SKY AIR 1 – repeater signal for drone
The repeater signal operates in the 4.9–5.8 GHz frequency range, ensuring accurate data and video transmission. The station also has integrated 2s1p or 3s1p batteries, which provide 4 to 6 hours of autonomous operation, depending on the configuration. We have the option of using interchangeable antennas, which allows us to optimize signal quality for different operating conditions.
Technical specifications
Flight endurance:
Up to 40 minutes
Operating range / relay coverage
Up to 5 km
Control frequencies
Flexible configuration based on the video link
Video transmission frequencies
1080–1360 MHz
Supported frequency bands
0.868–2.5 GHz, 3.3 GHz, 5.3–5.9 GHz
Antennas
21 dBi patch antennas
Relay output power
1–2 W
Compatible systems
Autel, DJI (via adapters)
Features
Wide frequency range
The station operates in the 4.9–5.8 GHz band, enabling flexible adaptation to different signal transmission conditions and providing maximum coverage depending on user requirements.
Flexible power supply
The station is powered by 2S1P or 3S1P battery packs, providing an operating time of 4 to 6 hours. This allows selecting the optimal power source for long-duration missions or short flights.
Universal antenna adaptability
The ability to select and replace antennas allows users to configure the station to operate across the 4.9–5.8 GHz frequency range, optimizing signal transmission quality according to specific operating conditions.
Mounting adapter platform
The station is equipped with a dedicated adapter platform for mounting beneath the airframe of a carrier drone (e.g., DJI Matrice, Autel), ensuring secure attachment and easy integration with various drone models.
3D-printed enclosure with TX transmitter adapter
The station’s enclosure, manufactured using 3D printing, includes an adapter for the TX transmitter module, enhancing functionality and enabling quick replacement or future upgrades.
ELRS + TBS control system
The use of the ELRS + TBS control system for communication between the station and the drone ensures stable and reliable control during flight, which is critical for the successful execution of aerial missions.

Specifications
Technical parameters
| Name of characteristic | Value |
|---|---|
| Control data transmission system | ELRS + TBS / ELRS + ELRS |
| Antennas | Tailored to your requirements, 4.9–5.8 GHz |
| Enclosure | 3D-printed station enclosure with TX adapter |
| Mounting adapter | Available, for mounting under a carrier drone |
| Display | 0.96", color LCD |
| Sensitivity | −96 to −98 dBm ±1 dBm |
| Number of channels | 48–72 |
| Operating frequencies (control / reception) | 4990–5900 MHz |
| Narrow-Band Filter | Yes |
| Power supply | 2S1P battery (8.4 V) |
| Power consumption | 240 mA, input 240 mA |
| Weight | ~400 g |
| USB | Type-C, firmware update |
| Video output | 1.0 V-p / 75 Ω |
| Audio output | None |
| Video signal reception | 4.9–5.8 GHz |
| Video signal transmission | 1.2 GHz or 3.3 GHz |
| Available video receivers | SKYZONE SteadyView X (48 channels), Foxeer Wildfire Diversity (72), TBS Fusion |
| Modes | Mix1, Mix2, Mix3, Diversity |
| VTX model | ReadyToSky 1.2G VTX, 1 W |
| VTX operating frequencies | 1.2–3.3 GHz |
| VTX channel count | 9 |
| VTX output power | Pitmode / 25 / 200 / 1000 mW |
| VTX input voltage | 7–28 V DC |
| VTX output voltage | 5 V DC |
| Video format | NTSC / PAL |
| VTX antenna port | 50 Ω |
| Video output amplitude | C |
| Modulation type | FM |
| Connectors | 2× standard SMA |
| Ports | USB Type-C, for firmware updates |
| Antennas (options) | Helix up to 9 dBi; Patch TrueRC Sniper 13.5 dBi; Maple Leaf 5.8G 11 dBi; Patch 200×200 mm up to 18 dBi |
| Video receiver dimensions | 115×55×65 mm |
| Weight | 330 g |
Why choose SKY AIR 1 – repeater signal for drone
SKY AIR 1 is designed to extend the stable communication zone between the operator and the FPV drone during long-distance flights. The model is used in situations where a standard radio channel is insufficient, such as when operating in difficult terrain, at a considerable distance, or in conditions of radio interference. SKY AIR 1 improves the reliability of control and video transmission, ensuring channel continuity during flights beyond line of sight.
Key design features and engineering solutions
The station operates in the 4.9–5.8 GHz range, allowing you to select the optimal frequency for a specific flight scenario. Powered by 2s1p or 3s1p batteries, it provides 30–45 minutes of autonomy, sufficient for long missions involving retransmission. SKY AIR 1 is equipped with a printed case and adapters that allow the module to be installed on drones of various platforms. Replaceable antennas allow you to optimize signal range and quality, while ELRS and TBS support ensures stable communication channel operation.
Advantages of the model compared to other solutions
SKY AIR 1 provides a more stable radio channel over long distances compared to standard FPV systems. Thanks to its modular design, the station can be easily integrated with various drone carriers without complex modifications. A wide frequency range and support for modern control protocols guarantee better signal quality even in difficult conditions. This solution increases the efficiency of FPV drone flights, making their operation more predictable and controllable. SkyCraft accepts wholesale orders for SKY AIR 1 for Defense Forces units and partners.




