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Shockwave, I too never realized that the PDLII was voltage fed either.

Since I've never heard such a difference described regarding the PDLII, I can only assume that very few owners ever wondered about their PDLII's feed point locations being reversed from the typical quad that is current fed.

If you check close again, you will also find that basically the PDLII is very similar to the Signal Engineering Lighting X, line of beam antennas.

IMO, there has to be some RF cancellation in the 1/2 wave matching network that allows mostly for only the quad wires to radiate. If I'm right maybe Bob could put his EzBob to work and help us understand how the currents might be flowing, that allows these voltage fed antennas to work without these very large feeders from radiating excessively, and messing up the nice quad pattern that is possible.

The big advantage using voltage feed is it allows for a single quad wire to be used as a dual polarity radiator, which is obvious with both of these antennas and very different from the more traditional current fed quad.

<blockquote data-quote="Marconi" data-source="post: 375620" data-attributes="member: 903">Shockwave, I too never realized that the PDLII was voltage fed either. &nbsp;Since I&#039;ve never heard such a difference described regarding the PDLII, I can only assume that very few owners ever wondered about their PDLII&#039;s feed point locations being reversed from the typical quad that is current fed.&nbsp;If you check close again, you will also find that basically the PDLII is very similar to the Signal Engineering Lighting X, line of beam antennas.&nbsp;IMO, there has to be some RF cancellation in the 1/2 wave matching network that allows mostly for only the quad wires to radiate. If I&#039;m right maybe Bob could put his EzBob to work and help us understand how the currents might be flowing, that allows these voltage fed antennas to work without these very large feeders from radiating excessively, and messing up the nice quad pattern that is possible.&nbsp;The big advantage using voltage feed is it allows for a single quad wire to be used as a dual polarity radiator, which is obvious with both of these antennas and very different from the more traditional current fed quad.</blockquote>

[QUOTE="Marconi, post: 375620, member: 903"] Shockwave, I too never realized that the PDLII was voltage fed either. Since I've never heard such a difference described regarding the PDLII, I can only assume that very few owners ever wondered about their PDLII's feed point locations being reversed from the typical quad that is current fed. If you check close again, you will also find that basically the PDLII is very similar to the Signal Engineering Lighting X, line of beam antennas. IMO, there has to be some RF cancellation in the 1/2 wave matching network that allows mostly for only the quad wires to radiate. If I'm right maybe Bob could put his EzBob to work and help us understand how the currents might be flowing, that allows these voltage fed antennas to work without these very large feeders from radiating excessively, and messing up the nice quad pattern that is possible. The big advantage using voltage feed is it allows for a single quad wire to be used as a dual polarity radiator, which is obvious with both of these antennas and very different from the more traditional current fed quad. [/QUOTE]

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