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RG-8 Extension coaxial cables N-Type–QMA (2×20 m) are heavy-duty professional RF cables designed for connecting Avenger and Alientech DEIMOX antennas, providing better signal quality and reduced losses over long distances. The cable features 50-ohm impedance, a foamed polyethylene dielectric, an aluminum inner conductor with copper cladding, and shielding made of self-adhesive aluminum foil combined with tinned copper braid under a black polyethylene jacket. It operates up to 21 GHz, has low attenuation, a bend radius of 51 mm, weighs 80 g/m, and works in temperatures from –40°C to +80°C.
🫡 We are a team of veterans
We treat RG-8 as a critical part of the communication link between the controller and the active antenna. In real operations, cable losses are often the weakest point of a system, so using RG-8 with low attenuation, high-quality shielding, and stable 50-ohm impedance directly affects range and reliability. This is crucial for military UAV operators.
⚙️ Technical Specifications
| Parameter | Value |
|---|---|
| Cable type | RG-8 |
| Connectors | N-Type – QMA |
| Length | 2 × 20 m |
| Cable impedance | 50 ohm |
| Capacitance | 78 pF/m |
| Velocity factor | 85% |
| Maximum operating frequency | 21 GHz |
| Spark test voltage | 8000 Vrms |
| Peak power | 16 kW |
| Weight | 80 g/m |
| Bend radius | 51 mm |
| Temperature range | –40…+80°C |
| RoHS compliance | Compliant |
Attenuation (typical, 25°C, dB/m)
| Frequency (MHz) | Attenuation (dB/m) |
|---|---|
| 100 | — |
| 400 | 0.10 |
| 450 | — |
| 900 | — |
| 1000 | 0.16 |
| 2500 | — |
| 3000 | 0.28 |
| 5000 | 0.38 |
| 5800 | — |
| 6000 | 0.42 |
Commentary / comments
RG-8 offers clear advantages over thinner cables due to superior shielding and lower losses over long runs. The aluminum inner conductor with copper cladding and foamed dielectric reduce dielectric losses, while dual shielding improves resistance to interference. This makes RG-8 ideal for high-power active antennas such as Avenger and Alientech DEIMOX.
🎯 Who it is suitable for
Primarily for military UAV operators, reconnaissance units, and special forces using active directional antennas like Avenger or Alientech DEIMOX who require minimal signal loss over long cable runs. It is also suitable for professional drone operators and engineering teams building reliable RF systems.