700km Knobless Wonder - Knobless Wonder 2 x QRP 40m SSB contact

919 views · Published 28 October 2013 · 3:50 · Indexed 4 November 2026

Channel: Amateur Radio VK3YE · 2013 · Science & Technology

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A contact with John VK2ASU using a homebrew 'Knobless Wonder' 7.160 MHz SSB direct conversion transceiver. The furthest known contact between two 'Knobless Wonders'. Readability was better than sounds through the camera. Both transceivers used a BD139 as the final transistor, putting out approx 1 - 2 watts. More details on the rig are at vk3ye dot com.

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