MFD knob to the next option.
4-42Garmin G500 Pilot’s Guide190-01102-02 Rev. D Foreword Sec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index 4.8.9 Echo Tops NOTE: Due to similarities in color schemes, the display of Echo Tops is mutually exclusive with Cloud Tops and NEXRAD. Echo Tops data shows the location, elevation, and direction of the highest radar echo. The highest radar echo does not indicate the top of a storm or clouds; rather it indicates the highest altitude at which precipitation is detected. Information is derived from NEXRAD data. Figure 4-29 XM Weather - Echo Tops The display of radar coverage is always active when either NEXRAD or ECHO TOPS is selected. Areas where NEXRAD radar coverage and Echo Tops information is not currently available or is not being collected are indicated in grayish-purple. Radar capability exists in these areas, but it is not active or is off-line.
4-43190-01102-02 Rev. DGarmin G500 Pilot’s Guide ForewordSec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index Echo Top Data Viewing Range The Echo Top Data Viewing Range option allows you to select the map range where at and below that value Echo Top weather products will be shown on the selected MFD Wx Data Link Map page (1, 2, or 3). When Off is selected, Echo Tops will not be shown. In the figure below where 200 NM is selected, Echo Top data will be shown at map ranges of 200 NM and lower. Figure 4-30 Echo Top Viewing Range Selection 1) While viewing a WX Data Link Map page of the WX page group, press the MENU key to display the Page Menu Options. The cursor flashes on the “Weather Setup” option. Press ENT. 2) Turn the large MFD knob to highlight the Echo Top Data Viewing Range value. 3) Turn the small MFD knob to highlight the desired value. Press ENT to accept the displayed value. The next option will be highlighted. 4) Press the small MFD knob to cancel selection or to end editing and return to the Navigation Map page or turn the large MFD knob to the next option.
4-44Garmin G500 Pilot’s Guide190-01102-02 Rev. D Foreword Sec 1 System Sec 2 PFD Sec 3 MFD Sec 4 Hazard Avoidance Sec 5 Additional Features Sec 6 Annun. & Alerts Sec 7 Symbols Sec 8 Glossary Appendix A Appendix B Index 4.8.10 Cloud Tops NOTE: Due to similarities in color schemes, the display of Cloud Tops is mutually exclusive with Echo Tops and NEXRAD. Cloud Tops data depicts cloud top altitudes as determined from satellite imagery. Figure 4-31 XM Weather - Cloud Tops To display the Cloud Tops legend, select the LEGEND soft key when Cloud Tops is selected for display. Since Cloud Tops and Echo Tops use the same color scaling to represent altitude, display of these weather products is mutually exclusive. When Cloud Tops is activated, Echo Tops or NEXRAD data is not shown.