Argentine balloon to fly to South Africa and beyond

Posted on April 7, 2017 at 9:25 pm in

Argentine balloon to fly to South Africa and beyond

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Sizing of a Solar Charging System for a QRP Beacon

Posted on April 7, 2017 at 9:18 pm in

When you run a small low power beacon like the Ultimate3S from QRP-Labs it is attractive to consider powering it from batteries with a solar panel. But how long will it last? A number of things are conspiring to make our lives as amateur radio experimenters difficult. On the one hand the cheap Chinese imports…

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Beaconing Five Modes in Twenty Minutes

Posted on April 7, 2017 at 9:10 pm in
Argo SlowHell callsign

While WSPR’ing across multiple bands (“band hopping”) has been done before, I thought it might be interesting to do five different modes on the same band. It was easier done than said! I was sitting with a customer’s QRP-Labs Ultimate3S beacon on my bench, all built up and ready to test. It was a single…

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No Sound from my SDR

Posted on April 15, 2016 at 8:39 am in

And in other news, I’m trying to play with this cute little SDR receiver (the cuteness which I am sharing with you in another post), but I’m having mega problems. Don’t get me wrong: The issue is not SDR or this cute little Rx. I own and operate a Flex-1500 which has quietly become my…

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Measuring the QRPp’s Isn’t Easy

Posted on February 9, 2016 at 9:32 am in

Interesting how a development in one area of this hobby can force a sudden change of direction to explore some new areas. I’ve been happily experimenting with my Hans Summers Ultimate 3S kit when I realised that I could band-hop and get a picture of propagation conditions updated every 30 minutes or so. Cool idea.…

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Ultimate 3 S – part 2 – drifting a bit

Posted on January 18, 2016 at 9:16 am in

I let the U3s run last night with the first LPF relay board installed (6 bands only) and hopping in sequence from 80m to 10m just to see what can happen. I’m still learning the device, she is not a trivial little kit! I added a CW ID as the last transmission. Anyways to my…

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Ultimate 3 S – part 1

Posted on January 11, 2016 at 7:52 pm in

My latest baby! I will write the full story in a few installments, from the back to the front so to speak, in other words I’ll show you the final result first before going back and showing pictures of the construction and so on. Of course I’m talking about my Hans Summers Ultimate 3S beacon…

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WSPRing is addictive

Posted on November 5, 2015 at 8:29 am in

Like the mermaid calling the sailor, this mode called WSPR seems to be calling me back every time. Circumstances pushed me out of the house into my new outside semi-underground shack which made me QRT for a while while I was painting and renovating, but the first thing I did (after making the few compulsary…

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Falklands is a mere WSPR away

Posted on June 8, 2015 at 10:55 am in

The last thing I did last night was to make peace between my laptop, my Flex-1500 SDR, and the various VAC and VSP drivers and whatever else was struggling to co-exist in the apparently too small memory of my Windows 7 computer. So can you imagine the delightful surprise I got this morning: I switched…

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Flex-1500 – Starting the SDR journey

Posted on May 31, 2015 at 9:20 am in

I might be older, but I’m very young at heart when it comes to technology. I love playing with all the latest gadgets and adopting my hobby to the emerging technologies. One example would be that I only run solid-state amplifiers (watch out for my series of articles on building my own). I also talk…

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