Overview
The EWRF 5.8GHz 56CH UVC OTG Audio FPV Receiver is a wired OTG receiver for Android mobile phones, designed to display 5.8G analog FPV video through compatible UVC camera apps. It supports 56 channels, button tuning, and automatic channel search, and can also provide AV output via a 1.27mm 4-pin interface.
Key Features
- 5.8GHz / 56CH receiver
- UVC OTG wired connection for Android phones that support OTG
- Video resolution: 720P; 720*480/30Fps (720*480px)
- Button control: short press to switch channels (1-8) and bands (A-R); long press for automatic frequency/channel search
- SMA internal pin antenna connector (RP-SMA antenna included)
- Supports external display via AV output (1.27mm 4-pin interface)
- AV cable pin functions: White = audio output, Yellow = video output, Red = 5V, Black = GND
- App notes: receiver updated; do not use “FUAV” app. Search apps: PocketFPV / GoFPV / usb otg camera. Suggested apps: CameraFi / FPViewer / USB Web Camera
Specifications
| Brand | EWRF |
| Model | 5.8GHz 56CH UVC OTG Audio FPV Receiver |
| Operating Frequency | 5.8GHz |
| Operating Channels | 56CH |
| Video Resolution | 720P; 720*480/30Fps (720*480px) |
| Dimensions | 52*23*9mm |
| Weight | 20g (including antenna) |
| Interface | SMA internal pin antenna connector |
| Frequency Tuning Method | Button adjustment |
| Scanning Method | Fully automatic |
| Connection Method | Wired connection |
| Mobile App | USB camera, Pocket app |
Channel / Frequency Table (EWRF Mobile Phone OTG Receiver)
| PR | CH1 | CH2 | CH3 | CH4 | CH5 | CH6 | CH7 | CH8 |
|---|---|---|---|---|---|---|---|---|
| A | 5865M | 5845M | 5825M | 5805M | 5785M | 5765M | 5745M | 5725M |
| B | 5733M | 5752M | 5771M | 5790M | 5809M | 5828M | 5847M | 5866M |
| C | 5705M | 5685M | 5665M | 5645M | 5885M | 5905M | 5925M | 5945M |
| D | 5740M | 5760M | 5780M | 5800M | 5820M | 5840M | 5860M | 5880M |
| E | 5362M | 5399M | 5436M | 5473M | 5510M | 5547M | 5584M | 5621M |
| R | 5658M | 5695M | 5732M | 5769M | 5806M | 5843M | 5880M | 5917M |
| L | 4990M | 5020M | 5050M | 5080M | 5110M | 5140M | 5170M | 5200M |
Device / App Requirements
- Android phone
- Phone supports OTG function
- Qualcomm full range of CPUs can support
- Kirin 950 CPU and higher
- MediaTek X20 CPU and higher
- Apple phone is not supported
What’s Included
- 1 x 5.8GHz OTG Receiver
- 1 x RP-SMA Antenna
- 1 x Micro-USB to Micro-USB cable
- 1 x Micro-USB to Type-C cable
- 1 x 1.27mm 4-pin AV cable
Applications
- 5.8GHz analog FPV video viewing on compatible Android phones (UVC OTG)
- External monitor connection via AV output (monitor switches to AV mode)
For setup help and compatibility questions, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

View 5.8GHz analog FPV video on an OTG-enabled Android phone using a UVC camera app.

Button tuning supports quick channel and band changes, plus a long-press auto scan to lock onto a signal.


Two OTG cables are included to connect either USB-C or Micro‑USB Android phones.

Use the 1.27mm 4‑pin AV output to feed video (and audio) to an external screen when needed.


Compatible apps can display standard FPV view or a split-screen VR layout for goggles.

Avoid the FUAV app; try PocketFPV, GoFPV, or common USB OTG camera/UVC viewer apps instead.


An OTG-capable Android phone is required; iPhone isn’t supported for UVC OTG viewing.

Everything needed for phone viewing and AV-out testing is in the box, including the 4‑pin AV lead.


A short OTG lead keeps the receiver close to the phone for a tidy, low-drag setup.
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