Second coming

摘要

Ten-Tec launched the Orion HF transceiver in 2003 as a high performance radio, setting the state of the art for close-in dynamic range. The company has now released the Orion II with a number of enhancements. Ten-Tec radios are invariably designed for good RF performance and I have measured five of their models. In my league table of measured performance based on about 60 radios, and ordered by close-in dynamic range, four Ten-Tec models feature in the top six with the Orion holding the top position. Much of this is down to the architecture focusing on the amateur bands only rather than wideband general coverage.