I realised recently that I’ve barely touched this blog for most of 2016 and I suppose that’s because I’ve not done a massive amount of radio this year. My low powered QRSS/WSPR transmitter continues to run mostly 24/7 on various bands (on 30m at time of writing) and my radio high point of the year […]
Category: Construction
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 every stage.
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 frame with space at the end for a calibration cycle. You should note that to […]
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 leave the transmitter running on one band/mode for a month or so at a time. […]
20m QRSS warmup
I’ve had this screenshot sitting on my desktop for a while because I think it’s quite interesting. It shows my 20m QRSS signal from when I switched the transmitter on, for a period of nearly four hours. You can see how it takes almost an hour to warm up and calibrate itself to the correct […]
Putting up a 40m vertical for the winter
Last weekend, following the Martello Tower Group DXpedition to Herm Island, I put up a 40m vertical in my back garden. Not just any 40m vertical, it’s exactly the same one we used to great success on Herm. It’s made up of a 12m Spiderpole with a 1/4 wave vertical element and around 30 radials. […]
Winding coils and building filters
Some time ago I posted saying that I’ve been winding lots of coils and since then I also mentioned that I started work on a set of 5B4AGN filters and some of those was shown here. Since then, I’ve completed a full set of low pass filters for my WSPR/QRSS transmitter and here they all […]
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 firmware and I assisted with beta testing the 2.02 firmware. While testing it, I made […]
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 where I’ve been captured. A few weeks ago I heard about a new QRSS kit […]
A productive radio day
Today has been a day for doing things. I’ve only had one QSO on the wireless but I’ve spent a lot of time doing radio related stuff. I started off this morning by getting all the bits together for my set of 5B4AGN bandpass filters. My first attempt to wind one of the toroids was […]
