Field-first RF propagation

Radio propagation and link planning built for real terrain.

Quick diffraction sketches, site-to-site backhaul links, and full Longley-Rice coverage maps—pre-loaded with standard wildland kits, actual mast heights, and real feedline losses so you aren't doing math on the back of an envelope.

Propagation

Point-to-Point Links

Path profiles & true Fresnel clearance

Run bidirectional link studies between two peaks before hauling gear up a mountain road. Check ground clearance, 1st Fresnel zone encroachment, and knife-edge ridge diffraction. Outputs give you magnetic headings to aim your yagi and calculate link margins both ways.

Ridge & Valley Coverage

Area coverage that respects canyon walls & timber

Choose between fast Deygout multi-edge diffraction for quick briefing sketches or full Longley-Rice (ITM) for verified signal levels. Elevation models step down to 10-meter 3DEP data to catch sharp ridgelines, with NLCD canopy heights so trees don't get treated like open air.

Spot / Corridor Checks

Pin drops, building shadows, and route ribbons

Drop a pin on a proposed spike camp or ICP to check reception down in the trees or behind metal warehouse walls using 1-meter lidar and structural footprint models. Draw travel corridors to spot convoy dead zones before rigs roll out.

Hardware & link budgets

You pick the hardware. It handles the link budget.

No manual decibel conversions or napkin math.

Plug-and-play kit defaults Native presets for standard configurations (NFES 4312 Command, 4248 Logistics Hub, 4281 Crossband, and 4370 Air Links) automatically populate power, default mast heights, and cable runs.
True dual-band modeling VHF repeaters and UHF links don't share antennas or coax runs. Each band maintains independent antenna patterns, mast heights, and line losses calculated at their specific operating frequencies.
Field-realistic receivers Check coverage against how people actually listen—from a belt-worn portable with body loss at 2 meters AGL to a vehicle mobile rig or an aircraft deck.

Signal margin key

Reading the map: Margin, not guarantees

Coverage overlays reflect available fade margin (received signal above squelch sensitivity), not a theoretical promise.

Green · 10+ dB margin
Solid copy with enough cushion for wet canopy and normal terrain bounce.
Amber · 0–10 dB margin
Above receiver threshold, but fringe. Good for a high-gain mobile rig; expect scratchy copy on a portable.
Clear / Purple · Below threshold
Geometric terrain shadow or blocked path. Clear mode keeps true dead zones transparent against the USGS topo.

Map tools

Interactive map features

Visual workflow tools that make the map usable at the desk and in the briefing tent.

3D terrain draping

Pitch and rotate the map into full 3D to see signal drape across ridges and verify hop paths through mountain passes.

A/B swipe compare

Put two prospective repeater sites on a split screen and drag a slider to see which peak covers the dead drainage better.

Field test verification

Compare theoretical maps directly against real radio checks recorded from the field.

Ready to map out your system?

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