Category Archives: WSPR

Video of the ten minute multi QRPp mode transmission

After my entry a few days ago, I’ve made a video of my Hans Summers Ultimate 3S transmitter going through all four modes in a single ten minute frame.  It’s annotated with comments along the way describing what’s happening at … Continue reading

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Running four QRPp modes in a ten minute frame

Over the last month or so I’ve been doing some experimenting using a newly built Hans Summers Ultimate 3S transmitter fitted with the new oven controlled crystal oscillator and I’m now running four different modes in a single ten minute … Continue reading

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Building a QRP Labs OCXO

I’ve not posted much this year because I’ve not been doing much new stuff. I’m still messing around with the very low power modes and enjoying that a lot. I’m transmitting WSPR and QRSS all the time and tend to … Continue reading

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I’m not dead!

I know I’ve not updated this blog for some months but don’t panic, I’m not actually dead! Although I’ve not done much operating this year, I have still been playing radio.  I’ve been melting a lot of solder building WSPR … Continue reading

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A week of very low power 10m WSPR

Last Sunday I tweaked my Ultimate 2 transmitter to give me some power out on 10m and I managed to persuade it to run about 80-100mW.  I’m going to experiment with a higher voltage for perhaps a little more power … Continue reading

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A World First – Experiments on the 60m (5 MHz) band with QRSS

The 60m band is fairly new amateur radio allocation, first introduced in 2002 but only to a few countries such as the United Kingdom, Finland, Denmark, the USA, Ireland, Iceland and Norway.  I had an experimental Notice of Variation for … Continue reading

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Running WSPR and QRSS [almost] at the same time

Last month I mentioned that I’d bought a new kit, the “Ultimate 2” transmitter from Hans Summers.  I hooked it up with a GPS module and it almost worked perfectly.  There were a couple of issues with 2.01 of the … Continue reading

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