Flight radar 24 question

[flying dog]

When using, does it show the ACTUAL altitude or standard altitude that needs adjusting for the local QNH?

[Kiwi]

They use 1013.

 

[flying dog]

OK, so the question behind me asking.

 

AFAICR the minimum altitude is 100 AGL unless landing.

 

There are exceptions, but.....

 

A mate lives somewhere and he claims small jets fly over his place lower than .......

Well, he doesn't know the rules.

In the greater Sydney area - just for clarity.

 

I suggested he gets/uses Flight radar 24 to see who they are and at what altitude they are at.

I did mention that he may not see their ACTUAL altitude for the day's QNH but for the standard QNH.

 

But I guess if the plane says 500 feet over where he is: there will be questions asked of the pilot.

(Take screen shot and send it to the plane people.)

 

Edited July 12 by flying dog

[facthunter]

Below 10,000 feet you use an accurate QNH or all your vertical separation  minimums etc, would be in error.  Nev

[Kiwi]

That is why Ozrunways uses + or - feet on their traffic. It is based on GPS height, it doesn't actually tell you their hight, only the difference between you and them.

[facthunter]

Accurate GPS height would be fine. Whatever is used, vertical separation must be based on the same data. Nev

[BurnieM]

20 hours ago, Kiwi said:

That is why Ozrunways uses + or - feet on their traffic. It is based on GPS height, it doesn't actually tell you their hight, only the difference between you and them.

 

My understanding is all ADS-B receivers use GPS height to give you plus or minus your own ship.