ADSB Transponder Question

[jliltd]

Originally Posted by breister

Sneaky totalitarian bastages! I had planned on having my echoUAT separately switched, and simply "forget" to turn it on for flights not headed to any of the airspaces otherwise prohibited. Now, I'll have to rig it so that it is removable...

Don't forget that the same situation exists in the USA ADS-B rules. If an aircraft is equipped, the ADS-B equipment must be on and operating at all times the aircraft is operated. No matter the location. Even if on the ground taxing at your large ranch in Montana hundreds of miles from rule airspace, if equipped... it must be on an operating per the rule. Ridiculous, yes. But I wonder where we (and AOPA and EAA) were when they slipped that language into the rule.

[GalinHdz]

Originally Posted by jliltd

Because there is Mexico and then there is Mexico. Unlike the USA, Mexican laws, regs and proclamations are beyond interpretation. I have lived in and around both countries my whole life and my family has had businesses in both countries dating back to the 50's.

So stereo typically biased I won't even begin to answer, especially since your original post wrongly stated:

Originally Posted by jliltd

You will still be good in North America. Mexico won't have ADS-B requirements in our lifetime (I have many Mexican clients, some well connected who scoff at Garmin and FAA stating any kind of ADS-B will be mandated in their country).
Jim

So if you want to fly in Mexico (or just about anywhere else in the world) don't listen to those that have no idea, equip with 1090Mhz.

FWIW: Get away from the US/Mexico border and you will find a much different Mexico than the "news" shows. I have flown in Mexico for years (still do) and I (not just my family) have "lived in and around Mexico "since the 60's.

[Snowflake]

My impression is that Mexico is kind of like Canada, in that it has a large land mass relative to it's population, and fewer airports per capita as well. This may not be accurate, but i'm open to being corrected.

If it is, it would make a lot more sense for Mexico to jump on the Satellite ADS-B bandwagon that Canada and the rest of the world are using. 1090ES based, either with diverse antennas (to explicitly satisfy the US when they visit) or a single sky-pointed antenna and the (not unreasonable) expectation that it will still be strong enough for ground-based towers to pick up as well.

Apart from the cost of re-equipping all of the aircraft that went with UAT (and maybe that it "wasn't invented here"), I wouldn't be surprised to see the FAA switch to satellite-based for 1090 reception at some time in the future.

[BobTurner]

Originally Posted by Snowflake

Apart from the cost of re-equipping all of the aircraft that went with UAT (and maybe that it "wasn't invented here"), I wouldn't be surprised to see the FAA switch to satellite-based for 1090 reception at some time in the future.

I thought the whole US rationale for UAT was the fear of frequency congestion, if a single frequency was used. What will happen if every US aircraft has to access a single geosynchronous satellite on one frequency?

[Lycosaurus]

Originally Posted by BobTurner

I thought the whole US rationale for UAT was the fear of frequency congestion, if a single frequency was used. What will happen if every US aircraft has to access a single geosynchronous satellite on one frequency?

The Aireon payload is on an Iridium NEXT satellite which has a low polar earth orbit. There are 66 (65 according to aireon) operational satellites with 9 spares loafing around.
https://en.wikipedia.org/wiki/Aireon

I still wonder about potential congestion too, but it would not be as bad as having a single GEO satellite.

From Aireon:
https://aireon.com/1090-global/back-...tion-data-set/

Given current analyses of Aireon’s data and payload performance, the future is looking bright. To date, 65 Iridium® NEXT satellites are currently in orbit, each hosting an Aireon payload, with 60 of the 65 operational. Even with just over 90 percent of the constellation complete, the data being received has exceeded expectations, not only in terms of accuracy, but in volume. For instance, after just the first two launches (that’s only 20 payloads in orbit, so less than a third of the constellation) Aireon received over six billion ADS-B position per month. Since then, the volume has increased to over 10 billion position reports per month, with an expected 25 billion reports per month once the constellation is complete.

In addition to the incredible volume received thus far, the next incredible technological observation came with the types of vehicle ADS-B broadcasts detected by the Aireon system. As expected, the team saw position reports from commercial aircraft, business jets and general aviation aircraft. But, when the engineers noticed data from unmanned aerial vehicles (UAVs) and surface vehicles, such as airport maintenance vehicles, helicopters and balloons, the team knew the power of the payloads was incredible. This kind of performance is a testament to the strength of the Aireon system, and is an indicator towards the level of accurate data and reports to come soon with a completed network.

[GalinHdz]

Originally Posted by Snowflake

My impression is that Mexico is kind of like Canada, in that it has a large land mass relative to it's population, and fewer airports per capita as well. This may not be accurate, but i'm open to being corrected.

That is very true, but also applies to the US. In Mexico, Canada and the US there are huge areas where ADS-B will not be required. However, ADS-B will be required in most areas where humans want to fly so I recommend you equip accordingly.

[Snowflake]

Originally Posted by GalinHdz

That is very true, but also applies to the US. In Mexico, Canada and the US there are huge areas where ADS-B will not be required. However, ADS-B will be required in most areas where humans want to fly so I recommend you equip accordingly.

True, but in the US you have something like 10x or 20x the number of airports and pilots compared to Canada, and a much smaller land mass... ergo the cost per capita to cover the country with ADS-B towers is much lower.