Blog Archives

Notes on Baofeng UV-82

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This post will probably be filled in more later. As mentioned earlier on this blog my main interest is antennas and preferably short-wave ones. So it came as a surprise to me that I suddenly complemented an order for a … Continue reading

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Receive Audio on Ten-Tec Jupiter 538

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The baudline program is a useful tool for analyzing audio. First you get a waterfall presentation of the spectrum, then there is a amplitude diagram and many possibilities for selecting input source, sample frequency etc. You can find it here¬†http://www.baudline.com. … Continue reading

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Ten-Tec Jupiter 538 Monitor Volume

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The low monitor audio level is a common complaint on the Jupiter. Apparently some radio amateurs have just about enough audio feedback and are quite satisfied, while others claim it does not work (at all). I took the time to … Continue reading

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Modifying Audio on Ten-Tec Jupiter 538

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When it comes to rigs I have found “home” in the way of a Ten-Tec Jupiter 538. It is a fantastic rig in many aspects but what I find most pleasing compared to every other rig I have tried over … Continue reading

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Rigs

My first attempts at QRP was with a homebuilt one-transistor transmitter “many years, many, many years ago”. I didn’t measure its output power, but it can’t have been many tenths of a watt. That was not a success – due … Continue reading

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The HSQB — A Half-Square Beam

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Spurred by the good performance from my omni-directional verticals and specially the bidirectional half-square I could not stop pondering on a beam version of the latter. The half-square had proven to be a very nice companion. One should not look … Continue reading

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Generic Antenna Patterns

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There’s more to antennas than meet the eye. Every antenna type has its own typical performance. One can fathom antennas by their¬†radiation pattern. This pattern can be divided into mainly two categories. And the radiation pattern is governed not only … Continue reading

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