Category Archives: WSPR

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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One hour of 40m WSPR on a Saturday evening

This is especially satisfying for a couple of reasons.  It’s the first time I’ve reached VK using the Ultimate 2 kit and a simple wire aerial.  I’ve managed it on 20m using the Hexbeam but not with my random length … Continue reading

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Two hours of 20m WSPR on a Sunday evening

Power output: Somewhere between 150mW and 200mW. Coax: 30m RG213 Aerial: Broadband Hexbeam at 35ft AGL beaming pointing west Best DX: KB9AMG at 6,378 km (3,963 miles) at 31,890 km/Watt

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One hour of 30m WSPR on a Sunday afternoon

Power output: Somewhere between 150mW and 200mW. Coax: 20m RG213 ATU: SGC Smartuner 8m 450 ohm open feeder Approx 65ft doublet, sloping E-W, 30ft AGL at the east end, 20ft at the west end Best DX: OE6WSF at 1,185 km … Continue reading

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Running WSPR (and QRSS) at 200mW

I’ve written a fair bit about WSPR in the past and posted reports of where my signal has been heard using just five watts output.  I’ve also written about QRSS including details of the transmitters I’ve built and shown reports of … Continue reading

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