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 »