What is the Weather Radar?
The weather radar is a device that uses radio waves to detect precipitation, clouds, turbulence, and other atmospheric phenomena. The weather radar can display the intensity and location of these phenomena on a screen called the Navigation Display (ND), which is located on the main instrument panel of the cockpit. The weather radar can help pilots avoid flying into severe weather conditions that could damage the aircraft or compromise safety.
How to Set Up the Weather Radar in the PMDG 737 NGX?
Before using the weather radar in the PMDG 737 NGX, you need to make sure that you have a compatible weather engine installed on your computer. A weather engine is a software that generates realistic weather conditions for your flight simulator based on real-world data or user preferences. The PMDG 737 NGX supports only one weather engine: Active Sky. Active Sky is a popular and advanced weather engine that provides dynamic and realistic weather effects for FSX, FSX:SE, and P3D. You can purchase Active Sky from [their website] or from other online stores.
Once you have Active Sky installed and running, you need to configure some settings in both Active Sky and the PMDG 737 NGX to enable the weather radar functionality. Here are the steps to follow:
In Active Sky, go to Options > General Options > Graphics/Performance Options. Make sure that "Enable Cloud Synchronization" and "Enable Cloud Motion Effects" are checked. These options will ensure that Active Sky updates the cloud positions and movements in your flight simulator according to the weather radar data.
In Active Sky, go to Options > General Options > Weather Options. Make sure that "Enable Precipitation Depiction" is checked. This option will ensure that Active Sky displays rain and snow in your flight simulator according to the weather radar data.
In Active Sky, go to Options > General Options > Communication/Network Options. Make sure that "Enable Broadcast Data" is checked. This option will allow Active Sky to send weather data to the PMDG 737 NGX via a network connection.
In the PMDG 737 NGX, load your aircraft and select a panel state (such as Cold & Dark or Short Turn). Then, go to FMC > MENU > PMDG SETUP > OPTIONS > SIMULATION. On page 3/10, make sure that "WX RADAR SOURCE" is set to "ACTIVE SKY". This option will tell the PMDG 737 NGX to use Active Sky as the source of weather radar data.
In the PMDG 737 NGX, go to FMC > MENU > PMDG SETUP > OPTIONS > MODEL. On page 1/3, make sure that "WX RADAR EQUIPPED" is set to "YES". This option will enable the weather radar display on the ND.
In the PMDG 737 NGX, turn on the battery switch and the standby power switch on the overhead panel. Then, turn on both IRS switches to NAV mode. Wait for the IRS alignment process to complete (about 10 minutes). This will initialize the navigation system of the aircraft.
In the PMDG 737 NGX, turn on both EFIS control panels (one for each pilot) by rotating the BRT knobs clockwise. Then, press the WXR button on both EFIS control panels. This will activate the weather radar mode on both NDs.
In the PMDG 737 NGX, adjust the range selector knob on both EFIS control panels to choose a suitable range for displaying the weather radar data on the NDs. The available ranges are from 5 NM to 320 NM. The recommended range is between 40 NM and 80 NM for en route flight, and between 5 NM and 20 NM for approach and landing.
In the PMDG 737 NGX, adjust the tilt selector knob on both EFIS control panels to choose a suitable tilt angle for the weather radar antenna. The tilt angle determines the vertical scan of the weather radar beam, which affects the accuracy and coverage of the weather radar data. The available tilt angles are from -15 to +15. The recommended tilt angle is between -2 and +2 for en route flight, and between -4 and +4 for approach and landing.
In the PMDG 737 NGX, press the TEST button on both EFIS control panels to perform a self-test of the weather radar system. The NDs should display a test pattern with four green arcs and a red cross. If the test is successful, press the TEST button again to exit the test mode.
Congratulations! You have successfully set up the weather radar in the PMDG 737 NGX. You can now use the weather radar to monitor the weather conditions along your flight path and avoid any potential hazards. Remember to update your Active Sky weather before each flight and to adjust your range and tilt settings according to your flight phase and altitude. Happy flying!
How to Interpret the Weather Radar Data on the ND?
The weather radar data on the ND is displayed as a color-coded map that shows the intensity and location of precipitation, clouds, turbulence, and other atmospheric phenomena. The color scale ranges from green to yellow to red to magenta, indicating increasing levels of intensity. The color scale is shown on the bottom right corner of the ND. The weather radar data is overlaid on the navigation data, such as waypoints, airways, airports, and terrain. The weather radar data is updated every 4 seconds by Active Sky.
The weather radar data can help pilots identify and avoid hazardous weather conditions, such as thunderstorms, heavy rain, hail, icing, and wind shear. However, the weather radar data is not always accurate or complete, and it has some limitations and drawbacks that pilots need to be aware of. Here are some tips and cautions for interpreting the weather radar data on the ND:
The weather radar can only detect precipitation and clouds that reflect radio waves. It cannot detect clear air turbulence (CAT), fog, dust, smoke, or volcanic ash. Therefore, pilots should not rely solely on the weather radar to avoid turbulence or low visibility conditions.
The weather radar can only scan a limited area in front of the aircraft. It cannot scan behind or above the aircraft, or beyond the horizon. Therefore, pilots should not assume that the weather radar shows the complete picture of the weather situation around them.
The weather radar can be affected by attenuation, which is the weakening of the radio waves as they pass through dense precipitation or clouds. Attenuation can cause the weather radar to underestimate or miss the intensity of precipitation or clouds behind the attenuated area. Therefore, pilots should not assume that a green or clear area on the ND means that there is no significant weather behind it.
The weather radar can be affected by ground clutter, which is the reflection of radio waves from the ground or other objects. Ground clutter can cause false or misleading echoes on the ND, especially at low altitudes or near airports. Therefore, pilots should use caution when interpreting the weather radar data near the ground or near airports.
The weather radar can be affected by interference, which is the distortion of radio waves by other sources of radio waves, such as other aircraft or radio stations. Interference can cause noise or spikes on the ND, which can obscure or confuse the weather radar data. Therefore, pilots should use common sense and cross-check with other sources of information when interpreting the weather radar data.
In summary, the weather radar in the PMDG 737 NGX is a useful feature that can help pilots avoid hazardous weather conditions and plan their flight accordingly. However, the weather radar in the PMDG 737 NGX is not perfect and has some limitations and drawbacks that pilots need to be aware of. Therefore, pilots should use the weather radar in conjunction with other sources of information and their own judgment when making decisions about their flight.
How to Use the Weather Radar Data to Avoid Hazardous Weather Conditions?
The weather radar data can help pilots avoid hazardous weather conditions by providing them with information about the intensity and location of precipitation, clouds, turbulence, and other atmospheric phenomena. However, the weather radar data is not enough to ensure a safe and smooth flight. Pilots also need to use their own judgment, experience, and knowledge to make decisions about their flight plan, route, altitude, speed, and maneuvers. Here are some general guidelines for using the weather radar data to avoid hazardous weather conditions:
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Before each flight, pilots should obtain a weather briefing from a reliable source, such as Active Sky or a meteorological service. The weather briefing should include information about the current and forecasted weather conditions along the planned route and at the departure and destination airports. The weather briefing should also include any weather advisories, warnings, or alerts that could affect the flight.
During the flight, pilots should monitor the weather radar data on the ND regularly and compare it with the weather briefing and other sources of information, such as ATC, other pilots, or satellite images. Pilots should also update their Active Sky weather periodically to ensure that they have the latest weather data available.
If the weather radar data shows any signs of hazardous weather conditions, such as thunderstorms, heavy rain, hail, icing, or wind shear, pilots should avoid flying into or near them. Pilots should use their range and tilt settings to scan the weather radar data at different distances and altitudes to identify the best course of action.
If possible, pilots should request a deviation from their planned route or altitude to avoid hazardous weather conditions. Pilots should communicate with ATC and other pilots to coordinate their deviation and obtain clearance. Pilots should also inform their passengers and crew about the reason and duration of the deviation.
If a deviation is not possible or feasible, pilots should prepare for flying through hazardous weather conditions. Pilots should follow the standard operating procedures (SOPs) of their airline and aircraft for dealing with adverse weather situations. Pilots should also use their cockpit instruments and systems, such as the autopilot, autothrottle, anti-ice, and terrain awareness and warning system (TAWS), to assist them in flying safely and efficiently.
After flying through hazardous weather conditions, pilots should check their aircraft for any damage or malfunction. Pilots should also report any incidents or anomalies to ATC and their airline. Pilots should also document any lessons learned or feedback from their experience for future reference.
In conclusion, the weather radar in the PMDG 737 NGX is a useful feature that can help pilots avoid hazardous weather conditions and plan their flight accordingly. However, the weather radar in the PMDG 737 NGX is not perfect and has some limitations and drawbacks that pilots need to be aware of. Therefore, pilots should use the weather radar in conjunction with other sources of information and their own judgment when making decisions about their flight.
How to Troubleshoot the Weather Radar in the PMDG 737 NGX?
Sometimes, the weather radar in the PMDG 737 NGX may not work as expected or may encounter some problems. For example, the weather radar may not display any data, may display incorrect or outdated data, may display false or misleading echoes, or may display an error message. In this section, we will explain how to troubleshoot the weather radar in the PMDG 737 NGX and how to fix some common issues.
No Weather Radar Data on the ND
If the weather radar does not display any data on the ND, it could be due to one of the following reasons:
The weather radar is not turned on or activated. To fix this, make sure that the WXR button on both EFIS control panels is pressed and that the WX RADAR EQUIPPED option in the FMC is set to YES.
The weather radar source is not set to Active Sky. To fix this, make sure that the WX RADAR SOURCE option in the FMC is set to ACTIVE SKY and that Active Sky is running and connected to your flight simulator.
The weather radar range is too high or too low. To fix this, adjust the range selector knob on both EFIS control panels to choose a suitable range for displaying the weather radar data on the NDs. The available ranges are from 5 NM to 320 NM. The recommended range is between 40 NM and 80 NM for en route flight, and between 5 NM and 20 NM for approach and landing.
The weather radar tilt is too high or too low. To fix this, adjust the tilt selector knob on both EFIS control panels to choose a suitable tilt angle for the weather radar antenna. The tilt angle determines the vertical scan of the weather radar beam, which affects the accuracy and coverage of the weather radar data. The available tilt angles are from -15 to +15. The recommended tilt angle is between -2 and +2 for en route flight, and between -4 and +4 for approach and landing.
The weather conditions are clear or calm. To fix this, check your Active Sky weather or other sources of information to confirm if there is any precipitation, clouds, turbulence, or other atmospheric phenomena along your flight path. If there is none, then the weather radar will not display any data on the ND.
Incorrect or Outdated Weather Radar Data on the ND
If the weather radar displays incorrect or outdated data on the ND, it could be due to one of the following reasons:
The Active Sky weather is not updated or synchronized. To fix this, make sure that you update your Active Sky weather before each flight and periodically during your flight. You can update your Active Sky weather by clicking on the Update button on the Active Sky main window or by pressing a keyboard shortcut (such as Ctrl+F5). You can also enable automatic updates by checking the Auto Update option in Active Sky. Additionally, make sure that you enable cloud synchronization and cloud motion effects in Active Sky to ensure that Active Sky updates the cloud positions and movements in your flight simulator according to the weather radar data.
The IRS alignment is not completed or lost. To fix this, make sure that you turn on both IRS switches to NAV mode before each flight and wait for the IRS alignment process to complete (about 10 minutes). You can check the IRS alignment status by looking at the ALIGN light on both IRS switches or by looking at the IRS page on the FMC. If you lose IRS alignment during your flight (due to a power failure or a system malfunction), you can try to re-align your IRS by turning both IRS switches to OFF and then back to NAV mode. However, this may take longer than usual and may affect your navigation accuracy.
The weather radar system is malfunctioning or damaged. To fix this, you can try to reset or repair your weather radar system by following these steps:
Turn off both EFIS control panels by rotating the BRT knobs counterclockwise.
Turn off both IRS switches by pressing them down.
Turn off both generators by pressing them down.
Turn off both engine start switches by pressing them down.
Turn off both fuel control switches by pressing them down.
Turn off both engine fire switches by pulling them out.
Turn off both battery switches by pressing them down.
Wait for a few seconds.
Turn on both battery switches by pressing them up.
Turn on both engine fire switches by pushing them in.
Turn on both fuel control switches by pressing them up.
Turn on both engine start switches by pressing them up.
Turn on both generators by pressing them up.
Turn on both IRS switches by pressing them up.
Turn on both EFIS control panels by rotating the BRT knobs clockwise.
Wait for the IRS alignment process to complete (about 10 minutes).
Press the WXR button on both EFIS control panels.
Adjust the range and tilt settings on both EFIS control panels.
False or Misleading Echoes on the ND
If the weather radar displays false or misleading echoes on the ND, it could be due to one of the following reasons:
The weather radar is affected by attenuation, which is the weakening of the radio waves as they pass through dense precipitation or clouds. Attenuation can cause the weather radar to underestimate or miss the intensity of precipitation or clouds behind the attenuated area. To fix this, you can try to increase your range or tilt settings to scan a wider or higher area and look for any signs of attenuation, such as a sharp drop in echo intensity or a dark area behind a bright echo. You can also cross-check with other sources of information, such as Active Sky or ATC, to confirm if there is any significant weather behind the attenuated area.
The weather radar is affected by ground clutter, which is the reflection of radio waves from the ground or other objects. Ground clutter can cause false or misleading echoes on the ND, especially at low altitudes or near airports. To fix this, you can try to decrease your range or tilt settings to scan a narrower or lower area and look for any signs of ground clutter, such as a circular pattern of echoes around your aircraft or a random pattern of echoes near the ground. You can also cross-check with other sources of information, such as Active Sky or ATC, to confirm if there is any significant weather near the ground or near airports.