Monday, February 22, 2010

New Digital Mode

ROS is a brand-new Amateur Radio digital spread spectrum mode with the first HF contact taken place on Thursday February 18, 2010

The first contact with ROS took place on February 18, 2010, at 20:56 UTC from Vitoria in Spain to the University of Twente in the Netherlands covering a distance of 1265 Km on 7.065 MHz.
The HF frequencies currently used for ROS are USB 3.600, 7.053, 14.101, 28.300 MHz

To use ROS you just need your HF radio, a PC and a basic PC sound card interface.

The software for ROS is free. You can download it along with the User Guide and Introduction at

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