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When you mentioned resistance were you by chance referring to impedance? Impedance is basically resistance to an AC signal, like the signal that is transmitted from the back of the radio. Assuming that is what you meant...

Long drawn out description made short.

Impedance matching determines how well power is transferred from the transmission line to the antenna. Your SWR meter is a common device used to measure this.

Resonance determines how well the antenna radiates the power that is transferred to it. Your SWR meter cannot measure this, it requires an antenna analyzer to measure this. (Some other equipment used to be used for this, a noise bridge was it? Was before my time...)

There is a bit more to it than this but this should give you an idea what is happening and where the terms fit in to what is being said. Some antennas these can be tuned independently, others not so much. I tune for resonance when not given an option. Luckily, in most of those cases resonance is usually at a point that is also a good impedance match (1.5:1 or 2:1 SWR on an SWR meter, as that is what you are familiar with to my knowledge.)

The DB

<blockquote data-quote="The DB" data-source="post: 398410" data-attributes="member: 21346">When you mentioned resistance were you by chance referring to impedance?&nbsp; Impedance is basically resistance to an AC signal, like the signal that is transmitted from the back of the radio.&nbsp; Assuming that is what you meant...Long drawn out description made short.Impedance matching determines how well power is transferred from the transmission line to the antenna.&nbsp; Your SWR meter is a common device used to measure this.Resonance determines how well the antenna radiates the power that is transferred to it.&nbsp; Your SWR meter cannot measure this, it requires an antenna analyzer to measure this. (Some other equipment used to be used for this, a noise bridge was it?&nbsp; Was before my time...)There is a bit more to it than this but this should give you an idea what is happening and where the terms fit in to what is being said.&nbsp; Some antennas these can be tuned independently, others not so much.&nbsp; I tune for resonance when not given an option.&nbsp; Luckily, in most of those cases resonance is usually at a point that is also a good impedance match (1.5:1 or 2:1 SWR on an SWR meter, as that is what you are familiar with to my knowledge.)The DB</blockquote>

[QUOTE="The DB, post: 398410, member: 21346"] When you mentioned resistance were you by chance referring to impedance? Impedance is basically resistance to an AC signal, like the signal that is transmitted from the back of the radio. Assuming that is what you meant... Long drawn out description made short. Impedance matching determines how well power is transferred from the transmission line to the antenna. Your SWR meter is a common device used to measure this. Resonance determines how well the antenna radiates the power that is transferred to it. Your SWR meter cannot measure this, it requires an antenna analyzer to measure this. (Some other equipment used to be used for this, a noise bridge was it? Was before my time...) There is a bit more to it than this but this should give you an idea what is happening and where the terms fit in to what is being said. Some antennas these can be tuned independently, others not so much. I tune for resonance when not given an option. Luckily, in most of those cases resonance is usually at a point that is also a good impedance match (1.5:1 or 2:1 SWR on an SWR meter, as that is what you are familiar with to my knowledge.) The DB [/QUOTE]

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