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EH per i 160 metri
Diametro del tubo 400 mm materiale del tubo PVC,schema collegamento dei condensatori
post 28 Jan 2024
Antenna 160 meter Links →
A portable vertical antenna for 160m
Having had some success with short 8ft long mobile aerials for ground-wave contacts on 160m, I was intrigued by the idea of making something a little larger for portable use
1.8mhz only 40 meters
Antenna a L invertita per i 160 metri caricata con una bobina in cima al tratto verticale
Tuner for 160 meter
Tuner for antenna 160 meter
160m Vertical 18m long spiderpole
Although this antenna is short for the 160m band, with its top-hat loading it is still very efficient
The inverted L antenna
The dimensions of the antenna are clear from the drawing. With this size, the antenna resonated at 1850kHz. Using a 12.5 meter telescope, the radiator impedance will be around 12 ohms, but the overall impedance will also complete the earth's impedance. If only 2 or 3 radials are used on the ground, the antenna can be powered directly by a 50 ohm coaxial cable
90
Having had some success with short 8ft long mobile aerials for ground-wave contacts on 160m, I was intrigued by the idea of making something a little larger for portable use
Antenna a L invertita per i 160 metri caricata con una bobina in cima al tratto verticale
Tuner for antenna 160 meter
Although this antenna is short for the 160m band, with its top-hat loading it is still very efficient
The dimensions of the antenna are clear from the drawing. With this size, the antenna resonated at 1850kHz. Using a 12.5 meter telescope, the radiator impedance will be around 12 ohms, but the overall impedance will also complete the earth's impedance. If only 2 or 3 radials are used on the ground, the antenna can be powered directly by a 50 ohm coaxial cable
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 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 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