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Extended Double Zepp Antenna
Install a 4:1 current balun on the end of the 450 ohm latter line stub
post 31 May 2024
Antenna Multibands Links →
Dipolo HF 160m/40m/20m/15m
Si tratta di un dipolo che permette di operare su 4 bande radiantistiche HF
Dipolo trappolato 20m e 40m
Le trappole risonanti a centro banda 20m ,cioe' a 14.150, sono risultate composte da 5 spire di RG316 avvolte in aria con diametro della spira piu' piccola 40mm e quello della spira piu' grande 50mm
Dipolo filare 5/20/40m
Una semplice antenna,utilizzando materiale di uso generico,e quindi di facile reperibilita
End-fed halfwave for 10-20 meters 5-band compact antennaThis fishing pole collapses down to 15.5 inches, so it's very compact and portable
Frecuencias de 7.1 Mhz y 3.650 Mhz
This dipole antenna is very good for those with small spaces.The antenna is designed with two load coils that cut the frequency in a given band
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Si tratta di un dipolo che permette di operare su 4 bande radiantistiche HF
Le trappole risonanti a centro banda 20m ,cioe' a 14.150, sono risultate composte da 5 spire di RG316 avvolte in aria con diametro della spira piu' piccola 40mm e quello della spira piu' grande 50mm
Una semplice antenna,utilizzando materiale di uso generico,e quindi di facile reperibilita
This dipole antenna is very good for those with small spaces.The antenna is designed with two load coils that cut the frequency in a given band
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