Anyone aware of any projects to adapt this technology to LEO tracking?
Bill W1PA
FPV and drone ground-station antenna trackers operate by receiving a continuous stream of live GPS location data as a part of the aircraft telemetry downlink. from this, AZ/EL data is computed and the antennas pointed. For satellite tracking, AZ/EL data would have to be computed/predicted as we normally do.
Most of the tracking HARDWARE I've seen are small, use R/C servos and carry usually patch antennas or small axial mode helix antennas. Don't know how these would handle larger antennas like even small yagis.
R/C servos with high-torque output are available, but given that these top-end servos can exceed US$200 per axis, it isn't clear that a design based on these would offer much advantage to (say) a G5500.
On 07/08/2014 01:42 PM, Bill (W1PA) wrote:
Anyone aware of any projects to adapt this technology to LEO tracking?
Bill W1PA
http://www.youtube.com/watch?v=SGQ-tLxafdM
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Hi Bill
funny you mention Myflydream
I am the Mylfydream service point for the Netherlands, I have discussed this with the developer Ming about this. I know the protocol that is used to control the AAT (black box). The AAT is connected to the Driver (blue box) the blue box decodes telemetry data from the plane. then sends a serial command to the AAT to Pan and Tilt in the correction directions. Inside the AAT there is a 6 or a 12ch slipring for endless rotation.. (too keep in mind!) and cannot be limited to a min and max position..
I already wrote a little software some years ago that converts GS-232B protocol to MFD Protocol..
I have to digg up the project.
The thing why I did not continue this project is the endless rotation of the AAT, If i command the AAT to 355 degrees it will choose the shortest direction. So eventually wires will get tangled. ;-)
73 Bjorn - PD5DJ www.pd5dj.nl
Bill (W1PA) schreef op 8-7-2014 19:42:
Anyone aware of any projects to adapt this technology to LEO tracking?
Bill W1PA
participants (3)
-
Bill (W1PA) -
Björn Pasteuning - PD5DJ -
Gus