The VRX is the final link in your FPV video chain — and the most overlooked. A mismatched or underpowered receiver will degrade video quality regardless of how good your camera and transmitter are. This guide covers everything you need to choose the right VRX for your application.
1. What Is a VRX?
A VRX (Video Receiver) is the ground-side component that receives the wireless analog video signal transmitted by your drone's VTX. It demodulates the RF signal and outputs a clean composite video feed to your goggles, monitor, or recording device.
A low-sensitivity receiver will lose signal before your transmitter's range is exhausted — effectively wasting the power output of your VTX.
2. Key Specifications to Understand
Receive Sensitivity (dBm)
This is the most important VRX specification. Lower numbers mean better sensitivity.
- -85dBm — Basic sensitivity, suitable for short-range use
- -90dBm — Good for mid-range applications
- -95dBm — High sensitivity, recommended for long-range and professional use
All AERVUE VRX receivers are rated at -95dBm.
Frequency Coverage
Your VRX must operate on the same frequency band as your VTX. Make sure the frequency ranges of your VTX and VRX overlap.
Channel Count
More channels give you greater flexibility to avoid interference. Most modern VRX units support 9CH to 16CH within their frequency band.
Input Voltage
Most VRX units accept a wide input voltage range (7–36V DC), compatible with standard drone ground station power supplies.
Video Output
Standard analog VRX units output composite video (CVBS) at 75Ω impedance — compatible with virtually all FPV goggles, monitors, and DVR devices.
3. Form Factors
Compact Module VRX
Small, lightweight receivers designed for portable ground stations or integration into goggle systems. Best for: Racing, freestyle, portable field use, goggle integration.
Box Receiver (VRX Box)
Larger format receivers housed in a robust enclosure. Designed for fixed ground station installations. Best for: Fixed ground stations, commercial surveillance, long-range professional operations.
4. Frequency Bands
1.2GHz
The longest-range FPV band. The 1.2G VRX covers 1050–1380MHz across 9 channels.
3.3GHz
A growing professional band. The 3.3G VRX and 3.3G VRX SE both cover 3170–3470MHz with 16 channels and -95dBm sensitivity.
4.9–5.9GHz
A wideband receiver covering both the 4.9GHz and 5.8GHz spectrum in a single unit. 16 channels, -95dBm sensitivity, 5V 1A onboard output.
Multi-Band (VRX Box)
Supports 1.2 / 1.7 / 2.7 / 3.3 / 5.8GHz in a single box receiver. The ultimate ground station receiver for operations where frequency flexibility is critical.
7.2GHz
Dedicated receiver for the 7.2GHz professional band. Pairs with 7.2GHz VTX units for clean, interference-free video in spectrum-congested environments.
5. Matching Your VRX to Your VTX
- Frequency must overlap — Your VRX must cover the exact frequency your VTX is transmitting on
- Sensitivity matters more than power — A -95dBm VRX will outperform a -85dBm unit at range, regardless of VTX power level
Recommended VTX / VRX Pairings
| VTX Model | Recommended VRX | Band |
|---|---|---|
| 1.2GHz 800mW / 1.6W / 2W / 4W / 5W / 10W VTX | 1.2G VRX | 1.2GHz |
| 3.3GHz 4W / 5W / 10W VTX | 3.3G VRX or 3.3G VRX SE | 3.3GHz |
| 5.8GHz 1.6W / 3W VTX | 4.9–5.9G VRX | 5.8GHz |
| 4.9–6GHz 7W / 15W VTX | 4.9–5.9G VRX | 4.9–5.9GHz |
| 7.2GHz 3W / 5W / 7W VTX | VRX Box 7.2G | 7.2GHz |
| Multiple bands / mixed fleet | VRX Box (Multi-band) | 1.2–5.8GHz |
6. OEM and Bulk Buying Considerations
- Frequency certification — Ensure the VRX is certified for your target market (CE for EU, FCC for US)
- MOQ flexibility — Factory-direct suppliers typically offer MOQ from 20 units
- Custom labelling — OEM branding is available for volume orders
7. Quick Comparison
| Model | Band | Channels | Sensitivity | Form Factor | Best For |
|---|---|---|---|---|---|
| 1.2G VRX | 1.2GHz | 9CH | -95dBm | Compact | Long-range fixed-wing |
| 3.3G VRX | 3.3GHz | 16CH | -95dBm | Compact | Mid-range professional |
| 3.3G VRX SE | 3.3GHz | 16CH | -95dBm | Compact | Mid-range professional |
| 4.9–5.9G VRX | 4.9–5.9GHz | 16CH | -95dBm | Compact | 5.8GHz / wideband use |
| VRX Box (Multi-band) | 1.2/1.7/2.7/3.3/5.8G | Multi | -95dBm | Box | Mixed fleet operations |
| VRX Box 7.2G | 7.2GHz | — | -95dBm | Box | Professional / gov UAV |
8. Final Checklist Before You Buy
- ✅ VRX frequency band matches your VTX
- ✅ Receive sensitivity is -95dBm or better
- ✅ Channel count is sufficient for your operating environment
- ✅ Form factor suits your ground station design (compact vs. box)
- ✅ Input voltage is compatible with your power supply
- ✅ Video output (75Ω CVBS) matches your goggles or monitor
- ✅ CE/FCC certified for your target market
Conclusion
Choosing the right VRX comes down to matching the frequency band of your VTX, prioritising receive sensitivity, and selecting the right form factor for your application. AERVUE supplies 6 VRX models covering 1.2GHz, 3.3GHz, 4.9–5.9GHz, multi-band, and 7.2GHz — all rated at -95dBm sensitivity and available factory-direct from MOQ 20 units.
Looking for a VRX supplier?
AERVUE offers 6 VRX models across all major frequency bands. Factory direct, OEM available from MOQ 20 units.