Caddx Walksnail Ascent VRX Transmitter

Order the Walksnail Ascent VRX digital video receiver for clear HD images and stable communication with your FPV drone

The CADDX Walksnail Ascent VRX transmitter is a compact and lightweight module designed to receive a signal from the Walksnail Ascent digital HD system. The device is equipped with an HDMI output, which allows you to connect it to any FPV goggles, monitors and even TVs. Ascent VRX provides significantly cleaner and more stable images than analog systems, making it an excellent choice for new pilots and hobbyists who want to make the transition to digital video without breaking the bank.

5 main advantages

• Crisp HD video up to 1080p at 60fps.
• Ultra-low latency of just 35ms for instant control response.
• Stable transmission range up to 6 kilometers with two LHCP antennas.
• HDMI output for connecting to any FPV goggles, monitors and TVs.
• Built-in microSD card slot up to 256 GB for video recording in MP4 (H.264) format.

How the Walksnail Ascent VRX digital video receiver works

The receiver picks up a digital radio signal from the video transmitter (VTX) of the Ascent system in the range of 5.725–5.829 GHz. It decodes the signal and outputs the image via the HDMI port in resolutions up to 1080p at 60 frames per second. Two omnidirectional antennas with left-hand circular polarization (LHCP) and a radiation efficiency of more than 97% ensure minimal signal loss and reliable reception at a distance of up to 6 km.

Built-in microSD card slot allows you to record live video without external DVR. Power is supplied via a DC 5.5×2.1 mm coaxial connector with a voltage of 7.4–25.2 V, which allows it to be connected to 2–6S batteries.

The receiver supports a high frame rate mode of 720p at 120 fps to reduce latency, which is especially useful in dynamic flights. Fully customizable OSD menus and Canvas Mode support provide seamless Betaflight and INAV OSD integration.

Technical characteristics and functionality

The Ascent VRX model has dimensions of 114.5 × 64 × 24 mm and a weight of 118 grams. Frequency range - 5.725–5.829 GHz. Transmitter Power (EIRP): FCC/SRRC <30 dBm, CE <14 dBm. Bandwidth: 5/10/20 MHz and auto. The HDMI output supports resolutions of 1080p at 50/60 fps and 720p at 50/60/100/120 fps.

The receiver is equipped with two RP-SMA connectors for antennas with LHCP polarization and 2 dBi gain. Interfaces: HDMI, microSD slot (up to 256 GB), DC 5.5×2.1 mm, SH1.0×6PIN and USB Type-C. Video recording format is MP4 (H.264). Supports up to 8 channels in debug mode.

• Communication frequency: 5.730 - 5.815 GHz;
• Transmit Power (EIRP): FCC/SRRC:<20dBm; CE:<14dBm;
• Channels: 3;
• Weight: 6 g (antenna not included);
• Mounting hole: 25mm;
• Aspect ratio: 16/9;
• Resolution: 1080P/60fps, 720P/100fps;
• Image sensor: 1/2.8 inch;
• Working Bandwidth: 5M/10M/20M/Auto;
• Antenna: 1 (Ipex-1);
• Total Latency: Average Latency 35ms;
• OSD: Canvas mode;
• Bitrate: 25 Mbps;
• Supported FC systems: Betaflight; Inav; Fettec, Kiss; ArduPilot;
• Wide input voltage range: 3V~12.6V;
• I/O interface: JST1.0*4 (power cord); HSG0.8*5 (USB);
• Camera: 12*14*15mm and VTX: 30.5*30.5*3.5mm