UK Physical Security & Telecom Engineering Suite
Open-source engineering calculators, field masterclasses, and technical specifications created by Gary Pearce (25+ years hands-on experience, ADI Communications). Free for UK homeowners, facility managers, and trade engineers.
Interactive Diagnostic Web Applications
Live, client-side engineering tools with zero tracking and instant results.
CCTV Lens & Police Evidence DORI Calculator
BS EN 62676-4 compliance tool. Calculates exact focal length and pixel density (250 px/m) required for Crown Prosecution Service court facial recognition.
Starlink Gen 3 & Mini Storm Bracket Calculator
Simulate aerodynamic wind drag, bending moments, and non-drill chimney lashing cradle shear stress against harsh 90mph Pennine winter gales.
Upstairs Ethernet & Network Diagnostic Tool
Evaluate UK masonry, solid 9-inch brick, stone barn walls, and split-RCD consumer unit phase noise. Simulates solid copper Cat6 gigabit throughput.
Ajax Alarm Grade & Hardware Selector
BS EN 50131 Grade 2 vs Grade 3 compliance selector. Evaluates Jeweller 868MHz penetration through thick stone walls, MotionCam PhOD, and dual-SIM 4G failover.
TV Over Fireplace Thermal Calculator
Simulate heat deflection above 5kW–10kW wood burners and open fires. Calculates safe mantelpiece depth and pull-down bracket clearances to protect 4K OLEDs.
CCTV Storage & Bandwidth Calculator
Size surveillance-grade NVR hard drives (WD Purple/SkyHawk) and network switch throughput based on H.265+ smart compression, 4K resolution, and retention days.
PoE Voltage Drop & Cable Resistance Calculator
Simulate IEEE 802.3af/at/bt loop resistance and voltage drops over Cat6 solid copper vs CCA up to 100m. Prevent dusk camera IR reboot loops.
PoE Switch Power Budget & Night-Loading Calculator
Benchmark daytime baseline vs night-time IR/ColorVu LED surge and cable resistance loss. Ensure 20%+ headroom to prevent night-time camera dropouts.
Starlink vs 4G/5G Cost & Speed Benchmark
Compare 1, 2, and 3-year Total Cost of Ownership (TCO), latency, and real-world speeds between SpaceX Starlink and high-gain external 4G/5G directional masts.
Garden Office Wi-Fi Bridge vs Fibre Tool
Calculate Fresnel zone 60% clearance radius, trench excavation labor savings, and 1Gbps link speeds for detached garden pods, studios, and outbuildings.
Smart Doorbell Transformer & Wedge Calculator
Diagnose consumer unit 8V vs 24V AC transformer compatibility and calculate 15°/30° corner wedge angles to eliminate masonry infrared glare for Ring & Nest.
Broadcast 1080p Field Masterclasses
Single-take continuous technical engineering debriefs hosted on YouTube.
Starlink Gen 3 & Mini UK Installation: 90mph Gale Chimney Mounts, Bypass & Speed Test
Field analysis by Gary Pearce: Gen 3 kickstand dish vs Mini USB-PD specs, non-drill tensioned chimney cradles, and whole-home Wi-Fi 7 mesh bypass mode.
Ajax Smart Alarms UK Masterclass 2026: Why Legacy 433MHz Bells Fail & MotionCam PhOD
Field breakdown: Grade 2 Jeweller 868MHz frequency hopping, anti-jamming cellular failover, MotionCam 9-second visual verification, and 113dB StreetSiren rigging.
Hikvision ColorVu vs Infrared CCTV UK: Night Vision, DORI Standards & 4K Police Evidence
Field masterclass: F1.0 super-apertures, BS EN 62676-4 DORI 250 px/m facial identification, unjammable hardwired PoE, and WD Purple 24/7 NVR drives.
UK Security & Telecoms Engineering Debrief
Available on Apple Podcasts, Spotify, and direct RSS feed.