MyFlyDream Crossbow AAT, Руководство пользователя

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VBI stands for "
vertical blanking interval". It's a term of the analog video signal technology.
Many MFD products use VBI to carry flying information from the plane to the tracker.
The advantage of VBI is that you don't need an extra dataradio if you already have a video TX
and RX. These MFD products will encode the necessary data on your analog video signal
(usually comes from an onboard camera). Your VideoTX emits it. Once your Video Receiver
receives the video signal, and feeds the signal to a MFD tracker, the tracker will extra tracking
data from the analog video signal and use the data to track.
Early MFD AP / TeleFlyPro support our VBI protocol V1.
Our Crossbow supports V1. (Menu "VBIVersion=>V1")
Later MFD Crosshair / TeleFlyTiny support V1 and V2.
V2 works better in long range.
To use VBI for the tracker, please setup your plane correctly. Make sure your video RX outputs
clear videos (check with an AV monitor) . Feed the signal to
PIN#2 of the upper socket (of course
you need a common Ground wire between your VideoRX and the tracker).
Note that you need to make sure the plane side and the tracker are using the same VBI version.
If the tracker decodes information from the video signal successfully, the main screen will display
like"VLink:90%".
2.
DataRadio (MAVLink):
With a pair of DataRadio you can send data from the plane to your tracker. There are many
protocol can be use to establish a downlink, private ones, and open ones. MAVLink is one of the
most popular ones. It's not perfect but it's common. Many autopilots support it, including MFD
Crosshair AP.
If you use a Pixhawk/ArduPilot device, I assume you already connect your DataRadios and they
are working well. Now we are going to integrate the MFD Crossbow AAT to your system.
The DataRadio device can be mounted to the tracker and rotates together with the tracker. In
this case the tracker still has the ability to rotate continuously without any limitation.