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HAARP Project
HAARP stands for High Frequency Active Auroral Research Program is a civilian and military installation located in the United States
post 30 Jul 2024
Antennas Receiving Links →
Antenna-attiva-vlf-hf
Di semplicissima esecuzione, non presenta alcun tipo di difficolta' per il suo montaggio
Antenne per la ricezione OL - OM
Dopo svariate prove l'antenna ha davvero le qualita' per essere un buon mezzo di ricezione nella gamma interessata
Active Ferrite Rod Antenna for HF
The red connector is for an optional external antenna wire and the black connector is for a ground wire. The red is wired to secondary winding and the black is connected to the circuit ground plan
Ascoltare i radiofari OL con una antenna filare accordata
Usare uno dei tiranti di acciaio come antenna filare
A Low Cost Loop Antenna
One of the greatest problems encountered when one likes DXing on the lower frequencies such as 1.8 and 3.5/3.8 Mhz is weak signal reception
80
Di semplicissima esecuzione, non presenta alcun tipo di difficolta' per il suo montaggio
Dopo svariate prove l'antenna ha davvero le qualita' per essere un buon mezzo di ricezione nella gamma interessata
The red connector is for an optional external antenna wire and the black connector is for a ground wire. The red is wired to secondary winding and the black is connected to the circuit ground plan
Usare uno dei tiranti di acciaio come antenna filare
One of the greatest problems encountered when one likes DXing on the lower frequencies such as 1.8 and 3.5/3.8 Mhz is weak signal reception
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal