# Counter-UAS RF Systems — Comprehensive Engineering & Technology Specification

> Canonical Web Address: https://counter-uas.nevsky.ae/
> Single Source of Truth for Counter-UAS Modular RF Technology Platform

## 1. Project Overview & Identity
Counter-UAS RF Systems is an independent technology development initiative focused on the architecture, prototyping, and validation of high-power modular radio frequency (RF) subsystems for next-generation counter-unmanned aerial systems (Counter-UAS).

- Web Portal: https://counter-uas.nevsky.ae/
- Current Phase: Engineering development & prototype integration
- Status: Strategic technology partnerships open
- Positioning: Modular RF hardware and programmable signal generation engine for OEM integrators and defence technology manufacturers.

## 2. Technical Narrative & Challenge Vector
Modern commercial, tactical, and autonomous unmanned aerial systems rely on multi-tier radio links:
1. Command & Telemetry Links (RC/Uplink): 433 MHz, 868/915 MHz, 2.4 GHz, and 5.8 GHz.
2. Satellite Navigation (GNSS/PNT): GPS L1/L2, GLONASS G1/G2, Galileo E1/E5b, BeiDou B1/B2.
3. High-Definition Digital Video Downlink: 2.4 GHz and 5.8 GHz wideband OFDM.
4. Custom Frequency Hopping (FHSS) & Non-Standard Control Links: 50–1000 MHz tactical bands.

Countering these systems requires agile, broadband, high-efficiency RF power amplification combined with complex programmable waveform synthesis rather than narrow-band, fixed-frequency analog jamming.

## 3. Platform Architecture & Subsystems

### 01. Signal Generation Subsystem
- Synthesis Method: Direct Digital Synthesis (DDS) & high-speed FPGA-driven stochastic waveform generators.
- Waveform Types: Non-periodic pseudo-random noise (PRN), swept carrier jamming, multi-tone comb generation, and broadband Gaussian noise.
- Frequency Agility: Microsecond frequency hopping capability across programmed mitigation profiles.

### 02. High-Efficiency RF Amplification (PA)
- Semiconductor Technology: Gallium Nitride (GaN) on SiC high-electron-mobility transistors (HEMT).
- Frequency Coverage: Baseline 50–3000 MHz partitioned across modular swappable amplifier blocks.
- RF Output Power: Target up to 300 W aggregate across active transmission channels.
- Power Added Efficiency (PAE): Target 35–48% depending on instantaneous frequency band.

### 03. Power Conditioning & Protection
- Input Supply: Wide DC operating window (10–36 VDC) accommodating vehicle alternators, battery packs, and industrial DC buses.
- Protection Features: Reverse polarity, transient voltage spikes (MIL-STD-1275 compliant filtering design), thermal throttling, and VSWR open/short circuit mismatch protection.

### 04. Antenna Integration & Subsystem Topology
- Antenna Types: Broadband directional log-periodic arrays (LPDA) and omnidirectional multi-band collinear antennas.
- Channel Isolation: Dedicated low-pass/band-pass filtering to minimize cross-modulation between concurrent active channels.

## 4. Development Status & Engineering Roadmap
- CURRENT (Baseline Architecture):
  - 50–1000 MHz power amplifier and exciter schematics finalized.
  - Multi-layer PCB topology laid out.
  - Selected subsystem prototypes bench-tested.
  - Wide-input power converter and signal generator prototypes under fabrication.
- NEXT (Multi-Channel Prototype):
  - Full 6-channel integrated prototype bench assembly.
  - Wideband antenna matching network optimization.
  - Custom aluminum enclosure with active thermal dissipation.
  - Laboratory RF power and spectral purity verification.
- THEN (Industrialisation & Field Trials):
  - Field range validation under controlled proving-ground conditions.
  - Tooling and manufacturing engineering for low-rate initial production (LRIP).
  - Regulatory EMC compliance pathway.
- FUTURE (Scaling & Modular Expansion):
  - Higher-frequency modular blocks (>3000 MHz).
  - OEM integration kits for stationary and vehicle-mounted installations.
  - Regional localisation and joint assembly in partner facilities.

## 5. Strategic Partnership Framework
Counter-UAS RF Systems is open to strategic partnerships across five formal structures:
1. Co-Development: Joint hardware engineering, firmware optimization, and laboratory characterization.
2. OEM Subsystem Integration: Supplying bare-board or enclosed RF modules to established drone defense integrators.
3. Technology Licensing: Licensing schematic IP, PCB layout designs, and firmware algorithms.
4. Industrialisation: Contract manufacturing and component assembly partnerships.
5. Regional Localisation: Potential future localisation in the UAE / MENA region with licensed defense and industrial partners.

## 6. Claims Boundary & Truth in Marketing
- The platform is explicitly presented as an engineering-stage technology initiative.
- No unverified claims regarding operational disruption ranges are made.
- Specifications reflect designed, simulated, and measured bench values.