Category Archives: WSPR

Accurate time keeping on an Apple Mac or Raspberry Pi for WSPR/JT65/JT9/FT8

If you use any of the data modes for QSOs such as JT65, JT9, or FT8 or if you operate using WSPR then you’ll know how important it is that your computer clock is accurate.  Anything more than a couple … Continue reading

Posted in Amateur radio, FT8, JT65, JT9, Raspberry Pi, WSPR | Tagged , , , , , | Leave a comment

A detailed look at three different methods of operating the low power WSPR mode

There seems to have been an upsurge in people operating WSPR recently.  Barely a day goes by (sometimes barely an hour) without someone posting a map of where their signals have been received on Twitter.  When I first started experimenting … Continue reading

Posted in Amateur radio, Construction, Data, HF, WSPR | Tagged , , , , | 7 Comments

What can be achieved in twelve hours of 20m JT65/JT9?

WSPR is great, I enjoy running WSPR and seeing how far I can transmit using very low power but there are a couple of drawbacks.  I appreciate this will sound as though I’m knocking WSPR but trust me, I’m really not. … Continue reading

Posted in Amateur radio, Data, HF, JT65, JT9, QSO365, WSPR | Tagged , , , | Leave a comment

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

Posted in Amateur radio, Construction, CW, Data, HF, QRSS, WSPR | Tagged , , , , | Leave a comment

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

Posted in Amateur radio, Construction, CW, Data, HF, QRSS, WSPR | Tagged , , , , | 2 Comments

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

Posted in Amateur radio, FM, HF, QRSS, VHF, WSPR | Leave a comment