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QRPGuys Portable No Tune End Fed Half Wave Antenna


Single band, 80m-10m end fed half wave wire antenna. It is designed as a highly portable wire antenna, easily set up as an inverted V, horizontal, sloper, or in the case of higher frequencies, a vertical radiator. Your feed line is essentially the counterpoise, so a separate one is not needed. The high impedance, half wave wire is matched to your 50 ohm feed point by an integral impedance matching toroid transformer, and rated is at 10 watts
post 17 Jun 2024
QRPGuys Portable No Tune End Fed Half Wave Antenna

Antenna End Fed Links

63



160 meter end fed
With this length of wire a coil of 11 turns is required, resonating the antenna on 1.950MHz with an SWR of 1.5:1

10 20 40m Endfed antenna
It's has a large bandwidth with a low SWR and has no radials

40m End Fed Half Wave EFHW Antenna
The feed point of the EFHW is in the order of 3000 to 5000 ohms while the 1/2 wave dipole will be closer to 50 ohms in the inverted V configuration

60 Meter End Fed Half Wave Antenna Tuner


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