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Dual band vertical antenna for 80 meter and 160 meter
A 22 meters Spiderbeam fiberglass mast with an insulated wire slightly wrapped around it. Verticals antennas need a lot of radials especially if is shortened on 160m
post 15 Apr 2024
Low Band Receiving Antennas Links →
Systeme d'antennes verticales en phase
Two vertical lambda / 4 antennas marked A and B and placed at a distance equal to lambda / 2 are supplied simultaneously by the same signal in transmission
The pennant antenna for low bands
This is the best receiving antenna for my location. It is small and very directional. The pennant is oriented to europe and can notch out 59+ 20 db signals to S-0. It dramatically reduces the stateside interference while improving the SNR on the low bands towards europe
The pennant antenna
La caratteristica principale, che mi fa preferire Flag, Delta e Pennants rispetto alle Ewe e K9AY loops, e' la loro indipendenza dalla terra, alla quale non c'e alcuna connessione
The Need for a High Performance Low Band RX antenna
Anyone attempting to work DX on Top-Band 160 Meters soon learns of the need for a good receiving antenna
The K6STI Loop at HC1PF
This is a specialized receiving antenna, omni directional and thus with a low RDF, but with low sensitivity to vertical polarized noise and, my worst problem, to local AM broadcasting signals
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Two vertical lambda / 4 antennas marked A and B and placed at a distance equal to lambda / 2 are supplied simultaneously by the same signal in transmission
This is the best receiving antenna for my location. It is small and very directional. The pennant is oriented to europe and can notch out 59+ 20 db signals to S-0. It dramatically reduces the stateside interference while improving the SNR on the low bands towards europe
La caratteristica principale, che mi fa preferire Flag, Delta e Pennants rispetto alle Ewe e K9AY loops, e' la loro indipendenza dalla terra, alla quale non c'e alcuna connessione
Anyone attempting to work DX on Top-Band 160 Meters soon learns of the need for a good receiving antenna
This is a specialized receiving antenna, omni directional and thus with a low RDF, but with low sensitivity to vertical polarized noise and, my worst problem, to local AM broadcasting signals
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Build a Three-Way Antenna Switch and Displa To use a wireless relay to select one of two high current capacity power relays
Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening factor