kQSO Open kQSO CSEN

Ham radio log · web · Android · iOS

The whole QSO on one line.

Type what you hear, and kQSO tells the call, report, serial, locator and reference apart by their shape. No fields to tab through. On a summit, in a contest or through a satellite.

Free, no ads, no account. Your logs stay on your device.

SOTA OE/SB-25720m SSB
DD2TC 55 T57
DD2TC CALL 55 RST 57 TX-RST
⏎ saved · QSO 12

What kQSO does

Its own keyboard

Alphabetical, with big keys that work with gloves. The system keyboard and a hardware keyboard work too, with F keys for the macros.

No signal needed

Logging, the map, statistics, the callsign database and nearby references all work offline. The network is only for Wavelog and the chat.

Nothing gets lost

Every QSO is written at once. If the phone crashes or restarts, the QSO you were typing comes back.

Callsign database

After two characters it offers calls and their locator. The VHF part knows the bands a station is usually on, and a dupe shows at once.

Map and statistics

Worked locators on a map, QSOs and points per hour, large squares, the top 10. Optionally a rain radar for rain scatter.

Export and Wavelog

ADIF for SOTA, POTA, WWFF and the others, EDI for VHF contests (a file per band), and a push to your own Wavelog.

E-ink and dark mode

A display mode for e-ink screens (tuned on the Mudita Kompakt), light and dark themes. English and Czech by the system language.

Your data

No account, no server holding your logs, no tracking. Free software under GPL-3.0, the source is on GitHub.

What it looks like

Logging in a VHF contest with the kQSO keyboard
Logging: the line on top, what kQSO recognized below it, the keyboard at the bottom.
A tablet in landscape with a hardware keyboard and the contest panel
A tablet in a contest: recent QSOs and the contest panel with the serial, rate and ODX.
The log list
The log list: contests, an activation, a satellite pass.
The map of worked locators
Worked locators from a Field Day, offline.
The ON4KST chat in a contest log
The ON4KST chat right in the contest log.
The QSO list with points
The QSO list with points and a search.

Where it runs

The same app and the same version (1.18) everywhere. Pick by your device.

Browser

Computer, tablet or phone. After the first visit it works offline. On a computer, Chrome or Edge connect a radio by cable.

Open kqso.ok1cdj.com

Android

From Google Play, or the APK from GitHub for devices without the store (such as the Mudita Kompakt). Either updates the other.

iPhone and iPad

From the App Store. The app does the IC-705 over Bluetooth, the microphone for the CW decoder and the ON4KST chat directly.

App Store

New to kQSO? The First steps walk through a VHF contest and a SOTA activation. The whole manual with pictures is in the app too (Settings → About).