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you can fool an swr meter just by increasing and decreasing transmitter power.
let's face it. they're not laboratory grade precision measuring instruments.

you can bring ground / loss resistance down (thereby increasing antenna radiation efficiency) by eliminating losses in your installation. you can also reduce the radiation resistance of the antenna by shortening it but that would negatively impact antenna radiation efficiency. (to actually reduce the radiation resistance you would have to shorten it to make that happen but then, resonance will also shift as a result) in regard to ground / loss resistance the biggest improvement will be seen with a clean & proper mounting location with the feedpoint @ or immediately above a flat metal surface which extends to @ least a couple of feet or more in all azimuthal / horizontal directions and no conducting objects rising above the feedpoint in any direction away from the antenna. that's code for rooftop mount. it'll never perform any better anywhere else.

<blockquote data-quote="freecell" data-source="post: 777590" data-attributes="member: 30">you can fool an swr meter just by increasing and decreasing transmitter power.let&#039;s face it. they&#039;re not laboratory grade precision measuring instruments.you can bring ground / loss resistance down (thereby increasing antenna radiation efficiency) by eliminating losses in your installation. you can also reduce the radiation resistance of the antenna by shortening it but that would negatively impact antenna radiation efficiency. (to actually reduce the radiation resistance you would have to shorten it to make that happen but then, resonance will also shift as a result) in regard to ground / loss resistance the biggest improvement will be seen with a clean &amp; proper mounting location with the feedpoint @ or immediately above a flat metal surface which extends to @ least a couple of feet or more in all azimuthal / horizontal directions and no conducting objects rising above the feedpoint in any direction away from the antenna. that&#039;s code for rooftop mount. it&#039;ll never perform any better anywhere else.</blockquote>

[QUOTE="freecell, post: 777590, member: 30"] you can fool an swr meter just by increasing and decreasing transmitter power. let's face it. they're not laboratory grade precision measuring instruments. you can bring ground / loss resistance down (thereby increasing antenna radiation efficiency) by eliminating losses in your installation. you can also reduce the radiation resistance of the antenna by shortening it but that would negatively impact antenna radiation efficiency. (to actually reduce the radiation resistance you would have to shorten it to make that happen but then, resonance will also shift as a result) in regard to ground / loss resistance the biggest improvement will be seen with a clean & proper mounting location with the feedpoint @ or immediately above a flat metal surface which extends to @ least a couple of feet or more in all azimuthal / horizontal directions and no conducting objects rising above the feedpoint in any direction away from the antenna. that's code for rooftop mount. it'll never perform any better anywhere else. [/QUOTE]

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