What is a RADIO ALTIMETER? | How it Functions | Advantages & Disadvantages of RA | Aviation Notes

In this video we look one of the important systems in an Aircraft: The Radio Altimeter. We look at the principle of operation, the components required for an RA; and the Advantages and Disadvantage of an RA.
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[@vittoriafiorentini8276]

Amazing video. Love ❤️ u. Make more videos please

[@JxJAVIATION]

Thank You! I will

[@samerbabikir8946]

Many thanks, I do relly like you explaination.

[@JxJAVIATION]

Glad to hear that! Keep Watching! Cheers!!

[@minhazkhan1241]

very informative. thanks

[@JxJAVIATION]

Glad it was helpful!

[@Pilot.sakshi]

Your voice is so perfect and good that even some hard topics can be easily understood and learned from your videos!!! ❤️
Thank u so much for your great videos, Waiting for more such knowledgeable videos in the Future👍👍

[@JxJAVIATION]

Thank you so much! This is the best Comment/Compliment I have received. Made my day!

[@cansuh2803]

Amazinggg

[@JxJAVIATION]

Thank you! Check out my other videos as well!

[@MuhammadBaqar72]

Very nice

[@JxJAVIATION]

Thank you and Welcome! Do check out my other videos as well!

[@bahur1187]

Thanks indeed.

[@JxJAVIATION]

Very welcome

[@josephamalsabu]

Good job ❤️

[@JxJAVIATION]

Thanks :)

[@amineffff6305]

love your video 3mins full of knowledge , just quick question , why the distance= 2xheight ?

[@JxJAVIATION]

Thank you! 2xHeight because the radio waves travel towards the ground (1xH) and are reflected towards the aircraft (another H)!

[@parthabora6515]

Very nice video and informative. What is 1410 is showing in the RA system, which is circled?

[@JxJAVIATION]

Its the RA height information from the RA computer

[@drseven1275]

Niceeee

[@JxJAVIATION]

Thanks 🤗

[@drseven1275]

@@JxJAVIATION i have to watch all your Videos soon. Many Thanks for the great content 👍👍👍

[@JxJAVIATION]

@@drseven1275 Please Do Watch and Share!

[@rileyraiyee5428]

Please would you mind to upload a video of METARS ?

[@JxJAVIATION]

I will note it!

[@syafiepie9815]

plus maximum distance is 2500ft

[@JxJAVIATION]

Oh yes! Thank You!

[@acilacil83]

error of operation in radio altimeter?

[@JxJAVIATION]

There could be a system fault or obstructions to the radio waves causing error in the readings.

[@Chinmaya93]

Isn't what you explained a Radar altimeter and not a radio altimeter?

[@JxJAVIATION]

I think we are referring to the same system!

[@Chinmaya93]

@@JxJAVIATION there's a difference actually, radar altimeter uses the echo principle, just like a normal radar. Radio altimeter uses FMCW, continuous wave, the principle is that rate of change of frequency is constant while flying at a constant height. Transmitted Frequency is varied between 4.2-4.4 Ghz and the reflected signal is at a different frequency than the transmitted one, and since the rate of change of frequency is constant, the difference is proportional to the time taken.
Change of freq= Rate of change of freq X time taken.
The frequency difference is measured and the time obtained is registered on the indicator as height.
Just sharing, as a well wisher, do let me know if this doesn't sound right