Category Archives: QRSS / WSPR / QRP

Revisiting the LDF5-50 MagLoop

Posted on July 23, 2018 by g4hsk

I’ve had a lot of fun using the LDF5-50 based MagLoop. By adding and swapping one or more high-voltage doorknob style capacitors it’s been possible to cover the 80m <> 20m bands. The only two negative things being that the … Continue reading →

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Revisiting the LDF4-50 MagLoop

Posted on May 7, 2018 by g4hsk

Today I decided to enjoy the fine weather and do some further outdoor tests with the LDF4-50 MagLoop. I constructed this loop last year. Up until now this loop hasn’t really been used, all my MagLoop experiments have been done … Continue reading →

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LDF5-50 MagLoop on 80m

Posted on February 8, 2018 by g4hsk

When I first made this MagLoop my goal was to be able to use it on the 40m band, and this was achieved. Recently I began to wonder if it might also work on 80m. So the MagLoop was setup … Continue reading →

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An SDR based QRSS Grabber

Posted on January 30, 2018 by g4hsk

About a year ago I purchased the NooElec Ham It Up v1.3 bare bones HF Up-converter (HFU) to use with their NeSDR SMArt dongle. The plan at that time was to get an SDR-based QRSS Grabber running online 24/7. For … Continue reading →

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QRPp WSPR and FSKCW tests on 40m using the U3

Posted on January 22, 2017 by g4hsk

I recently built the QRP-Labs LPF switching board plus a couple of extra filters for 80m and 40m. I’d had these kits gathering dust for probably 12 months plus. Other projects had taken priority and I’d not really run any … Continue reading →

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