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Coaxial-Antenna for 27 MHz


A 2 mm wire 1.79 meters long by 27 MHz. This antenna whip is shortened with an antenna coil. The coil of the antenna must have a diameter of 17 mm and have 17 turns that must be wrapped tightly against each other
post 25 Jan 2024
Coaxial-Antenna for 27 MHz

Antenna CB 27 MHz Links

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3 element yagi for 11meter, I1WQR
Antenna with control swr system Harpin gamma match

Yagi due progetti per gli 11m
Yagi 4 elements for 27 MHz

Dipolo filare con balun per 27 mHz
dipole centering on channel 20 CB or 27.205 mHz and using a 4 mm copper braid, from the above mentioned formula we get 150 x 0.965 / 27.205 = 5.32 meters

Hentenna freq 27.500
Hentanna is that if it is mounted horizontally, the resulting RF field is vertically polarized and vice versa

Antenna Stealth Vertical Dipole
An antenna for the 11 meters in the attic


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