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Hi all
What is the difference between TAWS A and TAWS B?
I have TAWS B installed in the Phenom 100.
However, I also have a TAWS A unlock SD card with me that came with the aircraft.
Before I go messing around and changing things, thought maybe someone here can point out?

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Garmin states about the capabilities: “Class A TAWS offers pilots an increased level of situational awareness by providing alerts such as excessive closure rate, large glide slope deviations, and the potential for terrain impact when the aircraft is not in landing configuration.”

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Garmin states about the capabilities: “Class A TAWS offers pilots an increased level of situational awareness by providing alerts such as excessive closure rate, large glide slope deviations, and the potential for terrain impact when the aircraft is not in landing configuration.”

And you can’t change it without purchasing a TAWS A unlock card plus have an avionics specialist install it.

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And you can’t change it without purchasing a TAWS A unlock card plus have an avionics specialist install it.

(Username Protected),
Do you know if the Garmin subscription for TAWS A is an additional subscription to TAWS B?
Or is it a separate subscription? Trying to get hold of Garmin support but man….one hour wait times on phone..

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(Username Protected),
Do you know if the Garmin subscription for TAWS A is an additional subscription to TAWS B?
Or is it a separate subscription? Trying to get hold of Garmin support but man….one hour wait times on phone..

I don’t recall this being as needing a subscription. It’s a one time “unlock card” to upgrade to the Taws A. It’s much better than TB. You’re best to call an avionics shop instead of Garmin directly as the shop I believe would need to do everything for this. Or call Embraer support center.

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I don’t recall this being as needing a subscription. It’s a one time “unlock card” to upgrade to the Taws A. It’s much better than TB. You’re best to call an avionics shop instead of Garmin directly as the shop I believe would need to do everything for this. Or call Embraer support center.

I have the TAWS A unlock card in my possession.
However, it would be nice to know if the previous owner had already unlocked it.
is there a way to tell if I am already getting the benefit of TAWS A? Something in the utility page?

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I have the TAWS A unlock card in my possession.
However, it would be nice to know if the previous owner had already unlocked it.
is there a way to tell if I am already getting the benefit of TAWS A? Something in the utility page?

Have you tried calling an Embraer service center?

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I have the TAWS A unlock card in my possession.
However, it would be nice to know if the previous owner had already unlocked it.
is there a way to tell if I am already getting the benefit of TAWS A? Something in the utility page?

You can tell which version is enabled by the name of your TAWS map page. When you go to the TAWS map it will be titled either MAP TAWS-A or MAP TAWS-B.

fwiw, another telltale while flying is that TAWS-B gives only a single altitude callout at 500ft. TAWS-A gives callouts at 500-100 and then 40-10 (unless that option is disabled - it's in the pilot profile settings).