Is the DJI AVATA HD transmission lower than the DJI FPV?

i tried both in long range .. they are the same

No. Quite the same
Although Avata is based on O3. FPV Combo on O2.

Hi there. Thanks for reaching out. The DJI Avata uses Ocusync 3.0+, and the DJI FPV uses Ocusync 3.0. However, Max Video Transmission Range for these drones is the same (up to 10 km). Should you have further concerns, please reach back here at DJI Forum. Thank you, and have a nice day.

DJI Tony Posted at 2-6 00:16
Hi there. Thanks for reaching out. The DJI Avata uses Ocusync 3.0+, and the DJI FPV uses Ocusync 3.0. However, Max Video Transmission Range for these drones is the same (up to 10 km). Should you have further concerns, please reach back here at DJI Forum. Thank you, and have a nice day.

I thought DJI FPV uses O2. Thanks. Good to know.
So there are pretty the same.

Luca Rubino Posted at 2-6 00:19
I thought DJI FPV uses O2. Thanks. Good to know.
So there are pretty the same.

You are most welcome. Please let is know if you need further assistance. Happy flying!