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A modern console for the Hermes Lite 2

Kainos is free, open-source SDR software for Windows. Everything you know from Thetis, with a clean dark layout and the tools you'd normally bolt on — FreeDV RADE, RTTY, CW, spots and KiwiSDR — built right in.

Windows 10 / 11, 64-bitGPL-3.0Installs alongside Thetis
Kainos — 40 m LSB · 3D panadapter · DX & POTA spots
Kainos main window on 40 metres: the 3D stacked-trace panadapter above a waterfall, a VFO flag at 7.270 MHz, the left button column, and the right-hand column with VFO, analog meter, band, RX and live POTA spots.
Freeand open source, GPL-3.0
0virtual audio cables needed for RADE, RTTY or CW
15+built-in tools Thetis users usually add on
Side by sidewith Thetis — your settings come along
Slice flags

Tune from the panadapter

Each VFO gets a see-through flag with antenna, filter, DSP, mode, frequency and an S-meter. Roll the mouse wheel over a digit to tune by that digit, click the frequency to type one, click TX to pick the transmit VFO.

  • Drag it anywhere so spots along the top stay visible, or pin it and shrink it to one line.
  • Tabs under the flag open its audio, DSP, mode, RIT/XIT, VAC and FreeDV controls.
  • Hear VFO B in split — LISTEN puts a second receiver on it, so you hear the pileup and the DX together.
Kainos panadapter with POTA spot tags and US flags along the top, a VFO flag at 7.270 MHz LSB, and a busy 40 m waterfall below.
Your column, your order

Turn on only what you use

The right-hand column is a set of tabs you switch on and off and drag into your own order. Compact view tucks the side columns into the window's edges until you point at them.

VFOVFO SyncMetersBandRXTXPAEQKainos AudioFreeDVMemorySpotsKiwiAudio Scope
The Kainos right-hand column with pill-shaped tab toggles and the KIWI tab open, listing nearby KiwiSDR receivers by distance.
Coming from Thetis?

Keep Thetis. Try Kainos.

Kainos installs and runs separately, so both can live on the same PC. On first run it offers to copy your Thetis databases, meters, skins and cmASIO settings — your Thetis install is never touched.

Your logger still works

Kainos identifies itself as Thetis to TCI and TCP CAT clients, so logging and contest software that supports Thetis keeps working.

Your skins still work

Thetis meter skins work in Kainos. The Classic look is one switch away in Setup > Appearance > Kainos.

Separate settings

Kainos keeps its own settings folder and registry key. Run whichever you like — just one at a time with the radio.

73 de K7JUS

Get on the air with Kainos

One installer. Updates are announced in the app with release notes, and your settings come with you.