16 tools · Free · No signup

Complete toolkit for ham radio operators.

Pro calculators, ADIF analyzer, QSL generator, morse translator, IARU band plan, Q-codes table — all client-side, no data sent to any server.

📍Locator 🧭Distance 🔍Callsign → DXCC 📡Antennas 📊ADIF Analyzer 🎴QSL Generator 📻Morse 📡Band plan
📍

Maidenhead locator

Convert between geographic coordinates and 6-digit grid square. Browser geolocation supported.

Enter coordinates or a locator…
💎
IN THE APP HamOrbit calculates your locator automatically when you enter your QTH in settings, and shows great-circle distance + azimuth to every DX in real time as you log a QSO.
⬇ Download
🧭

Distance & azimuth

Great-circle between two Maidenhead locators. Calculates short and long path + compass bearing.

Enter two locators…
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IN THE APP HamOrbit draws the great-circle path on an interactive world map and shows your log’s QSO heatmap with lines from your QTH to every DXCC.
⬇ Download
🔍

Callsign → DXCC

Country, continent, CQ and ITU zones from the prefix. Local database with 284 DXCC entities.

Enter a callsign (e.g. EA4FMM)…
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IN THE APP Full lookup with integrated QRZ.com and HamQTH (Plus tier): name, address, email, antenna, biography and operator photo — not just DXCC.
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📡

Antenna calculator

Lengths for λ/2 dipole, λ/4 vertical and full-wave with velocity factor.

Enter a frequency…
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IN THE APP 8 pro calculators: dipole, Yagi (with element calc), coax trap, balun, MPE exposure (RF safety), unit converter and more.
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⚡

Coax loss

Attenuation in dB by cable, frequency and length. 9 cables (RG-58 to Heliax 1/2").

Choose cable, frequency and length…
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IN THE APP Compare multiple cables on a chart (loss vs freq), save your antenna setups and automatically compute loss on every HF band.
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🌡

SWR & return loss

Calculate SWR, return loss, reflection coefficient and efficiency from forward/reflected power or from impedance.

Enter powers or impedance…
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IN THE APP Connect your antenna analyzer over the serial port and HamOrbit records full SWR sweeps with per-band charts.
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📐

Free-space path loss

Free-space loss for VHF/UHF/microwave links — useful for satellites, EME, link budgets.

Enter frequency, distance and power…
💎
IN THE APP The HamOrbit Satellites panel computes automatic link budgets for every pass using real SGP4, not estimates.
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🔋

Power converter

Watts ↔ dBm ↔ µV (over 50Ω) ↔ S-units (HF reference).

Enter a value…
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IN THE APP Converter + RF exposure (MPE) calculation per FCC/CEPT rules for your installation.
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📡

IARU Region 1 band plan

Quick reference of HF/VHF/UHF amateur bands for Spain and Europe (IARU Region 1).

💎
IN THE APP Complete IARU R1/R2/R3 plan with per-sub-band mode allocation, automatic band detection from frequency, and logbook filters by band.
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🌅

Greyline / sunrise calculator

Sunrise and sunset times for any locator. Crucial for low-band (LF/MF) DX during greyline.

Enter locator and date…
💎
IN THE APP Real-time greyline map over the world map. See which parts of the world are in greyline RIGHT NOW to chase DX on 160m/80m.
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🎯

RST report generator

Build a valid RST report with explanation of each component: Readability, Strength, Tone.

Select R/S/T and mode…
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IN THE APP Smart default RST based on mode + keyboard shortcuts: press "5" for 599, "F8" for 59. Logbook with automatic mode detection from frequency.
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📻

Morse translator

Text ↔ morse code with audio playback (Web Audio API). Adjustable WPM.

Pulsa "Text → Morse"…
Enter morse to decode…
💎
IN THE APP CW reader + sender with progressive learning curve (Koch method), keyboard sending and decoding from receiver audio.
⬇ Download
📋

Q-codes table

42 essential Q-codes for operating. Instant search by code or meaning.

💎
IN THE APP Q-codes table integrated in the QSO entry: type Q in the comment field → autocomplete with description.
⬇ Download
🔤

NATO phonetic alphabet

ITU international standard. Useful for spelling callsigns over SSB in difficult conditions.

Type above to spell…
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IN THE APP Printable QSL cards with phonetic alphabet on the back for new operators. Useful when sending QSLs to stations learning ham English.
⬇ Download
📊

ADIF Analyzer

Drop your .adi or .adif file and get instant statistics. Supports up to 50,000 QSOs. Zero data sent to any server.

📁

Drop your ADIF file here

Or click to select. 100% processed in your browser.

📂 Choose .adi or .adif file
works offline · any standard ADIF format
📄 archivo.adi
—Total QSOs
—Unique countries
—Bands operated
—Confirmed

📊 Top bands

🎚 Top modes

🌍 Top countries

📅 By year

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IN THE APP Full analytics: world-map heatmap, great-circle lines from your QTH, monthly timeline, top 15 countries, DXCC awards with visual progress, sparklines.
⬇ Download
🎴

QSL Generator (demo)

Generate a professional QSL card in 1 theme. The desktop app has 6 themes and exports without watermark.

🚧 Demo · 1 theme with watermark. HamOrbit Desktop: 6 polished themes, 1280×720 without watermark, full-log batch export and world-map background.
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IN THE APP 6 visual themes (Emerald Green, Deep Blue, Galactic Purple, Sunset, Midnight, Vintage Pink), batch export of up to 500 QSOs and a world-map background template.
⬇ Download
Ready for more

Take the full toolkit to your PC.

HamOrbit Desktop has all this plus full logbook, SGP4 satellites, DXCC awards, contest calendar, live DX cluster and propagation with live SFI/A/K. Free for Windows.

⬇ Download HamOrbit v1.0 (45 MB) See all features

No account · No telemetry · Works offline · Windows 10/11