DJI Digital FPV Antenna Tracker

thingiverse

Hello world! Here is the portable antenna tracker system designed for the DJI Digital FPV Goggles. With this contraption added to your DJI Digital Goggles, you have an automated tracking antenna system. What it does, is to point all 4 antennas that receive the digital video from the DJI Digital Air Unit (or Caddx Vista), continuously at your drone. No more guesswork and always worrying that your head is not turned to the optimal position, to point your directional antennas (eg: iFlight Crystal or Lumenier AXII HD patches) at your drone when you are flying in FPV on your DJI digital FPV system. All parts listed here are only for this tracker system and will not work with other antenna tracker systems. Note that there is a tripod version STL included if you prefer to use this tracker mounted on a tripod. Refer to the build and demo video to see how this works in the real world. :) Parts required to complete the tracker are listed below. Antenna Tracker Board (Brain of the system) ———————————————————— https://www.ebay.com/itm/174777297460 Turntable’s Drive-Wheel ——————————— One 9grams servo (plastic gear type for ease of removing stop stub): https://shopee.sg/product/161750523/6359520075?smtt=0.134312007-1619530203.3 One Tamiya Mini 4WD Wheel(low height type): https://shopee.sg/product/301743565/5556181642?smtt=0.134312007-1619529027.3 M2x16mm screws for attaching wheel to servo and for mounting servo and antenna holder to turntable (PCB): https://shopee.sg/product/258528855/4034415420?smtt=0.134312007-1619529574.3 M2 nuts for mounting servo and antenna holder to turntable (PCB): https://shopee.sg/product/272923276/4538571582?smtt=0.134312007-1619620166.3 Two 5mmOD 2mmID Bearings to prevent screw head from damaging travel end stops: https://shopee.sg/product/234502161/9811028595?smtt=0.134312007-1619529983.3 Turntable’s Idle Wheels ——————————— 2x Mount for rollers: to be 3D-printed Two 14mm Tamiya Mini 4WD rollers: https://shopee.sg/product/265051052/5535866456?smtt=0.134312007-1619529411.3 Turntable’s Pivot ———————— One M4x20mm screw as pivot shaft: https://shopee.sg/product/140735814/7805643850?smtt=0.134312007-1619525087.3 Two 10mmOD 4mmID bearings for M4 screw to fit the Aluminum Hub of Turntable’s Base: https://shopee.sg/product/304071003/7054834073?smtt=0.134312007-1619524794.3 One M4 Nut for locking the 10x4 bearings: https://shopee.sg/product/272923276/4538571582?smtt=0.134312007-1619524914.3 Turntable’s Base ———————— 1x Base for DJI Digital FPV Goggles: to be 3D-printed Or 1x Base for Tripod: to be 3D-printed 1x Aluminum Hub with grub screws for locking 10x4 bearings of pivot shaft (Round, 10mm): https://www.aliexpress.com/item/4000088608614.html Four 16mm M3 Nylon Screws for attaching Alu Hub to Base: https://shopee.sg/product/290986653/4545692283?smtt=0.134312007-1619524626.3 Four M3 Nylon Nuts for attaching Alu Hub to Base: https://shopee.sg/product/290986653/6653715879?smtt=0.134312007-1619524701.3 2x One-way bearing (HF0612) for Drive Wheel to idle at the 2 travel-end positions: https://shopee.sg/product/186234213/3627751688?smtt=0.134312007-1619540227.3 Two M6x20 screws for attaching one-way bearings (HF0612): https://www.aliexpress.com/item/4000208301212.html RSSI Pickup Essentials ——————————— 1x 5.8ghz Video Receiver with 2 modules: https://www.aliexpress.com/item/4000309868037.html 6x TBS patches (LHCP), 4 for the DJI Digital FPV Goggles and 2 for RSSI-pickup: https://www.team-blacksheep.com/products/prod:tbs5g8_lhpatch_sma Two L-shape SMA adapters https://shopee.sg/product/329888544/8206053252?smtt=0.134312007-1619619262.3 Two 45degree SMA adapters (combined with the L-shape adapters above) to mount the two RSSI-pickup patches at 90degrees apart: https://www.aliexpress.com/i/32954066891.html 2x “RP-SMA to RP-SMA” RG174 50cm (cut each in half to make 4 pigtails for connecting 4 patches to the DJI Digital FPV Goggles) https://www.aliexpress.com/item/1005001459408331.html 4x SMA-female(female pin) plugs for (solder these to the cut-ends of the pigtails above): https://www.aliexpress.com/i/32449137109.html 3D printed files for Servo Mount, Patch Antennas Mount, Turntable’s Base, Turntable’s Travel-stops, Idle-rollers Mount: Available here on thingiverse Tutorial Video: https://www.youtube.com/watch?v=BSdV2x1uV_E