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The gamma can only cause the high impedance of the end fed 5/8 wave to rise even higher. Since it's taking us further in the wrong direction to form the desired match, why use one at all? If an antenna tuner is an option and it can be placed right at the base of the flagpole, that would probably work best given the physical aspects of this disguise antenna.

You'll need to get some ground radials in the dirt using something like a garden edger to cut a slot in the ground. I'd put at least 16 radials in the ground at 9 feet long. Connect them to the ground of the antenna tuner, not to the flagpole. If the tuner has a longwire terminal, connect it to the flagpole. If not, connect the center pin of the SO-239 on the tuner to the flagpole.

Even though the flagpole may not be insulated from the ground, you can be sure it also is not at RF ground. Between the cement and relatively low coupling to ground a single short conductor in the dirt will give, this won't be a big issue once you match the antenna to the 50 ohm cable.

<blockquote data-quote="Shockwave" data-source="post: 395302" data-attributes="member: 10882">The gamma can only cause the high impedance of the end fed 5/8 wave to rise even higher. Since it&#039;s taking us further in the wrong direction to form the desired match, why use one at all? If an antenna tuner is an option and it can be placed right at the base of the flagpole, that would probably work best given the physical aspects of this disguise antenna.You&#039;ll need to get some ground radials in the dirt using something like a garden edger to cut a slot in the ground. I&#039;d put at least 16 radials in the ground at 9 feet long. Connect them to the ground of the antenna tuner, not to the flagpole. If the tuner has a longwire terminal, connect it to the flagpole. If not, connect the center pin of the SO-239 on the tuner to the flagpole.Even though the flagpole may not be insulated from the ground, you can be sure it also is not at RF ground. Between the cement and relatively low coupling to ground a single short conductor in the dirt will give, this won&#039;t be a big issue once you match the antenna to the 50 ohm cable.</blockquote>

[QUOTE="Shockwave, post: 395302, member: 10882"] The gamma can only cause the high impedance of the end fed 5/8 wave to rise even higher. Since it's taking us further in the wrong direction to form the desired match, why use one at all? If an antenna tuner is an option and it can be placed right at the base of the flagpole, that would probably work best given the physical aspects of this disguise antenna. You'll need to get some ground radials in the dirt using something like a garden edger to cut a slot in the ground. I'd put at least 16 radials in the ground at 9 feet long. Connect them to the ground of the antenna tuner, not to the flagpole. If the tuner has a longwire terminal, connect it to the flagpole. If not, connect the center pin of the SO-239 on the tuner to the flagpole. Even though the flagpole may not be insulated from the ground, you can be sure it also is not at RF ground. Between the cement and relatively low coupling to ground a single short conductor in the dirt will give, this won't be a big issue once you match the antenna to the 50 ohm cable. [/QUOTE]

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