Precision Tools for
Wireless Professionals
Plan, calculate, and deploy outdoor wireless links with confidence. LinkZoneTools gives engineers and network planners the professional-grade tools they need — all in one platform, from anywhere.
Plan a Wireless Link
From GPS coordinate lookup to full path profile analysis — LinkZoneTools brings professional RF engineering tools to your browser, no software installation required.
Path Profile & Line of Sight Analysis
Enter two locations on a map and get the full terrain path profile with line-of-sight and Fresnel zone clearance, obstruction detection, antenna height requirements, and the ITU rain zone for the path — all in one view.
Core ToolLink Budget & Performance Calculator
Select radios from the verified database or enter specs manually, and get RSL, fade margin, system gain, throughput, and annual availability (ITU-R P.530-18) in one place. Combines link budget, radio selection, and availability into a single workflow.
Core ToolRF Coverage & Sector Planner
Model terrain-aware coverage from any tower location and design multi-sector layouts with up to 6 configurable sectors. Visualize signal strength zones, beam patterns, coverage overlap, and EIRP per sector on an interactive map.
Core ToolITU Rain Zone Lookup
Input any GPS coordinate on Earth and instantly retrieve the correct ITU rain zone designation (A through Q) along with the corresponding rainfall rate in mm/hr.
UtilityFree Space Path Loss Calculator
Compute free space path loss for any frequency and link distance using the standard ITU-R P.525 formula. Essential for link budget planning and system design.
UtilityBatch Link Budget Calculator
Calculate link budgets for up to 20 wireless links simultaneously. Ideal for network planning projects. Export results to PDF or CSV.
UtilityPropagation Classifier
Upload a site photo and let AI classify your propagation environment. Get recommended clutter loss values, antenna heights, and link type suitability.
UtilityUnit & Frequency Converter
Convert between dBm and watts, feet and meters, GHz and MHz. Includes antenna gain, noise floor, Shannon capacity, cable loss, and FSPL quick calculators.
UtilityOpen a Tool
No sign-up, no install. Pick a tool and start working straight away in your browser.
Enter Your Link Data
Input GPS coordinates, frequencies, and equipment specs. Our tools handle the rest — no manual formula lookup needed.
Analyze & Visualize
View path profiles, Fresnel zones, link budgets, and map overlays — all rendered in your browser instantly.
Plan with Confidence
Export results, share with your team, and deploy your wireless link with the certainty that your design is sound.
Professional RF Engineering
Tools, Built for the Field
Every tool built on ITU-standard formulas. No guesswork. No proprietary lock-in.
Every tool on this site is fully open right now — no account, no limits, no card. We're still adding capability, and we'd rather have working engineers using it and telling us what's missing.
Actively in development
LinkZoneTools is built and maintained by a working RF engineer in Sarasota, Florida. Tools are added and refined continuously. Paid features are planned, but nothing is gated today — if it's on the site, you can use it.
Everything, at no cost
- All tools, unlimited use
- No account or sign-up
- Verified radio database
- Built-in explanations on every field
- Save projects to a file
- PDF report export
Accounts & cloud projects
- Projects that follow you between devices
- Multi-link network management
- Shared team access
- Branded client reports
Ideas we're weighing
- Terrain-aware coverage modelling
- Spectrum occupancy dashboard
- Saved equipment inventories
- API access for integrations
Tell me what you need
If a tool is missing something, a radio isn't in the database, or a number looks wrong, I want to hear about it. Feedback from people doing real link design shapes what gets built next — and I'll let you know when paid features arrive.
Get in touch →Every calculation in LinkZoneTools follows published ITU-R recommendations. Here's what powers the math:
ITU-R P.838
Rain attenuation model used in our rain zone lookup and link reliability calculations. Maps any GPS coordinate to a specific rain zone (A–Q) with corresponding rainfall intensity in mm/hr.
ITU-R P.525
Free Space Path Loss formula: FSPL (dB) = 20·log₁₀(d) + 20·log₁₀(f) + 92.45 (for km and GHz). Used in all link budget tools.
Fresnel Zone (Standard)
First Fresnel zone radius: r₁ = 17.3·√(d₁·d₂ / f·d) where d₁, d₂ are distances from each end in km, f is frequency in GHz, and d is total path length in km.
Let's Get You Connected
Questions about tools or getting started? We're based in Sarasota, FL and happy to help.
LinkZoneTools LLC
We build professional-grade wireless planning tools for engineers and businesses. Whether you're designing a new backhaul link or evaluating a site, we'd love to show you what LinkZoneTools can do.
All tools are free to use while in development — no account needed. If something's missing or a number looks off, use the form to let us know. We'll follow up within one business day.