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A Control Box for the K9AY Loop Antenna
The control box allows to switch the direction and to change the termination resistor, so I decided to scan and reconstruct the drawing and PCB design for others who may need it
post 30 Jan 2024
Antennas Receiving Links →
About NDBs
NDBs or Non-Directional Beacons inhabit 190kHz to about 500kHz, the large majority being between 200 - 430kHz
AMRAD LF Active Whip Antenna
You can tune into LF activity with this easy-to-build and erect active antenna
Antenne per il radioascolto
Valutare e provare quei circuiti tanto odiati e tanto amati che si chiamano antenne attive
A Very Simple Broadband Receive Loop
I chose to build the triangular loops because they are cheap, easy, broadband, and exhibit a bi-directional pattern on the lower bands
80
NDBs or Non-Directional Beacons inhabit 190kHz to about 500kHz, the large majority being between 200 - 430kHz
You can tune into LF activity with this easy-to-build and erect active antenna
Valutare e provare quei circuiti tanto odiati e tanto amati che si chiamano antenne attive
I chose to build the triangular loops because they are cheap, easy, broadband, and exhibit a bi-directional pattern on the lower bands
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
Amateur radio kits by Kanga US
Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters