Quick video monitoring GB3ANG beacon on 70.020MHz in Scotland from my QTH here in Newcastle upon Tyne – a tad over 113 miles away.
Both the receiver and transmitter stages are now complete, apart from the S-Meter driver board which is not really key at this stage. I can see the finish line and perfect timing for the 2018 Es propagation season – more to follow over the Easter weekend, I might even get some of the boards wired… Read More »
Receiver section under test, GB3ANG beacon in Dundee weak but readable with homebrew 3 element Yagi 5 foot above ground level – going to brave the rain and try and get the antenna another 10 feet in the air! Here is a short video of the receiver in action – messy lash up for testing… Read More »
Back on to the homebrew 70MHz SSB transceiver project having been consumed with work and stuck in a “over thinking” loop re-designing the 70MHz transceiver receive front end module I have now completed a working unit – third attempt! So, to cover off my initial attempts I was stuck with problems like little or no… Read More »
I have designed an elaborate DC Protection and Distribution unit for the 70MHz SSB transceiver project, the purpose of this module is to provide two stage reverse polarity protection, power on/off switching, filter and a switched DC bus for transmit and receive. I have designed the 70MHz linear power amplifier (yet to be finished) to provide… Read More »
I was looking for a local supplier of the Adafruit SI5351 clock generator module and I was surprised to find a link to Tandy, brought back memories from my childhood spending hours gazing at all of the unaffordable gadgets and components, wondering what i could buy with my paper round money. Here is a link… Read More »
Well, having taken a pause on the build of the big rig, the HF642 I am taking a slight diversion for a few months and designing a single band, 70MHz SSB transceiver. Keep checking back for progress info on both projects, I am easily distracted so hopefully this will not turn into two expensive half-baked… Read More »
Starting to look like a radio… The front panel assembly has started, next stage is to wire all of the controls, meter and display. The black bezel was formed by using a piece of clear perspex sheet with the meter and display windows masked off then spray painted using car bumper spray paint on the… Read More »
Sitting in Newcastle airport for my business trip to Ireland writing this article reflecting on what I have achieved so far with the homebrew SSB transceiver, so much inspiration from other like-minded HAM’s around the world such as Pete Juliano N6QW, Andy G6LBQ, Dave G4AON to name but a few – I could go on… Read More »
Here is a short video showing the modified W7ZOI s-meter driver in operation.