Category Archives: Radio

8S7GL

            The coming weekend 16th to 18th of August I am looking forward to a large mass of amateur radio fun. Together with SM7PXS and SM7XWM I will operate 8S7GL from lighthouse Garpen during the International Lighthouse Lightship Weekend. This operation … Continue reading

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My first tube TX is functional

Yet a milestone in my life as a radio amateur has been passed: A few days ago I fine tuned my first ever built tube TX for 80m. Great fun! I already have plans for more tube projects 🙂 The … Continue reading

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Loop antenna up

Last few weekends I have been putting up a horizontal loop, ” sky wire”, about 70m long. Today I brought in a 600 ohm ladder line from the loop to the radio, and I was able to tune all HF-bands … Continue reading

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Ice Cold

February 5th, of course it should be cold. It has been a wonderful day, sunshine and no wind. Still cold -9C during the day, but -23C at 4am this morning. The temperature calls for a day in the shack, but … Continue reading

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S-Match completed

To night I finished assembling the S-Match that we have been working on in this autumns education project in our local radio club. It is not really difficult or time-consuming to build the S-match, I have just been busy with … Continue reading

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New Toy Tested

A couple of weeks ago a good ham friend of mine offered to sell me his Elecraft KX1 transceiver. Being a weak soul, I could not withstand the temptation to own yet another toy. As I told earlier I have … Continue reading

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Saturday, half-way through the weekend.

For the first time in a long time I have been without duties or arrangements for a weekend. Something that paid off in some relaxing activities. Already yesterday Friday afternoon I went to my friend SM7PXS to drop off the … Continue reading

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Solder melted

By coincidence I found an interesting program on the internet today, DIY Layout Creator, that I wanted to try out. Suitably I had the switching logic for the TX/RX switch that I prototyped solderless yesterday and a piece of veroboard … Continue reading

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Switch circuit ready to build… I hope…

Tonight I took time to sit down and think about how to solve the logic to control the TX/RX diode switch for my KRAS transceiver. My idea was that I wanted to have one logic input and two outputs, where … Continue reading

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RX/TX Switch working (without logic)

This evening I constructed the RX/TX switch ugly style. At first it did not at all work the receiver was almost deaf taking the antenna signal through the switch… what was wrong? It took some trouble shooting before I realized … Continue reading

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