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SKY LINK-OS01 Optically Stabilized Repeater Carrier

SKY LINK OS01 is a specialized aerial platform designed to lift and maintain relay equipment at altitude with high stability. Thanks to its integrated optical stabilization system and high-performance antenna arrays, the platform ensures a reliable communication link between the operator and strike drones over long distances, mitigating the impact of complex terrain and physical obstacles.

Technical specifications

Transmit gain

20-25 dB

Receive gain

до 21 dB

Supported frequency bands

0.868–2.5 GHz, 3.3 GHz, 5.3–5.9 GHz

Dimensions

400 × 198 × 124 mm

Noise figure

≤ 3.5 dB (typical)

Weight

1.38 kg

Order

Specifications

Technical parameters

Name of characteristicValue
Flight platform (carrier) parameters
Frame size and type15-inch, reinforced carbon fiber, X-shaped geometry
Overall dimensions512 mm (wheelbase) / 836 mm (with propellers)
Carrier weight2.2 kg (without battery and payload)
Maximum payload capacityUp to 7.2 kg (reserve for heavy batteries and equipment)
Flight speedCruise: 60 km/h; Maximum (no payload): 80 km/h
Power system4 brushless motors, 2.3 kW each
Flight controllerF722 class (SoloGood or compatible) with BetaFlight firmware
Power supplySupport for 1×33.6 V (20 Ah) or 2×33.6 V (15 Ah) batteries
Relay system characteristics
Stabilization systemOptical gimbal stabilization to maintain antenna vector alignment
Control frequenciesFlexible configuration within 433–2600 MHz (ELRS)
Video relay frequenciesSupported bands: 1200–5800 MHz (analog)
Signal powerIntegrated transmitter / amplifier rated at 1–2 W
Antenna characteristicsDirectional high-gain patch antennas, 21 dBi
Coverage rangeProvides stable communication within a radius of up to 5 km around the platform
Optical system1800 TVL camera with light sensitivity of 0.00001 lux (night-capable)
Operational and telemetry data
Flight range (radius)Up to 25 km from the operator
Loiter timeUp to 28 minutes on a single charge (depending on battery configuration)
Data display (OSD)Altitude, heading, voltage, current, RSSI, link quality (LQ)
Environmental conditionsTemperature: −20 to +40 °C; wind up to 7 m/s; IP30 protection

Why choose SKY LINK-OS01 Optically Stabilized Repeater Carrier

SKY LINK OS01 serves as an “air bridge” in modern network-centric operations. The primary mission of the platform is to extend the operational range of FPV strike drones and reconnaissance UAVs by relaying control signals and video feeds.

The carrier platform is designed for the following scenarios:

  • Over-the-horizon operations: Enables strike groups to operate behind hills, tree lines, and in urban environments where direct radio line-of-sight between the control station and the drone is unavailable.
  • High-altitude relay point: Lifting the relay payload to altitudes of 500+ meters significantly increases coverage area and signal stability under active enemy electronic warfare (EW) conditions.
  • Persistent loitering: The platform is optimized for stable station-keeping, allowing a continuous communication corridor to be maintained for an entire wave of strike drones.

Key design features and engineering solutions

The SKY LINK OS01 architecture is built around the concept of maximum signal stability. Unlike conventional drones with improvised relay payloads, this platform features a fully integrated engineering design:

  • Optical gimbal stabilization: The antenna and camera mounting system automatically compensates for airframe tilt and vibration caused by wind. This ensures that narrow-beam directional antennas (patch antennas) remain precisely oriented toward the strike drone operating area, preventing signal loss.
  • Electromagnetic compatibility: Component placement within the frame is engineered so that onboard motors and electronics do not induce interference in the relay’s sensitive receivers.
  • Frequency-band modularity: SKY LINK OS01 supports rapid swapping of frequency modules (from 0.868 GHz to 5.9 GHz), allowing the platform to be adapted in the field to specific strike drone models or video link types (analog/digital).
  • Energy efficiency: The use of optimized large-diameter propellers and a high-voltage power system (6S) provides the extended flight time required for prolonged missions.

Advantages of the platform compared to other solutions

SKY LINK OS01 outperforms most improvised “Mavic-style relay drones” or stationary masts thanks to its mobility and technical capabilities:

  • Dynamic repositioning: Unlike ground-based masts, the platform can rapidly change its airborne position to bypass enemy EW zones or illuminate targets from a different angle.
  • High-performance antenna system: The use of high-gain patch antennas (21 dBi) combined with active amplifiers rated at 1–2 W delivers several times greater coverage range than standard solutions.
  • Interference resilience: Integrated narrow-band filters suppress external noise, ensuring a “clean” communication channel even in a congested RF environment.