// the field journal

Notes from the RF bench.

Practical field-tested writing on public safety wireless, RF prototyping, system design, and the management of complex wireless programs.

01
Featured·Public Safety

ERCES Design Essentials: Achieving NFPA 1221 & 72 Compliance the First Time

A practical walkthrough of designing Emergency Responder Communications Enhancement Systems that pass commissioning without expensive rework.

April 22, 2025 · 9 min
02Prototyping

When to Prototype, When to Simulate: Hard Lessons from RF Product Development

Simulation is fast and cheap — until it isn't. A practical framework for deciding when to spin a board and when to trust the model.

Mar 18, 2025 · 7 min
03Public Safety

DAS vs. ERCES: They're Not the Same System (and Why That Matters to Your Budget)

Cellular DAS and public safety ERCES are often conflated. Understanding the difference up front saves six-figure mistakes.

Mar 2, 2025 · 6 min
045G & Cellular

Private 5G for Industrial Sites: A Realistic Look at What It Takes

Private 5G promises deterministic wireless for industrial automation. Here's what a credible deployment actually requires.

Feb 14, 2025 · 8 min
05System Design

Why Skipping System Engineering Is the Most Expensive Decision on Your Project

System design isn't paperwork — it's risk reduction. Teams that skip it end up paying for it twice.

Jan 28, 2025 · 7 min
06Working with TWS

Choosing an RF Consultant: Seven Questions That Cut Through the Pitch

Not every consultant who claims RF expertise has touched a spectrum analyzer this decade. Here's how to filter signal from noise.

Jan 10, 2025 · 5 min
07RF Engineering

The Five Antenna Placement Mistakes We See on Almost Every Site Walk

Common, costly, and almost always preventable — these are the antenna placement errors that destroy coverage budgets.

Dec 15, 2024 · 6 min
08Project Engineering

Servant Leadership in Wireless Program Management

Technical leadership of wireless programs isn't about having the loudest opinion. It's about clearing the way for the team.

Nov 22, 2024 · 6 min
09Lab & Tooling

Building a Useful RF Test Lab on a Real-World Budget

You don't need a million-dollar anechoic chamber to do credible RF work. Here's what we actually use day to day.

Oct 30, 2024 · 7 min
10Public Safety

Modernizing Legacy P25 Networks: Pragmatic Paths Forward

Most agencies aren't replacing their P25 systems wholesale. They're evolving them. Here's how to plan that evolution credibly.

Oct 8, 2024 · 8 min