Field notes
Honest, standards-grounded notes on coverage design and running the work — no filler.
One model & lifecycle · July 6, 2026 · 2 min read
As-Built or Out of Date
Most as-builts are a PDF exported once, three remodels ago. When the as-built is generated from a live model, it is the current state — not an archive.
One model & lifecycle · July 6, 2026 · 2 min read
Cable Paths by Physics
Cable length is not a straight line times a fudge factor. Real routes, service loops, and pull tension decide what you buy and whether the pull survives.
Conference AV · July 6, 2026 · 2 min read
Display Sizing by the Standard
The back row cannot read a screen too small for the room. AVIXA DISCAS turns can-they-read-it into a distance you compute from the screen and the content.
Camera & DORI · July 6, 2026 · 2 min read
Glass Is Not a Wall
To Wi-Fi, glass is nearly transparent. To a camera, it reflects and refracts. Modeling glass as a plain wall gets both the coverage and the camera view wrong.
Camera & DORI · July 6, 2026 · 2 min read
Fisheye and Panoramic Coverage
A fisheye lens does not see in a straight line, so a triangular coverage wedge lies about it. How to estimate real coverage for 180 and 360 degree cameras.
Running the business · July 6, 2026 · 2 min read
Internal IT and the Truck Roll
A corporate IT team owns its buildings but rents its coverage answers: a seat opened twice a year, a trip per complaint. There is another way.
Camera & DORI · July 6, 2026 · 2 min read
Night Blindness: IR From the Datasheet
A camera that reads faces at noon can go dark at 2 a.m. Its infrared reach is a datasheet number, not a lux rating — design night coverage before you install.
Running the business · July 6, 2026 · 2 min read
One Seat vs a Shelf of Point Tools
The tools that make an independent consultant credible were priced for firms. The case for one seat that holds the design, the deliverable, and the bill.
Running the business · July 6, 2026 · 2 min read
The Renewal Starts at the Install
The install you finish is the renewal you keep next year — if the record stays live. How one model carries design through to renewal without re-keying.
Virtual site survey · July 6, 2026 · 2 min read
The Autonomous Site Walk
Instead of walking a building with a kit, the survey can walk it for you — systematically, and flag the gaps with physics-backed fixes before you visit.
Virtual site survey · July 6, 2026 · 2 min read
The Truck-Roll Math
A predictive design does not need a plane ticket and a $3K kit. Here is the honest math on what a survey trip costs today, and where a visit still earns it.
Wi-Fi & RF · July 6, 2026 · 2 min read
Wall-Material Attenuation Cheat Sheet
Not all walls cost the same signal. A reference for how much Wi-Fi typical building materials attenuate — drywall to glass to concrete to metal — and why.
Conference AV · July 6, 2026 · 2 min read
Why Conference-Room Audio Fails
The microphone gets the blame, but the room is at fault. How reverberation (RT60) and background noise wreck speech intelligibility — and what fixes it.
One model & lifecycle · July 6, 2026 · 3 min read
Your BOM Is the Design
A bill of materials keyed by hand drifts from the drawing the moment one of them changes. When the BOM is generated from what you placed on the plan, it cannot.
Virtual site survey · July 5, 2026 · 4 min read
The Virtual Site Survey Workflow
The survey that once needed a plane ticket and a hardware kit can start from your floor plan. Here is the virtual site survey workflow, step by step.
Camera & DORI · July 5, 2026 · 3 min read
PPF Is the Floor, Not the Ceiling
A pixels-per-foot number draws a clean wedge on a flat plan. Fisheye lenses, night IR, and shadows from walls and racking are where camera coverage breaks.
Conference AV · July 5, 2026 · 3 min read
Conference AV, Scored by the Standard
Conference-room AV is not a matter of taste: AVIXA DISCAS, IEC 60268-16 STI, and mic polar patterns score every seat for sightline, sound, and pickup.
One model & lifecycle · July 5, 2026 · 3 min read
The Cost of Six Spatial Models
The nearest thing to one platform is six tools stitched together: Ekahau, IPVM, EASE, System Surveyor, ConnectWise, DocuSign. Here is what the seams cost you.
Wi-Fi & RF · July 5, 2026 · 3 min read
Predictive vs. measured Wi-Fi surveys
Predictive and measured Wi-Fi surveys answer different questions. Here is what each one is for, when to spend the effort, and how a calibrated model uses both.
Wi-Fi & RF · July 5, 2026 · 2 min read
Why Racking Wrecks Warehouse Wi-Fi
Most predictive tools treat a warehouse like an empty box. Steel racking attenuates Wi-Fi by depth and angle — why aisles go dead, and how to model it.
Camera & DORI · July 5, 2026 · 4 min read
What DORI Actually Means for Cameras
DORI (IEC 62676-4) grades camera coverage in pixels per metre: Detect, Observe, Recognize, Identify. What each tier needs, and why one PPF number fails.
Wi-Fi & RF · July 5, 2026 · 3 min read
A Wi-Fi heatmap without Ekahau
You do not need a subscription and a hardware kit for a predictive Wi-Fi heatmap — here is how a computed one works, and where measuring on site still counts.
Wi-Fi & RF · July 5, 2026 · 3 min read
The Physics of an Honest Wi-Fi Heatmap
A predictive Wi-Fi heatmap is only as honest as its physics. Here is what ITU-R P.2040, P.526, and P.1238 model, and why the more conservative answer wins.
Product & field notes · July 2, 2026 · 1 min read
Introducing SiteOps Command
One operating picture for integrators: survey and design in 2D/3D, generate the deliverables, run the project, and keep the renewal. All on one model.
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