Antenna Holder for Pavo20
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Antenna holders for extended range BetaFPV Pavo20.
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- Creative Commons — Attribution
I was not satisfied with the range of my Pavo20 Pro 4S drone. I decided to upgrade the ELRS receiver to a RadioMaster XR4 dual band (GeminiX) diversity receiver.
I attach the receiver PCB to the back rear of the O4 camera. The antenna wire is barely long enough to from the read mount to the connector on the PCB.
There are two different models in this set. One model is for the front front of the drone and the second is in for the rear of the drone. The rear mount includes a notch which corresponds to a notch in the rear of the latest version (in September of 2026) of the Pavo20 frame. The wire on the rear antenna isn't long enough to reach the PCB location without having the wire pass through this notch. It may be necessary to cut notch into older frames.
Besides the two resistors mentioned on the BetaFPV website, the 4S board has an additional resister which needs to be removed. I've included an image showing where this third resistor is found.
To mount the antenna holders to the drone, I used 2M VHB tape. One of the photos shows this tape attached to a print with the red film still attached.
To mount the receiver PCB to the drone, I first connected the antennas to their mounting locations and then positioned the antenna wires on the frame. Once the wires were routed as intended, I then connected the antennas using the IPEX connectors. The receiver PCB is positioned so the IPEX connectors are on top (relative to the drone). The PCB is positioned so the IPEX connectors are closest to the rear of the drone. The UART and power connections are edge closest to the front of the drone.
Once the antennas are connected to the PCB, I use several pieces of foam tape to secure the PCB to the bottom of the O4 camera. I also use loop some Kapton tape around the PCB and O4 camera. I use two loops of Kapton tape. One in front of the O4 camera's mounting screws and one loop behind these screws.
I found positioning the receiver PCB to be one of the hardest parts of this modification. I didn't want the PCB bump against the frame when the O4 camera experienced vibrations.
With this modification, the drone's range is limited by the O4's video transmission. I'm able to fly significantly father away after this mod than prior to making this change.