How to Install the VTX into the HD FPV Camera Bay

The following instructions will help you install your own digital VTX in the Alta X HD FPV Camera Bay. Instructions below are for the DJI 03 Air Unit & the Walksnail Avatar HD Pro (Dual Antenna).

How to Install Walksnail Avatar HD Pro (Dual Antenna Version)

Parts & Tools Required

Parts

Alta X HD FPV Camera Bay - fan pre-installed with fan cable: JST-SH 2-PIN
Walksnail Video Telemetry Cable: JST-SH 6-pin to JST-SH 6-pin
Install Bolts Kit: Walksnail Avatar HD Pro
Walksnail Avatar HD Pro Kit: Dual Antenna Version

Tools

PH1 Driver
1.5mm Hex Driver (Magnetic Preferred)
Long Nose Pliers
Painters Tape (Optional)

Goals

Install USB Expansion Board
Install Camera: Avatar HD Pro Camera
Install Digital VTX: Avatar V2 Pro Module (Dual Antenna)

Estimated completion time 45 mins - 1 hr.

Step A: Install Walksnail Avatar USB Expansion Board

How to Install the Walksnail USB Expansion Board

Fastening the Board:
- Use the provided M2 x 8mm countersunk screws and M2 nuts.
- Secure the USB expansion board to the roof of the enclosure using a PH1 driver and long nose pliers.
Temporary Placement:
- Use painter's tape to temporarily hold the USB expansion board to the HD FPV Camera Bay while you screw it in.

Step B: Install VTX Module: Avatar V2 Pro (Dual Antenna)

How to Install the Avatar V2 Pro VTX Module (Dual Antenna)

Remove the Cover: Using a 1.5mm hex driver, remove the 2 screws holding down the cover.
Connect Antennas: Connect the supplied antennas to the VTX Module. Reinstall the antenna cover.
Position the VTX Module: Place the VTX Module in the Camera Bay with the antenna connections facing the Brain Bay Access Hole. The Brain Bay Access Hole, located opposite the Fan, leads to the Brain Bay. Insert the VTX Module from the front to ensure that the camera and antennas extend out from the front side of the enclosure.
Screw-in the VTX: Use the provided M2 x 5mm screws to fasten down the VTX Module from the bottom of the enclosure with a PH1 driver. Connect the Walksnail cable from the USB expansion board to the VTX Module.

Step C: How to Install the Walksnail Avatar HD Pro Camera

Attach the Camera to the Camera Bay Front Plate: Use the 4 provided M2 x 4mm cap head bolts to securely fasten the Walksnail Avatar HD Pro Camera to the Camera Bay Front Plate, specifically designed for the Walksnail Avatar Dual Antenna. Caution: Do not over-tighten the bolts. Over-tightening can damage the Front Plate and cause the threaded insert inside the camera to fail.
Install the Avatar Dividing Wall: Carefully install the Avatar Dividing Wall into the enclosure, guiding the antenna and camera cables through the cutouts at the bottom of the divider. Secure the Dividing Wall in place using the provided self-tapping pan head screws. The Dividing Wall helps to direct the Camera Bay fans airflow and actively cool the VTX.

Wiring: Connect the Walksnail Video Telemetry Cable to the VTX Module. This cable will be connected to the Brain Bay later in the installation. Route both the Video Telemetry and Fan Cables through the Brain Bay Access Hole.
Attach the Back Plate to the HD FPV Camera Bay: Clip the HD FPV Camera Back Plate into place to complete this section of the installation. Ensure that the Back Plate is securely connected to the Camera Bay during flight to allow the fan to properly cool the system.

Over-tightening the bolts can damage the Front Plate and cause the threaded insert inside the camera to fail.

Ensure that the Back Plate is securely connected to the Camera Bay during flight to allow the fan to properly cool the system.

Walksnail Users can now continue onto to Installing the HD FPV Camera Bay into the Alta X

How to Install the DJI O3 Air Unit

Parts & Tools Required

Parts

Alta X HD FPV Camera Bay - fan pre-installed with fan cable: JST-SH 2-PIN
DJI 03 Video Telemetry Cable: JST-SH 6-pin to JST-SH 6-pin
Install Bolts Kit: DJI 03
DJI Camera Module for O3 Air Unit
DJI Transmission Module for O3 Air Unit

Tools

PH1 Driver
1.5mm Hex Driver
Long nose pliers
Painters Tape (Optional)

Goals

Install DJI 03 Transmission Module
Install Digital VTX

Estimated completion time 40 - 55 Mins.

Step A: Install the DJI 03 Transmission Module

Remove Existing Bolts: Remove the 4 bolts from the top side of the DJI 03 Transmission Module.
Secure Antenna Cover: Use a piece of painters tape to temporarily hold the antenna cover in place.
Position the DJI 03 Transmission Module: Place the Transmission Module in the enclosure, with the top side facing down and the antenna connections directed towards the Access Hole that leads to the Brain Bay. Insert the Transmission Module from the front of the enclosure to ensure that both the camera and antennas extend out through the front side.
Check Alignment: Ensure that the camera and antennas are properly aligned to extend out through the front of the enclosure.
Fasten the DJI 03 Transmission Module: Use the provided M1.6 x 10mm screws and a PH1 driver to secure the DJI 03 Transmission Module to the bottom of the HD PFV Camera Bay.
Remove Painters Tape: Remove the tape that was temporarily securing the antenna cover.

How to Install DJI Camera Module for O3 Air Unit

Over-tightening these bolts can lead to the threaded insert inside the camera to fail.

How to Install DJI Camera Module for O3 Air Unit:

Attach the Camera to the Camera Bay Front Plate: Use the 4 provided M1.6 x 4mm bolts to securely fasten the DJI Camera Module to the Camera Bay Front Plate, specifically designed for the DJI 03 camera Unit. Caution: Do not over-tighten the bolts. Over-tightening can damage the Front Plate and cause the threaded insert inside the camera to fail.
Install the 03 Air Unit Dividing Wall: Carefully install the 03 Air Unit Dividing Wall into the enclosure, guiding the antenna and camera cables through the cutouts at the bottom of the divider. Secure the Dividing Wall in place using the provided self-tapping pan head screws. The Dividing Wall helps to direct the Camera Bay fans airflow and actively cool the VTX.

Wiring: Connect the provided DJI 03 Video Telemetry Cable to the air unit. This will be connected to the Brain Bay later in the installation. Route the video telemetry and fan cables out through the side hole of the enclosure.
Attach the Back Plate: Clip on the enclosure back plate to complete this section of the installation. Ensure that the Back Plate is securely connected to the Camera Bay during flight to allow the fan to properly cool the system.