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Good point to consider about the polarity thing.

The top section is larger diameter (5/8" I think) for one thing and the tubing I used to replace the SS wires in the top hat was maybe 5x thicker. I had to try a few iterations to get to the middle of CB, but that is where I ended up. If I posted the length was 70"- 80" then I messed up. Here is Antenna Work Sheet and it shows the length of the top element ended up at 87.5" to tune to 27.205[ATTACH]2629[/ATTACH]

The skew in this scan was unusual and it may have been due to some errant signal or I punched a wrong button on the meter. Notice the SWR scan that followed this work was nice and smooth.

[QUOTE="Marconi, post: 207612, member: 903"] Good point to consider about the polarity thing. The top section is larger diameter (5/8" I think) for one thing and the tubing I used to replace the SS wires in the top hat was maybe 5x thicker. I had to try a few iterations to get to the middle of CB, but that is where I ended up. If I posted the length was 70"- 80" then I messed up. Here is Antenna Work Sheet and it shows the length of the top element ended up at 87.5" to tune to 27.205[ATTACH]2629.vB[/ATTACH] The skew in this scan was unusual and it may have been due to some errant signal or I punched a wrong button on the meter. Notice the SWR scan that followed this work was nice and smooth. [/QUOTE]

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