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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
post 30 Jan 2024
A Very Simple Broadband Receive Loop

Antennas Receiving Links

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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


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

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

interface-for-digital-broadcasts-with-integrated-audio

Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free