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Hello Doc: Good to hear your doing well. And you enjoy the work.

The Alpha Delta Antenna that I have has no capacitor in the coils, so I am thinking the manufacture made the coils to have enough inductive reactance to act as a choke to the 40 meter RF Energy, and a loading coil to the 80 meter RF Energy. Not being real happy with the antenna, I am looking at an antenna tuner feeding a balanced transmission line to a longer dipole for all the bands. The Barn is about 100 or so feet away from the house. So the Ladder (Balanced) Line will has minimum loss, and its cheap.
I just get a few more knobs to turn.

The Dipole, Quad, Yagi, and Loop antennas I have used and worked on have all showed improved performance when a Balun is installed between the Balanced antenna and the coax. No Balanced antennas have left here without a Balun. I have not tested dipole antennas from 160 to 10 meters to see how effective the Balun is. I would make a 160/80/40 meter dipole with a Balun with a few extra winds as I use with the higher HF Frequencies. The Balun costs so little vs its perfomance increase, in applying balanced current to the antenna and choking off unwanted RF Energy down the coax.

Jay in the Mojave

<blockquote data-quote="Jay in the Mojave" data-source="post: 120581" data-attributes="member: 120">Hello Doc:&nbsp; Good to hear your doing well. And you enjoy the work.The Alpha Delta Antenna that I have has no capacitor in the coils, so I am thinking the manufacture made the coils to have enough inductive reactance to act as a choke to the 40 meter RF Energy, and a loading coil to the 80 meter RF Energy. Not being real happy with the antenna, I am looking at an antenna tuner feeding a balanced transmission line to a longer dipole for all the bands. The Barn is about 100 or so feet away from the house. So the Ladder (Balanced) Line will has minimum loss, and its cheap.I just get a few more knobs to turn.The Dipole, Quad, Yagi, and Loop antennas I have used and worked on have all showed improved performance when a Balun is installed between the Balanced antenna and the coax. No Balanced antennas have left here without a Balun. I have not tested dipole antennas from 160 to 10 meters to see how effective the Balun is. I would make a 160/80/40 meter dipole with a Balun with a few extra winds as I use with the higher HF Frequencies. The Balun costs so little vs its perfomance increase, in applying balanced current to the antenna and choking off unwanted RF Energy down the coax.Jay in the Mojave</blockquote>

[QUOTE="Jay in the Mojave, post: 120581, member: 120"] Hello Doc: Good to hear your doing well. And you enjoy the work. The Alpha Delta Antenna that I have has no capacitor in the coils, so I am thinking the manufacture made the coils to have enough inductive reactance to act as a choke to the 40 meter RF Energy, and a loading coil to the 80 meter RF Energy. Not being real happy with the antenna, I am looking at an antenna tuner feeding a balanced transmission line to a longer dipole for all the bands. The Barn is about 100 or so feet away from the house. So the Ladder (Balanced) Line will has minimum loss, and its cheap. I just get a few more knobs to turn. The Dipole, Quad, Yagi, and Loop antennas I have used and worked on have all showed improved performance when a Balun is installed between the Balanced antenna and the coax. No Balanced antennas have left here without a Balun. I have not tested dipole antennas from 160 to 10 meters to see how effective the Balun is. I would make a 160/80/40 meter dipole with a Balun with a few extra winds as I use with the higher HF Frequencies. The Balun costs so little vs its perfomance increase, in applying balanced current to the antenna and choking off unwanted RF Energy down the coax. Jay in the Mojave [/QUOTE]

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