Download HamSphere 3.0

For beginners and everyone interested in Amateur Radio

HamSphere 3.0 provides readable signals to all continents at any time of day. Good for beginners.

Download HamSphere 4.0

For users with Basic or Advanced knowledge in Amateur Radio

HamSphere 4.0 is a virtual HF/VHF/UHF Transceiver using true shortwave simulation based on live sun spot numbers and solar flux values. It requires some basic knowledge of shortwave radio propagation (Read about the HS4 propagation model)

Installing instructions HamSphere 3.0

  • 1. Java: Make sure your PC has the latest Java from
  • 2. Microphone: HamSphere needs an active microphone connected to your computer. Headsets are preferred.
  • 3. Windows: Download the EXE installer and run it. Follow the instructions.
  • 4. Windows 8, 64-bit:You must install Java version 7, release 10 and above. Also you need to run HamSphere as Administrator. Download the JAR file, save it on your desktop, right click and Open As "Open with Java (TM) Platform SE Binary".

  • 5. Linux or Mac: JAR files are Java runtime executable files. Never unzip the jar-file even if suggested. Save the jar file intact somewhere on your computer, like the desktop and right click "open with" Java (TM) platform binary.

  • 6. Linux: Save the jar file as hamsphere.jar in your home directory. Open a root terminal window and execute java -jar hamsphere.jar
A word about firewalls: If you get white screens when you launch the HamSphere transceiver, the firewall is blocking it. HamSphere uses TCP port 80 and 8010 and it is important that the HamSphere application is allowed access to web pages via port TCP 80 and communication via TCP port 8010. In some Windows 7 and 8 installations, JAVA applications are automatically blocked in the Windows firewall and you must open the ports manually.

Installing instructions HamSphere 4.0

  • 1. Connect a microphone USB or 3.5mm jack. HamSphere won't start without a mike.
  • 2. Connect a speaker. HamSphere won't start without a speaker.
  • 3. Download HamSphere 4.0 and install
  • 4. Start HamSphere 4.0 and login.
  • 5. Click "transceiver" and wait for it to start. Please be alert to any error messages you may get.