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Category Archives: QRSS / WSPR / QRP
Revisiting the LDF5-50 MagLoop
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
Revisiting the LDF4-50 MagLoop
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
LDF5-50 MagLoop on 80m
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
Posted in Blog, Magnetic Loops, QRSS / WSPR / QRP
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An SDR based QRSS Grabber
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
Posted in Blog, QRSS / WSPR / QRP, SDR
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QRPp WSPR and FSKCW tests on 40m using the U3
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
Posted in Blog, QRSS / WSPR / QRP
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ZLPLL
I built my 2m transverter with the intention of using it primarily for EME (JT65), driving either my 2m PA or at some point in the future as the IF for one or more microwave transverters. To ensure that I … Continue reading
Posted in 23cms, 2M, 3cms, Anglian TVTR, Blog, EME, GHz_Bands, QRSS / WSPR / QRP
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QRSS – Ultimate3 MEPT
Having set up an Argo based Grabber to support some QRSS tests I was soon keen to see what I could do with a relatively simple very low power transmitter, or Manned Experimental Propagation Transmitter (MEPT), and my W3DZZ inverted-V … Continue reading
Posted in Blog, QRSS / WSPR / QRP
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DigiMode Interface
The following photos show the homebrew interface. More details to follow…
Posted in Blog, QRSS / WSPR / QRP
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G4HSK 