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Antenna end fed per i 40 metri in soli 11 metri
Antenna end fed per i 20-40 metri in soli 11 metri di spazio
post 17 Mar 2024
Antenna End Fed Links →
EndFed Antenna, ferrite rod matching unit for 40mt
The antenna consists of 20M or 65.5 Ft of insulated stranded copper wire about 20 AWG or 1mm, if you are using it as a portable antenna
Endfed 6 - 40 Meter multiband Antenna
A trifilar wound, 9:1 UNUN unbalance to unbalance toroid matching transformer that will match the high input impedance of an end fed antenna
End fed half wave antenna EFHWA
A single wire,cut at 1\2 wavelength of the desired frequency,fed at one end,therefore without center isolators and coax cable to make it heavy and bulky
End Fed 1/2 Wave Vertical
This antenna lets you get onto 80m in a horizontal distance of about 12m 40ft when used as an inverted slope with the apex at 8m
End Fed Half Wave Antenna Tuner
The End Fed Half Wave Antenna EFHWA is a popular antenna for portable use There are very few simpler antennas
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The antenna consists of 20M or 65.5 Ft of insulated stranded copper wire about 20 AWG or 1mm, if you are using it as a portable antenna
A trifilar wound, 9:1 UNUN unbalance to unbalance toroid matching transformer that will match the high input impedance of an end fed antenna
A single wire,cut at 1\2 wavelength of the desired frequency,fed at one end,therefore without center isolators and coax cable to make it heavy and bulky
This antenna lets you get onto 80m in a horizontal distance of about 12m 40ft when used as an inverted slope with the apex at 8m
The End Fed Half Wave Antenna EFHWA is a popular antenna for portable use There are very few simpler antennas
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
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