Category Archives: WSPR

If you use WSJT-X for FT8/WSPR/JTx etc, you should upgrade to V2.0.0 as soon as possible

WSJT-X version 2.0.0 has been released and everyone who uses this software for any data modes should update as soon as possible.  This new version is NOT compatible with previous versions so everyone is encouraged to upgrade to 2.0.0 as … Continue reading

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

Accurate time keeping on an Apple Mac running macOS Mojave

When running data modes such as the very popular FT8, it’s important to keep your computer clock accurate because if it’s more than a couple of seconds out then you won’t be able to decode anyone, they won’t be able … Continue reading

Posted in Amateur radio, Apple Mac, FT8, JT65, WSPR | Tagged , , , , , , | Leave a comment

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, Apple Mac, FT8, JT65, JT9, Raspberry Pi, WSPR | Tagged , , , , , , , | 1 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