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Monthly Archives: June 2015
UK Foundation Licence Power Limit
When I progressed through the licence system over a decade ago I was taught that the foundation power limit referred to power measured at the radio, not the antenna. This was different to the other licence classes which specified power … Continue reading
Amplifier PTT Buffer Schematic
I’ve been keying my KW1000 linear using a relay to buffer the FT847. The FT847 closed a 12V circuit across the relay and the relay in turn keyed whatever voltage/current the linear requires. The relay in the KW1000 is old, large … Continue reading
Simple Fan Dipole
After starting life as a fan dipole, my home antenna was later converted into a single 40m dipole due to unwanted interaction between the bands (at the time 40/30m). Recently, the need to operate multiple bands made me reconsider my … Continue reading