| Detection Technology | Determine whether the system uses radio-frequency detection, radar, electro-optical or infrared cameras, acoustic sensors, or a combination of technologies. | Multi-sensor systems generally provide better coverage and confirmation than a single detection method. | Use complementary sensors when buildings, vegetation, weather, or radio interference may block one detection method. | Check sensor status, firmware, calibration records, and communication links according to the supplier's service schedule. | Very High |
| Detection Range | Compare the stated range for early warning, reliable classification, and visual confirmation rather than relying on one maximum-distance figure. | Typical ranges may vary from approximately 1–3 km for compact systems to more than 5 km for larger radar-based deployments, depending on target size and conditions. | Install sensors with a clear line of sight and place them above nearby obstructions where permitted. | Recheck coverage after construction, landscaping, antenna changes, or other physical changes near the site. | Very High |
| Detection Accuracy | Review the probability of detection, false-alarm rate, minimum detectable target size, and performance against low, slow, or hovering drones. | A practical acceptance target is high detection probability with a low false-alarm rate under representative site conditions; results should be verified by field testing. | Conduct acceptance tests using authorized targets or controlled simulations at different approach angles and heights. | Analyze false alarms monthly and update exclusion zones, signal libraries, and detection rules when necessary. | Very High |
| Radio-Frequency Coverage | Assess supported frequency bands, protocol recognition, encrypted or unknown signal handling, and performance in congested wireless environments. | Many systems monitor commonly used control and navigation bands, but frequency coverage differs by region and equipment configuration. | Perform a radio-frequency survey before installation and keep antennas separated from high-power transmitters. | Review the local spectrum environment and update software-defined detection libraries when supported. | High |
| Radar Performance | Evaluate range resolution, azimuth accuracy, elevation coverage, target tracking, and performance in clutter. | Short-range security radars commonly provide meter-level range resolution, while angular accuracy depends on antenna design, target distance, and environment. | Mount the radar on a stable structure with an unobstructed view and avoid nearby moving objects that may create clutter. | Inspect mounting stability, radome condition, alignment, and environmental sealing; recalibrate after structural movement. | High |
| Camera Verification | Check daylight resolution, low-light performance, infrared capability, optical zoom, stabilization, and automatic tracking. | Visual identification depends on distance, lighting, weather, lens selection, and target size; camera specifications alone do not guarantee recognition. | Position cameras to overlap important approach corridors and avoid direct glare, reflective surfaces, and strong backlighting. | Clean lenses, inspect wipers or heaters where fitted, verify focus, and test day/night switching on a scheduled basis. | High |
| Acoustic Detection | Assess microphone sensitivity, noise filtering, wind tolerance, and the ability to distinguish drone signatures from vehicles, machinery, and aircraft. | Acoustic systems are generally most useful at shorter distances and in relatively quiet environments; performance decreases with wind, rain, and high background noise. | Install microphones away from HVAC outlets, generators, busy roads, and large reflective walls. | Check microphone covers, moisture protection, signal quality, and background-noise changes. | Medium |
| Weather Resistance | Review operating temperature, humidity tolerance, rain protection, wind resistance, icing limits, and ingress protection. | Outdoor equipment should normally be rated for continuous exposure to local environmental conditions; an IP rating alone does not define full weather performance. | Use suitable enclosures, drainage, surge protection, grounding, and heating or cooling where required. | Inspect seals, connectors, cable glands, drainage paths, heaters, fans, and corrosion-prone parts. | High |
| Coverage and Site Layout | Map protected zones, likely approach routes, blind spots, restricted areas, and sensor overlap before selecting equipment quantities. | Coverage should be calculated using terrain, buildings, trees, sensor height, antenna patterns, and the smallest target that must be detected. | Use a site survey and coverage model; provide overlapping detection areas for critical approaches where practical. | Repeat the coverage assessment after major site modifications or changes in threat profile. | Very High |
| Alert Speed and Tracking | Measure the time from initial detection to operator alert, target classification, track creation, and camera cueing. | For security operations, alerts should be generated within seconds and should include location, direction, altitude estimate, confidence, and sensor source. | Connect sensors to a synchronized command platform and test network latency under normal and backup conditions. | Review event logs, time synchronization, alert delivery, and tracking continuity during routine tests. | Very High |
| Integration Capability | Check compatibility with video management systems, access control, security operations software, mapping tools, and approved response procedures. | Open, documented interfaces and standard network protocols generally simplify integration and future expansion. | Define network architecture, cybersecurity zones, user permissions, and data-retention requirements before deployment. | Patch connected systems, review user access, test interfaces, and maintain current network diagrams. | High |
| Cybersecurity | Evaluate encryption, secure boot, authentication, role-based access, vulnerability management, and audit logging. | Remote administration should use strong authentication, encrypted connections, least-privilege access, and controlled software updates. | Place management interfaces on protected networks and disable unused services, ports, and default credentials. | Apply approved security patches, review logs, rotate credentials, and test backup and recovery procedures. | Very High |
| Power and Communications | Assess power consumption, battery backup, network bandwidth, wired or wireless connectivity, and failover options. | Critical installations should have backup power sufficient to maintain detection and communications during expected outages. | Use protected cabling, surge suppression, grounding, network redundancy, and a documented power budget. | Test batteries, uninterruptible power supplies, network failover, connectors, and cable integrity. | High |
| Installation and Commissioning | Confirm site survey quality, equipment positioning, sensor calibration, network setup, alarm configuration, and operator training. | A complete commissioning process should include documented performance tests for detection, classification, tracking, alerts, recording, and system recovery. | Use a formal installation checklist, measured sensor coordinates, synchronized system time, and clearly marked maintenance access points. | Keep as-built drawings, configuration backups, calibration records, test results, and training records. | Very High |
| Routine Maintenance | Define preventive, corrective, and emergency maintenance responsibilities and response times. | A practical program may include daily system-status checks, monthly functional tests, quarterly physical inspections, and annual performance validation. | Provide safe access, weather-protected service areas, spare parts, and procedures for maintenance during live operations. | Document all inspections, faults, repairs, software changes, false alarms, and post-maintenance verification tests. | Very High |
| Regulatory and Privacy Compliance | Review local requirements for radio monitoring, radar operation, surveillance recording, data protection, and airspace-related procedures. | Legal requirements vary by jurisdiction, operating frequency, site type, and whether cameras or personal data are involved. | Obtain required approvals before installation and define camera masking, retention periods, signage, and access controls. | Audit compliance records, privacy settings, retention rules, permissions, and regulatory changes. | Very High |
| Total Cost of Ownership | Include equipment, installation, civil works, network services, software licenses, training, calibration, energy, repairs, and replacement cycles. | A lower purchase price may result in higher long-term costs if the system requires frequent manual verification, proprietary upgrades, or specialized servicing. | Compare lifecycle costs over at least five years and include expansion capacity for additional sensors or protected zones. | Track annual operating costs, spare-part usage, downtime, support response, and upgrade requirements. | High |
