SectorMap: Coverage Sectors

Julio Canchi

In-app purchases

About this app

Draw coverage sectors on the map in seconds. Enter the coordinates, azimuth, beamwidth and radius — SectorMap automatically renders the antenna's coverage sector with true geodesic accuracy.

Built for analysts, telecom engineers, forensic experts and investigators who work with antenna records and need to visualize cell sectors in the field or at the office, without desktop software.

HOW IT WORKS

1. Enter latitude, longitude, azimuth, beamwidth and radius.
2. The sector is drawn instantly on the map.
3. Add sectors with their own color and label, each with its azimuth line.

FREE VERSION

• Up to 5 sectors on the map at once, with automatic colors
• Manual entry of single cells or several at a time (great for three-sector sites)
• Import preview from CSV, Excel or pasted text
• Dashed azimuth line on every sector, to read the antenna's direction at a glance
• Color street map, satellite, light and dark basemaps
• Coordinates with decimal point or comma
• English and Spanish interface, light and dark mode

PRO VERSION — one-time purchase, no subscriptions

• Unlimited sectors
• Full spreadsheet import (CSV and Excel, hundreds of cells at once)
• KML export, compatible with Google Earth and GIS viewers
• Offline maps: browsed areas stay available without signal, ideal for field work

SMART IMPORT

Automatically detects spreadsheet headers (English or Spanish), even with columns in a different order or metadata rows on top. Accepts comma, semicolon or tab as separator (paste cells straight from Excel), decimal point or comma, and converts km radii to meters. Duplicate cells are loaded only once.

PERFECT FOR

• Mobile network engineering and optimization (GSM, LTE, 5G)
• Forensic reports and expert testimony
• Ham radio and radio link planning
• Telecom education
• Call detail record (CDR) and antenna analysis

PRIVACY

SectorMap does not collect, store or transmit personal data. No sign-up, no location permission: you enter the coordinates. All processing happens on your device.

IMPORT FORMAT

Columns: latitude, longitude, azimuth, beamwidth, radius, name — one row per sector. Beamwidth and radius are optional (65° and 1500 m defaults).

Suggestions or feature requests? Write to us: [e-mail]

What’s new

You can now pick the color of each sector before adding it to the map. "en-US".