Newsletter October 15th

We'd like to ask you a couple of questions, to better understand the needs of a modern HAM radio operator. Please follow the link below, it'll take just a couple of minutes.


Yuri Pavlov (UT4LW) has launched his own website where he'll publish new releases and updates of the SDC. There you'll find lots of useful information, a user manual, and video demos.


This summer we've released the MB1 Utility 1.1.3 with a fix of the fan control system. Before the installation of the 1.1.3 version, you should manually delete the 1.1.2 version.

MB1 Utility

The list of third-party software with TCI support continues to grow. From now on N4PY supports TCI.


Until the end of the next month (November 2020) we will release ExpertSDR2 1.3.1 Update 7 for all our radios. This release will contain new firmware updates for SunSDR2 PRO and SunSDR2 DX transceivers.


Until the end of October, we'll begin dispatches of the external automatic antenna tuner for the SunSDR2 DX. In the meantime here is the sneak peek. More information about the tuner will be published closer to the release.

It works on HF frequencies and allows to match a load impedance with SWR up to 5 (approximate impedance range from 15 till 300 Ohm), with the 50 Ohm transmitter impedance.

  • Operating temperature -0°С...+55°С
  • Operating frequency range 0.1...30 MHz
  • Max input power ~120 W

ExpertSDR3 news
For the development of the ExpertSDR3 we decided to move to a new generation of Qt development environment - Qt6. You can learn more about it in the earlier released video "Future of ExpertSDR" (link below).
The first alpha version of Qt6 was released last week (a month later than planned). So now our programmer finally has an opportunity to begin the adaptation of the existing code base of the ExpertSDR3 to the requirements of Qt6.
So far we've tested graphics IPs, for example, to display panorama on Windows the ExpertSDR3 uses DirectX and it works way better than OpenGL (which was used earlier with ExpertSDR2). From now on your GPU (video card) will render panorama, which significantly lessens CPU usage. Also, it'll allow Windows users to work with ExpertSDR3 right out of the box, without the installation of additional video drivers.

Future of ExpertSDR

Expert Electronics