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A very simple receiver


With this very simple receiver, many radio amateur stations can be heard with a wire antenna of 5 meters. The receiver is tested on 80, 40, 30 and 20 meters
post 30 Mar 2024
A very simple receiver

Antennas Receiving Links

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Installing and Running Spectrum Lab as a VLF Receiver
A PC 16 bit sound card microphone input detects small voltages at frequencies between a few Hz and 20 kHz. Essentially an antenna plugged into the microphone socket makes the sound card into a Very Low Frequency radio receiver

Low band receive antennas
This experiment was quite a bit of fun on a rainy Sunday. Very educational, especially thinking about the transformer feed and how I might use it in a transmitting version

Noise suppression with X-phase II
This device, similar devices are known as QRM eliminators or noise killers, makes it possible

Shielded Loop antenna
A single-turn small loop antenna comprised of a hollow conductor arranged in a closed shape

Preselettore di antenna per onde lunghe 100-500 KHZ
Il pregio di questo preselettore seriale e' quello di avere una elevata selettivita', di conseguenza lo rende adatto vista la gamma di frequenza usata)alla ricezione del CW e dei radiofari NDB


Noise suppression with X-phase II

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

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

Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo