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This installation can be performed without disassembling the ALTA X, however, the photo below has the top removed to provide a better picture. Use this photo as a reference for the installation steps below. |
Install RP-SMA extension cables onto RFD. Remove the nut and washer from the threading on the extension cable and set aside. The RFD is installed with the heatsink facing downwards, in this orientation, the extension cables should be installed with 5” on the right, 14” on the left.
The RFD should come with an SBUS cable connected to the module with a 3pin JST connector. Leave this cable connected while installing RFD in drone.
The RFD is mounted using the two holes found in the front corner of the aircraft, near the GNSS receiver. The RFD, with the RP-SMA extensions and SBUS cable installed, can be inserted through the side of the aircraft by removing the side plate under the GNSS receiver. Location of the panel removed for installation is indicated in the left photo below.
Once the RFD is in the aircraft, complete all of the connections before securing the RFD down.
Connect the 6-pin JST serial cable in the aircraft to the available port on the bottom of the RFD enclosure. The aircraft serial cable is indicated in photo above.
Remove the two side panels indicated in the photo below and replace them with the two panels provided in the kit. *This photo shows a completed installation
Run the RP-SMA extensions to the mounting holes in the two replaced side panels. The longer extension runs to the panel under the power connections, and the hole is obstructed by the power cables - the extension cable can installed by going between the wires of two power connectors. Secure each extension cable to the panel with the washer and nut previously removed.
Install the two short 90 degree antennas provided in the kit. Ensure the nut on the RP-SMA threading is tight before installing antennas.
Run the SBUS cable from the RFD to the SBUS connection access compartment. This is located next to the replaced panel under the power connections (indicated in photos above). Remove side panel. In the back of the compartment you will find a small opening with a grommet. The servo connector should be inserted through this opening and into the compartment. This can be done by pulling the grommet out slightly, into the compartment, and then fishing the SBUS cable from inside the drone through the hole in to the compartment, and then through the unsecured grommet. Pull about 50mm of the SBUS cable into the compartment and then re-install the grommet with the now inserted SBUS cable.
Plug the servo connector in the compartment into the SBUS whip from the RFD, photo below. Secure the connection with the servo clip provided.
Bundle the cables into the enclosure and re-install panel, ensure no wires are being crushed while re-installing.
Complete the installation by securing the RFD to the aircraft with the 8mm flathead screws provided.
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