RF Path & Repeater Site Planner

K5NWZ.com · RF Path & Repeater Site Planner

TERRAIN + EARTH CURVELINE OF SIGHTFRESNEL ZONE 1

loading terrain…

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Drop two pins on the map

Click anywhere to place station A, then click again for station B. The terrain between them is pulled automatically.

COVERAGE MAP

RECEIVERS RANGE

WHERE SHOULD A REPEATER GO?

LINK BUDGET

Hover any dot on the map for details. Click it to use it as point A or B, or click empty map to drop a test pin anywhere.

POINT A

ANT HEIGHTft

ANT SITE

POINT B

ANT HEIGHTft

ANT SITE

RADIO

RADIO / PRESET FREQ MHz TX POWER dBm SF BW kHz ANT GAIN A dBi ANT GAIN B dBi CABLE LOSS / SIDE dB ENVIRONMENT EXTRA LOSS dB EARTH k-FACTOR

RF Path & Repeater Site Planner © 2026 K5NWZ.com · built for the Northern Colorado mesh and ham radio community. Live station data from K5NWZ’s own receivers and feeds. Please link to K5NWZ.com when you share it. Anonymous usage counts (no names or accounts) help K5NWZ improve this tool.

Terrain + clutter model. Clutter (trees, buildings) is an estimate set by ENVIRONMENT and EXTRA LOSS. Elevation from USGS 3DEP / SRTM (AWS Terrain Tiles, ~7–10 m in the US). Trees, buildings and multipath are not included, so treat CLEAR as “terrain allows it” and BLOCKED as “terrain is in the way” — diffraction often still gets LoRa through a single ridge. Sensitivity uses Semtech SNR limits with a 6 dB noise figure.