Thetis

Thetis 2.10.3.15

Client software for HPSDR with changes for the Apache Labs line of radios.

  • By Richie - MW0LGE
  • Open Source
  • Updated May 2, 2026
Download for Windows

About Thetis

Client software for HPSDR with changes for the Apache Labs line of radios.

What's new in 2.10.3.15

Thetis v2.10.3.14 - Release

IMPORTANT : if you are updating from a pre v2.10.3.13 version then make a backup of your database
before using this version. If you have an existing database that pre-dates v2.10.3.13 then Thetis
will pop up a message asking you to restart whilst holding down the CTRL key. Please follow the
onscreen instructions.

JTDX/WSJTX:Watch the highlight video above if you are having issues getting JTDX/WSTJX to transmit
via TCI audio

This version, v2.10.3.14, will be the last version released publicly by MW0LGE - Richard Samphire.
This repo will no longer be updated or monitored.

v2.10.3.14 - Change Log

• [add] otherbutton wave record now supported. Extra folder called 'waverecord' will store these.
Right click to open folder or via Setup->Audio->Recording. Similar to the [Record] button from
the WaveForm of old. Note:tx/rx transition will terminate recording
• [add] new simple WaveList record item so that wav files can be dragged to a list and played on
demand. No repeat via this simple list method. Note:you will not be able to use this if Thetis
is run as administrator
• [add] distance shown when hovering over a TCI spot if that spot has been provided with distance
info via the json payload
• [add] added custom TCI commands related to preamp and step attenuator
rx_step_att_enabled_ex
rx_step_att_ex (use +ve attenuation values to attenuate)
rx_preamp_att_ex (use -ve preamp values to attenuate)
• [add] added rx_nb_enable_ex TCI command to be able to select NB 1 or 2, eg. rx_nb_enable_ex:0,true,1;
will enable NB1 for rx1
• [add] added TCI commands vfo_sync_ex, vfo_swap_ex, fm_deviation_ex, agc_auto_ex, tx_filter_band_ex
• [add] TCI command that will run a cat command. run_cat_ex can be used to perform a thetis cat command
on itself.
Note, some cat command do not have a return state.
Note, one cat command at a time, one ; to terminate the TCI message
• [add] ApacheLabs ANAN-G1 model added - Rick N1GP
• [add] simple alpha slider for TCI spot background panels
• [change] TCI emulate ExpertElectroncsSDR3 selected as default for a new db/install. JTDX/WSJT-X
will now send TCI audio into Thetis with this option enabled. Turn it on if you are not getting any
TX TCI audio
• [change] ASIO Avid Driver (AVID Pro Tools) will be black listed by portaudio as it was causing
issues, see here https://discord.com/channels/1271453528656969789/1491198252593315940 . As a result …

Full release notes »

Technical details

PublisherRichie - MW0LGE
Version2.10.3.15
Release date2026-05-02
LicenseGPL-2.0
Installer typewix
Architecturex64
Package IDramdor.Thetis
Install scopeAll users

Install Thetis from the command line

Install with Windows Package Manager
winget install --id=ramdor.Thetis -e
Update to the latest version
winget upgrade --id=ramdor.Thetis -e
Uninstall
winget uninstall --id=ramdor.Thetis -e
Silent install with the offline installer
msiexec /i "Thetis-v2.10.3.15.x64.msi" /quiet /norestart
Uninstall the MSI package
msiexec /x {5E70C7B3-1E5C-4F14-B866-35E6D0B27777} /quiet

Thetis version history

2.10.3.14 Apr 19, 2026

Thetis v2.10.3.14 - Release

IMPORTANT : if you are updating from a pre v2.10.3.13 version then make a backup of your database
before using this version. If you have an existing database that pre-dates v2.10.3.13 then Thetis
will pop up a message asking you to restart whilst holding down the CTRL key. Please follow the
onscreen instructions.

JTDX/WSJTX: Watch the highlight video above if you are having issues getting JTDX/WSTJX to transmit
via TCI audio

This version, v2.10.3.14, will be the last version released publicly by MW0LGE - Richard Samphire.
This repo will no longer be updated or monitored.

v2.10.3.14 - Change Log

- [add] otherbutton wave record now supported. Extra folder called 'waverecord' will store these.
Right click to open folder or via Setup->Audio->Recording. Similar to the [Record] button from
the WaveForm of old. Note: tx/rx transition will terminate recording
- [add] new simple WaveList record item so that wav files can be dragged to a list and played on
demand. No repeat via this simple list method. Note: you will not be able to use this if Thetis
is run as administrator
- [add] distance shown when hovering over a TCI spot if that spot has been provided with distance
info via the json payload
- [add] added custom TCI commands related to preamp and step attenuator
rx_step_att_enabled_ex
rx_step_att_ex (use +ve attenuation values to attenuate)
rx_preamp_att_ex (use -ve preamp values to attenuate) …

2.10.3.10 Jun 28, 2025

Thetis v2.10.3.10 - Final Release
A couple of things cropped up in v2.10.3.9 which has warranted a quick update. Please check the change logs below.
Explore the highlights of the changes in v2.10.3.9 over on YouTube : WATCH HERE
IMPORTANT NOTE: It is worth making a backup of your DB before installing this version. It is also worth un-installing previous Thetis installs using Add/Remove Programs before installing this version.
(Note: Uninstalling via Add/Remove Programs will leave your database intact. You don't need to take any specific action beyond backing it up if required. Thetis will handle the database appropriately.)
Tip: You can always access these release notes through the button in the About box. The full change log is also available there.
If you encounter any issues, please report them on GitHub here.
Join our Discord community for test builds and more: Click Here
v2.10.3.10 - Change Log
- [add] flash new TCI spots option in Setup->Serial/Network/MidiCat->Network. Spots that are <2 mins old will flash. Hovering over them will stop them flashing
- [add] added ^o- symbols to anan meter needle, and signal text meter to represent reading source. (^-=sig o=sig avg, ^=max fft bin)
- [fix] fix rare 'object in use' error with pretty tracker (scroll bars in UI)
- [fix] fixed ChannelMaster.dll version issue. Increase version to v1.0.1.0 which should resolve install issues where ChannelMaster.dll was not being overwritten …

2.10.3.8 Dec 31, 2024

Frequently asked questions

Is Thetis free?

Yes. Thetis is free and open-source software released under the GPL-2.0 license.

What is the latest version of Thetis?

The latest version is 2.10.3.15, released on May 2, 2026.

Is it safe to download Thetis?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with e67e2e41a480b97ba3db49471b7992e1838e2df8ea5885306118e03ee3d7fb6f.

Which Windows versions does Thetis support?

Thetis runs on Windows and is available for 64-bit (x64) systems.

How do I install Thetis silently?

Run the offline installer with msiexec /i "Thetis-v2.10.3.15.x64.msi" /quiet /norestart, or install it with Windows Package Manager: winget install --id=ramdor.Thetis -e --silent.

How do I uninstall Thetis?

Open Settings › Apps › Installed apps, find Thetis and select Uninstall. From the command line, run winget uninstall --id=ramdor.Thetis -e.