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Mast head Low noise amplifier
Mast head low noise amplifier on the stacks and I followed Paul, G4CCZ's ideas
post 19 Feb 2024
Preamplifiers Links →
Wideband active loop antenna 3-30 MHz
The antenna should be used with an amplifier since the loop current is very small
Yaesu FT 847 70mhz pre-aplifier
FT-847 has a build in preamp, but it seems to have poor gain at 70mhz,so I decided to add another preamplifier stage
Designing Op Amp Audio PreAmplifiers
Operational amplifiers are simple to use, inexpensive and offer a very large amount of gain
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The antenna should be used with an amplifier since the loop current is very small
FT-847 has a build in preamp, but it seems to have poor gain at 70mhz,so I decided to add another preamplifier stage
Operational amplifiers are simple to use, inexpensive and offer a very large amount of gain
Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible
The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna
Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo