Is there a tx used during the flysky handshake?

[PetterJhon]

Hello everyone,,,

I have a cheap little Hubsan X4 that I would like to receive data 'from it'.

When the device is powered and then sync'ed, the receiver beeps indicating synchronization. That mean that quad is tx'ing some packet back to that receiver mobdro.bio/ luckypatcher.tips/ www.kodi.bio/.

I don't need full OSD, I only need an occasional tracer packet from the device for my needs.

Do these cheap little devices come with a hidden tx radio?

If not, what is the smallest/lightest/lowest power way to get a packet back from a drone? Soldering iron and oscilloscope (forklift install) ok.