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Dipolo with traps for 80 mts


This dipole for 40 and 80 Mts band. With coils, it is an excellent project -archi tested- in a band of 40 Mts. it has the same behavior of a dipole of 1/2 normal wave
post 09 May 2024
Dipolo with traps for 80 mts

Antenna 80 meter Links

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Dipolo bobinada 40-80 Mts
This dipole for 40 and 80 Mts band. With coils, it is an excellent project -archi tested- in a band of 40 Mts. It has the same behavior of a dipole of 1/2 normal wave, and in 80 Mts band

Inverted L Antenna 160 -80 -40 meters
Vertical Inverted L for the 160, 80 and 40- meter Bands

Double-L Antenna For 80/160
This 10 - 160 meter tuned horizontal loop antenna is fed with 450 ohm

Larga banda in 80mt



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

30 Volt Computer Power Supply Stack

30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground