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Antenna in ferrite per 40/80 metri


Il progettino, semplice semplice, prevede due BFX89, unpotenziometro e un condensatore variabile ad aria, piu' una manciatadi resistenze e condensatori
post 30 Jan 2024
Antenna in ferrite per 40/80 metri

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
Shielded-Loop antennas have some nice properties that make them desirable as portable receiving antennas

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


Ferrite-shop

Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice

Kits and Components

Amateur radio kits by Kanga US

Pcs Electronics

Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters

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Arduino CW Keyer

Arduino CW Keyer Questo progetto, dal nome yaacwk, sta per Yet Another Arduino CW Keyer

The Folded Dipole

The Folded Dipole The Folded Dipole is not used much amongst Radio amateurs, probably due to the fact that this antenna uses twice as much wire as a single-wire dipole

Rf Directional Power Meter

Rf Directional Power Meter A wide dynamic range power meter using a directional coupler, AD8307 Log Amplifier and arduino microcontroller

Wireless cw iambic memory keyer

Wireless cw iambic memory keyer- Cross country wireless cw iambic memory keyer

The Vocal Keyer

The Vocal Keyer The vocal keyer for Yaesu FT1000 MarkV

Helix 2.425 GHz band

Helix 2.425 GHz band Broad bandwidth in the 2.425GHz band>

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

Bazooka Antenna Calculator

Bazooka Antenna Calculator Programma caculator for bazooka antenna,with measurements already calculated for frequeze used by radio amateurs

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