Learn about ADS-B

hello fellow aviators this is Vince Riley CFI double I fixed wing and rotor Wing thanks for joining me for this quick intro to adsb or automatic dependent surveillance broadcast if you like these videos make sure you give it a thumbs up and subscribe so you'll be notified when new videos are released so first we need to answer the question why why did the FAA decide to go with adsby well the first major answer is to modernize Air Traffic Control Systems to be able to more accurately monitor the increase in air traffic also one of the major limitations of traditional radar system is that they were line of sight this meant at a high enough altitude the radar system could pick you up however if you were lower in altitude it would be easy for ground clutter or terrain features to block radar providing location services to ATC on the fa's website you can read the ads via's real-time Precision shared situational awareness and advanced applications for pilots and controllers what does that mean for us well without getting too technical we'll avoid all the electrical witchcraft which happens during Communications between all the ground systems in a nutshell ground stations communicate directly with aircraft while aircraft can communicate with each other the information transmitted and received by adsbee includes tail number aircraft type GPS enhanced ground speed direction altitude route and all of this information is reported every second whereas traditional radar only provides a fraction of this information and is only transmitted every 5 to 12 seconds the older radar systems provided a great service but were often hampered by obscurations or terrain While most of the traditional ground-based systems are being phased out some still exist and are integrated into the adsby network the new adsbee system covers the United States and other areas almost completely with very few limitations concerning altitude or ground clutter the only limitation at this time is the lack of towers which may cause limited coverage in areas surrounded by mountains but we'll discuss that later right now there are two systems installed on aircraft one is the uat or universal access transmitter which operates at 978 megahertz when aircraft are using 978 megahertz they can continually update and Report their position to not only the ground stations but also to other aircraft using the same 978 megahertz system the other adsby system that can be installed in aircraft especially for those flying in class air space above 18 000 feet are required to have the 1090 megahertz extended squitter system sometimes aircraft will have different systems installed and normally would not be able to share their positions with each other however a uat equipped aircraft can broadcast its position to ground Towers the ground Towers in turn using adds r or the rebroadcast system will rebroadcast that information to other aircraft on both systems additionally tisbee or Traffic Information Services broadcast Blends the traditional radar system targets into the adsby system to be rebroadcasted for all users fisbee or flight information Services broadcast is another enhancement that comes with the adsbee system frisbee provides adsby in equipped aircraft with a suite of advisory aeronautical and weather information product to enhance the user's situational awareness vis-b information transmitted to your adsbn system can display sigmets air mats weather radar and forecasts just to name a few of course to see all of this information you'll need something to be able to display the information from your ads be in device for example if you have a Stratus 3 system traffic can be displayed on your iPad through foreflight as well as the other services available the FAA has done a great job describing the adsbee system I'll put a link in the video description below a great feature of the links in the website allows you to see a demonstration of adsby coverage at different altitudes if you download the free Google Earth Pro on your computer you can click the link on the FAA website download the file and it'll open in Google Earth Pro once opened you can select different altitudes to see coverage areas as you can see from the 500 AGL map there are quite a few areas that still need Towers to be installed to enhance coverage so like all electronic systems it does have a few areas that are not covered for example valleys surrounded by very large mountains but this will be resolved when additional Towers will be installed as air traffic density increases but remember even in the absence of towers aircraft will be able to communicate with each other to provide accurate location and direction information one of the coolest enhancements in my opinion is the fact that now ground controllers can see you from the moment you start moving on the airport in the old days you were told not to turn on your transponder until right before takeoff now anytime you're operating your transponder should be in altitude mode and transmitting with the exception of if you're working in your Hangar or around the hanger area and there's no intent to fly requirements for adsby can be found in section 91225 you should take some time to familiarize yourself with the requirements for ads B and as usual there's an exception for aircraft that don't have electrical systems as long as the aircraft remains outside of Class B or Class C airspace areas and maintains an altitude below 10 000 feet so where do you need ads be far 91.225 States within Class B airspace areas and within 30 nautical miles of an airport listed in appendix D you need it above the ceiling it will end within lateral boundaries of Class B or Class C so you can't go over Class B or Class C airspace you need adsby equipment aircraft to fly and Class E airspace above 10 000 feet MSL unless you're at an altitude of 2500 feet AGL or below and of course classy airspace above 3000 feet MSL over the Gulf of Mexico from the coastline of the United States out to 12 nautical miles blah blah blah this is all fine and dandy you're the best place to review these requirements is to visit the faa's decision flow chart I'll put a link also in the description below in my opinion I think this is a great resource from the FAA so let's review you need ads be in class A airspace and that's the 1090 megahertz es version you need 978 megahertz uat version and classy airspace above 10 000 feet MSL except for when 2500 feet AGL in class B airspace in Class C airspace which includes all of the lateral boundaries of Class C up to 10 000 feet but not below the lateral boundaries this also applies to class B airspace but don't forget the 30 nautical mile ring adsb is required anywhere inside from the ground up to 10 000 feet when you're inside the 30 nautical mile range it is not needed in surface Class E airspace or in class D airspace here again the FAA has another great resource you can download this picture at a link provided in the description below the video now let's do some quick practical exercises if you're flying just north of Atlanta right here at 1500 feet AGL do you need adsby first what type of airspace are you in correct Class E if you're in class E below 10 000 feet or below 2500 feet AGL it's not required How about if you're here at 3200 feet MSL the floor of Class B airspace is seven thousand feet which airspace are you in correct Class E remember you're inside the 30 nautical mile ring so as ads be required yes How about if you're right here at 500 feet AGL inside the 30 nautical mile ring but outside of Class B airspace which airspace are you in correct class G is ADS B required yes again because of the 30 nautical mile ring now let's zoom on over to El Paso Texas if you're flying right here at 5100 feet MSL which class of airspace are you in correct Class E because you're below the class C Shelf his ads be required no How about if you're right here at 11 000 feet MSL above the top of Class C airspace which airspace are you in correct Class E airspace is ADS be required yes you are above 10 000 feet and also above 2500 feet AGL my friends thanks for watching make sure you smash that like button and subscribe so you'll get notifications when I make a new video it takes a lot to produce these videos if you'd like to contribute a couple bucks to help produce the next video hit that link down below and then let me know in the comments below what you'd like to see next remember keep the dirty side down foreign

Channel: Loves2Fly

Views: 3,644

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Id: Fn6CiUoqLGI

Length: 10min 18sec (618 seconds)

Published: Mon Jul 31 2023